0000034088-22-000011 | 10-K | XBRL Viewer

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Consolidated Statement Of Income - USD ($) $ in Millions	12 Months Ended
Consolidated Statement Of Income - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues and other income
Sales and other operating revenue	$ 276,692	$ 178,574	$ 255,583
Income from equity affiliates	6,657	1,732	5,441
Other income	2,291	1,196	3,914
Total revenues and other income	285,640	181,502	264,938
Costs and other deductions
Crude oil and product purchases	155,164	94,007	143,801
Production and manufacturing expenses	36,035	30,431	36,826
Selling, general and administrative expenses	9,574	10,168	11,398
Depreciation and depletion (includes impairments)	20,607	46,009	18,998
Exploration expenses, including dry holes	1,054	1,285	1,269
Non-service pension and postretirement benefit expense	786	1,205	1,235
Interest expense	947	1,158	830
Other taxes and duties	30,239	26,122	30,525
Total costs and other deductions	254,406	210,385	244,882
Income (loss) before income taxes	31,234	(28,883)	20,056
Income tax expense (benefit)	7,636	(5,632)	5,282
Net income (loss) including noncontrolling interests	23,598	(23,251)	14,774
Net income (loss) attributable to noncontrolling interests	558	(811)	434
Net income (loss) attributable to ExxonMobil	$ 23,040	$ (22,440)	$ 14,340
Earnings (loss) per common share (dollars)	$ 5.39	$ (5.25)	$ 3.36
Earnings (loss) per common share - assuming dilution (dollars)	$ 5.39	$ (5.25)	$ 3.36

Consolidated Statement Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss) including noncontrolling interests	$ 23,598	$ (23,251)	$ 14,774
Other comprehensive income (loss) (net of income taxes)
Foreign exchange translation adjustment	(872)	1,916	1,735
Adjustment for foreign exchange translation (gain)/loss included in net income	(2)	14	0
Postretirement benefits reserves adjustment (excluding amortization)	3,118	30	(2,092)
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs	925	896	582
Total other comprehensive income (loss)	3,169	2,856	225
Comprehensive income (loss) including noncontrolling interests	26,767	(20,395)	14,999
Comprehensive income (loss) attributable to noncontrolling interests	786	(743)	588
Comprehensive income (loss) attributable to ExxonMobil	$ 25,981	$ (19,652)	$ 14,411

Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 6,802	$ 4,364
Notes and accounts receivable - net	32,383	20,581
Inventories
Crude oil, products and merchandise	14,519	14,169
Materials and supplies	4,261	4,681
Other current assets	1,189	1,098
Total current assets	59,154	44,893
Investments, advances and long-term receivables	45,195	43,515
Property, plant and equipment, at cost, less accumulated depreciation and depletion	216,552	227,553
Other assets, including intangibles - net	18,022	16,789
Total assets	338,923	332,750
Current liabilities
Notes and loans payable	4,276	20,458
Accounts payable and accrued liabilities	50,766	35,221
Income taxes payable	1,601	684
Total current liabilities	56,643	56,363
Long-term debt	43,428	47,182
Postretirement benefits reserves	18,430	22,415
Deferred income tax liabilities	20,165	18,165
Long-term obligations to equity companies	2,857	3,253
Other long-term obligations	21,717	21,242
Total liabilities	163,240	168,620
Commitments and contingencies
Equity
Common stock without par value (9,000 million shares authorized, 8,019 million shares issued)	15,746	15,688
Earnings reinvested	392,059	383,943
Accumulated other comprehensive income	(13,764)	(16,705)
Common stock held in treasury (3,780 million shares in 2021 and 3,786 million shares in 2020)	(225,464)	(225,776)
ExxonMobil share of equity	168,577	157,150
Noncontrolling interests	7,106	6,980
Total equity	175,683	164,130
Total liabilities and equity	$ 338,923	$ 332,750

Consolidated Balance Sheet (Parenthetical) - $ / shares shares in Millions	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Common stock, without par value
Common stock, shares authorized	9,000	9,000
Common stock, shares issued	8,019	8,019
Common stock held in treasury, shares	3,780	3,786

Consolidated Statement Of Cash Flows - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2021

Dec. 31, 2020

Dec. 31, 2019

Cash flows from operating activities

Net income (loss) including noncontrolling interests

$ 23,598

$ (23,251)

$ 14,774

Adjustments for noncash transactions

Depreciation and depletion (includes impairments)

20,607

46,009

18,998

Deferred income tax charges/(credits)

303

(8,856)

(944)

Postretirement benefits expense in excess of/(less than) net payments

754

498

109

Other long-term obligation provisions in excess of/(less than) payments

(1,269)

(3,038)

Dividends received greater than/(less than) equity in current earnings of equity companies

(668)

979

(936)

Changes in operational working capital, excluding cash and debt

Reduction/(increase) - Notes and accounts receivable

(12,098)

5,384

(2,640)

Reduction/(increase) - Inventories

(489)

(315)

Reduction/(increase) - Other current assets

(71)

420

(234)

Increase/(reduction) - Accounts and other payables

16,820

(7,142)

3,725

Net (gain)/loss on asset sales

(1,207)

(1,710)

All other items - net

530

2,207

1,540

Net cash provided by operating activities

48,129

14,668

29,716

Cash flows from investing activities

Additions to property, plant and equipment

(12,076)

(17,282)

(24,361)

Proceeds from asset sales and returns of investments

3,176

999

3,692

Additional investments and advances

(2,817)

(4,857)

(3,905)

Other investing activities including collection of advances

1,482

2,681

1,490

Net cash used in investing activities

(10,235)

(18,459)

(23,084)

Cash flows from financing activities

Additions to long-term debt

23,186

7,052

Reductions in long-term debt

(8)

(1)

Additions to short-term debt

^[1]

12,687

35,396

18,967

Reductions in short-term debt

^[1]

(29,396)

(28,742)

(18,367)

Additions/(reductions) in commercial paper, and debt with three months or less maturity

(2,983)

(9,691)

1,011

Contingent consideration payments

(30)

(21)

Cash dividends to ExxonMobil shareholders

(14,924)

(14,865)

(14,652)

Cash dividends to noncontrolling interests

(224)

(188)

(192)

Changes in noncontrolling interests

(436)

623

158

Common stock acquired

(155)

(405)

(594)

Net cash provided by (used in) financing activities

(35,423)

5,285

(6,618)

Effects of exchange rate changes on cash

(33)

(219)

Increase/(decrease) in cash and cash equivalents

2,438

1,275

Cash and cash equivalents at beginning of year

4,364

3,089

3,042

Cash and cash equivalents at end of year

$ 6,802

$ 4,364

$ 3,089

[1]	Includes commercial paper with a maturity greater than three months.

Consolidated Statement Of Changes In Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock, without par value [Member]	ExxonMobil Share Of Earnings Reinvested [Member]	ExxonMobil Share Of Accumulated Other Comprehensive Income [Member]	ExxonMobil Share Of Common Stock Held In Treasury [Member]	ExxonMobil Share Of Equity [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2018	$ 198,528	$ 15,258	$ 421,653	$ (19,564)	$ (225,553)	$ 191,794	$ 6,734
Balance (in shares) - issued at Dec. 31, 2018	8,019
Balance (in shares) - in treasury at Dec. 31, 2018	(3,782)
Balance (in shares) - outstanding at Dec. 31, 2018	4,237
Amortization of stock-based awards	$ 697	697				697
Other	171	(318)				(318)	489
Net income (loss) for the year	14,774		14,340			14,340	434
Dividends - common shares (company)			(14,652)			(14,652)
Dividends - common shares (NCI)							(192)
Dividends - common shares (total)	(14,844)
Other comprehensive income	225			71		71	154
Acquisitions, at cost (company)					(594)	(594)
Acquisitions, at cost (NCI)							(331)
Acquisitions, at cost (total)	$ (925)
Acquisitions (in shares)	(8)
Dispositions	$ 312				312	312
Dispositions (in shares)	5
Balance at Dec. 31, 2019	$ 198,938	15,637	421,341	(19,493)	(225,835)	191,650	7,288
Balance (in shares) - issued at Dec. 31, 2019	8,019
Balance (in shares) - in treasury at Dec. 31, 2019	(3,785)
Balance (in shares) - outstanding at Dec. 31, 2019	4,234
Amortization of stock-based awards	$ 696	696				696
Other	47	(645)				(645)	692
Net income (loss) for the year	(23,251)		(22,440)			(22,440)	(811)
Dividends - common shares (company)			(14,865)			(14,865)
Dividends - common shares (NCI)							(188)
Dividends - common shares (total)	(15,053)
Cumulative effect of accounting change	(94)		(93)	0		(93)	(1)
Other comprehensive income	2,856			2,788		2,788	68
Acquisitions, at cost (company)					(405)	(405)
Acquisitions, at cost (NCI)							(68)
Acquisitions, at cost (total)	$ (473)
Acquisitions (in shares)	(8)
Dispositions	$ 464				464	464
Dispositions (in shares)	7
Balance at Dec. 31, 2020	$ 164,130	15,688	383,943	(16,705)	(225,776)	157,150	6,980
Balance (in shares) - issued at Dec. 31, 2020	8,019
Balance (in shares) - in treasury at Dec. 31, 2020	(3,786)
Balance (in shares) - outstanding at Dec. 31, 2020	4,233
Amortization of stock-based awards	$ 534	534				534
Other	(361)	(476)				(476)	115
Net income (loss) for the year	23,598		23,040			23,040	558
Dividends - common shares (company)			(14,924)			(14,924)
Dividends - common shares (NCI)							(224)
Dividends - common shares (total)	(15,148)
Other comprehensive income	3,169			2,941		2,941	228
Acquisitions, at cost (company)					(155)	(155)
Acquisitions, at cost (NCI)							(551)
Acquisitions, at cost (total)	$ (706)
Acquisitions (in shares)	(2)
Dispositions	$ 467				467	467
Dispositions (in shares)	8
Balance at Dec. 31, 2021	$ 175,683	$ 15,746	$ 392,059	$ (13,764)	$ (225,464)	$ 168,577	$ 7,106
Balance (in shares) - issued at Dec. 31, 2021	8,019
Balance (in shares) - in treasury at Dec. 31, 2021	(3,780)
Balance (in shares) - outstanding at Dec. 31, 2021	4,239

Summary Of Accounting Policies	12 Months Ended
Summary Of Accounting Policies	Dec. 31, 2021
Accounting Policies [Abstract]
Summary Of Accounting Policies	Summary of Accounting Policies Principles of Consolidation and Accounting for Investments The Consolidated Financial Statements include the accounts of subsidiaries the Corporation controls. They also include the Corporation’s share of the undivided interest in certain upstream assets, liabilities, revenues and expenses. Amounts representing the Corporation’s interest in entities that it does not control, but over which it exercises significant influence, are included in “Investments, advances and long-term receivables”. The Corporation’s share of the net income of these companies is included in the Consolidated Statement of Income caption “Income from equity affiliates”. Majority ownership is normally the indicator of control that is the basis on which subsidiaries are consolidated. However, certain factors may indicate that a majority-owned investment is not controlled and therefore should be accounted for using the equity method of accounting. These factors occur where the minority shareholders are granted by law or by contract substantive participating rights. These include the right to approve operating policies, expense budgets, financing and investment plans, and management compensation and succession plans. Investments in equity companies are assessed for possible impairment when events or changes in circumstances indicate that the carrying value of an investment may not be recoverable. Examples of key indicators include a history of operating losses, negative earnings and cash flow outlook, significant downward revisions to oil and gas reserves, and the financial condition and prospects for the investee’s business segment or geographic region. If the decline in value of the investment is other than temporary, the carrying value of the investment is written down to fair value. In the absence of market prices for the investment, discounted cash flows are used to assess fair value. Investments in equity securities other than consolidated subsidiaries and equity method investments are measured at fair value with changes in fair value recognized in net income. The Corporation uses the modified approach for equity securities that do not have a readily determinable fair value. This modified approach measures investments at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions in a similar investment of the same issuer. The Corporation’s share of the cumulative foreign exchange translation adjustment for equity method investments is reported in “Accumulated other comprehensive income”. Revenue Recognition The Corporation generally sells crude oil, natural gas and petroleum and chemical products under short-term agreements at prevailing market prices. In some cases (e.g., natural gas), products may be sold under long-term agreements, with periodic price adjustments to reflect market conditions. Revenue is recognized at the amount the Corporation expects to receive when the customer has taken control, which is typically when title transfers and the customer has assumed the risks and rewards of ownership. The prices of certain sales are based on price indices that are sometimes not available until the next period. In such cases, estimated realizations are accrued when the sale is recognized, and are finalized when the price is available. Such adjustments to revenue from performance obligations satisfied in previous periods are not significant. Payment for revenue transactions is typically due within 30 days. Future volume delivery obligations that are unsatisfied at the end of the period are expected to be fulfilled through ordinary production or purchases. These performance obligations are based on market prices at the time of the transaction and are fully constrained due to market price volatility. Purchases and sales of inventory with the same counterparty that are entered into in contemplation of one another are combined and recorded as exchanges measured at the book value of the item sold. “Sales and other operating revenue” and “Notes and accounts receivable” primarily arise from contracts with customers. Long-term receivables are primarily from non-customers. Contract assets are mainly from marketing assistance programs and are not significant. Contract liabilities are mainly customer prepayments and accruals of expected volume discounts and are not significant. Income and Other Taxes The Corporation excludes from the Consolidated Statement of Income certain sales and value-added taxes imposed on and concurrent with revenue-producing transactions with customers and collected on behalf of governmental authorities. Similar taxes, for which the Corporation is not considered to be an agent for the government, are reported on a gross basis (included in both “Sales and other operating revenue” and “Other taxes and duties”). The Corporation accounts for U.S. tax on global intangible low-taxed income as an income tax expense in the period in which it is incurred. Derivative Instruments The Corporation may use derivative instruments for trading purposes and to offset exposures associated with commodity prices, foreign currency exchange rates and interest rates that arise from existing assets, liabilities, firm commitments and forecasted transactions. All derivative instruments, except those designated as normal purchase and normal sale, are recorded at fair value. Derivative assets and liabilities with the same counterparty are netted if the right of offset exists and certain other criteria are met. Collateral payables or receivables are netted against derivative assets and derivative liabilities, respectively. Recognition and classification of the gain or loss that results from adjusting a derivative to fair value depends on the purpose for the derivative. All gains and losses from derivative instruments for which the Corporation does not apply hedge accounting are immediately recognized in earnings. The Corporation may designate derivatives as fair value or cash flow hedges. For fair value hedges, the gain or loss from derivative instruments and the offsetting gain or loss from the hedged item are recognized in earnings. For cash flow hedges, the gain or loss from the derivative instrument is initially reported as a component of other comprehensive income and subsequently reclassified into earnings in the period that the forecasted transaction affects earnings. Fair Value Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Hierarchy levels 1, 2 and 3 are terms for the priority of inputs to valuation techniques used to measure fair value. Hierarchy level 1 inputs are quoted prices in active markets for identical assets or liabilities. Hierarchy level 2 inputs are inputs other than quoted prices included within level 1 that are directly or indirectly observable for the asset or liability. Hierarchy level 3 inputs are inputs that are not observable in the market. Inventories Crude oil, products and merchandise inventories are carried at the lower of current market value or cost (generally determined under the last-in, first-out method – LIFO). Inventory costs include expenditures and other charges (including depreciation) directly and indirectly incurred in bringing the inventory to its existing condition and location. Selling expenses and general and administrative expenses are reported as period costs and excluded from inventory cost. Inventories of materials and supplies are valued at cost or less. Property, Plant and Equipment Cost Basis. The Corporation uses the “successful efforts” method to account for its exploration and production activities. Under this method, costs are accumulated on a field-by-field basis. Costs incurred to purchase, lease, or otherwise acquire a property (whether unproved or proved) are capitalized when incurred. Exploratory well costs are carried as an asset when the well has found a sufficient quantity of reserves to justify its completion as a producing well and where the Corporation is making sufficient progress assessing the reserves and the economic and operating viability of the project. Exploratory well costs not meeting these criteria are charged to expense. Other exploratory expenditures, including geophysical costs and annual lease rentals, are expensed as incurred. Development costs, including costs of productive wells and development dry holes, are capitalized. Depreciation, Depletion and Amortization. Depreciation, depletion and amortization are primarily determined under either the unit-of-production method or the straight-line method, which is based on estimated asset service life taking obsolescence into consideration. Acquisition costs of proved properties are amortized using a unit-of-production method, computed on the basis of total proved oil and natural gas reserve volumes. Capitalized exploratory drilling and development costs associated with productive depletable extractive properties are amortized using the unit-of-production rates based on the amount of proved developed reserves of oil and gas that are estimated to be recoverable from existing facilities using current operating methods. Under the unit-of-production method, oil and natural gas volumes are considered produced once they have been measured through meters at custody transfer or sales transaction points at the outlet valve on the lease or field storage tank. In the event that the unit-of-production method does not result in an equitable allocation of cost over the economic life of an upstream asset, an alternative method is used. The straight-line method is used in limited situations where the expected life of the asset does not reasonably correlate with that of the underlying reserves. For example, certain assets used in the production of oil and natural gas have a shorter life than the reserves, and as such, the Corporation uses straight-line depreciation to ensure the asset is fully depreciated by the end of its useful life. To the extent that proved reserves for a property are substantially de-booked and that property continues to produce such that the resulting depreciation charge does not result in an equitable allocation of cost over the expected life, assets will be depreciated using a unit-of-production method based on reserves determined at the most recent SEC price which results in a more meaningful quantity of proved reserves, appropriately adjusted for production and technical changes. Investments in refinery, chemical process, and lubes basestock manufacturing equipment are generally depreciated on a straight-line basis over a 25-year life. Service station buildings and fixed improvements are generally depreciated over a 20-year life. Maintenance and repairs, including planned major maintenance, are expensed as incurred. Major renewals and improvements are capitalized and the assets replaced are retired. Impairment Assessment. The Corporation tests assets or groups of assets for recoverability on an ongoing basis whenever events or changes in circumstances indicate that the carrying amounts may not be recoverable. Among the events or changes in circumstances which could indicate that the carrying value of an asset or asset group may not be recoverable are the following: •a significant decrease in the market price of a long-lived asset; •a significant adverse change in the extent or manner in which an asset is being used or in its physical condition including a significant decrease in current and projected reserve volumes; •a significant adverse change in legal factors or in the business climate that could affect the value, including an adverse action or assessment by a regulator; •an accumulation of project costs significantly in excess of the amount originally expected; •a current-period operating loss combined with a history and forecast of operating or cash flow losses; and •a current expectation that, more likely than not, a long-lived asset will be sold or otherwise disposed of significantly before the end of its previously estimated useful life. The Corporation has a robust process to monitor for indicators of potential impairment across its asset groups throughout the year. This process is aligned with the requirements of ASC 360 and ASC 932, and relies in part on the Corporation’s planning and budgeting cycle. Asset valuation analysis, profitability reviews and other periodic control processes assist the Corporation in assessing whether events or changes in circumstances indicate the carrying amounts of any of its assets may not be recoverable. Because the lifespans of the vast majority of the Corporation’s major assets are measured in decades, the future cash flows of these assets are predominantly based on long-term oil and natural gas commodity prices, industry margins, and development and production costs. Significant reductions in the Corporation’s view of oil or natural gas commodity prices or margin ranges, especially the longer-term prices and margins, and changes in the development plans, including decisions to defer, reduce, or eliminate planned capital spending, can be an indicator of potential impairment. Other events or changes in circumstances, can be indicators of potential impairment as well. In general, the Corporation does not view temporarily low prices or margins as an indication of impairment. Management believes that prices over the long term must be sufficient to generate investments in energy supply to meet global demand. Although prices will occasionally drop significantly, industry prices over the long term will continue to be driven by market supply and demand fundamentals. On the supply side, industry production from mature fields is declining. This is being offset by investments to generate production from new discoveries, field developments and technology, and efficiency advancements. OPEC investment activities and production policies also have an impact on world oil supplies. The demand side is largely a function of general economic activities, alternative energy sources and levels of prosperity. During the lifespan of its major assets, the Corporation expects that oil and gas prices and industry margins will experience significant volatility, and consequently these assets will experience periods of higher earnings and periods of lower earnings, or even losses. In assessing whether events or changes in circumstances indicate the carrying value of an asset may not be recoverable, the Corporation considers recent periods of operating losses in the context of its longer-term view of prices and margins. In the Upstream, the standardized measure of discounted cash flows included in the Supplemental Information on Oil and Gas Exploration and Production Activities is required to use prices based on the average of first-of-month prices in the year. These prices represent discrete points in time and could be higher or lower than the Corporation’s price assumptions which are used for impairment assessments. The Corporation believes the standardized measure does not provide a reliable estimate of the expected future cash flows to be obtained from the development and production of its oil and gas properties or of the value of its oil and gas reserves and therefore does not consider it relevant in determining whether events or changes in circumstances indicate the need for an impairment assessment. Energy Outlook and Cash Flow Assessment. The annual planning and budgeting process, known as the Corporate Plan, is the mechanism by which resources (capital, operating expenses, and people) are allocated across the Corporation. The foundation for the assumptions supporting the Corporate Plan is the Energy Outlook, which contains the Corporation’s demand and supply projections based on its assessment of current trends in technology, government policies, consumer preferences, geopolitics, and economic development. Reflective of the existing global policy environment, the Energy Outlook does not project the degree of required future policy and technology advancement and deployment for the world, or the Corporation, to meet net-zero by 2050. As future policies and technology advancements emerge, they will be incorporated into the Energy Outlook, and the Corporation’s business plans will be updated accordingly. If events or changes in circumstances indicate that the carrying value of an asset may not be recoverable, the Corporation estimates the future undiscounted cash flows of the affected properties to judge the recoverability of carrying amounts. In performing this assessment, assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of the cash flows of other groups of assets. Cash flows used in recoverability assessments are based on assumptions which are developed in the Corporate Plan, which is reviewed and approved by the Board of Directors, and are consistent with the criteria management uses to evaluate investment opportunities. These evaluations make use of the Corporation’s assumptions of future capital allocations, crude oil and natural gas commodity prices including price differentials, refining and chemical margins, volumes, development and operating costs including greenhouse gas emission prices, and foreign currency exchange rates. Volumes are based on projected field and facility production profiles, throughput, or sales. Management’s estimate of upstream production volumes used for projected cash flows makes use of proved reserve quantities and may include risk-adjusted unproved reserve quantities. The greenhouse gas emission prices reflect existing or anticipated policy actions that countries or localities may take in support of Paris Accord pledges. Cash flow estimates for impairment testing exclude the effects of derivative instruments. Fair value of Impaired Assets. An asset group is impaired if its estimated undiscounted cash flows are less than the asset group's carrying value. Impairments are measured by the amount by which the carrying value exceeds fair value. The assessment of fair value is based upon the views of a likely market participant. The principal parameters used to establish fair value include estimates of acreage values and flowing production metrics from comparable market transactions, market-based estimates of historical cash flow multiples, and discounted cash flows. Inputs and assumptions used in discounted cash flow models include estimates of future production volumes, throughput and product sales volumes, commodity prices which are consistent with the average of third-party industry experts and government agencies, refining and chemical margins, drilling and development costs, operating costs and discount rates which are reflective of the characteristics of the asset group. Other Impairments Related to Property, Plant and Equipment. Unproved properties are assessed periodically to determine whether they have been impaired. Significant unproved properties are assessed for impairment individually, and valuation allowances against the capitalized costs are recorded based on the Corporation's future development plans, the estimated economic chance of success and the length of time that the Corporation expects to hold the properties. Properties that are not individually significant are aggregated by groups and amortized based on development risk and average holding period. Long-lived assets that are held for sale are evaluated for possible impairment by comparing the carrying value of the asset with its fair value less the cost to sell. If the net book value exceeds the fair value less cost to sell, the assets are considered impaired and adjusted to the lower value. Gains on sales of proved and unproved properties are only recognized when there is neither uncertainty about the recovery of costs applicable to any interest retained nor any substantial obligation for future performance by the Corporation. Interest costs incurred to finance expenditures during the construction phase of multiyear projects are capitalized as part of the historical cost of acquiring the constructed assets. The project construction phase commences with the development of the detailed engineering design and ends when the constructed assets are ready for their intended use. Capitalized interest costs are included in property, plant and equipment and are depreciated over the service life of the related assets. Environmental Liabilities Liabilities for environmental costs are recorded when it is probable that obligations have been incurred and the amounts can be reasonably estimated. These liabilities are not reduced by possible recoveries from third parties, and projected cash expenditures are not discounted. Foreign Currency Translation The Corporation selects the functional reporting currency for its international subsidiaries based on the currency of the primary economic environment in which each subsidiary operates. Downstream and Chemical operations primarily use the local currency. However, the U.S. dollar is used in countries with a history of high inflation (primarily in Latin America) and Singapore, which predominantly sells into the U.S. dollar export market. Upstream operations which are relatively self-contained and integrated within a particular country, such as in Canada and Europe, use the local currency. Some Upstream operations, primarily in Asia and Africa, use the U.S. dollar because they predominantly sell crude and natural gas production into U.S. dollar-denominated markets. For all operations, gains or losses from remeasuring foreign currency transactions into the functional currency are included in income.

Restructuring Activities

12 Months Ended

Dec. 31, 2021

Restructuring and Related Activities [Abstract]

Restructuring and Related Activities Disclosure

Restructuring Activities

During 2020, ExxonMobil conducted an extensive global review of staffing levels and subsequently commenced targeted workforce reductions within a number of countries to improve efficiency and reduce costs. The programs were completed by the end of 2021 and included both voluntary and involuntary employee separations as well as reductions in contractors.

In 2021, the Corporation recorded before-tax charges of $58 million, consisting primarily of employee separation costs, associated with announced workforce reduction programs in Singapore and Europe. These costs are captured in “Selling, general and administrative expenses” on the Consolidated Statement of Income and reported within Corporate and Financing. The Corporation does not expect any further charges related to the previously disclosed workforce reduction programs.

The following table summarizes the reserves and charges related to the workforce reduction programs announced in late 2020 and early 2021. These are recorded in “Accounts payable and accrued liabilities” on the Consolidated Balance Sheet and do not include charges related to employee reductions associated with any portfolio changes or other projects.



	2021	2020
	(millions of dollars)
Beginning Balance	403	—
Additions/adjustments	58	450
Payments made	(384)	(47)
Ending Balance	77	403

The cash outflows associated with the remaining liability balance of $77 million at December 31, 2021 will occur over the next few years, mainly in the form of monthly payments.

Miscellaneous Financial Information

12 Months Ended

Dec. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Miscellaneous Financial Information

Research and development expenses totaled $843 million in 2021, $1,016 million in 2020, and $1,214 million in 2019.

Net income included before-tax aggregate foreign exchange transaction losses of $18 million, $24 million and $104 million in 2021, 2020 and 2019, respectively.

In 2021, 2020, and 2019, net income included gains of $54 million, $41 million, and $523 million, respectively, attributable to the combined effects of LIFO inventory accumulations and drawdowns. The aggregate replacement cost of inventories was estimated to exceed their LIFO carrying values by $14.0 billion and $5.4 billion at December 31, 2021, and 2020, respectively.

Crude oil, products and merchandise as of year-end 2021 and 2020 consist of the following:


	Dec 31, 2021	Dec 31, 2020
	(millions of dollars)
Crude oil	4,162	5,354
Petroleum products	5,081	5,138
Chemical products	3,354	3,023
Gas/other	1,922	654
Total	14,519	14,169

Mainly as a result of declines in prices for crude oil, natural gas and petroleum products and a significant decline in its market capitalization at the end of the first quarter of 2020, the Corporation recognized before-tax goodwill impairment charges of $611 million in Upstream, Downstream, and Chemical reporting units. Fair value of the goodwill reporting units primarily reflected market-based estimates of historical EBITDA multiples at the end of the first quarter. Charges related to goodwill impairments in 2020 are included in “Depreciation and depletion” on the Consolidated Statement of Income

Other Comprehensive Income Information

12 Months Ended

Dec. 31, 2021

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Other Comprehensive Income Information


ExxonMobil Share of Accumulated Other Comprehensive Income	Cumulative Foreign Exchange Translation Adjustment	Postretirement Benefits Reserves Adjustment	Total
	(millions of dollars)
Balance as of December 31, 2018	(13,881)	(5,683)	(19,564)
Current period change excluding amounts reclassified from accumulated other comprehensive income	1,435	(1,927)	(492)
Amounts reclassified from accumulated other comprehensive income	—	563	563
Total change in accumulated other comprehensive income	1,435	(1,364)	71
Balance as of December 31, 2019	(12,446)	(7,047)	(19,493)

Current period change excluding amounts reclassified from accumulated other comprehensive income (1)	1,818	95	1,913
Amounts reclassified from accumulated other comprehensive income	14	861	875
Total change in accumulated other comprehensive income	1,832	956	2,788
Balance as of December 31, 2020	(10,614)	(6,091)	(16,705)

Current period change excluding amounts reclassified from accumulated other comprehensive income (1)	(883)	2,938	2,055
Amounts reclassified from accumulated other comprehensive income	(2)	888	886
Total change in accumulated other comprehensive income	(885)	3,826	2,941
Balance as of December 31, 2021	(11,499)	(2,265)	(13,764)

(1)Cumulative Foreign Exchange Translation Adjustment includes net investment hedge gain/(loss) net of taxes of $329 million and $(355) million in 2021 and 2020, respectively.


Amounts Reclassified Out of Accumulated Other Comprehensive Income - Before-tax Income/(Expense)	2021	2020	2019
	(millions of dollars)
Foreign exchange translation gain/(loss) included in net income (Statement of Income line: Other income)	2	(14)	—
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs (Statement of Income line: Non-service pension and postretirement benefit expense)	(1,229)	(1,158)	(751)


Income Tax (Expense)/Credit For Components of Other Comprehensive Income	2021	2020	2019
	(millions of dollars)
Foreign exchange translation adjustment	(114)	118	88
Postretirement benefits reserves adjustment (excluding amortization)	(983)	109	719
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs	(304)	(262)	(169)
Total	(1,401)	(35)	638

Cash Flow Information

12 Months Ended

Dec. 31, 2021

Supplemental Cash Flow Information [Abstract]

Cash Flow Information

The Consolidated Statement of Cash Flows provides information about changes in cash and cash equivalents. Highly liquid investments with maturities of three months or less when acquired are classified as cash equivalents.

For 2021, the “Net (gain)/loss on asset sales” on the Consolidated Statement of Cash Flows includes before-tax amounts from the sale of non-operated upstream assets in the United Kingdom Central and Northern North Sea and the sale of ExxonMobil's global Santoprene business. The United Kingdom Central and Northern North Sea assets were sold to Neo Energy, resulting in a before-tax gain of $0.4 billion and cash proceeds of $0.7 billion in 2021. The Santoprene business, including two chemical manufacturing sites in Pensacola, Florida and Newport, Wales, was sold to Celanese, resulting in a before-tax gain of $0.8 billion and cash proceeds of $1.1 billion in 2021. For 2019, the “Net (gain)/loss on asset sales” line includes before-tax amounts from the sale of non-operated upstream assets in Norway and upstream asset transactions in the U.S. The Norway assets were sold for $4.5 billion, resulting in a gain of $3.7 billion and cash proceeds of $3.1 billion in 2019.

For 2020, the “Depreciation and depletion” and “Deferred income tax charges/(credits)” on the Consolidated Statement of Cash Flows include impacts from asset impairments, primarily in Upstream.


	2021	2020	2019
	(millions of dollars)
Income taxes paid	5,341	2,428	7,018
Cash interest paid
Included in cash flows from operating activities	819	786	560
Capitalized, included in cash flows from investing activities	655	665	731
Total cash interest paid	1,474	1,451	1,291

Additional Working Capital Information

12 Months Ended

Dec. 31, 2021

Additional Working Capital Information [Abstract]

Additional Working Capital Information


	Dec 31, 2021	Dec 31, 2020
	(millions of dollars)
Notes and accounts receivable
Trade, less reserves of $159 million and $96 million	26,883	16,339
Other, less reserves of $381 million and $378 million	5,500	4,242
Total	32,383	20,581
Notes and loans payable
Bank loans	276	222
Commercial paper	1,608	17,306
Long-term debt due within one year	2,392	2,930
Total	4,276	20,458
Accounts payable and accrued liabilities
Trade payables	26,623	17,499
Payables to equity companies	8,885	6,476
Accrued taxes other than income taxes	3,896	3,408
Other	11,362	7,838
Total	50,766	35,221

The Corporation has short-term committed lines of credit of $10.7 billion which were unused as of December 31, 2021. These lines are available for general corporate purposes.

The weighted-average interest rate on short-term borrowings outstanding was 0.2 percent and 0.2 percent at December 31, 2021, and 2020, respectively.

Equity Company Information

12 Months Ended

Dec. 31, 2021

Equity Method Investment, Financial Statement, Reported Amounts [Abstract]

Equity Company Information

The summarized financial information below includes amounts related to certain less-than-majority-owned companies and majority-owned subsidiaries where minority shareholders possess the right to participate in significant management decisions (see Note 1). These companies are primarily engaged in oil and gas exploration and production, and natural gas marketing in North America; natural gas exploration, production and distribution in Europe; liquefied natural gas (LNG) operations and transportation of crude oil in Africa; and exploration, production, LNG operations, and the manufacture and sale of petroleum and petrochemical products in Asia and the Middle East. Also included are several refining, petrochemical manufacturing and marketing ventures.

The share of total equity company revenues from sales to ExxonMobil consolidated companies was 10 percent, 11 percent and 13 percent in the years 2021, 2020 and 2019, respectively.

The Corporation’s ownership in these ventures is in the form of shares in corporate joint ventures as well as interests in partnerships. Differences between the company’s carrying value of an equity investment and its underlying equity in the net assets of the affiliate are assigned to the extent practicable to specific assets and liabilities based on the company’s analysis of the factors giving rise to the difference. The amortization of this difference, as appropriate, is included in “Income from equity affiliates” on the Consolidated Statement of Income.

Impairments related to upstream equity investments of $0.2 billion and $0.6 billion in 2021 and 2020, respectively, are included in “Income from equity affiliates” or “Other income” on the Consolidated Statement of Income.


	2021		2020		2019
Equity Company Financial Summary	Total	ExxonMobil Share	Total	ExxonMobil Share	Total	ExxonMobil Share
	(millions of dollars)
Total revenues	116,972	34,995	69,954	21,282	102,365	31,240
Income before income taxes	35,142	9,278	12,743	2,830	29,424	7,927
Income taxes	11,010	2,763	4,333	870	9,725	2,500
Income from equity affiliates	24,132	6,515	8,410	1,960	19,699	5,427

Current assets	45,267	15,542	33,419	11,969	36,035	12,661
Long-term assets	150,699	41,614	150,358	41,457	143,321	40,001
Total assets	195,966	57,156	183,777	53,426	179,356	52,662
Current liabilities	28,862	8,297	18,827	5,245	24,583	6,939
Long-term liabilities	63,138	19,084	66,053	19,927	61,022	18,158
Net assets	103,966	29,775	98,897	28,254	93,751	27,565

A list of significant equity companies as of December 31, 2021, together with the Corporation’s percentage ownership interest, is detailed below:


			Percentage Ownership Interest
Upstream
Aera Energy LLC			48
Barzan Gas Company Limited			7
BEB Erdgas und Erdoel GmbH & Co. KG			50
Caspian Pipeline Consortium			8
CORAL FLNG, S.A.			25
Cross Timbers Energy, LLC			50
GasTerra B.V.			25
Golden Pass LNG Terminal LLC			30
Golden Pass Pipeline LLC			30
Marine Well Containment Company LLC			10
Mozambique Rovuma Venture, S.p.A.			36
Nederlandse Aardolie Maatschappij B.V.			50
Papua New Guinea Liquefied Natural Gas Global Company LDC			33
Permian Highway Pipeline LLC			20
Qatar Liquefied Gas Company Limited			10
Qatar Liquefied Gas Company Limited (2)			24
Ras Laffan Liquefied Natural Gas Company Limited			25
Ras Laffan Liquefied Natural Gas Company Limited (II)			31
Ras Laffan Liquefied Natural Gas Company Limited (3)			30
South Hook LNG Terminal Company Limited			24
Tengizchevroil, LLP			25
Terminale GNL Adriatico S.r.l.			71

Downstream
Alberta Products Pipe Line Ltd.			45
Fujian Refining & Petrochemical Co. Ltd.			25
Permian Express Partners LLC			12
Saudi Aramco Mobil Refinery Company Ltd.			50

Chemical
Al-Jubail Petrochemical Company			50
Gulf Coast Growth Ventures LLC			50
Saudi Yanbu Petrochemical Co.			50

Investments, Advances And Long-Term Receivables

12 Months Ended

Dec. 31, 2021

Long-term Investments and Receivables, Net [Abstract]

Investments, Advances And Long-Term Receivables

Investments, Advances and Long-Term Receivables


	Dec 31, 2021	Dec 31, 2020
	(millions of dollars)
Equity method company investments and advances
Investments	31,225	29,772
Advances, net of allowances of $34 million and $31 million	8,326	8,812
Total equity method company investments and advances	39,551	38,584
Equity securities carried at fair value and other investments at adjusted cost basis	138	143
Long-term receivables and miscellaneous, net of reserves of $5,974 million and $6,115 million	5,506	4,788
Total	45,195	43,515

Property, Plant And Equipment And Asset Retirement Obligations

12 Months Ended

Dec. 31, 2021

Property, Plant And Equipment And Asset Retirement Obligations [Abstract]

Property, Plant And Equipment And Asset Retirement Obligations

Property, Plant and Equipment and Asset Retirement Obligations


	December 31, 2021		December 31, 2020
Property, Plant and Equipment	Cost	Net	Cost	Net
	(millions of dollars)
Upstream	375,813	156,951	386,614	167,472
Downstream	57,947	27,417	57,922	27,716
Chemical	43,288	21,793	42,868	21,924
Other	18,014	10,391	17,918	10,441
Total	495,062	216,552	505,322	227,553

In 2021, the Corporation identified situations where events or changes in circumstances indicated that the carrying value of certain long-lived assets may not be recoverable and performed impairment assessments. Before-tax impairment charges of $1.2 billion, including impairments of suspended wells, were recognized during the year largely as a result of changes to Upstream development plans.

In 2020, as part of the Corporation's annual review and approval of its business and strategic plan, a decision was made to no longer develop a significant portion of the dry gas portfolio in the U.S., Canada and Argentina. The impairment of these assets resulted in before-tax charges of $24.4 billion in Upstream. Other before-tax impairment charges in 2020 included $0.9 billion in Upstream, $0.5 billion in Downstream, and $0.1 billion in Chemical. In 2019, before-tax impairment charges were $0.1 billion.

Impairment charges are primarily recognized in the lines “Depreciation and depletion” and “Exploration expenses, including dry holes” on the Consolidated Statement of Income. Accumulated depreciation and depletion totaled $278,510 million at the end of 2021 and $277,769 million at the end of 2020.

Asset Retirement Obligations

The Corporation incurs retirement obligations for certain assets. The fair values of these obligations are recorded as liabilities on a discounted basis, which is typically at the time the assets are installed. In the estimation of fair value, the Corporation uses assumptions and judgments regarding such factors as the existence of a legal obligation for an asset retirement obligation, technical assessments of the assets, estimated amounts and timing of settlements, discount rates, and inflation rates. Asset retirement obligations incurred in the current period were Level 3 fair value measurements. The costs associated with these liabilities are capitalized as part of the related assets and depreciated as the reserves are produced. Over time, the liabilities are accreted for the change in their present value.

Asset retirement obligations for downstream and chemical facilities generally become firm at the time the facilities are permanently shut down and dismantled. These obligations may include the costs of asset disposal and additional soil remediation. However, these sites have indeterminate lives based on plans for continued operations and as such, the fair value of the conditional legal obligations cannot be measured, since it is impossible to estimate the future settlement dates of such obligations.

The following table summarizes the activity in the liability for asset retirement obligations:


	2021	2020	2019
	(millions of dollars)
Balance at January 1	11,247	11,280	12,103
Accretion expense and other provisions	548	584	649
Reduction due to property sales	(1,002)	(77)	(1,085)
Payments made	(444)	(669)	(827)
Liabilities incurred	42	26	89
Foreign currency translation	(147)	239	84
Revisions	386	(136)	267
Balance at December 31	10,630	11,247	11,280

The long-term Asset Retirement Obligations were $9,985 million and $10,558 million at December 31, 2021, and 2020, respectively, and are included in “Other long-term obligations” on the Consolidated Balance Sheet. Estimated cash payments in 2022 and 2023 are $645 million and $648 million, respectively.

Accounting For Suspended Exploratory Well Costs

12 Months Ended

Dec. 31, 2021

Capitalized Exploratory Well Costs [Abstract]

Accounting For Suspended Exploratory Well Costs

Accounting for Suspended Exploratory Well Costs

The Corporation continues capitalization of exploratory well costs when the well has found a sufficient quantity of reserves to justify its completion as a producing well and the Corporation is making sufficient progress assessing the reserves and the economic and operating viability of the project. The term “project” as used in this report can refer to a variety of different activities and does not necessarily have the same meaning as in any government payment transparency reports.

The following two tables provide details of the changes in the balance of suspended exploratory well costs as well as an aging summary of those costs.


Change in capitalized suspended exploratory well costs:	2021	2020	2019
	(millions of dollars)
Balance beginning at January 1	4,382	4,613	4,160
Additions pending the determination of proved reserves	420	208	532
Charged to expense	(325)	(318)	(46)
Reclassifications to wells, facilities and equipment based on the determination of proved reserves	(328)	(174)	(37)
Divestments/Other	(29)	53	4
Ending balance at December 31	4,120	4,382	4,613
Ending balance attributed to equity companies included above	306	306	306


Period end capitalized suspended exploratory well costs:	2021	2020	2019
	(millions of dollars)
Capitalized for a period of one year or less	420	208	532
Capitalized for a period of between one and five years	1,642	1,828	2,206
Capitalized for a period of between five and ten years	1,657	1,932	1,411
Capitalized for a period of greater than ten years	401	414	464
Capitalized for a period greater than one year - subtotal	3,700	4,174	4,081
Total	4,120	4,382	4,613

Exploration activity often involves drilling multiple wells, over a number of years, to fully evaluate a project. The table below provides a breakdown of the number of projects with only exploratory well costs capitalized for a period of one year or less and those that have had exploratory well costs capitalized for a period greater than one year.


	2021	2020	2019
Number of projects that only have exploratory well costs capitalized for a period of one year or less	4	3	4
Number of projects that have exploratory well costs capitalized for a period greater than one year	30	34	46
Total	34	37	50

Of the 30 projects that have exploratory well costs capitalized for a period greater than one year as of December 31, 2021, 13 projects have drilling in the preceding year or exploratory activity planned in the next two years, while the remaining 17 projects are those with completed exploratory activity progressing toward development.

The table below provides additional detail for those 17 projects, which total $2,874 million.


Country/Project	Dec. 31, 2021	Years Wells Drilled / Acquired			Comment
(millions of dollars)
Argentina
–La Invernada	72	2014			Evaluating development plan to tie into planned infrastructure.
Australia
–Gorgon Area Ullage	327	1994	-	2015	Evaluating development plans to tie into existing LNG facilities.
Canada
–Hibernia North	26	2019			Awaiting capacity in existing/planned infrastructure.
Guyana
–Yellowtail	138	2019	-	2020	Continuing discussions with the government regarding development plan.
Kazakhstan
–Kairan	53	2004	-	2007	Evaluating commercialization and field development alternatives, while continuing discussions with the government regarding the development plan.
Mozambique
–Rovuma LNG Future Non-Straddling Train	120	2017			Evaluating/progressing development plan to tie into planned LNG facilities.
–Rovuma LNG Phase 1	150	2017			Progressing development plan to tie into planned LNG facilities.
–Rovuma LNG Unitized Trains	35	2017			Evaluating/progressing development plan to tie into planned LNG facilities.
Nigeria
–Bonga North	34	2004	-	2009	Evaluating/progressing development plan for tieback to existing/planned infrastructure.
–Bonga SW	3	2001			Evaluating/progressing development plan for tieback to existing/planned infrastructure.
–Pegi	32	2009			Awaiting capacity in existing/planned infrastructure.
Papua New Guinea
–Muruk	165	2017	-	2019	Evaluating/progressing development plans.
–Papua LNG	246	2017			Evaluating/progressing development plans.
–P'nyang	116	2012	-	2018	Evaluating/progressing development plans.
Romania
–Neptun Deep	536	2012	-	2016	Continuing discussions with the government regarding development plan.
Tanzania
–Tanzania Block 2	525	2012	-	2015	Evaluating development alternatives, while continuing discussions with the government regarding development plan.
Vietnam
–Blue Whale	296	2011	-	2015	Evaluating/progressing development plans.
Total 2021 (17 projects)	2,874

Leases

12 Months Ended

Dec. 31, 2021

Lessee Disclosure [Abstract]

Leases

The Corporation and its consolidated affiliates generally purchase the property, plant and equipment used in operations, but there are situations where assets are leased, primarily for drilling equipment, tankers, office buildings, railcars, and other moveable equipment. Right of use assets and lease liabilities are established on the balance sheet for leases with an expected term greater than one year by discounting the amounts fixed in the lease agreement for the duration of the lease which is reasonably certain, considering the probability of exercising any early termination and extension options. The portion of the fixed payment related to service costs for drilling equipment, tankers and finance leases is excluded from the calculation of right of use assets and lease liabilities. Generally, assets are leased only for a portion of their useful lives, and are accounted for as operating leases. In limited situations assets are leased for nearly all of their useful lives, and are accounted for as finance leases.

Variable payments under these lease agreements are not significant. Residual value guarantees, restrictions, or covenants related to leases, and transactions with related parties are also not significant. In general, leases are capitalized using the incremental borrowing rate of the leasing affiliate. The Corporation’s activities as a lessor are not significant.


	Operating Leases			Finance Leases
Lease Cost	2021	2020	2019	2021	2020	2019
	(millions of dollars)
Operating lease cost	1,542	1,553	1,434
Short-term and other (net of sublease rental income)	1,351	1,613	2,042
Amortization of right of use assets				133	143	121
Interest on lease liabilities				158	169	133
Total (1)	2,893	3,166	3,476	291	312	254

(1)Includes $681 million, $827 million and $1,164 million for drilling rigs and related equipment operating leases in 2021, 2020 and 2019, respectively.


	Operating Leases				Finance Leases
Balance Sheet	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
	(millions of dollars)
Right of use assets
Included in Other assets, including intangibles - net	6,082		6,078
Included in Property, plant and equipment - net					2,412		2,188
Total right of use assets	6,082		6,078		2,412		2,188

Lease liability due within one year
Included in Accounts payable and accrued liabilities	1,367		1,168		4		4
Included in Notes and loans payable					111		102
Long-term lease liability
Included in Other long-term obligations	3,823		3,994
Included in Long-term debt					1,761		1,680
Included in Long-term obligations to equity companies					131		135
Total lease liability (2)	5,190		5,162		2,007		1,921

Weighted average remaining lease term (years)	10		11		20		20
Weighted average discount rate (percent)	2.3	%	2.9	%	7.7	%	8.9	%

(2)Includes $935 million and $832 million for drilling rigs and related equipment operating leases in 2021 and 2020, respectively.


	Operating Leases	Finance Leases
Maturity Analysis of Lease Liabilities	December 31, 2021
	(millions of dollars)
2022	1,456	262
2023	1,141	256
2024	574	253
2025	437	246
2026	384	382
2027 and beyond	1,978	2,111
Total lease payments	5,970	3,510
Discount to present value	(780)	(1,503)
Total lease liability	5,190	2,007

In addition to the lease liabilities in the table immediately above, at December 31, 2021, undiscounted commitments for leases not yet commenced totaled $962 million for operating leases and $4,960 million for finance leases. Estimated cash payments for operating and finance leases not yet commenced are $310 million and $415 million for 2022 and 2023 respectively. The finance leases relate to floating production storage and offloading vessels, LNG transportation vessels, and a long-term hydrogen purchase agreement. The underlying assets for these finance leases were primarily designed by, and are being constructed by, the lessors.


	Operating Leases			Finance Leases
Other Information	2021	2020	2019	2021	2020	2019
	(millions of dollars)
Cash paid for amounts included in the measurement of lease liabilities
Cash flows from operating activities	1,135	1,159	1,116	20	31	54
Cash flows from investing activities	291	283	258
Cash flows from financing activities				110	94	177

Noncash right of use assets recorded for lease liabilities
For January 1 adoption of ASC 842			3,263
In exchange for lease liabilities during the period	1,405	735	3,663	200	108	422

Leases


	Operating Leases			Finance Leases
Lease Cost	2021	2020	2019	2021	2020	2019
	(millions of dollars)
Operating lease cost	1,542	1,553	1,434
Short-term and other (net of sublease rental income)	1,351	1,613	2,042
Amortization of right of use assets				133	143	121
Interest on lease liabilities				158	169	133
Total (1)	2,893	3,166	3,476	291	312	254

(1)Includes $681 million, $827 million and $1,164 million for drilling rigs and related equipment operating leases in 2021, 2020 and 2019, respectively.


	Operating Leases				Finance Leases
Balance Sheet	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
	(millions of dollars)
Right of use assets
Included in Other assets, including intangibles - net	6,082		6,078
Included in Property, plant and equipment - net					2,412		2,188
Total right of use assets	6,082		6,078		2,412		2,188

Lease liability due within one year
Included in Accounts payable and accrued liabilities	1,367		1,168		4		4
Included in Notes and loans payable					111		102
Long-term lease liability
Included in Other long-term obligations	3,823		3,994
Included in Long-term debt					1,761		1,680
Included in Long-term obligations to equity companies					131		135
Total lease liability (2)	5,190		5,162		2,007		1,921

Weighted average remaining lease term (years)	10		11		20		20
Weighted average discount rate (percent)	2.3	%	2.9	%	7.7	%	8.9	%

(2)Includes $935 million and $832 million for drilling rigs and related equipment operating leases in 2021 and 2020, respectively.


	Operating Leases	Finance Leases
Maturity Analysis of Lease Liabilities	December 31, 2021
	(millions of dollars)
2022	1,456	262
2023	1,141	256
2024	574	253
2025	437	246
2026	384	382
2027 and beyond	1,978	2,111
Total lease payments	5,970	3,510
Discount to present value	(780)	(1,503)
Total lease liability	5,190	2,007


	Operating Leases			Finance Leases
Other Information	2021	2020	2019	2021	2020	2019
	(millions of dollars)
Cash paid for amounts included in the measurement of lease liabilities
Cash flows from operating activities	1,135	1,159	1,116	20	31	54
Cash flows from investing activities	291	283	258
Cash flows from financing activities				110	94	177

Noncash right of use assets recorded for lease liabilities
For January 1 adoption of ASC 842			3,263
In exchange for lease liabilities during the period	1,405	735	3,663	200	108	422

Earnings Per Share

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Earnings Per Share


Earnings per common share	2021	2020	2019
Net income (loss) attributable to ExxonMobil (millions of dollars)	23,040	(22,440)	14,340

Weighted average number of common shares outstanding (millions of shares)	4,275	4,271	4,270

Earnings (loss) per common share (dollars) (1)	5.39	(5.25)	3.36

Dividends paid per common share (dollars)	3.49	3.48	3.43

(1)The earnings (loss) per common share and earnings (loss) per common share - assuming dilution are the same in each period shown.

Financial Instruments And Derivatives

12 Months Ended

Dec. 31, 2021

Financial Instruments And Derivatives [Abstract]

Financial Instruments And Derivatives

Financial Instruments and Derivatives

Financial Instruments. The estimated fair value of financial instruments at December 31, 2021 and December 31, 2020, and the related hierarchy level for the fair value measurement is as follows:


	December 31, 2021
	(millions of dollars)
	Fair Value
	Level 1	Level 2	Level 3	Total Gross Assets & Liabilities	Effect of Counterparty Netting	Effect of Collateral Netting	Difference in Carrying Value and Fair Value	Net Carrying Value
Assets
Derivative assets (1)	1,422	1,523	—	2,945	(1,930)	(28)	—	987
Advances to/receivables from equity companies (2)(6)	—	3,076	5,373	8,449	—	—	(123)	8,326
Other long-term financial assets (3)	1,134	—	1,058	2,192	—	—	181	2,373

Liabilities
Derivative liabilities (4)	1,701	2,594	—	4,295	(1,930)	(306)	—	2,059
Long-term debt (5)	44,454	88	3	44,545	—	—	(2,878)	41,667
Long-term obligations to equity companies (6)	—	—	3,084	3,084	—	—	(227)	2,857
Other long-term financial liabilities (7)	—	—	902	902	—	—	58	960


	December 31, 2020
	(millions of dollars)
	Fair Value
	Level 1	Level 2	Level 3	Total Gross Assets & Liabilities	Effect of Counterparty Netting	Effect of Collateral Netting	Difference in Carrying Value and Fair Value	Net Carrying Value
Assets
Derivative assets (1)	1,247	194	—	1,441	(1,282)	(6)	—	153
Advances to/receivables from equity companies (2)(6)	—	3,275	5,904	9,179	—	—	(367)	8,812
Other long-term financial assets (3)	1,235	—	944	2,179	—	—	125	2,304

Liabilities
Derivative liabilities (4)	1,443	254	—	1,697	(1,282)	(202)	—	213
Long-term debt (5)	50,263	125	4	50,392	—	—	(4,890)	45,502
Long-term obligations to equity companies (6)	—	—	3,530	3,530	—	—	(277)	3,253
Other long-term financial liabilities (7)	—	—	964	964	—	—	44	1,008

(1)Included in the Balance Sheet lines: Notes and accounts receivable - net and Other assets, including intangibles - net

(2)Included in the Balance Sheet line: Investments, advances and long-term receivables

(3)Included in the Balance Sheet lines: Investments, advances and long-term receivables and Other assets, including intangibles - net

(4)Included in the Balance Sheet lines: Accounts payable and accrued liabilities and Other long-term obligations

(5)Excluding finance lease obligations

(6)Advances to/receivables from equity companies and long-term obligations to equity companies are mainly designated as hierarchy level 3 inputs. The fair value is calculated by discounting the remaining obligations by a rate consistent with the credit quality and industry of the company.

(7)Included in the Balance Sheet line: Other long-term obligations. Includes contingent consideration related to a prior year acquisition where fair value is based on expected drilling activities and discount rates.

At December 31, 2021 and December 31, 2020, the Corporation had $641 million and $504 million of collateral under master netting arrangements not offset against the derivatives on the Consolidated Balance Sheet, primarily related to initial margin requirements.

Derivative Instruments. The Corporation’s size, strong capital structure, geographic diversity and the complementary nature of the Upstream, Downstream and Chemical businesses reduce the Corporation’s enterprise-wide risk from changes in commodity prices, currency rates and interest rates. In addition, the Corporation uses commodity-based contracts, including derivatives, to manage commodity price risk and for trading purposes. Commodity contracts held for trading purposes are presented in the Consolidated Statement of Income on a net basis in the line “Sales and other operating revenue”. The Corporation’s commodity derivatives are not accounted for under hedge accounting. At times, the Corporation also enters into currency and interest rate derivatives, none of which are material to the Corporation’s financial position as of December 31, 2021 and 2020, or results of operations for 2021, 2020 and 2019.

Credit risk associated with the Corporation’s derivative position is mitigated by several factors, including the use of derivative clearing exchanges and the quality of and financial limits placed on derivative counterparties. The Corporation maintains a system of controls that includes the authorization, reporting and monitoring of derivative activity.

The net notional long/(short) position of derivative instruments at December 31, 2021 and December 31, 2020, was as follows:


	December 31,	December 31,
	2021	2020
	(millions)
Crude oil (barrels)	82	40
Petroleum products (barrels)	(48)	(46)
Natural gas (MMBTUs)	(115)	(500)

Realized and unrealized gains/(losses) on derivative instruments that were recognized in the Consolidated Statement of Income are included in the following lines on a before-tax basis:


	2021	2020	2019
	(millions of dollars)
Sales and other operating revenue	(3,818)	404	(412)
Crude oil and product purchases	48	(407)	179
Total	(3,770)	(3)	(233)

Long-Term Debt

12 Months Ended

Dec. 31, 2021

Long-term Debt, Unclassified [Abstract]

Long-Term Debt

At December 31, 2021, long-term debt consisted of $37,611 million due in U.S. dollars and $5,817 million representing the U.S. dollar equivalent at year-end exchange rates of amounts payable in foreign currencies. These amounts exclude that portion of long-term debt, totaling $2,392 million, which matures within one year and is included in current liabilities.

On December 17, 2021, the Corporation irrevocably deposited sufficient cash with the Trustee to fund the redemption of its 2.397% notes due 2022. After the deposit of the funds, the Corporation was released from its obligation and the debt was extinguished.

The amounts of long-term debt, excluding finance lease obligations, maturing in each of the four years after December 31, 2022, in millions of dollars, are: 2023 – $4,039; 2024 – $3,836; 2025 – $4,597; and 2026 – $3,575. At December 31, 2021, the Corporation's unused long-term lines of credit were $0.6 billion.

The Corporation may use non-derivative financial instruments, such as its foreign currency-denominated debt, as hedges of its net investments in certain foreign subsidiaries. Under this method, the change in the carrying value of the financial instruments due to foreign exchange fluctuations is reported in accumulated other comprehensive income. As of December 31, 2021, the Corporation has designated its $5.1 billion of Euro-denominated long-term debt and related accrued interest as a net investment hedge of its European business. The net investment hedge is deemed to be perfectly effective.

Summarized long-term debt at year-end 2021 and 2020 are shown in the table below:


	Average Rate (1)	Dec 31, 2021	Dec 31, 2020
		(millions of dollars)
Exxon Mobil Corporation (2)
2.397% notes due 2022		—	1,150
1.902% notes due 2022		—	750
Floating-rate notes due 2022 (Issued 2015)		—	500
Floating-rate notes due 2022 (Issued 2019)		—	750
1.571% notes due 2023		2,750	2,750
2.726% notes due 2023		1,250	1,250
3.176% notes due 2024		1,000	1,000
2.019% notes due 2024		1,000	1,000
2.709% notes due 2025		1,750	1,750
2.992% notes due 2025		2,794	2,807
3.043% notes due 2026		2,500	2,500
2.275% notes due 2026		1,000	1,000
3.294% notes due 2027		1,000	1,000
2.440% notes due 2029		1,250	1,250
3.482% notes due 2030		2,000	2,000
2.610% notes due 2030		2,000	2,000
2.995% notes due 2039		750	750
4.227% notes due 2040		2,087	2,091
3.567% notes due 2045		1,000	1,000
4.114% notes due 2046		2,500	2,500
3.095% notes due 2049		1,500	1,500
4.327% notes due 2050		2,750	2,750
3.452% notes due 2051		2,750	2,750
Exxon Mobil Corporation - Euro-denominated
0.142% notes due 2024		1,698	1,841
0.524% notes due 2028		1,133	1,227
0.835% notes due 2032		1,133	1,227
1.408% notes due 2039		1,133	1,227
XTO Energy Inc. (3)
6.100% senior notes due 2036		191	192
6.750% senior notes due 2037		291	294
6.375% senior notes due 2038		226	227



Industrial revenue bonds due 2022-2051	0.028%	2,244	2,461
Other U.S. dollar obligations		64	78
Other foreign currency obligations		37	61
Finance lease obligations	7.438%	1,761	1,680
Debt issuance costs		(114)	(131)
Total long-term debt		43,428	47,182

(1)Average effective interest rate for debt and average imputed interest rate for finance leases at December 31, 2021.

(2)Includes premiums of $131 million in 2021 and $148 million in 2020.

(3)Includes premiums of $82 million in 2021 and $87 million in 2020.

Incentive Program

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Incentive Program

The 2003 Incentive Program provides for grants of stock options, stock appreciation rights (SARs), restricted stock, and other forms of awards. Awards may be granted to eligible employees of the Corporation and those affiliates at least 50 percent owned. Outstanding awards are subject to certain forfeiture provisions contained in the program or award instrument. Options and SARs may be granted at prices not less than 100 percent of market value on the date of grant and have a maximum life of 10 years. The maximum number of shares of stock that may be issued under the 2003 Incentive Program is 220 million. Awards that are forfeited, expire, or are settled in cash, do not count against this maximum limit. The 2003 Incentive Program does not have a specified term. New awards may be made until the available shares are depleted, unless the Board terminates the plan early. At the end of 2021, remaining shares available for award under the 2003 Incentive Program were 66 million.

Restricted Stock and Restricted Stock Units. Awards totaling 8,133 thousand, 8,681 thousand, and 8,936 thousand of restricted (nonvested) common stock units were granted in 2021, 2020, and 2019, respectively. Compensation expense for these awards is based on the price of the stock at the date of grant and is recognized in income over the requisite service period. Shares for these awards are issued to employees from treasury stock. The units that are settled in cash are recorded as liabilities and their changes in fair value are recognized over the vesting period. During the applicable restricted periods, the shares and units may not be sold or transferred and are subject to forfeiture. The majority of the awards have graded vesting periods, with 50 percent of the shares and units in each award vesting after three years and the remaining 50 percent vesting after seven years. Awards granted to a small number of senior executives have vesting periods of five years for 50 percent of the award and of 10 years for the remaining 50 percent of the award, except that for awards granted prior to 2020 the vesting of the 10-year portion of the award is delayed until retirement if later than 10 years.

The following tables summarize information about restricted stock and restricted stock units for the year ended December 31, 2021.


	2021
Restricted stock and units outstanding	Shares	Weighted Average Grant-Date Fair Value per Share
	(thousands)	(dollars)
Issued and outstanding at January 1	39,585	80.43
Awards issued in 2021	8,753	41.29
Vested	(9,142)	86.16
Forfeited	(274)	66.54
Issued and outstanding at December 31	38,922	70.38


Value of restricted stock units	2021	2020	2019
Grant price (dollars)	62.76	41.15	68.77

Value at date of grant:	(millions of dollars)
Units settled in stock	461	325	559
Units settled in cash	49	32	55
Total value	510	357	614

As of December 31, 2021, there was $1,268 million of unrecognized compensation cost related to the nonvested restricted awards. This cost is expected to be recognized over a weighted-average period of 4.4 years. The compensation cost charged against income for the restricted stock and restricted stock units was $612 million, $672 million, and $741 million for 2021, 2020, and 2019, respectively. The income tax benefit recognized in income related to this compensation expense was $49 million, $51 million, and $51 million for the same periods, respectively. The fair value of shares and units vested in 2021, 2020, and 2019 was $562 million, $367 million, and $647 million, respectively. Cash payments of $48 million, $34 million, and $56 million for vested restricted stock units settled in cash were made in 2021, 2020, and 2019, respectively.

Litigation And Other Contingencies

12 Months Ended

Dec. 31, 2021

Loss Contingency [Abstract]

Litigation And Other Contingencies

Litigation and Other Contingencies

Litigation. A variety of claims have been made against ExxonMobil and certain of its consolidated subsidiaries in a number of pending lawsuits. Management has regular litigation reviews, including updates from corporate and outside counsel, to assess the need for accounting recognition or disclosure of these contingencies. The Corporation accrues an undiscounted liability for those contingencies where the incurrence of a loss is probable and the amount can be reasonably estimated. If a range of amounts can be reasonably estimated and no amount within the range is a better estimate than any other amount, then the minimum of the range is accrued. The Corporation does not record liabilities when the likelihood that the liability has been incurred is probable but the amount cannot be reasonably estimated or when the liability is believed to be only reasonably possible or remote. For contingencies where an unfavorable outcome is reasonably possible and which are significant, the Corporation discloses the nature of the contingency and, where feasible, an estimate of the possible loss. For purposes of our contingency disclosures, “significant” includes material matters, as well as other matters, which management believes should be disclosed. ExxonMobil will continue to defend itself vigorously in these matters. Based on a consideration of all relevant facts and circumstances, the Corporation does not believe the ultimate outcome of any currently pending lawsuit against ExxonMobil will have a material adverse effect upon the Corporation’s operations, financial condition, or financial statements taken as a whole.

Other Contingencies. The Corporation and certain of its consolidated subsidiaries were contingently liable at December 31, 2021, for guarantees relating to notes, loans and performance under contracts. Where guarantees for environmental remediation and other similar matters do not include a stated cap, the amounts reflect management’s estimate of the maximum potential exposure.


	December 31, 2021
	Equity Company Obligations (1)	Other Third-Party Obligations	Total
	(millions of dollars)
Guarantees
Debt-related	1,109	140	1,249
Other	775	6,498	7,273
Total	1,884	6,638	8,522

(1)ExxonMobil share.

Additionally, the Corporation and its affiliates have numerous long-term sales and purchase commitments in their various business activities, all of which are expected to be fulfilled with no adverse consequences material to the Corporation’s operations or financial condition.

The Corporation has previously provided disclosure regarding (i) claims being pursued by the Corporation against the Venezuelan National Oil Company in connection with a 2007 Venezuelan nationalization decree, and (ii) claims being pursued by the Corporation against the Nigerian National Petroleum Corporation in connection with a dispute involving crude oil lifting entitlements which was originally subject to arbitration in 2011. Both matters remain ongoing but, as previously disclosed, the Corporation does not expect the ultimate resolution of either matter to have a material effect upon the Corporation’s operations or financial condition. In the interest of disclosure simplification, the Corporation will no longer include specific disclosure of these matters in its annual or quarterly reports unless future developments alter the foregoing conclusions.

Pension And Other Postretirement Benefits

12 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

Pension And Other Postretirement Benefits

Pension and Other Postretirement Benefits

The benefit obligations and plan assets associated with the Corporation’s principal benefit plans are measured on December 31.


	Pension Benefits				Other Postretirement
	U.S.		Non-U.S.		Benefits
	2021	2020	2021	2020	2021	2020
	(percent)
Weighted-average assumptions used to determine benefit obligations at December 31
Discount rate	3.00	2.80	2.20	1.60	3.10	2.80
Long-term rate of compensation increase	4.50	5.50	4.20	4.20	4.50	5.50

	(millions of dollars)
Change in benefit obligation
Benefit obligation at January 1	21,662	20,959	33,626	29,918	8,135	8,113
Service cost	919	965	774	707	188	181
Interest cost	558	708	526	657	221	277
Actuarial loss/(gain) (1)	(747)	1,287	(2,803)	2,344	(881)	(66)
Benefits paid (2) (3)	(3,810)	(1,987)	(1,550)	(1,317)	(517)	(510)
Foreign exchange rate changes	—	—	(1,162)	1,375	3	23
Amendments, divestments and other	(71)	(270)	81	(58)	116	117
Benefit obligation at December 31	18,511	21,662	29,492	33,626	7,265	8,135
Accumulated benefit obligation at December 31	15,781	17,502	27,373	30,952	—	—

(1)Actuarial loss/(gain) primarily reflects changes in discount rates, lower long-term rates of compensation and a lower health care cost trend rate.

(2)Benefit payments for funded and unfunded plans.

(3)For 2021 and 2020, other postretirement benefits paid are net of $9 million and $16 million of Medicare subsidy receipts, respectively.

For selection of the discount rate for U.S. plans, several sources of information are considered, including interest rate market indicators and the effective discount rate determined by use of a yield curve based on high-quality, noncallable bonds applied to the estimated cash outflows for benefit payments. For major non-U.S. plans, the discount rate is determined by using a spot yield curve of high-quality, local-currency-denominated bonds at an average maturity approximating that of the liabilities.

The measurement of the accumulated postretirement benefit obligation assumes a health care cost trend rate of 4.0 percent in 2023 and subsequent years.


	Pension Benefits				Other Postretirement
	U.S.		Non-U.S.		Benefits
	2021	2020	2021	2020	2021	2020
	(millions of dollars)
Change in plan assets
Fair value at January 1	15,300	13,636	26,216	22,916	446	425
Actual return on plan assets	479	2,269	571	2,795	20	42
Foreign exchange rate changes	—	—	(605)	1,011	—	—
Company contribution	794	1,004	293	597	28	37
Benefits paid (1)	(3,307)	(1,609)	(1,167)	(992)	(54)	(58)
Other	—	—	(428)	(111)	—	—
Fair value at December 31	13,266	15,300	24,880	26,216	440	446

(1) Benefit payments for funded plans.

The funding levels of all qualified pension plans are in compliance with standards set by applicable law or regulation. As shown in the table below, certain smaller U.S. pension plans and a number of non-U.S. pension plans are not funded because local applicable tax rules and regulatory practices do not encourage funding of these plans. All defined benefit pension obligations, regardless of the funding status of the underlying plans, are fully supported by the financial strength of the Corporation or the respective sponsoring affiliate.


	Pension Benefits
	U.S.		Non-U.S.
	2021	2020	2021	2020
	(millions of dollars)
Assets in excess of/(less than) benefit obligation
Balance at December 31
Funded plans	(3,570)	(4,156)	554	(1,223)
Unfunded plans	(1,675)	(2,206)	(5,166)	(6,187)
Total	(5,245)	(6,362)	(4,612)	(7,410)

The authoritative guidance for defined benefit pension and other postretirement plans requires an employer to recognize the overfunded or underfunded status of a defined benefit postretirement plan as an asset or liability in its statement of financial position and to recognize changes in that funded status in the year in which the changes occur through other comprehensive income.


	Pension Benefits				Other Postretirement Benefits
	U.S.		Non-U.S.
	2021	2020	2021	2020	2021	2020
	(millions of dollars)
Assets in excess of/(less than) benefit obligation
Balance at December 31 (1)	(5,245)	(6,362)	(4,612)	(7,410)	(6,825)	(7,689)

Amounts recorded in the consolidated balance sheet consist of:
Other assets	—	—	2,544	1,931	—	—
Current liabilities	(206)	(377)	(267)	(273)	(323)	(327)
Postretirement benefits reserves	(5,039)	(5,985)	(6,889)	(9,068)	(6,502)	(7,362)
Total recorded	(5,245)	(6,362)	(4,612)	(7,410)	(6,825)	(7,689)

Amounts recorded in accumulated other comprehensive income consist of:
Net actuarial loss/(gain)	1,865	3,102	2,841	5,904	197	1,164
Prior service cost	(324)	(275)	262	208	(232)	(274)
Total recorded in accumulated other comprehensive income	1,541	2,827	3,103	6,112	(35)	890

(1) Fair value of assets less benefit obligation shown on the preceding page.

The long-term expected rate of return on funded assets shown below is established for each benefit plan by developing a forward-looking, long-term return assumption for each asset class, taking into account factors such as the expected real return for the specific asset class and inflation. A single, long-term rate of return is then calculated as the weighted average of the target asset allocation percentages and the long-term return assumption for each asset class.


	Pension Benefits						Other Postretirement Benefits
	U.S.			Non-U.S.
	2021	2020	2019	2021	2020	2019	2021	2020	2019
Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31	(percent)
Discount rate	2.80	3.50	4.40	1.60	2.30	3.00	2.80	3.50	4.40
Long-term rate of return on funded assets	5.30	5.30	5.30	4.10	4.10	4.10	4.60	4.60	4.60
Long-term rate of compensation increase	5.50	5.75	5.75	4.20	4.80	4.30	5.50	5.75	5.75

Components of net periodic benefit cost	(millions of dollars)
Service cost	919	965	757	774	707	551	188	181	139
Interest cost	558	708	766	526	657	763	221	277	315
Expected return on plan assets	(722)	(703)	(568)	(1,031)	(897)	(777)	(19)	(18)	(15)
Amortization of actuarial loss/(gain)	244	310	305	420	416	306	76	95	55
Amortization of prior service cost	(23)	5	5	57	68	56	(42)	(42)	(42)
Net pension enhancement and curtailment/settlement cost	489	280	164	32	49	(98)	—	—	—
Net periodic benefit cost	1,465	1,565	1,429	778	1,000	801	424	493	452

Changes in amounts recorded in accumulated other comprehensive income:
Net actuarial loss/(gain)	(504)	(279)	609	(2,361)	446	1,268	(891)	(92)	517
Amortization of actuarial (loss)/gain	(733)	(590)	(469)	(430)	(442)	(208)	(76)	(95)	(55)
Prior service cost/(credit)	(72)	(271)	—	92	(82)	379	—	—	—
Amortization of prior service (cost)/credit	23	(5)	(5)	(55)	(68)	(56)	42	42	42
Foreign exchange rate changes	—	—	—	(255)	236	19	—	11	—
Total recorded in other comprehensive income	(1,286)	(1,145)	135	(3,009)	90	1,402	(925)	(134)	504
Total recorded in net periodic benefit cost and other comprehensive income, before tax	179	420	1,564	(2,231)	1,090	2,203	(501)	359	956

Costs for defined contribution plans were $177 million, $358 million and $422 million in 2021, 2020 and 2019, respectively.

A summary of the change in accumulated other comprehensive income is shown in the table below:


	Total Pension and Other Postretirement Benefits
	2021	2020	2019
	(millions of dollars)
(Charge)/credit to other comprehensive income, before tax
U.S. pension	1,286	1,145	(135)
Non-U.S. pension	3,009	(90)	(1,402)
Other postretirement benefits	925	134	(504)
Total (charge)/credit to other comprehensive income, before tax	5,220	1,189	(2,041)
(Charge)/credit to income tax (see Note 4)	(1,287)	(153)	550
(Charge)/credit to investment in equity companies	110	(110)	(19)
(Charge)/credit to other comprehensive income including noncontrolling interests, after tax	4,043	926	(1,510)
Charge/(credit) to equity of noncontrolling interests	(217)	30	146
(Charge)/credit to other comprehensive income attributable to ExxonMobil	3,826	956	(1,364)

The Corporation’s investment strategy for benefit plan assets reflects a long-term view, a careful assessment of the risks inherent in plan assets and liabilities and broad diversification to reduce the risk of the portfolio. The benefit plan assets are primarily invested in passive global equity and local currency fixed income index funds to diversify risk while minimizing costs. The equity funds hold ExxonMobil stock only to the extent necessary to replicate the relevant equity index. The fixed income funds are largely invested in investment grade corporate and government debt securities with interest rate sensitivity designed to approximate the interest rate sensitivity of plan liabilities.

Target asset allocations for benefit plans are reviewed periodically and set based on considerations such as risk, diversification, liquidity and funding level. The target asset allocations for the major benefit plans range from 10 to 30 percent in equity securities and the remainder in fixed income securities. The equity for the U.S. and certain non-U.S. plans include allocations to private equity partnerships that primarily focus on early-stage venture capital of less than 5 percent.

The fair value measurement levels are accounting terms that refer to different methods of valuing assets. The terms do not represent the relative risk or credit quality of an investment.

The 2021 fair value of the benefit plan assets, including the level within the fair value hierarchy, is shown in the tables below:


	U.S. Pension						Non-U.S. Pension
	Fair Value Measurement at December 31, 2021, Using:						Fair Value Measurement at December 31, 2021, Using:
	Level 1	Level 2		Level 3	Net Asset Value	Total	Level 1		Level 2		Level 3	Net Asset Value	Total
	(millions of dollars)
Asset category:
Equity securities
U.S.	—	—		—	1,956	1,956	—		—		—	3,416	3,416
Non-U.S.	—	—		—	1,290	1,290	76	(1)	—		—	2,424	2,500
Private equity	—	—		—	661	661	—		—		—	627	627
Debt securities
Corporate	—	5,242	(2)	—	1	5,243	—		119	(2)	—	5,831	5,950
Government	—	3,945	(2)	—	2	3,947	209	(3)	97	(2)	—	11,620	11,926
Asset-backed	—	—		—	1	1	—		25	(2)	—	191	216
Cash	—	—		—	162	162	62		53	(4)	—	108	223
Total at fair value	—	9,187		—	4,073	13,260	347		294		—	24,217	24,858
Insurance contracts at contract value						6							22
Total plan assets						13,266							24,880

(1)For non-U.S. equity securities held in separate accounts, fair value is based on observable quoted prices on active exchanges.

(2)For corporate, government and asset-backed debt securities, fair value is based on observable inputs of comparable market transactions.

(3)For government debt securities that are traded on active exchanges, fair value is based on observable quoted prices.

(4)For cash balances that are subject to withdrawal penalties or other adjustments, the fair value is treated as a Level 2 input.


	Other Postretirement
	Fair Value Measurement at December 31, 2021, Using:
	Level 1		Level 2		Level 3	Net Asset Value	Total
	(millions of dollars)
Asset category:
Equity securities
U.S.	91	(1)	—		—	—	91
Non-U.S.	45	(1)	—		—	—	45
Debt securities
Corporate	—		95	(2)	—	—	95
Government	—		206	(2)	—	—	206
Asset-backed	—		—		—	—	—
Cash	—		3		—	—	3
Total at fair value	136		304		—	—	440

(1)For equity securities held in separate accounts, fair value is based on observable quoted prices on active exchanges.

(2)For corporate, government and asset-backed debt securities, fair value is based on observable inputs of comparable market transactions.

The 2020 fair value of the benefit plan assets, including the level within the fair value hierarchy, is shown in the tables below:


	U.S. Pension						Non-U.S. Pension
	Fair Value Measurement at December 31, 2020, Using:						Fair Value Measurement at December 31, 2020, Using:
	Level 1	Level 2		Level 3	Net Asset Value	Total		Level 1		Level 2		Level 3	Net Asset Value	Total
	(millions of dollars)
Asset category:
Equity securities
U.S.	—	—		—	2,323	2,323		—		—		—	4,177	4,177
Non-U.S.	—	—		—	1,703	1,703		89	(1)	—		—	3,285	3,374
Private equity	—	—		—	548	548		—		—		—	530	530
Debt securities
Corporate	—	5,146	(2)	—	1	5,147		—		138	(2)	—	5,212	5,350
Government	—	5,261	(2)	—	2	5,263		250	(3)	116	(2)	—	11,993	12,359
Asset-backed	—	—		—	1	1		—		24	(2)	—	239	263
Cash	—	—		—	308	308		69		21	(4)	—	50	140
Total at fair value	—	10,407		—	4,886	15,293		408		299		—	25,486	26,193
Insurance contracts at contract value						7								23
Total plan assets						15,300								26,216

(1)For non-U.S. equity securities held in separate accounts, fair value is based on observable quoted prices on active exchanges.

(2)For corporate, government and asset-backed debt securities, fair value is based on observable inputs of comparable market transactions.

(3)For government debt securities that are traded on active exchanges, fair value is based on observable quoted prices.

(4)For cash balances that are subject to withdrawal penalties or other adjustments, the fair value is treated as a Level 2 input.


	Other Postretirement
	Fair Value Measurement at December 31, 2020, Using:
	Level 1		Level 2		Level 3	Net Asset Value	Total
	(millions of dollars)
Asset category:
Equity securities
U.S.	88	(1)	—		—	—	88
Non-U.S.	48	(1)	—		—	—	48
Debt securities
Corporate	—		103	(2)	—	—	103
Government	—		204	(2)	—	—	204
Asset-backed	—		—		—	—	—
Cash	—		—		—	3	3
Total at fair value	136		307		—	3	446

(1)For equity securities held in separate accounts, fair value is based on observable quoted prices on active exchanges.

(2)For corporate, government and asset-backed debt securities, fair value is based on observable inputs of comparable market transactions.

A summary of pension plans with an accumulated benefit obligation and projected benefit obligation in excess of plan assets is shown in the table below:


	Pension Benefits
	U.S.		Non-U.S.
	2021	2020	2021	2020
	(millions of dollars)
For funded pension plans with an accumulated benefit obligation
in excess of plan assets:
Accumulated benefit obligation	14,511	16,129	3,108	4,602
Fair value of plan assets	13,266	15,300	1,711	2,652

For funded pension plans with a projected benefit obligation in excess of plan assets:
Projected benefit obligation	16,836	19,456	4,840	13,836
Fair value of plan assets	13,266	15,300	2,849	10,681

For unfunded pension plans:
Projected benefit obligation	1,675	2,206	5,166	6,187
Accumulated benefit obligation	1,270	1,373	4,685	5,469

All other postretirement benefit plans are unfunded or underfunded.


	Pension Benefits		Other Postretirement Benefits
	U.S.	Non-U.S.	Gross	Medicare Subsidy Receipt
	(millions of dollars)
Contributions expected in 2022	640	405	—	—
Benefit payments expected in:
2022	1,306	1,173	423	21
2023	1,188	1,176	414	22
2024	1,179	1,205	409	23
2025	1,157	1,173	405	24
2026	1,154	1,155	396	25
2027 - 2031	5,803	6,145	1,981	132

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921

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-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Disclosures About Segments And Related Information

12 Months Ended

Dec. 31, 2021

Segment Reporting, Measurement Disclosures [Abstract]

Disclosures About Segments And Related Information

Disclosures about Segments and Related Information

The Upstream, Downstream and Chemical functions best define the operating segments of the business that are reported separately. The factors used to identify these reportable segments are based on the nature of the operations that are undertaken by each segment. The Upstream segment is organized and operates to explore for and produce crude oil and natural gas. The Downstream segment is organized and operates to manufacture and sell petroleum products. The Chemical segment is organized and operates to manufacture and sell petrochemicals. These segments are broadly understood across the petroleum and petrochemical industries.

These functions have been defined as the operating segments of the Corporation because they are the segments (1) that engage in business activities from which revenues are recognized and expenses are incurred; (2) whose operating results are regularly reviewed by the Corporation’s chief operating decision maker to make decisions about resources to be allocated to the segment and to assess its performance; and (3) for which discrete financial information is available.

Earnings after income tax include transfers at estimated market prices.

In Corporate and Financing, interest revenue relates to interest earned on cash deposits and marketable securities. Interest expense includes non-debt-related interest expense of $103 million in 2021, $148 million in 2020 and $105 million in 2019.


	Upstream		Downstream		Chemical		Corporate and	Corporate
	U.S.	Non-U.S.	U.S.	Non-U.S.	U.S.	Non-U.S.	Financing	Total
	(millions of dollars)
As of December 31, 2021
Earnings (loss) after income tax	3,663	12,112	1,314	791	4,502	3,294	(2,636)	23,040
Earnings of equity companies included above	288	5,535	122	74	(139)	1,131	(354)	6,657
Sales and other operating revenue	8,883	12,914	80,044	137,963	15,309	21,549	30	276,692
Intersegment revenue	16,692	33,405	21,622	27,065	9,639	6,047	227	—
Depreciation and depletion expense	6,831	9,918	724	1,031	578	650	875	20,607
Interest revenue	—	—	—	—	—	—	33	33
Interest expense	58	36	1	7	—	1	844	947
Income tax expense (benefit)	1,116	4,871	379	160	1,476	688	(1,054)	7,636
Additions to property, plant and equipment	3,308	5,308	997	983	548	739	658	12,541
Investments in equity companies	4,999	18,544	352	888	3,020	3,759	(337)	31,225
Total assets	67,294	141,978	27,436	39,630	19,069	20,653	22,863	338,923

As of December 31, 2020
Earnings (loss) after income tax	(19,385)	(645)	(852)	(225)	1,277	686	(3,296)	(22,440)
Effect of asset impairments - noncash	(17,138)	(2,287)	(15)	(609)	(100)	(69)	(35)	(20,253)
Earnings of equity companies included above	(559)	2,101	134	(190)	(21)	651	(384)	1,732
Sales and other operating revenue	5,876	8,673	48,256	92,640	8,529	14,562	38	178,574
Intersegment revenue	8,508	19,642	12,258	15,162	6,099	3,881	221	—
Depreciation and depletion expense	28,627	12,723	716	1,672	685	694	892	46,009
Interest revenue	—	—	—	—	—	—	49	49
Interest expense	52	93	1	21	—	—	991	1,158
Income tax expense (benefit)	(5,958)	742	(324)	393	440	272	(1,197)	(5,632)
Additions to property, plant and equipment	5,726	4,418	2,983	1,731	1,221	592	671	17,342
Investments in equity companies	4,792	18,135	352	879	2,543	3,514	(443)	29,772
Total assets	71,287	144,730	23,754	34,848	17,839	20,220	20,072	332,750

As of December 31, 2019
Earnings (loss) after income tax	536	13,906	1,717	606	206	386	(3,017)	14,340
Earnings of equity companies included above	282	4,534	196	19	(4)	818	(404)	5,441
Sales and other operating revenue	9,364	13,779	70,523	134,460	9,723	17,693	41	255,583
Intersegment revenue	10,893	30,864	22,416	24,775	7,864	5,905	224	—
Depreciation and depletion expense	6,162	9,305	674	832	555	621	849	18,998
Interest revenue	—	—	—	—	—	—	84	84
Interest expense	54	34	1	9	—	1	731	830
Income tax expense (benefit)	(151)	5,509	465	361	58	305	(1,265)	5,282
Additions to property, plant and equipment	10,404	7,347	2,685	1,777	1,344	589	758	24,904
Investments in equity companies	5,313	17,736	319	1,062	1,835	3,335	(309)	29,291
Total assets	95,750	151,181	23,442	37,133	16,544	20,376	18,171	362,597

Geographic


Sales and other operating revenue	2021	2020	2019
	(millions of dollars)
United States	104,236	62,663	89,612
Non-U.S.	172,456	115,911	165,971
Total	276,692	178,574	255,583

Significant non-U.S. revenue sources include: (1)
Canada	22,166	13,093	19,735
Singapore	15,031	9,442	12,128
United Kingdom	14,759	11,055	17,479
France	13,236	8,676	12,740
Italy	10,056	7,091	10,459
Belgium	9,153	6,231	11,644
Australia	7,646	5,839	7,941

(1)Revenue is determined by primary country of operations. Excludes certain sales and other operating revenues in Non-U.S. operations where attribution to a specific country is not practicable.


	December 31,
Long-lived assets	2021	2020	2019
	(millions of dollars)
United States	90,412	94,732	114,372
Non-U.S.	126,140	132,821	138,646
Total	216,552	227,553	253,018

Significant non-U.S. long-lived assets include:
Canada	34,907	36,232	39,130
Australia	12,988	14,792	13,933
Singapore	11,969	12,129	11,645
Kazakhstan	8,463	8,882	9,315
Papua New Guinea	7,534	7,803	8,057
United Arab Emirates	5,392	5,381	5,262
Nigeria	5,235	6,345	7,640
Guyana	4,892	3,547	2,542
Brazil	4,337	3,281	3,338
Russia	4,055	4,616	5,135
Angola	3,207	4,405	5,784

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Income And Other Taxes

12 Months Ended

Dec. 31, 2021

Income And Other Taxes [Abstract]

Income And Other Taxes

Income and Other Taxes


	2021			2020			2019
	U.S.	Non-U.S.	Total	U.S.	Non-U.S.	Total	U.S.	Non-U.S.	Total
				(millions of dollars)
Income tax expense (benefit)
Federal and non-U.S.
Current	236	6,948	7,184	262	2,908	3,170	(121)	6,171	6,050
Deferred - net	870	(914)	(44)	(6,045)	(2,007)	(8,052)	(255)	(420)	(675)
U.S. tax on non-U.S. operations	26	—	26	13	—	13	89	—	89
Total federal and non-U.S.	1,132	6,034	7,166	(5,770)	901	(4,869)	(287)	5,751	5,464
State	470	—	470	(763)	—	(763)	(182)	—	(182)
Total income tax expense (benefit)	1,602	6,034	7,636	(6,533)	901	(5,632)	(469)	5,751	5,282
All other taxes and duties
Other taxes and duties	3,731	26,508	30,239	3,108	23,014	26,122	3,566	26,959	30,525
Included in production and manufacturing expenses	1,589	674	2,263	1,148	663	1,811	1,385	811	2,196
Included in SG&A expenses	170	283	453	164	328	492	160	305	465
Total other taxes and duties	5,490	27,465	32,955	4,420	24,005	28,425	5,111	28,075	33,186
Total	7,092	33,499	40,591	(2,113)	24,906	22,793	4,642	33,826	38,468

The above provisions for deferred income taxes include net benefits of $53 million in 2021, $25 million in 2020, and $740 million in 2019 related to changes in tax laws and rates, and a benefit of $6.3 billion in 2020 related to asset impairments.

The reconciliation between income tax expense (credit) and a theoretical U.S. tax computed by applying a rate of 21 percent for 2021, 2020 and 2019 is as follows:


	2021		2020		2019
	(millions of dollars)
Income (loss) before income taxes
United States	9,478		(27,704)		(53)
Non-U.S.	21,756		(1,179)		20,109
Total	31,234		(28,883)		20,056
Theoretical tax	6,559		(6,065)		4,212
Effect of equity method of accounting	(1,398)		(364)		(1,143)
Non-U.S. taxes in excess of/(less than) theoretical U.S. tax (1)(2)	2,809		1,606		2,573
State taxes, net of federal tax benefit (1)	371		(603)		(144)

Other	(705)		(206)		(216)
Total income tax expense (credit)	7,636		(5,632)		5,282

Effective tax rate calculation
Income tax expense (credit)	7,636		(5,632)		5,282
ExxonMobil share of equity company income taxes	2,756		861		2,490
Total income tax expense (credit)	10,392		(4,771)		7,772
Net income (loss) including noncontrolling interests	23,598		(23,251)		14,774
Total income (loss) before taxes	33,990		(28,022)		22,546
Effective income tax rate	31	%	17	%	34	%

(1)2020 includes the impact of an increase in valuation allowance of $647 million in non-U.S. and $115 million in U.S. state jurisdictions.

(2)2019 includes taxes less than the theoretical U.S. tax of $773 million from Norway operations and the sale of upstream assets, $657 million from a tax rate change in Alberta, Canada, and $268 million from an adjustment to a prior year tax position.

Deferred income taxes reflect the impact of temporary differences between the amount of assets and liabilities recognized for financial reporting purposes and such amounts recognized for tax purposes.

Deferred tax liabilities/(assets) are comprised of the following at December 31:


Tax effects of temporary differences for:	2021	2020
	(millions of dollars)
Property, plant and equipment	27,888	28,778
Other liabilities	6,353	6,427
Total deferred tax liabilities	34,241	35,205

Pension and other postretirement benefits	(3,687)	(4,703)
Asset retirement obligations	(2,865)	(3,150)
Tax loss carryforwards	(6,914)	(8,982)
Other assets	(7,694)	(7,095)
Total deferred tax assets	(21,160)	(23,930)

Asset valuation allowances	2,634	2,731
Net deferred tax liabilities	15,715	14,006

In 2021, asset valuation allowances of $2,634 million decreased by $97 million and included net provisions of $41 million and foreign currency effects of $137 million.


Balance sheet classification	2021	2020
	(millions of dollars)
Other assets, including intangibles, net	(4,450)	(4,159)
Deferred income tax liabilities	20,165	18,165
Net deferred tax liabilities	15,715	14,006

The Corporation’s undistributed earnings from subsidiary companies outside the United States include amounts that have been retained to fund prior and future capital project expenditures. Deferred income taxes have not been recorded for potential future tax obligations, such as foreign withholding tax and state tax, as these undistributed earnings are expected to be indefinitely reinvested for the foreseeable future. As of December 31, 2021, it is not practicable to estimate the unrecognized deferred tax liability. However, unrecognized deferred taxes on remittance of these funds are not expected to be material.

Unrecognized Tax Benefits. The Corporation is subject to income taxation in many jurisdictions around the world. The benefits of uncertain tax positions that the Corporation has taken or expects to take in its income tax returns are recognized in the financial statements if management concludes that it is more likely than not that the position will be sustained with the tax authorities. For a position that is likely to be sustained, the benefit recognized in the financial statements is measured at the largest amount that is greater than 50 percent likely of being realized. Unrecognized tax benefits reflect the difference between positions taken or expected to be taken on income tax returns and the amounts recognized in the financial statements. The following table summarizes the movement in unrecognized tax benefits:


Gross unrecognized tax benefits	2021	2020	2019
	(millions of dollars)
Balance at January 1	8,764	8,844	9,174
Additions based on current year's tax positions	358	253	287
Additions for prior years' tax positions	100	218	120
Reductions for prior years' tax positions	(79)	(201)	(97)
Reductions due to lapse of the statute of limitations	(2)	(237)	(279)
Settlements with tax authorities	(11)	(113)	(538)
Foreign exchange effects/other	—	—	177
Balance at December 31	9,130	8,764	8,844

The gross unrecognized tax benefit balances are predominantly related to tax positions that would reduce the Corporation’s effective tax rate if the positions are favorably resolved. Unfavorable resolution of these tax positions generally would not increase the effective tax rate. The 2021, 2020 and 2019 changes in unrecognized tax benefits did not have a material effect on the Corporation’s net income.

Resolution of these tax positions through negotiations with the relevant tax authorities or through litigation will take many years to complete. It is difficult to predict the timing of resolution for these tax positions since the timing is not entirely within the control of the Corporation. In the United States, the Corporation has various ongoing U.S. federal income tax positions at issue with the Internal Revenue Service (IRS) for tax years beginning in 2006. The Corporation filed a refund suit for tax years 2006-2009 in U.S. federal district court (District Court) with respect to the positions at issue for those years. These positions are reflected in the unrecognized tax benefits table. On February 24, 2020, the Corporation received an adverse ruling on this suit. The IRS has asserted penalties associated with several of those positions. The Corporation has not recognized the penalties as an expense because the Corporation does not expect the penalties to be sustained under applicable law. On January 13, 2021, the District Court ruled that no penalties apply to the Corporation's positions in this suit. The Corporation and the government have appealed the District Court's rulings to the U.S. Court of Appeals for the Fifth Circuit (Fifth Circuit). Proceedings in the Fifth Circuit are continuing. Unfavorable resolution of all positions at issue with the IRS would not have a material adverse effect on the Corporation’s operations or financial condition.

It is reasonably possible that the total amount of unrecognized tax benefits could increase by up to 10 percent or decrease by up to 70 percent in the next 12 months. Such a decrease would result primarily from final resolution of the U.S. federal income tax litigation within this timeframe.

The following table summarizes the tax years that remain subject to examination by major tax jurisdiction:


Country of Operation	Open Tax Years
Abu Dhabi	2020	—	2021
Angola	2018	—	2021
Australia	2010	—	2021
Belgium	2017	—	2021
Canada	2001	—	2021
Equatorial Guinea	2007	—	2021
Indonesia	2008	—	2021
Iraq	2016	—	2021
Malaysia	2017	—	2021
Nigeria	2006	—	2021
Papua New Guinea	2008	—	2021
Russia	2019	—	2021
United Kingdom	2015	—	2021
United States	2006	—	2021

The Corporation classifies interest on income tax-related balances as interest expense or interest income and classifies tax-related penalties as operating expense.

For 2021 and 2019 the Corporation's net interest expense was $0 million on income tax reserves. For 2020, the Corporation's net interest expense was a credit of $6 million. The related interest payable balances were $61 million at both December 31, 2021 and 2020

Summary Of Accounting Policies (Policy)	12 Months Ended
Summary Of Accounting Policies (Policy)	Dec. 31, 2021
Accounting Policies [Abstract]
Principles of Consolidation and Accounting for Investments	Principles of Consolidation and Accounting for Investments The Consolidated Financial Statements include the accounts of subsidiaries the Corporation controls. They also include the Corporation’s share of the undivided interest in certain upstream assets, liabilities, revenues and expenses. Amounts representing the Corporation’s interest in entities that it does not control, but over which it exercises significant influence, are included in “Investments, advances and long-term receivables”. The Corporation’s share of the net income of these companies is included in the Consolidated Statement of Income caption “Income from equity affiliates”. Majority ownership is normally the indicator of control that is the basis on which subsidiaries are consolidated. However, certain factors may indicate that a majority-owned investment is not controlled and therefore should be accounted for using the equity method of accounting. These factors occur where the minority shareholders are granted by law or by contract substantive participating rights. These include the right to approve operating policies, expense budgets, financing and investment plans, and management compensation and succession plans. Investments in equity companies are assessed for possible impairment when events or changes in circumstances indicate that the carrying value of an investment may not be recoverable. Examples of key indicators include a history of operating losses, negative earnings and cash flow outlook, significant downward revisions to oil and gas reserves, and the financial condition and prospects for the investee’s business segment or geographic region. If the decline in value of the investment is other than temporary, the carrying value of the investment is written down to fair value. In the absence of market prices for the investment, discounted cash flows are used to assess fair value. Investments in equity securities other than consolidated subsidiaries and equity method investments are measured at fair value with changes in fair value recognized in net income. The Corporation uses the modified approach for equity securities that do not have a readily determinable fair value. This modified approach measures investments at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions in a similar investment of the same issuer. The Corporation’s share of the cumulative foreign exchange translation adjustment for equity method investments is reported in “Accumulated other comprehensive income”.
Revenue Recognition	Revenue Recognition The Corporation generally sells crude oil, natural gas and petroleum and chemical products under short-term agreements at prevailing market prices. In some cases (e.g., natural gas), products may be sold under long-term agreements, with periodic price adjustments to reflect market conditions. Revenue is recognized at the amount the Corporation expects to receive when the customer has taken control, which is typically when title transfers and the customer has assumed the risks and rewards of ownership. The prices of certain sales are based on price indices that are sometimes not available until the next period. In such cases, estimated realizations are accrued when the sale is recognized, and are finalized when the price is available. Such adjustments to revenue from performance obligations satisfied in previous periods are not significant. Payment for revenue transactions is typically due within 30 days. Future volume delivery obligations that are unsatisfied at the end of the period are expected to be fulfilled through ordinary production or purchases. These performance obligations are based on market prices at the time of the transaction and are fully constrained due to market price volatility. Purchases and sales of inventory with the same counterparty that are entered into in contemplation of one another are combined and recorded as exchanges measured at the book value of the item sold. “Sales and other operating revenue” and “Notes and accounts receivable” primarily arise from contracts with customers. Long-term receivables are primarily from non-customers. Contract assets are mainly from marketing assistance programs and are not significant. Contract liabilities are mainly customer prepayments and accruals of expected volume discounts and are not significant.
Income and Other Taxes	Income and Other Taxes The Corporation excludes from the Consolidated Statement of Income certain sales and value-added taxes imposed on and concurrent with revenue-producing transactions with customers and collected on behalf of governmental authorities. Similar taxes, for which the Corporation is not considered to be an agent for the government, are reported on a gross basis (included in both “Sales and other operating revenue” and “Other taxes and duties”). The Corporation accounts for U.S. tax on global intangible low-taxed income as an income tax expense in the period in which it is incurred.
Derivative Instruments	Derivative Instruments The Corporation may use derivative instruments for trading purposes and to offset exposures associated with commodity prices, foreign currency exchange rates and interest rates that arise from existing assets, liabilities, firm commitments and forecasted transactions. All derivative instruments, except those designated as normal purchase and normal sale, are recorded at fair value. Derivative assets and liabilities with the same counterparty are netted if the right of offset exists and certain other criteria are met. Collateral payables or receivables are netted against derivative assets and derivative liabilities, respectively. Recognition and classification of the gain or loss that results from adjusting a derivative to fair value depends on the purpose for the derivative. All gains and losses from derivative instruments for which the Corporation does not apply hedge accounting are immediately recognized in earnings. The Corporation may designate derivatives as fair value or cash flow hedges. For fair value hedges, the gain or loss from derivative instruments and the offsetting gain or loss from the hedged item are recognized in earnings. For cash flow hedges, the gain or loss from the derivative instrument is initially reported as a component of other comprehensive income and subsequently reclassified into earnings in the period that the forecasted transaction affects earnings.
Fair Value	Fair Value Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Hierarchy levels 1, 2 and 3 are terms for the priority of inputs to valuation techniques used to measure fair value. Hierarchy level 1 inputs are quoted prices in active markets for identical assets or liabilities. Hierarchy level 2 inputs are inputs other than quoted prices included within level 1 that are directly or indirectly observable for the asset or liability. Hierarchy level 3 inputs are inputs that are not observable in the market.
Inventories	Inventories Crude oil, products and merchandise inventories are carried at the lower of current market value or cost (generally determined under the last-in, first-out method – LIFO). Inventory costs include expenditures and other charges (including depreciation) directly and indirectly incurred in bringing the inventory to its existing condition and location. Selling expenses and general and administrative expenses are reported as period costs and excluded from inventory cost. Inventories of materials and supplies are valued at cost or less.
Property, Plant And Equipment	Property, Plant and Equipment Cost Basis. The Corporation uses the “successful efforts” method to account for its exploration and production activities. Under this method, costs are accumulated on a field-by-field basis. Costs incurred to purchase, lease, or otherwise acquire a property (whether unproved or proved) are capitalized when incurred. Exploratory well costs are carried as an asset when the well has found a sufficient quantity of reserves to justify its completion as a producing well and where the Corporation is making sufficient progress assessing the reserves and the economic and operating viability of the project. Exploratory well costs not meeting these criteria are charged to expense. Other exploratory expenditures, including geophysical costs and annual lease rentals, are expensed as incurred. Development costs, including costs of productive wells and development dry holes, are capitalized. Depreciation, Depletion and Amortization. Depreciation, depletion and amortization are primarily determined under either the unit-of-production method or the straight-line method, which is based on estimated asset service life taking obsolescence into consideration. Acquisition costs of proved properties are amortized using a unit-of-production method, computed on the basis of total proved oil and natural gas reserve volumes. Capitalized exploratory drilling and development costs associated with productive depletable extractive properties are amortized using the unit-of-production rates based on the amount of proved developed reserves of oil and gas that are estimated to be recoverable from existing facilities using current operating methods. Under the unit-of-production method, oil and natural gas volumes are considered produced once they have been measured through meters at custody transfer or sales transaction points at the outlet valve on the lease or field storage tank. In the event that the unit-of-production method does not result in an equitable allocation of cost over the economic life of an upstream asset, an alternative method is used. The straight-line method is used in limited situations where the expected life of the asset does not reasonably correlate with that of the underlying reserves. For example, certain assets used in the production of oil and natural gas have a shorter life than the reserves, and as such, the Corporation uses straight-line depreciation to ensure the asset is fully depreciated by the end of its useful life. To the extent that proved reserves for a property are substantially de-booked and that property continues to produce such that the resulting depreciation charge does not result in an equitable allocation of cost over the expected life, assets will be depreciated using a unit-of-production method based on reserves determined at the most recent SEC price which results in a more meaningful quantity of proved reserves, appropriately adjusted for production and technical changes. Investments in refinery, chemical process, and lubes basestock manufacturing equipment are generally depreciated on a straight-line basis over a 25-year life. Service station buildings and fixed improvements are generally depreciated over a 20-year life. Maintenance and repairs, including planned major maintenance, are expensed as incurred. Major renewals and improvements are capitalized and the assets replaced are retired. Impairment Assessment. The Corporation tests assets or groups of assets for recoverability on an ongoing basis whenever events or changes in circumstances indicate that the carrying amounts may not be recoverable. Among the events or changes in circumstances which could indicate that the carrying value of an asset or asset group may not be recoverable are the following: •a significant decrease in the market price of a long-lived asset; •a significant adverse change in the extent or manner in which an asset is being used or in its physical condition including a significant decrease in current and projected reserve volumes; •a significant adverse change in legal factors or in the business climate that could affect the value, including an adverse action or assessment by a regulator; •an accumulation of project costs significantly in excess of the amount originally expected; •a current-period operating loss combined with a history and forecast of operating or cash flow losses; and •a current expectation that, more likely than not, a long-lived asset will be sold or otherwise disposed of significantly before the end of its previously estimated useful life. The Corporation has a robust process to monitor for indicators of potential impairment across its asset groups throughout the year. This process is aligned with the requirements of ASC 360 and ASC 932, and relies in part on the Corporation’s planning and budgeting cycle. Asset valuation analysis, profitability reviews and other periodic control processes assist the Corporation in assessing whether events or changes in circumstances indicate the carrying amounts of any of its assets may not be recoverable. Because the lifespans of the vast majority of the Corporation’s major assets are measured in decades, the future cash flows of these assets are predominantly based on long-term oil and natural gas commodity prices, industry margins, and development and production costs. Significant reductions in the Corporation’s view of oil or natural gas commodity prices or margin ranges, especially the longer-term prices and margins, and changes in the development plans, including decisions to defer, reduce, or eliminate planned capital spending, can be an indicator of potential impairment. Other events or changes in circumstances, can be indicators of potential impairment as well. In general, the Corporation does not view temporarily low prices or margins as an indication of impairment. Management believes that prices over the long term must be sufficient to generate investments in energy supply to meet global demand. Although prices will occasionally drop significantly, industry prices over the long term will continue to be driven by market supply and demand fundamentals. On the supply side, industry production from mature fields is declining. This is being offset by investments to generate production from new discoveries, field developments and technology, and efficiency advancements. OPEC investment activities and production policies also have an impact on world oil supplies. The demand side is largely a function of general economic activities, alternative energy sources and levels of prosperity. During the lifespan of its major assets, the Corporation expects that oil and gas prices and industry margins will experience significant volatility, and consequently these assets will experience periods of higher earnings and periods of lower earnings, or even losses. In assessing whether events or changes in circumstances indicate the carrying value of an asset may not be recoverable, the Corporation considers recent periods of operating losses in the context of its longer-term view of prices and margins. In the Upstream, the standardized measure of discounted cash flows included in the Supplemental Information on Oil and Gas Exploration and Production Activities is required to use prices based on the average of first-of-month prices in the year. These prices represent discrete points in time and could be higher or lower than the Corporation’s price assumptions which are used for impairment assessments. The Corporation believes the standardized measure does not provide a reliable estimate of the expected future cash flows to be obtained from the development and production of its oil and gas properties or of the value of its oil and gas reserves and therefore does not consider it relevant in determining whether events or changes in circumstances indicate the need for an impairment assessment. Energy Outlook and Cash Flow Assessment. The annual planning and budgeting process, known as the Corporate Plan, is the mechanism by which resources (capital, operating expenses, and people) are allocated across the Corporation. The foundation for the assumptions supporting the Corporate Plan is the Energy Outlook, which contains the Corporation’s demand and supply projections based on its assessment of current trends in technology, government policies, consumer preferences, geopolitics, and economic development. Reflective of the existing global policy environment, the Energy Outlook does not project the degree of required future policy and technology advancement and deployment for the world, or the Corporation, to meet net-zero by 2050. As future policies and technology advancements emerge, they will be incorporated into the Energy Outlook, and the Corporation’s business plans will be updated accordingly. If events or changes in circumstances indicate that the carrying value of an asset may not be recoverable, the Corporation estimates the future undiscounted cash flows of the affected properties to judge the recoverability of carrying amounts. In performing this assessment, assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of the cash flows of other groups of assets. Cash flows used in recoverability assessments are based on assumptions which are developed in the Corporate Plan, which is reviewed and approved by the Board of Directors, and are consistent with the criteria management uses to evaluate investment opportunities. These evaluations make use of the Corporation’s assumptions of future capital allocations, crude oil and natural gas commodity prices including price differentials, refining and chemical margins, volumes, development and operating costs including greenhouse gas emission prices, and foreign currency exchange rates. Volumes are based on projected field and facility production profiles, throughput, or sales. Management’s estimate of upstream production volumes used for projected cash flows makes use of proved reserve quantities and may include risk-adjusted unproved reserve quantities. The greenhouse gas emission prices reflect existing or anticipated policy actions that countries or localities may take in support of Paris Accord pledges. Cash flow estimates for impairment testing exclude the effects of derivative instruments. Fair value of Impaired Assets. An asset group is impaired if its estimated undiscounted cash flows are less than the asset group's carrying value. Impairments are measured by the amount by which the carrying value exceeds fair value. The assessment of fair value is based upon the views of a likely market participant. The principal parameters used to establish fair value include estimates of acreage values and flowing production metrics from comparable market transactions, market-based estimates of historical cash flow multiples, and discounted cash flows. Inputs and assumptions used in discounted cash flow models include estimates of future production volumes, throughput and product sales volumes, commodity prices which are consistent with the average of third-party industry experts and government agencies, refining and chemical margins, drilling and development costs, operating costs and discount rates which are reflective of the characteristics of the asset group. Other Impairments Related to Property, Plant and Equipment. Unproved properties are assessed periodically to determine whether they have been impaired. Significant unproved properties are assessed for impairment individually, and valuation allowances against the capitalized costs are recorded based on the Corporation's future development plans, the estimated economic chance of success and the length of time that the Corporation expects to hold the properties. Properties that are not individually significant are aggregated by groups and amortized based on development risk and average holding period. Long-lived assets that are held for sale are evaluated for possible impairment by comparing the carrying value of the asset with its fair value less the cost to sell. If the net book value exceeds the fair value less cost to sell, the assets are considered impaired and adjusted to the lower value. Gains on sales of proved and unproved properties are only recognized when there is neither uncertainty about the recovery of costs applicable to any interest retained nor any substantial obligation for future performance by the Corporation. Interest costs incurred to finance expenditures during the construction phase of multiyear projects are capitalized as part of the historical cost of acquiring the constructed assets. The project construction phase commences with the development of the detailed engineering design and ends when the constructed assets are ready for their intended use. Capitalized interest costs are included in property, plant and equipment and are depreciated over the service life of the related assets.
Environmental Liabilities	Environmental Liabilities Liabilities for environmental costs are recorded when it is probable that obligations have been incurred and the amounts can be reasonably estimated. These liabilities are not reduced by possible recoveries from third parties, and projected cash expenditures are not discounted.
Foreign Currency Translation	Foreign Currency Translation The Corporation selects the functional reporting currency for its international subsidiaries based on the currency of the primary economic environment in which each subsidiary operates. Downstream and Chemical operations primarily use the local currency. However, the U.S. dollar is used in countries with a history of high inflation (primarily in Latin America) and Singapore, which predominantly sells into the U.S. dollar export market. Upstream operations which are relatively self-contained and integrated within a particular country, such as in Canada and Europe, use the local currency. Some Upstream operations, primarily in Asia and Africa, use the U.S. dollar because they predominantly sell crude and natural gas production into U.S. dollar-denominated markets. For all operations, gains or losses from remeasuring foreign currency transactions into the functional currency are included in income.
Asset Retirement Obligations	The Corporation incurs retirement obligations for certain assets. The fair values of these obligations are recorded as liabilities on a discounted basis, which is typically at the time the assets are installed. In the estimation of fair value, the Corporation uses assumptions and judgments regarding such factors as the existence of a legal obligation for an asset retirement obligation, technical assessments of the assets, estimated amounts and timing of settlements, discount rates, and inflation rates. Asset retirement obligations incurred in the current period were Level 3 fair value measurements. The costs associated with these liabilities are capitalized as part of the related assets and depreciated as the reserves are produced. Over time, the liabilities are accreted for the change in their present value.
Oil and Gas Properties	The Corporation continues capitalization of exploratory well costs when the well has found a sufficient quantity of reserves to justify its completion as a producing well and the Corporation is making sufficient progress assessing the reserves and the economic and operating viability of the project.
Leases	Right of use assets and lease liabilities are established on the balance sheet for leases with an expected term greater than one year by discounting the amounts fixed in the lease agreement for the duration of the lease which is reasonably certain, considering the probability of exercising any early termination and extension options. The portion of the fixed payment related to service costs for drilling equipment, tankers and finance leases is excluded from the calculation of right of use assets and lease liabilities.In general, leases are capitalized using the incremental borrowing rate of the leasing affiliate.
Net Investment Hedge Risk Management	The Corporation may use non-derivative financial instruments, such as its foreign currency-denominated debt, as hedges of its net investments in certain foreign subsidiaries. Under this method, the change in the carrying value of the financial instruments due to foreign exchange fluctuations is reported in accumulated other comprehensive income.
Stock-Based Payments	Compensation expense for these awards is based on the price of the stock at the date of grant and is recognized in income over the requisite service period. Shares for these awards are issued to employees from treasury stock. The units that are settled in cash are recorded as liabilities and their changes in fair value are recognized over the vesting period
Commitments and Contingencies	The Corporation accrues an undiscounted liability for those contingencies where the incurrence of a loss is probable and the amount can be reasonably estimated. If a range of amounts can be reasonably estimated and no amount within the range is a better estimate than any other amount, then the minimum of the range is accrued. The Corporation does not record liabilities when the likelihood that the liability has been incurred is probable but the amount cannot be reasonably estimated or when the liability is believed to be only reasonably possible or remote. For contingencies where an unfavorable outcome is reasonably possible and which are significant, the Corporation discloses the nature of the contingency and, where feasible, an estimate of the possible loss. For purposes of our contingency disclosures, “significant” includes material matters, as well as other matters, which management believes should be disclosed.
Income Tax Uncertainties	The benefits of uncertain tax positions that the Corporation has taken or expects to take in its income tax returns are recognized in the financial statements if management concludes that it is more likely than not that the position will be sustained with the tax authorities. For a position that is likely to be sustained, the benefit recognized in the financial statements is measured at the largest amount that is greater than 50 percent likely of being realized. Unrecognized tax benefits reflect the difference between positions taken or expected to be taken on income tax returns and the amounts recognized in the financial statements.

Restructuring Activities (Tables)

12 Months Ended

Dec. 31, 2021

Restructuring and Related Activities [Abstract]

Summary of Reserves and Charges



	2021	2020
	(millions of dollars)
Beginning Balance	403	—
Additions/adjustments	58	450
Payments made	(384)	(47)
Ending Balance	77	403

Miscellaneous Financial Information (Tables)

12 Months Ended

Dec. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Crude Oil, Products And Merchandise

Crude oil, products and merchandise as of year-end 2021 and 2020 consist of the following:


	Dec 31, 2021	Dec 31, 2020
	(millions of dollars)
Crude oil	4,162	5,354
Petroleum products	5,081	5,138
Chemical products	3,354	3,023
Gas/other	1,922	654
Total	14,519	14,169

Other Comprehensive Income Information (Tables)

12 Months Ended

Dec. 31, 2021

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Schedule Of Accumulated Other Comprehensive Income Information


ExxonMobil Share of Accumulated Other Comprehensive Income	Cumulative Foreign Exchange Translation Adjustment	Postretirement Benefits Reserves Adjustment	Total
	(millions of dollars)
Balance as of December 31, 2018	(13,881)	(5,683)	(19,564)
Current period change excluding amounts reclassified from accumulated other comprehensive income	1,435	(1,927)	(492)
Amounts reclassified from accumulated other comprehensive income	—	563	563
Total change in accumulated other comprehensive income	1,435	(1,364)	71
Balance as of December 31, 2019	(12,446)	(7,047)	(19,493)

Current period change excluding amounts reclassified from accumulated other comprehensive income (1)	1,818	95	1,913
Amounts reclassified from accumulated other comprehensive income	14	861	875
Total change in accumulated other comprehensive income	1,832	956	2,788
Balance as of December 31, 2020	(10,614)	(6,091)	(16,705)

Current period change excluding amounts reclassified from accumulated other comprehensive income (1)	(883)	2,938	2,055
Amounts reclassified from accumulated other comprehensive income	(2)	888	886
Total change in accumulated other comprehensive income	(885)	3,826	2,941
Balance as of December 31, 2021	(11,499)	(2,265)	(13,764)

(1)Cumulative Foreign Exchange Translation Adjustment includes net investment hedge gain/(loss) net of taxes of $329 million and $(355) million in 2021 and 2020, respectively.

Reclassification Out Of Accumulated Other Comprehensive Income


Amounts Reclassified Out of Accumulated Other Comprehensive Income - Before-tax Income/(Expense)	2021	2020	2019
	(millions of dollars)
Foreign exchange translation gain/(loss) included in net income (Statement of Income line: Other income)	2	(14)	—
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs (Statement of Income line: Non-service pension and postretirement benefit expense)	(1,229)	(1,158)	(751)

Schedule Of Income Tax (Expense)/Credit For Components Of Other Comprehensive Income


Income Tax (Expense)/Credit For Components of Other Comprehensive Income	2021	2020	2019
	(millions of dollars)
Foreign exchange translation adjustment	(114)	118	88
Postretirement benefits reserves adjustment (excluding amortization)	(983)	109	719
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs	(304)	(262)	(169)
Total	(1,401)	(35)	638

Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2021

Supplemental Cash Flow Information [Abstract]

Cash Payments For Interest And Income Taxes


	2021	2020	2019
	(millions of dollars)
Income taxes paid	5,341	2,428	7,018
Cash interest paid
Included in cash flows from operating activities	819	786	560
Capitalized, included in cash flows from investing activities	655	665	731
Total cash interest paid	1,474	1,451	1,291

Additional Working Capital Information (Tables)

12 Months Ended

Dec. 31, 2021

Additional Working Capital Information [Abstract]

Schedule Of Notes, Accounts Receivable And Payable, Loans Payable, And Accrued Liabilities


	Dec 31, 2021	Dec 31, 2020
	(millions of dollars)
Notes and accounts receivable
Trade, less reserves of $159 million and $96 million	26,883	16,339
Other, less reserves of $381 million and $378 million	5,500	4,242
Total	32,383	20,581
Notes and loans payable
Bank loans	276	222
Commercial paper	1,608	17,306
Long-term debt due within one year	2,392	2,930
Total	4,276	20,458
Accounts payable and accrued liabilities
Trade payables	26,623	17,499
Payables to equity companies	8,885	6,476
Accrued taxes other than income taxes	3,896	3,408
Other	11,362	7,838
Total	50,766	35,221

Equity Company Information (Tables)

12 Months Ended

Dec. 31, 2021

Equity Method Investment, Financial Statement, Reported Amounts [Abstract]

Schedule Of Equity Company Financial Summary


	2021		2020		2019
Equity Company Financial Summary	Total	ExxonMobil Share	Total	ExxonMobil Share	Total	ExxonMobil Share
	(millions of dollars)
Total revenues	116,972	34,995	69,954	21,282	102,365	31,240
Income before income taxes	35,142	9,278	12,743	2,830	29,424	7,927
Income taxes	11,010	2,763	4,333	870	9,725	2,500
Income from equity affiliates	24,132	6,515	8,410	1,960	19,699	5,427

Current assets	45,267	15,542	33,419	11,969	36,035	12,661
Long-term assets	150,699	41,614	150,358	41,457	143,321	40,001
Total assets	195,966	57,156	183,777	53,426	179,356	52,662
Current liabilities	28,862	8,297	18,827	5,245	24,583	6,939
Long-term liabilities	63,138	19,084	66,053	19,927	61,022	18,158
Net assets	103,966	29,775	98,897	28,254	93,751	27,565

Schedule Of The Corporation's Percentage Ownership Interest

A list of significant equity companies as of December 31, 2021, together with the Corporation’s percentage ownership interest, is detailed below:


			Percentage Ownership Interest
Upstream
Aera Energy LLC			48
Barzan Gas Company Limited			7
BEB Erdgas und Erdoel GmbH & Co. KG			50
Caspian Pipeline Consortium			8
CORAL FLNG, S.A.			25
Cross Timbers Energy, LLC			50
GasTerra B.V.			25
Golden Pass LNG Terminal LLC			30
Golden Pass Pipeline LLC			30
Marine Well Containment Company LLC			10
Mozambique Rovuma Venture, S.p.A.			36
Nederlandse Aardolie Maatschappij B.V.			50
Papua New Guinea Liquefied Natural Gas Global Company LDC			33
Permian Highway Pipeline LLC			20
Qatar Liquefied Gas Company Limited			10
Qatar Liquefied Gas Company Limited (2)			24
Ras Laffan Liquefied Natural Gas Company Limited			25
Ras Laffan Liquefied Natural Gas Company Limited (II)			31
Ras Laffan Liquefied Natural Gas Company Limited (3)			30
South Hook LNG Terminal Company Limited			24
Tengizchevroil, LLP			25
Terminale GNL Adriatico S.r.l.			71

Downstream
Alberta Products Pipe Line Ltd.			45
Fujian Refining & Petrochemical Co. Ltd.			25
Permian Express Partners LLC			12
Saudi Aramco Mobil Refinery Company Ltd.			50

Chemical
Al-Jubail Petrochemical Company			50
Gulf Coast Growth Ventures LLC			50
Saudi Yanbu Petrochemical Co.			50

Investments, Advances And Long-Term Receivables (Tables)

12 Months Ended

Dec. 31, 2021

Long-term Investments and Receivables, Net [Abstract]

Schedule Of Investments, Advances And Long-Term Receivables


	Dec 31, 2021	Dec 31, 2020
	(millions of dollars)
Equity method company investments and advances
Investments	31,225	29,772
Advances, net of allowances of $34 million and $31 million	8,326	8,812
Total equity method company investments and advances	39,551	38,584
Equity securities carried at fair value and other investments at adjusted cost basis	138	143
Long-term receivables and miscellaneous, net of reserves of $5,974 million and $6,115 million	5,506	4,788
Total	45,195	43,515

Property, Plant And Equipment And Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant And Equipment And Asset Retirement Obligations [Abstract]

Property, Plant And Equipment


	December 31, 2021		December 31, 2020
Property, Plant and Equipment	Cost	Net	Cost	Net
	(millions of dollars)
Upstream	375,813	156,951	386,614	167,472
Downstream	57,947	27,417	57,922	27,716
Chemical	43,288	21,793	42,868	21,924
Other	18,014	10,391	17,918	10,441
Total	495,062	216,552	505,322	227,553

Asset Retirement Obligations

The following table summarizes the activity in the liability for asset retirement obligations:


	2021	2020	2019
	(millions of dollars)
Balance at January 1	11,247	11,280	12,103
Accretion expense and other provisions	548	584	649
Reduction due to property sales	(1,002)	(77)	(1,085)
Payments made	(444)	(669)	(827)
Liabilities incurred	42	26	89
Foreign currency translation	(147)	239	84
Revisions	386	(136)	267
Balance at December 31	10,630	11,247	11,280

Accounting For Suspended Exploratory Well Costs (Tables)

12 Months Ended

Dec. 31, 2021

Capitalized Exploratory Well Costs [Abstract]

Change In Capitalized Suspended Exploratory Well Costs


Change in capitalized suspended exploratory well costs:	2021	2020	2019
	(millions of dollars)
Balance beginning at January 1	4,382	4,613	4,160
Additions pending the determination of proved reserves	420	208	532
Charged to expense	(325)	(318)	(46)
Reclassifications to wells, facilities and equipment based on the determination of proved reserves	(328)	(174)	(37)
Divestments/Other	(29)	53	4
Ending balance at December 31	4,120	4,382	4,613
Ending balance attributed to equity companies included above	306	306	306

Period End Capitalized Suspended Exploratory Well Costs


Period end capitalized suspended exploratory well costs:	2021	2020	2019
	(millions of dollars)
Capitalized for a period of one year or less	420	208	532
Capitalized for a period of between one and five years	1,642	1,828	2,206
Capitalized for a period of between five and ten years	1,657	1,932	1,411
Capitalized for a period of greater than ten years	401	414	464
Capitalized for a period greater than one year - subtotal	3,700	4,174	4,081
Total	4,120	4,382	4,613

Number Of Projects With Suspended Exploratory Well Costs


	2021	2020	2019
Number of projects that only have exploratory well costs capitalized for a period of one year or less	4	3	4
Number of projects that have exploratory well costs capitalized for a period greater than one year	30	34	46
Total	34	37	50

Additional Detail For Projects With Completed Exploratory Activity Progressing Toward Development

The table below provides additional detail for those 17 projects, which total $2,874 million.


Country/Project	Dec. 31, 2021	Years Wells Drilled / Acquired			Comment
(millions of dollars)
Argentina
–La Invernada	72	2014			Evaluating development plan to tie into planned infrastructure.
Australia
–Gorgon Area Ullage	327	1994	-	2015	Evaluating development plans to tie into existing LNG facilities.
Canada
–Hibernia North	26	2019			Awaiting capacity in existing/planned infrastructure.
Guyana
–Yellowtail	138	2019	-	2020	Continuing discussions with the government regarding development plan.
Kazakhstan
–Kairan	53	2004	-	2007	Evaluating commercialization and field development alternatives, while continuing discussions with the government regarding the development plan.
Mozambique
–Rovuma LNG Future Non-Straddling Train	120	2017			Evaluating/progressing development plan to tie into planned LNG facilities.
–Rovuma LNG Phase 1	150	2017			Progressing development plan to tie into planned LNG facilities.
–Rovuma LNG Unitized Trains	35	2017			Evaluating/progressing development plan to tie into planned LNG facilities.
Nigeria
–Bonga North	34	2004	-	2009	Evaluating/progressing development plan for tieback to existing/planned infrastructure.
–Bonga SW	3	2001			Evaluating/progressing development plan for tieback to existing/planned infrastructure.
–Pegi	32	2009			Awaiting capacity in existing/planned infrastructure.
Papua New Guinea
–Muruk	165	2017	-	2019	Evaluating/progressing development plans.
–Papua LNG	246	2017			Evaluating/progressing development plans.
–P'nyang	116	2012	-	2018	Evaluating/progressing development plans.
Romania
–Neptun Deep	536	2012	-	2016	Continuing discussions with the government regarding development plan.
Tanzania
–Tanzania Block 2	525	2012	-	2015	Evaluating development alternatives, while continuing discussions with the government regarding development plan.
Vietnam
–Blue Whale	296	2011	-	2015	Evaluating/progressing development plans.
Total 2021 (17 projects)	2,874

Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Lease Cost


	Operating Leases			Finance Leases
Lease Cost	2021	2020	2019	2021	2020	2019
	(millions of dollars)
Operating lease cost	1,542	1,553	1,434
Short-term and other (net of sublease rental income)	1,351	1,613	2,042
Amortization of right of use assets				133	143	121
Interest on lease liabilities				158	169	133
Total (1)	2,893	3,166	3,476	291	312	254

(1)Includes $681 million, $827 million and $1,164 million for drilling rigs and related equipment operating leases in 2021, 2020 and 2019, respectively.

Right Of Use Assets And Lease Liabilities


	Operating Leases				Finance Leases
Balance Sheet	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
	(millions of dollars)
Right of use assets
Included in Other assets, including intangibles - net	6,082		6,078
Included in Property, plant and equipment - net					2,412		2,188
Total right of use assets	6,082		6,078		2,412		2,188

Lease liability due within one year
Included in Accounts payable and accrued liabilities	1,367		1,168		4		4
Included in Notes and loans payable					111		102
Long-term lease liability
Included in Other long-term obligations	3,823		3,994
Included in Long-term debt					1,761		1,680
Included in Long-term obligations to equity companies					131		135
Total lease liability (2)	5,190		5,162		2,007		1,921

Weighted average remaining lease term (years)	10		11		20		20
Weighted average discount rate (percent)	2.3	%	2.9	%	7.7	%	8.9	%

(2)Includes $935 million and $832 million for drilling rigs and related equipment operating leases in 2021 and 2020, respectively.

Maturity Analysis of Operating Leases


	Operating Leases	Finance Leases
Maturity Analysis of Lease Liabilities	December 31, 2021
	(millions of dollars)
2022	1,456	262
2023	1,141	256
2024	574	253
2025	437	246
2026	384	382
2027 and beyond	1,978	2,111
Total lease payments	5,970	3,510
Discount to present value	(780)	(1,503)
Total lease liability	5,190	2,007

Maturity Analysis of Finance Leases


	Operating Leases	Finance Leases
Maturity Analysis of Lease Liabilities	December 31, 2021
	(millions of dollars)
2022	1,456	262
2023	1,141	256
2024	574	253
2025	437	246
2026	384	382
2027 and beyond	1,978	2,111
Total lease payments	5,970	3,510
Discount to present value	(780)	(1,503)
Total lease liability	5,190	2,007

Operating And Finance Leases Other Information


	Operating Leases			Finance Leases
Other Information	2021	2020	2019	2021	2020	2019
	(millions of dollars)
Cash paid for amounts included in the measurement of lease liabilities
Cash flows from operating activities	1,135	1,159	1,116	20	31	54
Cash flows from investing activities	291	283	258
Cash flows from financing activities				110	94	177

Noncash right of use assets recorded for lease liabilities
For January 1 adoption of ASC 842			3,263
In exchange for lease liabilities during the period	1,405	735	3,663	200	108	422

Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Earnings Per Share Computation


Earnings per common share	2021	2020	2019
Net income (loss) attributable to ExxonMobil (millions of dollars)	23,040	(22,440)	14,340

Weighted average number of common shares outstanding (millions of shares)	4,275	4,271	4,270

Earnings (loss) per common share (dollars) (1)	5.39	(5.25)	3.36

Dividends paid per common share (dollars)	3.49	3.48	3.43

(1)The earnings (loss) per common share and earnings (loss) per common share - assuming dilution are the same in each period shown.

Financial Instruments and Derivatives (Tables)

12 Months Ended

Dec. 31, 2021

Financial Instruments And Derivatives [Abstract]

Financial Instruments

The estimated fair value of financial instruments at December 31, 2021 and December 31, 2020, and the related hierarchy level for the fair value measurement is as follows:


	December 31, 2021
	(millions of dollars)
	Fair Value
	Level 1	Level 2	Level 3	Total Gross Assets & Liabilities	Effect of Counterparty Netting	Effect of Collateral Netting	Difference in Carrying Value and Fair Value	Net Carrying Value
Assets
Derivative assets (1)	1,422	1,523	—	2,945	(1,930)	(28)	—	987
Advances to/receivables from equity companies (2)(6)	—	3,076	5,373	8,449	—	—	(123)	8,326
Other long-term financial assets (3)	1,134	—	1,058	2,192	—	—	181	2,373

Liabilities
Derivative liabilities (4)	1,701	2,594	—	4,295	(1,930)	(306)	—	2,059
Long-term debt (5)	44,454	88	3	44,545	—	—	(2,878)	41,667
Long-term obligations to equity companies (6)	—	—	3,084	3,084	—	—	(227)	2,857
Other long-term financial liabilities (7)	—	—	902	902	—	—	58	960


	December 31, 2020
	(millions of dollars)
	Fair Value
	Level 1	Level 2	Level 3	Total Gross Assets & Liabilities	Effect of Counterparty Netting	Effect of Collateral Netting	Difference in Carrying Value and Fair Value	Net Carrying Value
Assets
Derivative assets (1)	1,247	194	—	1,441	(1,282)	(6)	—	153
Advances to/receivables from equity companies (2)(6)	—	3,275	5,904	9,179	—	—	(367)	8,812
Other long-term financial assets (3)	1,235	—	944	2,179	—	—	125	2,304

Liabilities
Derivative liabilities (4)	1,443	254	—	1,697	(1,282)	(202)	—	213
Long-term debt (5)	50,263	125	4	50,392	—	—	(4,890)	45,502
Long-term obligations to equity companies (6)	—	—	3,530	3,530	—	—	(277)	3,253
Other long-term financial liabilities (7)	—	—	964	964	—	—	44	1,008

(1)Included in the Balance Sheet lines: Notes and accounts receivable - net and Other assets, including intangibles - net

(2)Included in the Balance Sheet line: Investments, advances and long-term receivables

(3)Included in the Balance Sheet lines: Investments, advances and long-term receivables and Other assets, including intangibles - net

(4)Included in the Balance Sheet lines: Accounts payable and accrued liabilities and Other long-term obligations

(5)Excluding finance lease obligations

Schedule of Notional Amounts of Outstanding Derivative Positions

The net notional long/(short) position of derivative instruments at December 31, 2021 and December 31, 2020, was as follows:


	December 31,	December 31,
	2021	2020
	(millions)
Crude oil (barrels)	82	40
Petroleum products (barrels)	(48)	(46)
Natural gas (MMBTUs)	(115)	(500)

Derivative Instruments - Before-Tax Realized and Unrealized Gains / (Losses)

Realized and unrealized gains/(losses) on derivative instruments that were recognized in the Consolidated Statement of Income are included in the following lines on a before-tax basis:


	2021	2020	2019
	(millions of dollars)
Sales and other operating revenue	(3,818)	404	(412)
Crude oil and product purchases	48	(407)	179
Total	(3,770)	(3)	(233)

Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2021

Long-term Debt, Unclassified [Abstract]

Summarized Long-Term Debt

Summarized long-term debt at year-end 2021 and 2020 are shown in the table below:


	Average Rate (1)	Dec 31, 2021	Dec 31, 2020
		(millions of dollars)
Exxon Mobil Corporation (2)
2.397% notes due 2022		—	1,150
1.902% notes due 2022		—	750
Floating-rate notes due 2022 (Issued 2015)		—	500
Floating-rate notes due 2022 (Issued 2019)		—	750
1.571% notes due 2023		2,750	2,750
2.726% notes due 2023		1,250	1,250
3.176% notes due 2024		1,000	1,000
2.019% notes due 2024		1,000	1,000
2.709% notes due 2025		1,750	1,750
2.992% notes due 2025		2,794	2,807
3.043% notes due 2026		2,500	2,500
2.275% notes due 2026		1,000	1,000
3.294% notes due 2027		1,000	1,000
2.440% notes due 2029		1,250	1,250
3.482% notes due 2030		2,000	2,000
2.610% notes due 2030		2,000	2,000
2.995% notes due 2039		750	750
4.227% notes due 2040		2,087	2,091
3.567% notes due 2045		1,000	1,000
4.114% notes due 2046		2,500	2,500
3.095% notes due 2049		1,500	1,500
4.327% notes due 2050		2,750	2,750
3.452% notes due 2051		2,750	2,750
Exxon Mobil Corporation - Euro-denominated
0.142% notes due 2024		1,698	1,841
0.524% notes due 2028		1,133	1,227
0.835% notes due 2032		1,133	1,227
1.408% notes due 2039		1,133	1,227
XTO Energy Inc. (3)
6.100% senior notes due 2036		191	192
6.750% senior notes due 2037		291	294
6.375% senior notes due 2038		226	227



Industrial revenue bonds due 2022-2051	0.028%	2,244	2,461
Other U.S. dollar obligations		64	78
Other foreign currency obligations		37	61
Finance lease obligations	7.438%	1,761	1,680
Debt issuance costs		(114)	(131)
Total long-term debt		43,428	47,182

(1)Average effective interest rate for debt and average imputed interest rate for finance leases at December 31, 2021.

(2)Includes premiums of $131 million in 2021 and $148 million in 2020.

(3)Includes premiums of $82 million in 2021 and $87 million in 2020.

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

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-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://www.xbrl.org/2003/role/exampleRef
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-Name Accounting Standards Codification
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Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 7: http://www.xbrl.org/2003/role/exampleRef
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Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21538-112644

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

+ Details

Incentive Program (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Summary Of Restricted Stock And Units Outstanding

The following tables summarize information about restricted stock and restricted stock units for the year ended December 31, 2021.


	2021
Restricted stock and units outstanding	Shares	Weighted Average Grant-Date Fair Value per Share
	(thousands)	(dollars)
Issued and outstanding at January 1	39,585	80.43
Awards issued in 2021	8,753	41.29
Vested	(9,142)	86.16
Forfeited	(274)	66.54
Issued and outstanding at December 31	38,922	70.38

Grant Value Of Restricted Stock Units


Value of restricted stock units	2021	2020	2019
Grant price (dollars)	62.76	41.15	68.77

Value at date of grant:	(millions of dollars)
Units settled in stock	461	325	559
Units settled in cash	49	32	55
Total value	510	357	614

Litigation And Other Contingencies (Tables)

12 Months Ended

Dec. 31, 2021

Loss Contingency [Abstract]

Schedule Of Guarantees


	December 31, 2021
	Equity Company Obligations (1)	Other Third-Party Obligations	Total
	(millions of dollars)
Guarantees
Debt-related	1,109	140	1,249
Other	775	6,498	7,273
Total	1,884	6,638	8,522

(1)ExxonMobil share.

Pension And Other Postretirement Benefits (Tables)

12 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

Change In Benefit Obligation Of Pension And Other Postretirement Benefits


	Pension Benefits				Other Postretirement
	U.S.		Non-U.S.		Benefits
	2021	2020	2021	2020	2021	2020
	(percent)
Weighted-average assumptions used to determine benefit obligations at December 31
Discount rate	3.00	2.80	2.20	1.60	3.10	2.80
Long-term rate of compensation increase	4.50	5.50	4.20	4.20	4.50	5.50

	(millions of dollars)
Change in benefit obligation
Benefit obligation at January 1	21,662	20,959	33,626	29,918	8,135	8,113
Service cost	919	965	774	707	188	181
Interest cost	558	708	526	657	221	277
Actuarial loss/(gain) (1)	(747)	1,287	(2,803)	2,344	(881)	(66)
Benefits paid (2) (3)	(3,810)	(1,987)	(1,550)	(1,317)	(517)	(510)
Foreign exchange rate changes	—	—	(1,162)	1,375	3	23
Amendments, divestments and other	(71)	(270)	81	(58)	116	117
Benefit obligation at December 31	18,511	21,662	29,492	33,626	7,265	8,135
Accumulated benefit obligation at December 31	15,781	17,502	27,373	30,952	—	—

(1)Actuarial loss/(gain) primarily reflects changes in discount rates, lower long-term rates of compensation and a lower health care cost trend rate.

(2)Benefit payments for funded and unfunded plans.

(3)For 2021 and 2020, other postretirement benefits paid are net of $9 million and $16 million of Medicare subsidy receipts, respectively.

Change In Plan Assets Of Pension And Other Postretirement Benefits


	Pension Benefits				Other Postretirement
	U.S.		Non-U.S.		Benefits
	2021	2020	2021	2020	2021	2020
	(millions of dollars)
Change in plan assets
Fair value at January 1	15,300	13,636	26,216	22,916	446	425
Actual return on plan assets	479	2,269	571	2,795	20	42
Foreign exchange rate changes	—	—	(605)	1,011	—	—
Company contribution	794	1,004	293	597	28	37
Benefits paid (1)	(3,307)	(1,609)	(1,167)	(992)	(54)	(58)
Other	—	—	(428)	(111)	—	—
Fair value at December 31	13,266	15,300	24,880	26,216	440	446

(1) Benefit payments for funded plans.

Summary Of Assets In Excess Of/(Less Than) Benefit Obligation


	Pension Benefits
	U.S.		Non-U.S.
	2021	2020	2021	2020
	(millions of dollars)
Assets in excess of/(less than) benefit obligation
Balance at December 31
Funded plans	(3,570)	(4,156)	554	(1,223)
Unfunded plans	(1,675)	(2,206)	(5,166)	(6,187)
Total	(5,245)	(6,362)	(4,612)	(7,410)

Amounts Recorded In Balance Sheet And Other Comprehensive Income


	Pension Benefits				Other Postretirement Benefits
	U.S.		Non-U.S.
	2021	2020	2021	2020	2021	2020
	(millions of dollars)
Assets in excess of/(less than) benefit obligation
Balance at December 31 (1)	(5,245)	(6,362)	(4,612)	(7,410)	(6,825)	(7,689)

Amounts recorded in the consolidated balance sheet consist of:
Other assets	—	—	2,544	1,931	—	—
Current liabilities	(206)	(377)	(267)	(273)	(323)	(327)
Postretirement benefits reserves	(5,039)	(5,985)	(6,889)	(9,068)	(6,502)	(7,362)
Total recorded	(5,245)	(6,362)	(4,612)	(7,410)	(6,825)	(7,689)

Amounts recorded in accumulated other comprehensive income consist of:
Net actuarial loss/(gain)	1,865	3,102	2,841	5,904	197	1,164
Prior service cost	(324)	(275)	262	208	(232)	(274)
Total recorded in accumulated other comprehensive income	1,541	2,827	3,103	6,112	(35)	890

(1) Fair value of assets less benefit obligation shown on the preceding page.

Schedule Of Assumptions, Components Of Benefit Cost And Amounts Recorded In Accumulated Other Comprehensive Income For Pension And Other Postretirement Benefits


	Pension Benefits						Other Postretirement Benefits
	U.S.			Non-U.S.
	2021	2020	2019	2021	2020	2019	2021	2020	2019
Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31	(percent)
Discount rate	2.80	3.50	4.40	1.60	2.30	3.00	2.80	3.50	4.40
Long-term rate of return on funded assets	5.30	5.30	5.30	4.10	4.10	4.10	4.60	4.60	4.60
Long-term rate of compensation increase	5.50	5.75	5.75	4.20	4.80	4.30	5.50	5.75	5.75

Components of net periodic benefit cost	(millions of dollars)
Service cost	919	965	757	774	707	551	188	181	139
Interest cost	558	708	766	526	657	763	221	277	315
Expected return on plan assets	(722)	(703)	(568)	(1,031)	(897)	(777)	(19)	(18)	(15)
Amortization of actuarial loss/(gain)	244	310	305	420	416	306	76	95	55
Amortization of prior service cost	(23)	5	5	57	68	56	(42)	(42)	(42)
Net pension enhancement and curtailment/settlement cost	489	280	164	32	49	(98)	—	—	—
Net periodic benefit cost	1,465	1,565	1,429	778	1,000	801	424	493	452

Changes in amounts recorded in accumulated other comprehensive income:
Net actuarial loss/(gain)	(504)	(279)	609	(2,361)	446	1,268	(891)	(92)	517
Amortization of actuarial (loss)/gain	(733)	(590)	(469)	(430)	(442)	(208)	(76)	(95)	(55)
Prior service cost/(credit)	(72)	(271)	—	92	(82)	379	—	—	—
Amortization of prior service (cost)/credit	23	(5)	(5)	(55)	(68)	(56)	42	42	42
Foreign exchange rate changes	—	—	—	(255)	236	19	—	11	—
Total recorded in other comprehensive income	(1,286)	(1,145)	135	(3,009)	90	1,402	(925)	(134)	504
Total recorded in net periodic benefit cost and other comprehensive income, before tax	179	420	1,564	(2,231)	1,090	2,203	(501)	359	956

Summary Of Change In Accumulated Other Comprehensive Income

A summary of the change in accumulated other comprehensive income is shown in the table below:


	Total Pension and Other Postretirement Benefits
	2021	2020	2019
	(millions of dollars)
(Charge)/credit to other comprehensive income, before tax
U.S. pension	1,286	1,145	(135)
Non-U.S. pension	3,009	(90)	(1,402)
Other postretirement benefits	925	134	(504)
Total (charge)/credit to other comprehensive income, before tax	5,220	1,189	(2,041)
(Charge)/credit to income tax (see Note 4)	(1,287)	(153)	550
(Charge)/credit to investment in equity companies	110	(110)	(19)
(Charge)/credit to other comprehensive income including noncontrolling interests, after tax	4,043	926	(1,510)
Charge/(credit) to equity of noncontrolling interests	(217)	30	146
(Charge)/credit to other comprehensive income attributable to ExxonMobil	3,826	956	(1,364)

Fair Value Of The Benefit Plan Assets (Pension)

The 2021 fair value of the benefit plan assets, including the level within the fair value hierarchy, is shown in the tables below:


	U.S. Pension						Non-U.S. Pension
	Fair Value Measurement at December 31, 2021, Using:						Fair Value Measurement at December 31, 2021, Using:
	Level 1	Level 2		Level 3	Net Asset Value	Total	Level 1		Level 2		Level 3	Net Asset Value	Total
	(millions of dollars)
Asset category:
Equity securities
U.S.	—	—		—	1,956	1,956	—		—		—	3,416	3,416
Non-U.S.	—	—		—	1,290	1,290	76	(1)	—		—	2,424	2,500
Private equity	—	—		—	661	661	—		—		—	627	627
Debt securities
Corporate	—	5,242	(2)	—	1	5,243	—		119	(2)	—	5,831	5,950
Government	—	3,945	(2)	—	2	3,947	209	(3)	97	(2)	—	11,620	11,926
Asset-backed	—	—		—	1	1	—		25	(2)	—	191	216
Cash	—	—		—	162	162	62		53	(4)	—	108	223
Total at fair value	—	9,187		—	4,073	13,260	347		294		—	24,217	24,858
Insurance contracts at contract value						6							22
Total plan assets						13,266							24,880

(1)For non-U.S. equity securities held in separate accounts, fair value is based on observable quoted prices on active exchanges.

(2)For corporate, government and asset-backed debt securities, fair value is based on observable inputs of comparable market transactions.

(3)For government debt securities that are traded on active exchanges, fair value is based on observable quoted prices.

(4)For cash balances that are subject to withdrawal penalties or other adjustments, the fair value is treated as a Level 2 input.

The 2020 fair value of the benefit plan assets, including the level within the fair value hierarchy, is shown in the tables below:


	U.S. Pension						Non-U.S. Pension
	Fair Value Measurement at December 31, 2020, Using:						Fair Value Measurement at December 31, 2020, Using:
	Level 1	Level 2		Level 3	Net Asset Value	Total		Level 1		Level 2		Level 3	Net Asset Value	Total
	(millions of dollars)
Asset category:
Equity securities
U.S.	—	—		—	2,323	2,323		—		—		—	4,177	4,177
Non-U.S.	—	—		—	1,703	1,703		89	(1)	—		—	3,285	3,374
Private equity	—	—		—	548	548		—		—		—	530	530
Debt securities
Corporate	—	5,146	(2)	—	1	5,147		—		138	(2)	—	5,212	5,350
Government	—	5,261	(2)	—	2	5,263		250	(3)	116	(2)	—	11,993	12,359
Asset-backed	—	—		—	1	1		—		24	(2)	—	239	263
Cash	—	—		—	308	308		69		21	(4)	—	50	140
Total at fair value	—	10,407		—	4,886	15,293		408		299		—	25,486	26,193
Insurance contracts at contract value						7								23
Total plan assets						15,300								26,216

(1)For non-U.S. equity securities held in separate accounts, fair value is based on observable quoted prices on active exchanges.

(2)For corporate, government and asset-backed debt securities, fair value is based on observable inputs of comparable market transactions.

(3)For government debt securities that are traded on active exchanges, fair value is based on observable quoted prices.

(4)For cash balances that are subject to withdrawal penalties or other adjustments, the fair value is treated as a Level 2 input.

Fair Value Of The Benefit Plan Assets (Other Postretirement)


	Other Postretirement
	Fair Value Measurement at December 31, 2021, Using:
	Level 1		Level 2		Level 3	Net Asset Value	Total
	(millions of dollars)
Asset category:
Equity securities
U.S.	91	(1)	—		—	—	91
Non-U.S.	45	(1)	—		—	—	45
Debt securities
Corporate	—		95	(2)	—	—	95
Government	—		206	(2)	—	—	206
Asset-backed	—		—		—	—	—
Cash	—		3		—	—	3
Total at fair value	136		304		—	—	440

(1)For equity securities held in separate accounts, fair value is based on observable quoted prices on active exchanges.

(2)For corporate, government and asset-backed debt securities, fair value is based on observable inputs of comparable market transactions.


	Other Postretirement
	Fair Value Measurement at December 31, 2020, Using:
	Level 1		Level 2		Level 3	Net Asset Value	Total
	(millions of dollars)
Asset category:
Equity securities
U.S.	88	(1)	—		—	—	88
Non-U.S.	48	(1)	—		—	—	48
Debt securities
Corporate	—		103	(2)	—	—	103
Government	—		204	(2)	—	—	204
Asset-backed	—		—		—	—	—
Cash	—		—		—	3	3
Total at fair value	136		307		—	3	446

(1)For equity securities held in separate accounts, fair value is based on observable quoted prices on active exchanges.

(2)For corporate, government and asset-backed debt securities, fair value is based on observable inputs of comparable market transactions.

Pension Plans With Accumulated Benefit Obligation In Excess Of Plan Assets

A summary of pension plans with an accumulated benefit obligation and projected benefit obligation in excess of plan assets is shown in the table below:


	Pension Benefits
	U.S.		Non-U.S.
	2021	2020	2021	2020
	(millions of dollars)
For funded pension plans with an accumulated benefit obligation
in excess of plan assets:
Accumulated benefit obligation	14,511	16,129	3,108	4,602
Fair value of plan assets	13,266	15,300	1,711	2,652

For funded pension plans with a projected benefit obligation in excess of plan assets:
Projected benefit obligation	16,836	19,456	4,840	13,836
Fair value of plan assets	13,266	15,300	2,849	10,681

For unfunded pension plans:
Projected benefit obligation	1,675	2,206	5,166	6,187
Accumulated benefit obligation	1,270	1,373	4,685	5,469

Expected Contributions and Benefit Payments for Pension Benefits And Other Postretirement Benefits


	Pension Benefits		Other Postretirement Benefits
	U.S.	Non-U.S.	Gross	Medicare Subsidy Receipt
	(millions of dollars)
Contributions expected in 2022	640	405	—	—
Benefit payments expected in:
2022	1,306	1,173	423	21
2023	1,188	1,176	414	22
2024	1,179	1,205	409	23
2025	1,157	1,173	405	24
2026	1,154	1,155	396	25
2027 - 2031	5,803	6,145	1,981	132

Disclosures About Segments And Related Information (Tables)

12 Months Ended

Dec. 31, 2021

Segment Reporting, Measurement Disclosures [Abstract]

Disclosures About Segments And Related Information


	Upstream		Downstream		Chemical		Corporate and	Corporate
	U.S.	Non-U.S.	U.S.	Non-U.S.	U.S.	Non-U.S.	Financing	Total
	(millions of dollars)
As of December 31, 2021
Earnings (loss) after income tax	3,663	12,112	1,314	791	4,502	3,294	(2,636)	23,040
Earnings of equity companies included above	288	5,535	122	74	(139)	1,131	(354)	6,657
Sales and other operating revenue	8,883	12,914	80,044	137,963	15,309	21,549	30	276,692
Intersegment revenue	16,692	33,405	21,622	27,065	9,639	6,047	227	—
Depreciation and depletion expense	6,831	9,918	724	1,031	578	650	875	20,607
Interest revenue	—	—	—	—	—	—	33	33
Interest expense	58	36	1	7	—	1	844	947
Income tax expense (benefit)	1,116	4,871	379	160	1,476	688	(1,054)	7,636
Additions to property, plant and equipment	3,308	5,308	997	983	548	739	658	12,541
Investments in equity companies	4,999	18,544	352	888	3,020	3,759	(337)	31,225
Total assets	67,294	141,978	27,436	39,630	19,069	20,653	22,863	338,923

As of December 31, 2020
Earnings (loss) after income tax	(19,385)	(645)	(852)	(225)	1,277	686	(3,296)	(22,440)
Effect of asset impairments - noncash	(17,138)	(2,287)	(15)	(609)	(100)	(69)	(35)	(20,253)
Earnings of equity companies included above	(559)	2,101	134	(190)	(21)	651	(384)	1,732
Sales and other operating revenue	5,876	8,673	48,256	92,640	8,529	14,562	38	178,574
Intersegment revenue	8,508	19,642	12,258	15,162	6,099	3,881	221	—
Depreciation and depletion expense	28,627	12,723	716	1,672	685	694	892	46,009
Interest revenue	—	—	—	—	—	—	49	49
Interest expense	52	93	1	21	—	—	991	1,158
Income tax expense (benefit)	(5,958)	742	(324)	393	440	272	(1,197)	(5,632)
Additions to property, plant and equipment	5,726	4,418	2,983	1,731	1,221	592	671	17,342
Investments in equity companies	4,792	18,135	352	879	2,543	3,514	(443)	29,772
Total assets	71,287	144,730	23,754	34,848	17,839	20,220	20,072	332,750

As of December 31, 2019
Earnings (loss) after income tax	536	13,906	1,717	606	206	386	(3,017)	14,340
Earnings of equity companies included above	282	4,534	196	19	(4)	818	(404)	5,441
Sales and other operating revenue	9,364	13,779	70,523	134,460	9,723	17,693	41	255,583
Intersegment revenue	10,893	30,864	22,416	24,775	7,864	5,905	224	—
Depreciation and depletion expense	6,162	9,305	674	832	555	621	849	18,998
Interest revenue	—	—	—	—	—	—	84	84
Interest expense	54	34	1	9	—	1	731	830
Income tax expense (benefit)	(151)	5,509	465	361	58	305	(1,265)	5,282
Additions to property, plant and equipment	10,404	7,347	2,685	1,777	1,344	589	758	24,904
Investments in equity companies	5,313	17,736	319	1,062	1,835	3,335	(309)	29,291
Total assets	95,750	151,181	23,442	37,133	16,544	20,376	18,171	362,597

Geographic Sales And Other Operating Revenue


Sales and other operating revenue	2021	2020	2019
	(millions of dollars)
United States	104,236	62,663	89,612
Non-U.S.	172,456	115,911	165,971
Total	276,692	178,574	255,583

Significant non-U.S. revenue sources include: (1)
Canada	22,166	13,093	19,735
Singapore	15,031	9,442	12,128
United Kingdom	14,759	11,055	17,479
France	13,236	8,676	12,740
Italy	10,056	7,091	10,459
Belgium	9,153	6,231	11,644
Australia	7,646	5,839	7,941

(1)Revenue is determined by primary country of operations. Excludes certain sales and other operating revenues in Non-U.S. operations where attribution to a specific country is not practicable.

Schedule Of Long-Lived Assets By Geographic Regions


	December 31,
Long-lived assets	2021	2020	2019
	(millions of dollars)
United States	90,412	94,732	114,372
Non-U.S.	126,140	132,821	138,646
Total	216,552	227,553	253,018

Significant non-U.S. long-lived assets include:
Canada	34,907	36,232	39,130
Australia	12,988	14,792	13,933
Singapore	11,969	12,129	11,645
Kazakhstan	8,463	8,882	9,315
Papua New Guinea	7,534	7,803	8,057
United Arab Emirates	5,392	5,381	5,262
Nigeria	5,235	6,345	7,640
Guyana	4,892	3,547	2,542
Brazil	4,337	3,281	3,338
Russia	4,055	4,616	5,135
Angola	3,207	4,405	5,784

Income And Other Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income And Other Taxes [Abstract]

Schedule Of Income And Other Taxes


	2021			2020			2019
	U.S.	Non-U.S.	Total	U.S.	Non-U.S.	Total	U.S.	Non-U.S.	Total
				(millions of dollars)
Income tax expense (benefit)
Federal and non-U.S.
Current	236	6,948	7,184	262	2,908	3,170	(121)	6,171	6,050
Deferred - net	870	(914)	(44)	(6,045)	(2,007)	(8,052)	(255)	(420)	(675)
U.S. tax on non-U.S. operations	26	—	26	13	—	13	89	—	89
Total federal and non-U.S.	1,132	6,034	7,166	(5,770)	901	(4,869)	(287)	5,751	5,464
State	470	—	470	(763)	—	(763)	(182)	—	(182)
Total income tax expense (benefit)	1,602	6,034	7,636	(6,533)	901	(5,632)	(469)	5,751	5,282
All other taxes and duties
Other taxes and duties	3,731	26,508	30,239	3,108	23,014	26,122	3,566	26,959	30,525
Included in production and manufacturing expenses	1,589	674	2,263	1,148	663	1,811	1,385	811	2,196
Included in SG&A expenses	170	283	453	164	328	492	160	305	465
Total other taxes and duties	5,490	27,465	32,955	4,420	24,005	28,425	5,111	28,075	33,186
Total	7,092	33,499	40,591	(2,113)	24,906	22,793	4,642	33,826	38,468

Reconciliation Between Income Tax Expense And A Theoretical U.S. Tax

The reconciliation between income tax expense (credit) and a theoretical U.S. tax computed by applying a rate of 21 percent for 2021, 2020 and 2019 is as follows:


	2021		2020		2019
	(millions of dollars)
Income (loss) before income taxes
United States	9,478		(27,704)		(53)
Non-U.S.	21,756		(1,179)		20,109
Total	31,234		(28,883)		20,056
Theoretical tax	6,559		(6,065)		4,212
Effect of equity method of accounting	(1,398)		(364)		(1,143)
Non-U.S. taxes in excess of/(less than) theoretical U.S. tax (1)(2)	2,809		1,606		2,573
State taxes, net of federal tax benefit (1)	371		(603)		(144)

Other	(705)		(206)		(216)
Total income tax expense (credit)	7,636		(5,632)		5,282

Effective tax rate calculation
Income tax expense (credit)	7,636		(5,632)		5,282
ExxonMobil share of equity company income taxes	2,756		861		2,490
Total income tax expense (credit)	10,392		(4,771)		7,772
Net income (loss) including noncontrolling interests	23,598		(23,251)		14,774
Total income (loss) before taxes	33,990		(28,022)		22,546
Effective income tax rate	31	%	17	%	34	%

(1)2020 includes the impact of an increase in valuation allowance of $647 million in non-U.S. and $115 million in U.S. state jurisdictions.

Deferred Tax Liabilities/(Assets)

Deferred tax liabilities/(assets) are comprised of the following at December 31:


Tax effects of temporary differences for:	2021	2020
	(millions of dollars)
Property, plant and equipment	27,888	28,778
Other liabilities	6,353	6,427
Total deferred tax liabilities	34,241	35,205

Pension and other postretirement benefits	(3,687)	(4,703)
Asset retirement obligations	(2,865)	(3,150)
Tax loss carryforwards	(6,914)	(8,982)
Other assets	(7,694)	(7,095)
Total deferred tax assets	(21,160)	(23,930)

Asset valuation allowances	2,634	2,731
Net deferred tax liabilities	15,715	14,006

Deferred Income Tax (Assets) And Liabilities By Balance Sheet Classification


Balance sheet classification	2021	2020
	(millions of dollars)
Other assets, including intangibles, net	(4,450)	(4,159)
Deferred income tax liabilities	20,165	18,165
Net deferred tax liabilities	15,715	14,006

Unrecognized Tax Benefits

The following table summarizes the movement in unrecognized tax benefits:


Gross unrecognized tax benefits	2021	2020	2019
	(millions of dollars)
Balance at January 1	8,764	8,844	9,174
Additions based on current year's tax positions	358	253	287
Additions for prior years' tax positions	100	218	120
Reductions for prior years' tax positions	(79)	(201)	(97)
Reductions due to lapse of the statute of limitations	(2)	(237)	(279)
Settlements with tax authorities	(11)	(113)	(538)
Foreign exchange effects/other	—	—	177
Balance at December 31	9,130	8,764	8,844

Remaining Tax Years Subject To Examination By Major Tax Jurisdiction

The following table summarizes the tax years that remain subject to examination by major tax jurisdiction:


Country of Operation	Open Tax Years
Abu Dhabi	2020	—	2021
Angola	2018	—	2021
Australia	2010	—	2021
Belgium	2017	—	2021
Canada	2001	—	2021
Equatorial Guinea	2007	—	2021
Indonesia	2008	—	2021
Iraq	2016	—	2021
Malaysia	2017	—	2021
Nigeria	2006	—	2021
Papua New Guinea	2008	—	2021
Russia	2019	—	2021
United Kingdom	2015	—	2021
United States	2006	—	2021

Summary Of Accounting Policies (Details)	12 Months Ended
Summary Of Accounting Policies (Details)	Dec. 31, 2021
Investments in refinery, chemical process, and lubes basestock manufacturing equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years
Service station buildings and fixed improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	20 years

Restructuring Activities (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring charges, workforce reduction programs, before-tax	$ 58	$ 450
Restructuring Reserve	77	$ 403	$ 0
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges, workforce reduction programs, before-tax	58
Restructuring Reserve	$ 77

Restructuring Activities (Summary of Reserves and Charges) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring Reserve [Roll Forward]
Balance at January 1, Workforce reduction program reserves and charges	$ 403	$ 0
Additions/adjustments, Workforce reduction program reserves and charges	58	450
Payments made, Workforce reduction program reserves and charges	(384)	(47)
Balance at December 31, Workforce reduction program reserves and charges	$ 77	$ 403

Miscellaneous Financial Information (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Research and development expense	$ 843	$ 1,016	$ 1,214
Foreign currency transaction gain/(loss), before tax	(18)	(24)	(104)
Gains/(losses) on combined effects of LIFO inventory accumulations and draw-downs	54	41	$ 523
Aggregate replacement cost of inventories estimated to exceed LIFO carrying values	$ 14,000	5,400
Before-tax goodwill impairment charges		$ 611

Miscellaneous Financial Information (Crude Oil, Products And Merchandise) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Crude oil	$ 4,162	$ 5,354
Petroleum products	5,081	5,138
Chemical products	3,354	3,023
Gas/other	1,922	654
Total	$ 14,519	$ 14,169

Other Comprehensive Income Information (Schedule of Accumulated Other Comprehensive Income Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Comprehensive Income Foreign Currency Transaction and Translation Adjustment Net Of Tax Period Increase Decrease [Abstract]
Current period change excluding amounts reclassified from accumulated other comprehensive income, Cumulative Foreign Exchange Translation Adjustment	$ (872)	$ 1,916	$ 1,735
Amounts reclassified from accumulated other comprehensive income, Cumulative Foreign Exchange Translation Adjustment	(2)	14	0
Other Comprehensive Income Defined Benefit Plans, Net Of Tax Period Increase Decrease [Abstract]
Current period change excluding amounts reclassified from accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	3,118	30	(2,092)
Amounts reclassified from accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	925	896	582
Other Comprehensive Income Loss Net Of Tax Period Change [Abstract]
Beginning Balance, Total	(16,705)
Ending Balance, Total	(13,764)	(16,705)
Exxon Mobil Corporation Share After Noncontrolling Interest [Member]
Other Comprehensive Income Foreign Currency Transaction and Translation Adjustment Net Of Tax Period Increase Decrease [Abstract]
Beginning Balance, Cumulative Foreign Exchange Translation Adjustment	(10,614)	(12,446)	(13,881)
Current period change excluding amounts reclassified from accumulated other comprehensive income, Cumulative Foreign Exchange Translation Adjustment	(883)	1,818	1,435
Amounts reclassified from accumulated other comprehensive income, Cumulative Foreign Exchange Translation Adjustment	(2)	14	0
Total change in accumulated other comprehensive income, Cumulative Foreign Exchange Translation Adjustment	(885)	1,832	1,435
Ending Balance, Cumulative Foreign Exchange Translation Adjustment	(11,499)	(10,614)	(12,446)
Net investment hedge gain/(loss), net of taxes	329	(355)
Other Comprehensive Income Defined Benefit Plans, Net Of Tax Period Increase Decrease [Abstract]
Beginning Balance, Postretirement Benefits Reserves Adjustment	(6,091)	(7,047)	(5,683)
Current period change excluding amounts reclassified from accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	2,938	95	(1,927)
Amounts reclassified from accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	888	861	563
Total change in accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	3,826	956	(1,364)
Ending Balance, Postretirement Benefits Reserves Adjustment	(2,265)	(6,091)	(7,047)
Other Comprehensive Income Loss Net Of Tax Period Change [Abstract]
Beginning Balance, Total	(16,705)	(19,493)	(19,564)
Current period change excluding amounts reclassified from accumulated other comprehensive income, Total	2,055	1,913	(492)
Amounts reclassified from accumulated other comprehensive income, Total	886	875	563
Total change in accumulated other comprehensive income	2,941	2,788	71
Ending Balance, Total	$ (13,764)	$ (16,705)	$ (19,493)

Other Comprehensive Income Information (Amounts Reclassified Out Of Acc Other Comp Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Comprehensive Income Information Before Tax [Abstract]
Foreign exchange translation gain/(loss) included in net income (Statement of Income line: Other income)	$ 2	$ (14)	$ 0
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs (Statement of Income line: Non-service pension and postretirement benefit expense)	$ (1,229)	$ (1,158)	$ (751)

Other Comprehensive Income Information (Schedule Of Income Tax (Expense)/Credit For Components Of Other Comprehensive Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Comprehensive Income Information Tax [Abstract]
Foreign exchange translation adjustment	$ (114)	$ 118	$ 88
Postretirement benefits reserves adjustment (excluding amortization)	(983)	109	719
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs	(304)	(262)	(169)
Total	$ (1,401)	$ (35)	$ 638

Cash Flow Information (Cash Payments For Interest And Income Taxes) (Narrative) (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] $ in Billions	12 Months Ended
	Dec. 31, 2021 USD ($) site	Dec. 31, 2019 USD ($)
NonOperatedUpstreamAssetsInUK
Before tax gain on sale of non-operated upstream assets	$ 0.4
Proceeds from Divestiture of Businesses	0.7
Global Santoprene Business [Member]
Before tax gain on sale of non-operated upstream assets	0.8
Proceeds from Divestiture of Businesses	$ 1.1
Sites to be divested \| site	2
Nonoperated Upstream Assets In Norway [Member]
Before tax gain on sale of non-operated upstream assets		$ 3.7
Proceeds from Divestiture of Businesses		3.1
Sales price of non-operated upstream assets		$ 4.5

Cash Flow Information (Cash Payments For Interest And Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Supplemental Cash Flow Information [Abstract]
Income taxes paid	$ 5,341	$ 2,428	$ 7,018
Cash interest paid - Included in cash flows from operating activities	819	786	560
Cash interest paid - capitalized, included in cash flows from investing activities	655	665	731
Total cash interest paid	$ 1,474	$ 1,451	$ 1,291

Additional Working Capital Information (Narrative) (Details) - USD ($) $ in Billions	Dec. 31, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Weighted-average interest rate on short-term borrowings outstanding	0.20%	0.20%
Short Term Financing [Member]
Line of Credit Facility [Line Items]
Unused credit lines	$ 10.7

Additional Working Capital Information (Schedule Of Notes, Accounts Receivable And Payable, Loans Payable, Accrued Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Notes and Accounts Receivable [Abstract]
Trade notes and accounts receivable, less reserves of $159 million and $96 million	$ 26,883	$ 16,339
Other notes and accounts receivable, less reserves of $381 million and $378 million	5,500	4,242
Total notes and accounts receivable	32,383	20,581
Trade notes and accounts receivable, reserves	159	96
Other notes and accounts receivable, reserves	381	378
Notes and Loans Payable [Abstract]
Bank loans	276	222
Commercial paper	1,608	17,306
Long-term debt due within one year	2,392	2,930
Total notes and loans payable	4,276	20,458
Accounts Payable and Accrued Liabilities Current [Abstract]
Trade payables	26,623	17,499
Payables to equity companies	8,885	6,476
Accrued taxes other than income taxes	3,896	3,408
Other accounts payable and accrued liabilities	11,362	7,838
Total accounts payable and accrued liabilities	$ 50,766	$ 35,221

Equity Company Information (Narrative) (Details) - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]
Share of equity company revenues from sales to consolidated companies	10.00%	11.00%	13.00%
Upstream [Member]
Schedule of Equity Method Investments [Line Items]
Impairment related to equity method investments	$ 0.2	$ 0.6

Equity Company Information (Schedule Of Equity Company Financial Summary) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Total revenues	$ 285,640	$ 181,502	$ 264,938
Income from equity affiliates	6,657	1,732	5,441
Current assets	6,802	4,364
Total assets	338,923	332,750	362,597
Current liabilities	56,643	56,363
Investments (Companies carried at equity in underlying assets)	31,225	29,772	29,291
Exxon Mobil Equity Company
Schedule of Equity Method Investments [Line Items]
Total revenues	34,995	21,282	31,240
Income before income taxes	9,278	2,830	7,927
Income taxes	2,763	870	2,500
Income from equity affiliates	6,515	1,960	5,427
Current assets	15,542	11,969	12,661
Long-term assets	41,614	41,457	40,001
Total assets	57,156	53,426	52,662
Current liabilities	8,297	5,245	6,939
Long-term liabilities	19,084	19,927	18,158
Investments (Companies carried at equity in underlying assets)	29,775	28,254	27,565
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Schedule of Equity Method Investments [Line Items]
Total revenues	116,972	69,954	102,365
Income before income taxes	35,142	12,743	29,424
Income taxes	11,010	4,333	9,725
Income from equity affiliates	24,132	8,410	19,699
Current assets	45,267	33,419	36,035
Long-term assets	150,699	150,358	143,321
Total assets	195,966	183,777	179,356
Current liabilities	28,862	18,827	24,583
Long-term liabilities	63,138	66,053	61,022
Investments (Companies carried at equity in underlying assets)	$ 103,966	$ 98,897	$ 93,751

Equity Company Information (Schedule Of The Corporation's Percentage Ownership Interest) (Details)	Dec. 31, 2021
Upstream [Member]
Schedule of Equity Method Investments [Line Items]
Percentage ownership interest	71.00%
Downstream [Member]
Schedule of Equity Method Investments [Line Items]
Percentage ownership interest	50.00%
Chemical [Member]
Schedule of Equity Method Investments [Line Items]
Percentage ownership interest	50.00%

Investments, Advances And Long-Term Receivables (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Long-term Investments and Receivables, Net [Abstract]
Investments	$ 31,225	$ 29,772	$ 29,291
Advances, net of allowances of $34 million and $31 million	8,326	8,812
Total equity method company investments and advances	39,551	38,584
Equity securities carried at fair value and other investments at adjusted cost basis	138	143
Long-term receivables and miscellaneous, net of reserves of $5,974 million and $6,115 million	5,506	4,788
Total	45,195	43,515
Advances, allowances	34	31
Reserves for long-term receivables and miscellaneous investments	$ 5,974	$ 6,115

Property, Plant And Equipment And Asset Retirement Obligations (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Asset impairment charges, before-tax	$ 1,200		$ 100
Accumulated depreciation and depletion	278,510	$ 277,769
Long-term asset retirement obligations	9,985	10,558
Asset retirement obligations estimated cash payments in 2022	645
Asset retirement obligations estimated cash payments in 2023	$ 648
Upstream [Member]
Property, Plant and Equipment [Line Items]
Oil and gas properties impairment charges, before-tax		24,400
Other asset impairment charges, before-tax		900
Downstream [Member]
Property, Plant and Equipment [Line Items]
Other asset impairment charges, before-tax		500
Chemical [Member]
Property, Plant and Equipment [Line Items]
Other asset impairment charges, before-tax		$ 100

Property, Plant And Equipment And Asset Retirement Obligations (Property, Plant And Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, cost	$ 495,062	$ 505,322
Property, plant and equipment, net	216,552	227,553	$ 253,018
Upstream [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, cost	375,813	386,614
Property, plant and equipment, net	156,951	167,472
Downstream [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, cost	57,947	57,922
Property, plant and equipment, net	27,417	27,716
Chemical [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, cost	43,288	42,868
Property, plant and equipment, net	21,793	21,924
Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, cost	18,014	17,918
Property, plant and equipment, net	$ 10,391	$ 10,441

Property, Plant And Equipment And Asset Retirement Obligations (Asset Retirement Obligations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at January 1	$ 11,247	$ 11,280	$ 12,103
Accretion expense and other provisions	548	584	649
Reduction due to property sales	(1,002)	(77)	(1,085)
Payments made	(444)	(669)	(827)
Liabilities incurred	42	26	89
Foreign currency translation	(147)	239	84
Revisions	386	(136)	267
Balance at December 31	$ 10,630	$ 11,247	$ 11,280

Accounting For Suspended Exploratory Well Costs (Narrative) (Details) $ in Millions	Dec. 31, 2021 USD ($) Projects	Dec. 31, 2020 USD ($) Projects	Dec. 31, 2019 USD ($) Projects	Dec. 31, 2018 USD ($)
Exploratory Wells Drilled [Line Items]
Number of projects that have exploratory well costs capitalized for a period greater than one year	30	34	46
Number of projects that have drilling in the preceding twelve months or exploratory activity planned in the next two years as of December 31, 2021	13
Number of projects with completed exploratory activity progressing toward development as of December 31, 2021	17
Capitalized exploratory well costs \| $	$ 4,120	$ 4,382	$ 4,613	$ 4,160
17 Projects [Member]
Exploratory Wells Drilled [Line Items]
Capitalized exploratory well costs \| $	$ 2,874

Accounting For Suspended Exploratory Well Costs (Change In Capitalized Suspended Exploratory Well Costs) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Capitalized Exploratory Well Costs [Abstract]
Balance beginning at January 1	$ 4,382	$ 4,613	$ 4,160
Additions pending the determination of proved reserves	420	208	532
Charged to expense	(325)	(318)	(46)
Reclassifications to wells, facilities and equipment based on the determination of proved reserves	(328)	(174)	(37)
Divestments/Other	(29)	53	4
Ending balance at December 31	4,120	4,382	4,613
Ending balance attributed to equity companies included above	$ 306	$ 306	$ 306

Accounting For Suspended Exploratory Well Costs (Schedule Of Period End Capitalized Suspended Exploratory Well Costs) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Exploratory Well Costs Capitalized for More than One Year [Line Items]
Capitalized for a period of one year or less	$ 420	$ 208	$ 532
Capitalized for a period greater than one year - subtotal	3,700	4,174	4,081
Capitalized suspended exploratory well costs, total	4,120	4,382	4,613	$ 4,160
Capitalized For A Period Of Between One And Five Years [Member]
Exploratory Well Costs Capitalized for More than One Year [Line Items]
Capitalized for a period greater than one year - subtotal	1,642	1,828	2,206
Capitalized For A Period Of Between Five And Ten Years [Member]
Exploratory Well Costs Capitalized for More than One Year [Line Items]
Capitalized for a period greater than one year - subtotal	1,657	1,932	1,411
Capitalized For A Period Of Greater Than Ten Years [Member]
Exploratory Well Costs Capitalized for More than One Year [Line Items]
Capitalized for a period greater than one year - subtotal	$ 401	$ 414	$ 464

Accounting For Suspended Exploratory Well Costs (Schedule Of Number Of Projects With Suspended Exploratory Well Costs) (Details) - Projects	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Capitalized Exploratory Well Costs [Abstract]
Number of projects that only have exploratory well costs capitalized for a period of one year or less	4	3	4
Number of projects that have exploratory well costs capitalized for a period greater than one year	30	34	46
Total	34	37	50

Leases (Narrative) (Details) $ in Millions	12 Months Ended
Leases (Narrative) (Details) $ in Millions	Dec. 31, 2021 USD ($)
Lessee Lease Description [Line Items]
Estimated 2022 cash payments for operating and finance leases not yet commenced	$ 310
Estimated 2023 cash payments for operating and finance leases not yet commenced	415
Operating Lease [Member]
Lessee Lease Description [Line Items]
Additional undiscounted commitments for leases not yet commenced	962
Finance Lease [Member]
Lessee Lease Description [Line Items]
Additional undiscounted commitments for leases not yet commenced	$ 4,960

Leases (Lease Cost) (Details) - USD ($) $ in Millions	12 Months Ended
Leases (Lease Cost) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Lease [Member]
Operating Leased Assets [Line Items]
Operating lease cost	$ 1,542	$ 1,553	$ 1,434
Short-term and other (net of sublease rental income)	1,351	1,613	2,042
Total	2,893	3,166	3,476
Finance Lease [Member]
Operating Leased Assets [Line Items]
Amortization of right of use assets	133	143	121
Interest on lease liabilities	158	169	133
Total	291	312	254
Drilling Rigs and Related Equipment [Member]
Operating Leased Assets [Line Items]
Total	$ 681	$ 827	$ 1,164

Leases (Right of Use) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Operating Lease [Member]
Lessee Lease Description [Line Items]
Operating lease right of use asset	$ 6,082	$ 6,078
Total operating lease liability	$ 5,190	$ 5,162
Operating lease weighted average remaining lease term - years	10 years	11 years
Operating lease weighted average discount rate - percent	2.30%	2.90%
Operating Lease [Member] \| Other Assets [Member]
Lessee Lease Description [Line Items]
Operating lease right of use asset	$ 6,082	$ 6,078
Operating Lease [Member] \| Accounts Payable And Accrued Liabilities [Member]
Lessee Lease Description [Line Items]
Operating lease liability - current included in Accounts payable and accrued liabilities	1,367	1,168
Operating Lease [Member] \| Other Long-Term Obligations [Member]
Lessee Lease Description [Line Items]
Operating lease liability - noncurrent included in Other long-term obligations	3,823	3,994
Drilling Rigs and Related Equipment [Member]
Lessee Lease Description [Line Items]
Total operating lease liability	935	832
Finance Lease [Member]
Lessee Lease Description [Line Items]
Finance lease right of use asset	2,412	2,188
Total finance lease liability	$ 2,007	$ 1,921
Finance lease weighted average remaining lease term - years	20 years	20 years
Finance lease weighted average discount rate - percent	7.70%	8.90%
Finance Lease [Member] \| Property, Plant And Equipment [Member]
Lessee Lease Description [Line Items]
Finance lease right of use asset	$ 2,412	$ 2,188
Finance Lease [Member] \| Accounts Payable And Accrued Liabilities [Member]
Lessee Lease Description [Line Items]
Finance lease liability - current	4	4
Finance Lease [Member] \| Notes And Loans Payable [Member]
Lessee Lease Description [Line Items]
Finance lease liability - current	111	102
Finance Lease [Member] \| Long-Term Debt [Member]
Lessee Lease Description [Line Items]
Finance lease liability - noncurrent	1,761	1,680
Finance Lease [Member] \| Long-Term Obligations To Equity Companies [Member]
Lessee Lease Description [Line Items]
Finance lease liability - noncurrent	$ 131	$ 135

Leases (Maturity Schedule) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Operating Lease [Member]
Lessee Lease Description [Line Items]
Operating lease - 2022	$ 1,456
Operating lease - 2023	1,141
Operating lease - 2024	574
Operating lease - 2025	437
Operating lease - 2026	384
Operating lease - 2027 and beyond	1,978
Total operating lease payments	5,970
Operating lease - discount to present value	(780)
Total operating lease liability	5,190	$ 5,162
Drilling Rigs and Related Equipment [Member]
Lessee Lease Description [Line Items]
Total operating lease liability	935	832
Finance Lease [Member]
Lessee Lease Description [Line Items]
Finance lease - 2022	262
Finance lease - 2023	256
Finance lease - 2024	253
Finance lease - 2025	246
Finance lease - 2026	382
Finance lease - 2027 and beyond	2,111
Total finance lease payments	3,510
Finance lease - discount to present value	(1,503)
Total finance lease liability	$ 2,007	$ 1,921

Leases (Other Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Operating Lease [Member]
Lessee Lease Description [Line Items]
Cash flows from operating activities - operating leases	$ 1,135	$ 1,159	$ 1,116
Cash flow from investing activities	291	283	258
For January 1 adoption of ASC 842				$ 3,263
Operating right-of-use assets obtained in exchange for new lease liabilities	1,405	735	3,663
Finance Lease Paid To Equity Company [Member]
Lessee Lease Description [Line Items]
Cash flows from operating activities - finance leases	20	31	54
Finance Lease Paid To Third Parties [Member]
Lessee Lease Description [Line Items]
Cash flow from financing activities	110	94	177
Finance right-of-use assets obtained in exchange for new lease liabilities	$ 200	$ 108	$ 422

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings per common share
Net income (loss) attributable to ExxonMobil	$ 23,040	$ (22,440)	$ 14,340
Weighted average number of common shares outstanding (in shares)	4,275	4,271	4,270
Earnings (loss) per common share (in dollars per share)	$ 5.39	$ (5.25)	$ 3.36
Dividends paid per common share (in dollars per share)	$ 3.49	$ 3.48	$ 3.43

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

Financial Instruments And Derivatives (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Financial Instruments And Derivatives [Abstract]
Initial margin collateral receivable	$ 641	$ 504

Financial Instruments And Derivatives - Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Total Gross Assets & Liabilities [Domain]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	$ 2,945	$ 1,441
Advances to/receivables from equity companies	8,449	9,179
Other long-term financial assets	2,192	2,179
Derivative liabilities	4,295	1,697
Long-term debt	44,545	50,392
Long-term obligations to equity companies	3,084	3,530
Other long-term financial liabilities	902	964
Effect Of Counterparty Netting [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	(1,930)	(1,282)
Derivative liabilities	(1,930)	(1,282)
Effect Of Collateral Netting [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	(28)	(6)
Derivative liabilities	(306)	(202)
Difference In Carrying Value And Fair Value [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Advances to/receivables from equity companies	(123)	(367)
Other long-term financial assets	181	125
Long-term debt	(2,878)	(4,890)
Long-term obligations to equity companies	(227)	(277)
Other long-term financial liabilities	58	44
Net Carrying Value [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	987	153
Advances to/receivables from equity companies	8,326	8,812
Other long-term financial assets	2,373	2,304
Derivative liabilities	2,059	213
Long-term debt	41,667	45,502
Long-term obligations to equity companies	2,857	3,253
Other long-term financial liabilities	960	1,008
Level 1 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	1,422	1,247
Other long-term financial assets	1,134	1,235
Derivative liabilities	1,701	1,443
Long-term debt	44,454	50,263
Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	1,523	194
Advances to/receivables from equity companies	3,076	3,275
Derivative liabilities	2,594	254
Long-term debt	88	125
Level 3 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Advances to/receivables from equity companies	5,373	5,904
Other long-term financial assets	1,058	944
Long-term debt	3	4
Long-term obligations to equity companies	3,084	3,530
Other long-term financial liabilities	$ 902	$ 964

Financial Instruments and Derivatives - Derivative Instrument Balance Sheet (Details) bbl in Millions, MMBTU in Millions	12 Months Ended
	Dec. 31, 2021 MMBTU bbl	Dec. 31, 2020 MMBTU bbl
Crude Oil [Member] \| Long [Member]
Net notional long / short position of derivative instruments bbl	82	40
Petroleum Products [Member] \| Short [Member]
Net notional long / short position of derivative instruments bbl	48	46
Natural Gas [Member] \| Short [Member]
Net notional long / short position of derivative instruments MMBtus \| MMBTU	115	500

Financial Instruments and Derivatives - Derivative Instruments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Realized and Unrealized Before-Tax Gain / Loss on Derivative Instruments Recognized in the Consolidated Statement of Income
Sales and other operating revenue	$ 276,692	$ 178,574	$ 255,583
Crude oil and product purchases	(155,164)	(94,007)	(143,801)
Not Designated As Hedging Instrument, Trading [Member]
Realized and Unrealized Before-Tax Gain / Loss on Derivative Instruments Recognized in the Consolidated Statement of Income
Sales and other operating revenue	(3,818)	404	(412)
Crude oil and product purchases	48	(407)	179
Total	$ (3,770)	$ (3)	$ (233)

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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+ Details

Long-Term Debt (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 17, 2021
Long-term Debt [Line Items]
Long-term debt in U.S. dollars	$ 37,611
U.S. dollar equivalent at year-end exchange rates of amounts payable in foreign currencies	5,817
Portion of long-term debt included in current liability	2,392
Long-term debt maturing - 2023	4,039
Long-term debt maturing - 2024	3,836
Long-term debt maturing - 2025	4,597
Long-term debt maturing - 2026	3,575
Net investment hedge, European business	$ 5,100
Other U.S. Dollar Obligations [Member] \| Exxon Mobil Corporation [Member] \| 2.397% Notes Due 2022 [Member]
Long-term Debt [Line Items]
Interest rate	2.397%	2.397%
Long Term Financing [Member]
Long-term Debt [Line Items]
Unused credit lines	$ 600

Long-Term Debt (Summarized Long-Term Debt) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 17, 2021	Dec. 31, 2020
Long-term Debt [Line Items]
Debt issuance costs	$ (114)		$ (131)
Long-term debt	43,428		47,182
Exxon Mobil Corporation [Member]
Long-term Debt [Line Items]
Debt instrument, unamortized premium	131		148
XTO Energy Inc. [Member]
Long-term Debt [Line Items]
Debt instrument, unamortized premium	82		87
Combined Exxon Mobil And Affiliates [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Other long-term debt	64		78
Combined Exxon Mobil And Affiliates [Member] \| Other Foreign Currency Obligations [Member]
Long-term Debt [Line Items]
Other long-term debt	37		61
2.397% Notes Due 2022 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 0		1,150
Interest rate	2.397%	2.397%
1.902% Notes Due 2022 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 0		750
Interest rate	1.902%
Floating-Rate Notes Due 2022 (Issued 2015) [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 0		500
Floating-Rate Notes Due 2022 (Issued 2019) [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	0		750
1.571% Notes Due 2023 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 2,750		2,750
Interest rate	1.571%
2.726% Notes Due 2023 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,250		1,250
Interest rate	2.726%
3.176% Notes Due 2024 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,000		1,000
Interest rate	3.176%
2.019% Notes Due 2024 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,000		1,000
Interest rate	2.019%
2.709% Notes Due 2025 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,750		1,750
Interest rate	2.709%
2.992% Notes Due 2025 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 2,794		2,807
Interest rate	2.992%
3.043% Notes Due 2026 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 2,500		2,500
Interest rate	3.043%
2.275% Notes Due 2026 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,000		1,000
Interest rate	2.275%
3.294% Notes Due 2027 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,000		1,000
Interest rate	3.294%
2.440% Notes Due 2029 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,250		1,250
Interest rate	2.44%
3.482% Notes Due 2030 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 2,000		2,000
Interest rate	3.482%
2.610% Notes Due 2030 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 2,000		2,000
Interest rate	2.61%
2.995% Notes Due 2039 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 750		750
Interest rate	2.995%
4.227% Notes Due 2040 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 2,087		2,091
Interest rate	4.227%
3.567% Notes Due 2045 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,000		1,000
Interest rate	3.567%
4.114% Notes Due 2046 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 2,500		2,500
Interest rate	4.114%
3.095% Notes Due 2049 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,500		1,500
Interest rate	3.095%
4.327% Notes Due 2050 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 2,750		2,750
Interest rate	4.327%
3.452% Notes Due 2051 [Member] \| Exxon Mobil Corporation [Member] \| Other U.S. Dollar Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 2,750		2,750
Interest rate	3.452%
0.142% Notes Due 2024 [Member] \| Exxon Mobil Corporation Euro-Denominated [Member] \| Other Foreign Currency Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,698		1,841
Interest rate	0.142%
0.524% Notes Due 2028 [Member] \| Exxon Mobil Corporation Euro-Denominated [Member] \| Other Foreign Currency Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,133		1,227
Interest rate	0.524%
0.835% Notes Due 2032 [Member] \| Exxon Mobil Corporation Euro-Denominated [Member] \| Other Foreign Currency Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,133		1,227
Interest rate	0.835%
1.408% Notes Due 2039 [Member] \| Exxon Mobil Corporation Euro-Denominated [Member] \| Other Foreign Currency Obligations [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 1,133		1,227
Interest rate	1.408%
6.100% Senior Notes Due 2036 [Member] \| XTO Energy Inc. [Member] \| Senior Notes [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 191		192
Interest rate	6.10%
6.750% Senior Notes Due 2037 [Member] \| XTO Energy Inc. [Member] \| Senior Notes [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 291		294
Interest rate	6.75%
6.375% Senior Notes Due 2038 [Member] \| XTO Energy Inc. [Member] \| Senior Notes [Member]
Long-term Debt [Line Items]
Senior notes, noncurrent	$ 226		227
Interest rate	6.375%
Industrial Revenue Bonds Due 2022-2051 [Member] \| Combined Exxon Mobil And Affiliates [Member]
Long-term Debt [Line Items]
Other long-term debt	$ 2,244		2,461
Average effective interest rate	0.028%
Finance Lease Obligations [Member] \| Combined Exxon Mobil And Affiliates [Member]
Long-term Debt [Line Items]
Finance lease obligations	$ 1,761		$ 1,680
Average effective interest rate	7.438%

Incentive Program (Narrative) (Details) - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Minimum ownership of affiliates needed for awards	50.00%
Options and stock appreciation rights grant, minimum percentage of market value, date of grant	100.00%
Share-based compensation arrangement by share-based payment award expiration period	10 years
Number of shares issuable under 2003 incentive program, maximum	220,000
Remaining shares available for award under 2003 incentive program	66,000
Restricted Stock [Member]
Long-term incentive awards (in shares)	8,133	8,681	8,936
Percent of the shares in each award vesting after three years	50.00%
Percent of shares in each award vesting after five years	50.00%
Percent of the shares in each award vesting after seven years	50.00%
Percent of shares in each award vesting in later of ten years or retirement	50.00%
Unrecognized compensation cost	$ 1,268
Unrecognized compensation cost, weighted-average period of recognition, years	4 years 4 months 24 days
Compensation cost charged against income	$ 612	$ 672	$ 741
Income tax benefit recognized in income	49	51	51
Fair value of shares/awards vested	562	367	647
Cash payments, vested restricted stock units	$ 48	$ 34	$ 56
Restricted Stock [Member] \| Minimum [Member]
Vesting period	3 years
Restricted Stock [Member] \| Minimum [Member] \| Executive Officer [Member]
Vesting period	5 years
Restricted Stock [Member] \| Maximum [Member]
Vesting period	7 years
Restricted Stock [Member] \| Maximum [Member] \| Executive Officer [Member] \| Share-based Payment Arrangement, Tranche One [Member]
Vesting period	10 years
Restricted Stock [Member] \| Maximum [Member] \| Executive Officer [Member] \| Share-based Payment Arrangement, Tranche Two [Member]
Vesting period	10 years

Incentive Program (Summary Of Restricted Stock And Units Outstanding) (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Share-based Payment Arrangement [Abstract]
Issued and outstanding at January 1, Restricted stock, Shares \| shares	39,585
Awards issued in 2021, Shares \| shares	8,753
Vested, Shares \| shares	(9,142)
Forfeited, Shares \| shares	(274)
Issued and outstanding at December 31, Restricted stock, Shares \| shares	38,922
Issued and outstanding at January 1, Weighted Average Grant-Date Fair Value per Share \| $ / shares	$ 80.43
Awards issued in 2021, Weighted Average Grant-Date Fair Value per Share \| $ / shares	41.29
Vested, Weighted Average Grant-Date Fair Value per Share \| $ / shares	86.16
Forfeited, Weighted Average Grant-Date Fair Value per Share \| $ / shares	66.54
Issued and outstanding at December 31, Weighted Average Grant-Date Fair Value per Share \| $ / shares	$ 70.38

Incentive Program (Grant Value Of Restricted Stock Units) (Details) - Restricted Stock [Member] - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grant price, per share	$ 62.76	$ 41.15	$ 68.77
Units settled in stock	$ 461	$ 325	$ 559
Units settled in cash	49	32	55
Total value	$ 510	$ 357	$ 614

Litigation And Other Contingencies (Schedule Of Guarantees) (Details) $ in Millions	Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items]
Guarantees	$ 8,522
Equity Company Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	1,884
Other Third-Party Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	6,638
Debt-Related Guarantees [Member]
Loss Contingencies [Line Items]
Guarantees	1,249
Debt-Related Guarantees [Member] \| Equity Company Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	1,109
Debt-Related Guarantees [Member] \| Other Third-Party Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	140
Other Guarantees [Member]
Loss Contingencies [Line Items]
Guarantees	7,273
Other Guarantees [Member] \| Equity Company Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	775
Other Guarantees [Member] \| Other Third-Party Obligations [Member]
Loss Contingencies [Line Items]
Guarantees	$ 6,498

Pension And Other Postretirement Benefits (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate	4.00%
Year that rate reaches ultimate trend rate	2023
Costs for defined contribution plans	$ 177	$ 358	$ 422
U.S. [Member] \| Equity Securities [Member] \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	30.00%
U.S. [Member] \| Equity Securities [Member] \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	10.00%
U.S. [Member] \| Venture Capital Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	5.00%
Pension Benefits - Non-U.S. [Member] \| Equity Securities [Member] \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	30.00%
Pension Benefits - Non-U.S. [Member] \| Equity Securities [Member] \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	10.00%
Pension Benefits - Non-U.S. [Member] \| Venture Capital Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation	5.00%

Pension And Other Postretirement Benefits (Benefit Obligations And Plan Assets Associated With Principal Benefit Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in benefit obligation
Medicare subsidy receipts	$ 9	$ 16
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.00%	2.80%
Long-term rate of compensation increase	4.50%	5.50%
Change in benefit obligation
Benefit obligation at January 1	$ 21,662	$ 20,959
Service cost	919	965	$ 757
Interest cost	558	708	766
Actuarial loss/(gain)	(747)	1,287
Benefits paid	(3,810)	(1,987)
Amendments, divestments and other	(71)	(270)
Benefit obligation at December 31	18,511	21,662	20,959
Accumulated benefit obligation at December 31	$ 15,781	$ 17,502
Pension Benefits - Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.20%	1.60%
Long-term rate of compensation increase	4.20%	4.20%
Change in benefit obligation
Benefit obligation at January 1	$ 33,626	$ 29,918
Service cost	774	707	551
Interest cost	526	657	763
Actuarial loss/(gain)	(2,803)	2,344
Benefits paid	(1,550)	(1,317)
Foreign exchange rate changes	(1,162)	1,375
Amendments, divestments and other	81	(58)
Benefit obligation at December 31	29,492	33,626	29,918
Accumulated benefit obligation at December 31	$ 27,373	$ 30,952
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.10%	2.80%
Long-term rate of compensation increase	4.50%	5.50%
Change in benefit obligation
Benefit obligation at January 1	$ 8,135	$ 8,113
Service cost	188	181	139
Interest cost	221	277	315
Actuarial loss/(gain)	(881)	(66)
Benefits paid	(517)	(510)
Foreign exchange rate changes	3	23
Amendments, divestments and other	116	117
Benefit obligation at December 31	$ 7,265	$ 8,135	$ 8,113

Pension And Other Postretirement Benefits (Change In Plan Assets Of Pension And Other Postretirement Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
U.S. [Member]
Change in plan assets
Fair value at January 1	$ 15,300	$ 13,636
Actual return on plan assets	479	2,269
Company contribution	794	1,004
Benefits paid	(3,307)	(1,609)
Fair value at December 31	13,266	15,300
Pension Benefits - Non-U.S. [Member]
Change in plan assets
Fair value at January 1	26,216	22,916
Actual return on plan assets	571	2,795
Foreign exchange rate changes	(605)	1,011
Company contribution	293	597
Benefits paid	(1,167)	(992)
Other	(428)	(111)
Fair value at December 31	24,880	26,216
Other Postretirement Benefits [Member]
Change in plan assets
Fair value at January 1	446	425
Actual return on plan assets	20	42
Company contribution	28	37
Benefits paid	(54)	(58)
Fair value at December 31	$ 440	$ 446

Pension And Other Postretirement Benefits (Summary Of Assets In Excess Of/(Less Than) Benefit Obligation) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Funded plans	$ (3,570)	$ (4,156)
Unfunded plans	(1,675)	(2,206)
Total	(5,245)	(6,362)
Pension Benefits - Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Funded plans	554	(1,223)
Unfunded plans	(5,166)	(6,187)
Total	$ (4,612)	$ (7,410)

Pension And Other Postretirement Benefits (Assets Recorded In Balance Sheet And Other Comprehensive Income) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Postretirement benefits reserves	$ (18,430)	$ (22,415)
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Balance at December 31	(5,245)	(6,362)
Current liabilities	(206)	(377)
Postretirement benefits reserves	(5,039)	(5,985)
Total recorded	(5,245)	(6,362)
Net actuarial loss/(gain)	1,865	3,102
Prior service cost	(324)	(275)
Total recorded in accumulated other comprehensive income	1,541	2,827
Pension Benefits - Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Balance at December 31	(4,612)	(7,410)
Other assets	2,544	1,931
Current liabilities	(267)	(273)
Postretirement benefits reserves	(6,889)	(9,068)
Total recorded	(4,612)	(7,410)
Net actuarial loss/(gain)	2,841	5,904
Prior service cost	262	208
Total recorded in accumulated other comprehensive income	3,103	6,112
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Balance at December 31	(6,825)	(7,689)
Current liabilities	(323)	(327)
Postretirement benefits reserves	(6,502)	(7,362)
Total recorded	(6,825)	(7,689)
Net actuarial loss/(gain)	197	1,164
Prior service cost	(232)	(274)
Total recorded in accumulated other comprehensive income	$ (35)	$ 890

Pension And Other Postretirement Benefits (Long-Term Rates Of Pension And Other Postretirement Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Total recorded in other comprehensive income	$ (5,220)	$ (1,189)	$ 2,041
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.80%	3.50%	4.40%
Long-term rate of return on funded assets	5.30%	5.30%	5.30%
Long-term rate of compensation increase	5.50%	5.75%	5.75%
Service cost	$ 919	$ 965	$ 757
Interest cost	558	708	766
Expected return on plan assets	(722)	(703)	(568)
Amortization of actuarial loss/(gain)	244	310	305
Amortization of prior service cost	(23)	5	5
Net pension enhancement and curtailment/settlement cost	489	280	164
Net periodic benefit cost	1,465	1,565	1,429
Net actuarial loss/(gain)	(504)	(279)	609
Amortization of actuarial (loss)/gain	(733)	(590)	(469)
Prior service cost/(credit)	(72)	(271)	0
Amortization of prior service (cost)/credit	23	(5)	(5)
Total recorded in other comprehensive income	(1,286)	(1,145)	135
Total recorded in net periodic benefit cost and other comprehensive income, before tax	$ 179	$ 420	$ 1,564
Pension Benefits - Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	1.60%	2.30%	3.00%
Long-term rate of return on funded assets	4.10%	4.10%	4.10%
Long-term rate of compensation increase	4.20%	4.80%	4.30%
Service cost	$ 774	$ 707	$ 551
Interest cost	526	657	763
Expected return on plan assets	(1,031)	(897)	(777)
Amortization of actuarial loss/(gain)	420	416	306
Amortization of prior service cost	57	68	56
Net pension enhancement and curtailment/settlement cost	32	49	(98)
Net periodic benefit cost	778	1,000	801
Net actuarial loss/(gain)	(2,361)	446	1,268
Amortization of actuarial (loss)/gain	(430)	(442)	(208)
Prior service cost/(credit)	92	(82)	379
Amortization of prior service (cost)/credit	(55)	(68)	(56)
Foreign exchange rate changes	(255)	236	19
Total recorded in other comprehensive income	(3,009)	90	1,402
Total recorded in net periodic benefit cost and other comprehensive income, before tax	$ (2,231)	$ 1,090	$ 2,203
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.80%	3.50%	4.40%
Long-term rate of return on funded assets	4.60%	4.60%	4.60%
Long-term rate of compensation increase	5.50%	5.75%	5.75%
Service cost	$ 188	$ 181	$ 139
Interest cost	221	277	315
Expected return on plan assets	(19)	(18)	(15)
Amortization of actuarial loss/(gain)	76	95	55
Amortization of prior service cost	(42)	(42)	(42)
Net periodic benefit cost	424	493	452
Net actuarial loss/(gain)	(891)	(92)	517
Amortization of actuarial (loss)/gain	(76)	(95)	(55)
Prior service cost/(credit)	0	0	0
Amortization of prior service (cost)/credit	42	42	42
Foreign exchange rate changes	0	11	0
Total recorded in other comprehensive income	(925)	(134)	504
Total recorded in net periodic benefit cost and other comprehensive income, before tax	$ (501)	$ 359	$ 956

Pension And Other Postretirement Benefits (Summary Of The Change In Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Total (charge)/credit to other comprehensive income, before tax	$ 5,220	$ 1,189	$ (2,041)
(Charge)/credit to income tax (see Note 4)	(1,287)	(153)	550
(Charge)/credit to investment in equity companies	110	(110)	(19)
(Charge)/credit to other comprehensive income including noncontrolling interests, after tax	4,043	926	(1,510)
Charge/(credit) to equity of noncontrolling interests	(217)	30	146
Exxon Mobil Corporation Share After Noncontrolling Interest [Member]
Defined Benefit Plan Disclosure [Line Items]
Total change in accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	3,826	956	(1,364)
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Total (charge)/credit to other comprehensive income, before tax	1,286	1,145	(135)
Pension Benefits - Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Total (charge)/credit to other comprehensive income, before tax	3,009	(90)	(1,402)
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Total (charge)/credit to other comprehensive income, before tax	$ 925	$ 134	$ (504)

Pension And Other Postretirement Benefits (Fair Value Of Benefit Plan Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 13,266	$ 15,300	$ 13,636
U.S. [Member] \| Total At Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	4,073	4,886
Fair value of plan assets	13,260	15,293
U.S. [Member] \| U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	1,956	2,323
Fair value of plan assets	1,956	2,323
U.S. [Member] \| Non-U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	1,290	1,703
Fair value of plan assets	1,290	1,703
U.S. [Member] \| Private Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	661	548
Fair value of plan assets	661	548
U.S. [Member] \| Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	1	1
Fair value of plan assets	5,243	5,147
U.S. [Member] \| Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	2	2
Fair value of plan assets	3,947	5,263
U.S. [Member] \| Asset-Backed Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	1	1
Fair value of plan assets	1	1
U.S. [Member] \| Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	162	308
Fair value of plan assets	162	308
U.S. [Member] \| Insurance Contracts At Contract Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6	7
U.S. [Member] \| Fair Value Inputs Level 2 [Member] \| Total At Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	9,187	10,407
U.S. [Member] \| Fair Value Inputs Level 2 [Member] \| Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	5,242	5,146
U.S. [Member] \| Fair Value Inputs Level 2 [Member] \| Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	3,945	5,261
Pension Benefits - Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	24,880	26,216	$ 22,916
Pension Benefits - Non-U.S. [Member] \| Total At Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	24,217	25,486
Fair value of plan assets	24,858	26,193
Pension Benefits - Non-U.S. [Member] \| U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	3,416	4,177
Fair value of plan assets	3,416	4,177
Pension Benefits - Non-U.S. [Member] \| Non-U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	2,424	3,285
Fair value of plan assets	2,500	3,374
Pension Benefits - Non-U.S. [Member] \| Private Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	627	530
Fair value of plan assets	627	530
Pension Benefits - Non-U.S. [Member] \| Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	5,831	5,212
Fair value of plan assets	5,950	5,350
Pension Benefits - Non-U.S. [Member] \| Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	11,620	11,993
Fair value of plan assets	11,926	12,359
Pension Benefits - Non-U.S. [Member] \| Asset-Backed Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	191	239
Fair value of plan assets	216	263
Pension Benefits - Non-U.S. [Member] \| Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	108	50
Fair value of plan assets	223	140
Pension Benefits - Non-U.S. [Member] \| Insurance Contracts At Contract Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	22	23
Pension Benefits - Non-U.S. [Member] \| Fair Value Inputs Level 1 [Member] \| Total At Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	347	408
Pension Benefits - Non-U.S. [Member] \| Fair Value Inputs Level 1 [Member] \| Non-U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	76	89
Pension Benefits - Non-U.S. [Member] \| Fair Value Inputs Level 1 [Member] \| Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	209	250
Pension Benefits - Non-U.S. [Member] \| Fair Value Inputs Level 1 [Member] \| Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	62	69
Pension Benefits - Non-U.S. [Member] \| Fair Value Inputs Level 2 [Member] \| Total At Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	294	299
Pension Benefits - Non-U.S. [Member] \| Fair Value Inputs Level 2 [Member] \| Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	119	138
Pension Benefits - Non-U.S. [Member] \| Fair Value Inputs Level 2 [Member] \| Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	97	116
Pension Benefits - Non-U.S. [Member] \| Fair Value Inputs Level 2 [Member] \| Asset-Backed Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	25	24
Pension Benefits - Non-U.S. [Member] \| Fair Value Inputs Level 2 [Member] \| Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	$ 53	$ 21

Pension And Other Postretirement Benefits (Fair Value Of Benefit Plan Assets - Other Postretirement) (Details) - Other Postretirement Benefit Plans Defined Benefit [Member] - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	$ 0	$ 3
Fair value of plan assets	440	446
U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	0	0
Fair value of plan assets	91	88
Non-U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	0	0
Fair value of plan assets	45	48
Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	95	103
Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	206	204
Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, net asset value	0	3
Fair value of plan assets	3	3
Fair Value Inputs Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	136	136
Fair Value Inputs Level 1 [Member] \| U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	91	88
Fair Value Inputs Level 1 [Member] \| Non-U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	45	48
Fair Value Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	304	307
Fair Value Inputs Level 2 [Member] \| Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	95	103
Fair Value Inputs Level 2 [Member] \| Government Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	206	204
Fair Value Inputs Level 2 [Member] \| Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, fair value hierarchy	$ 3	$ 0

Pension And Other Postretirement Benefits (Pension Plans With Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Funded Pension Plans [Member] \| U.S. [Member]
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Accumulated benefit obligation	$ 14,511	$ 16,129
Fair value of plan assets	13,266	15,300
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	16,836	19,456
Fair value of plan assets	13,266	15,300
Funded Pension Plans [Member] \| Pension Benefits - Non-U.S. [Member]
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Accumulated benefit obligation	3,108	4,602
Fair value of plan assets	1,711	2,652
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	4,840	13,836
Fair value of plan assets	2,849	10,681
Unfunded Pension Plans [Member] \| U.S. [Member]
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Accumulated benefit obligation	1,270	1,373
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	1,675	2,206
Unfunded Pension Plans [Member] \| Pension Benefits - Non-U.S. [Member]
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Accumulated benefit obligation	4,685	5,469
Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	$ 5,166	$ 6,187

Pension And Other Postretirement Benefits (Expected Contribution Pension Benefits And Other Postretirement Benefits) (Details) $ in Millions	Dec. 31, 2021 USD ($)
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions expected in 2022	$ 640
Benefits payments expected in 2022	1,306
Benefits payments expected in 2023	1,188
Benefits payments expected in 2024	1,179
Benefits payments expected in 2025	1,157
Benefits payments expected in 2026	1,154
Benefits payments expected in 2027-2031	5,803
Pension Benefits - Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions expected in 2022	405
Benefits payments expected in 2022	1,173
Benefits payments expected in 2023	1,176
Benefits payments expected in 2024	1,205
Benefits payments expected in 2025	1,173
Benefits payments expected in 2026	1,155
Benefits payments expected in 2027-2031	6,145
Gross Other Post Retirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefits payments expected in 2022	423
Benefits payments expected in 2023	414
Benefits payments expected in 2024	409
Benefits payments expected in 2025	405
Benefits payments expected in 2026	396
Benefits payments expected in 2027-2031	1,981
Other Postretirement Benefits Medicare Subsidy Receipt [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefits payments expected in 2022	21
Benefits payments expected in 2023	22
Benefits payments expected in 2024	23
Benefits payments expected in 2025	24
Benefits payments expected in 2026	25
Benefit payments expected in 2027-2031	$ 132

Disclosures About Segments And Related Information (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting, Measurement Disclosures [Abstract]
Non-debt-related interest expense	$ 103	$ 148	$ 105

Disclosures About Segments And Related Information (Schedule Of Segments And Related Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Earnings (loss) after income tax	$ 23,040	$ (22,440)	$ 14,340
Effect of asset impairments - noncash, after-tax		(20,253)
Earnings of equity companies included above	6,657	1,732	5,441
Sales and other operating revenue	276,692	178,574	255,583
Depreciation and depletion expense	20,607	46,009	18,998
Interest revenue	33	49	84
Interest expense	947	1,158	830
Income tax expense (benefit)	7,636	(5,632)	5,282
Additions to property, plant and equipment	12,541	17,342	24,904
Investments in equity companies	31,225	29,772	29,291
Total assets	338,923	332,750	362,597
U.S. [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenue	104,236	62,663	89,612
Income tax expense (benefit)	1,602	(6,533)	(469)
Non-U.S. [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenue	172,456	115,911	165,971
Income tax expense (benefit)	6,034	901	5,751
Upstream [Member] \| U.S. [Member]
Segment Reporting Information [Line Items]
Earnings (loss) after income tax	3,663	(19,385)	536
Effect of asset impairments - noncash, after-tax		(17,138)
Earnings of equity companies included above	288	(559)	282
Sales and other operating revenue	8,883	5,876	9,364
Intersegment revenue	16,692	8,508	10,893
Depreciation and depletion expense	6,831	28,627	6,162
Interest expense	58	52	54
Income tax expense (benefit)	1,116	(5,958)	(151)
Additions to property, plant and equipment	3,308	5,726	10,404
Investments in equity companies	4,999	4,792	5,313
Total assets	67,294	71,287	95,750
Upstream [Member] \| Non-U.S. [Member]
Segment Reporting Information [Line Items]
Earnings (loss) after income tax	12,112	(645)	13,906
Effect of asset impairments - noncash, after-tax		(2,287)
Earnings of equity companies included above	5,535	2,101	4,534
Sales and other operating revenue	12,914	8,673	13,779
Intersegment revenue	33,405	19,642	30,864
Depreciation and depletion expense	9,918	12,723	9,305
Interest expense	36	93	34
Income tax expense (benefit)	4,871	742	5,509
Additions to property, plant and equipment	5,308	4,418	7,347
Investments in equity companies	18,544	18,135	17,736
Total assets	141,978	144,730	151,181
Downstream [Member] \| U.S. [Member]
Segment Reporting Information [Line Items]
Earnings (loss) after income tax	1,314	(852)	1,717
Effect of asset impairments - noncash, after-tax		(15)
Earnings of equity companies included above	122	134	196
Sales and other operating revenue	80,044	48,256	70,523
Intersegment revenue	21,622	12,258	22,416
Depreciation and depletion expense	724	716	674
Interest expense	1	1	1
Income tax expense (benefit)	379	(324)	465
Additions to property, plant and equipment	997	2,983	2,685
Investments in equity companies	352	352	319
Total assets	27,436	23,754	23,442
Downstream [Member] \| Non-U.S. [Member]
Segment Reporting Information [Line Items]
Earnings (loss) after income tax	791	(225)	606
Effect of asset impairments - noncash, after-tax		(609)
Earnings of equity companies included above	74	(190)	19
Sales and other operating revenue	137,963	92,640	134,460
Intersegment revenue	27,065	15,162	24,775
Depreciation and depletion expense	1,031	1,672	832
Interest expense	7	21	9
Income tax expense (benefit)	160	393	361
Additions to property, plant and equipment	983	1,731	1,777
Investments in equity companies	888	879	1,062
Total assets	39,630	34,848	37,133
Chemical [Member] \| U.S. [Member]
Segment Reporting Information [Line Items]
Earnings (loss) after income tax	4,502	1,277	206
Effect of asset impairments - noncash, after-tax		(100)
Earnings of equity companies included above	(139)	(21)	(4)
Sales and other operating revenue	15,309	8,529	9,723
Intersegment revenue	9,639	6,099	7,864
Depreciation and depletion expense	578	685	555
Income tax expense (benefit)	1,476	440	58
Additions to property, plant and equipment	548	1,221	1,344
Investments in equity companies	3,020	2,543	1,835
Total assets	19,069	17,839	16,544
Chemical [Member] \| Non-U.S. [Member]
Segment Reporting Information [Line Items]
Earnings (loss) after income tax	3,294	686	386
Effect of asset impairments - noncash, after-tax		(69)
Earnings of equity companies included above	1,131	651	818
Sales and other operating revenue	21,549	14,562	17,693
Intersegment revenue	6,047	3,881	5,905
Depreciation and depletion expense	650	694	621
Interest expense	1	0	1
Income tax expense (benefit)	688	272	305
Additions to property, plant and equipment	739	592	589
Investments in equity companies	3,759	3,514	3,335
Total assets	20,653	20,220	20,376
Corporate And Financing [Member]
Segment Reporting Information [Line Items]
Earnings (loss) after income tax	(2,636)	(3,296)	(3,017)
Effect of asset impairments - noncash, after-tax		(35)
Earnings of equity companies included above	(354)	(384)	(404)
Sales and other operating revenue	30	38	41
Intersegment revenue	227	221	224
Depreciation and depletion expense	875	892	849
Interest revenue	33	49	84
Interest expense	844	991	731
Income tax expense (benefit)	(1,054)	(1,197)	(1,265)
Additions to property, plant and equipment	658	671	758
Investments in equity companies	(337)	(443)	(309)
Total assets	$ 22,863	$ 20,072	$ 18,171

Disclosures About Segments And Related Information (Schedule Of Geographic Sales And Other Operating Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	$ 276,692	$ 178,574	$ 255,583
U.S. [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	104,236	62,663	89,612
Non-U.S. [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	172,456	115,911	165,971
Canada [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	22,166	13,093	19,735
Singapore [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	15,031	9,442	12,128
United Kingdom [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	14,759	11,055	17,479
France [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	13,236	8,676	12,740
Italy [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	10,056	7,091	10,459
Belgium [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	9,153	6,231	11,644
Australia [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	$ 7,646	$ 5,839	$ 7,941

Disclosures About Segments And Related Information (Schedule Of Long-Lived Assets By Geographic Regions) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 216,552	$ 227,553	$ 253,018
U.S. [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	90,412	94,732	114,372
Non-U.S. [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	126,140	132,821	138,646
Canada [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	34,907	36,232	39,130
Australia [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	12,988	14,792	13,933
Singapore [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	11,969	12,129	11,645
Kazakhstan [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	8,463	8,882	9,315
Papua New Guinea [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	7,534	7,803	8,057
United Arab Emirates [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	5,392	5,381	5,262
Nigeria [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	5,235	6,345	7,640
Guyana [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	4,892	3,547	2,542
Brazil [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	4,337	3,281	3,338
Russia [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	4,055	4,616	5,135
Angola [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 3,207	$ 4,405	$ 5,784

Income And Other Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income And Other Taxes [Abstract]
Reconciliation between income tax expense and theoretical U.S. tax rate, statutory rate	21.00%	21.00%	21.00%
Valuation Allowance [Abstract]
Asset valuation allowances	$ 2,634	$ 2,731
Valuation allowance change from 2020 to 2021	$ (97)
Potential percentage increase in unrecognized tax benefits	10.00%
Potential percentage decrease in unrecognized tax benefits	70.00%
Interest expense on income tax reserves	$ 0	(6)	$ 0
Interest payable on income tax reserves	61	61
Change in net provisions [Member]
Valuation Allowance [Abstract]
Valuation allowance change from 2020 to 2021	41
Effects of foreign currency translation [Member]
Valuation Allowance [Abstract]
Valuation allowance change from 2020 to 2021	137
Total US and Non US
Income And Other Taxes [Abstract]
Net deferred income tax expense (credits)/charges for tax rate and law changes	$ (53)	(25)	$ (740)
AssetImpairments [Member]
Income And Other Taxes [Abstract]
Net deferred income tax expense (credits)/charges for tax rate and law changes		$ (6,300)

Income And Other Taxes (Schedule Of Income And Other Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income and Other Taxes [Line Items]
Current	$ 7,184	$ 3,170	$ 6,050
Deferred - net	(44)	(8,052)	(675)
U.S. tax on non-U.S. operations	26	13	89
Total federal and non-U.S.	7,166	(4,869)	5,464
State	470	(763)	(182)
Total income tax expense (benefit)	7,636	(5,632)	5,282
Other taxes and duties	30,239	26,122	30,525
Other taxes and duties included in production and manufacturing expenses	2,263	1,811	2,196
Other taxes and duties included in SG&A expenses	453	492	465
Total other taxes and duties	32,955	28,425	33,186
Total	40,591	22,793	38,468
U.S. [Member]
Income and Other Taxes [Line Items]
Current	236	262	(121)
Deferred - net	870	(6,045)	(255)
U.S. tax on non-U.S. operations	26	13	89
Total federal and non-U.S.	1,132	(5,770)	(287)
State	470	(763)	(182)
Total income tax expense (benefit)	1,602	(6,533)	(469)
Other taxes and duties	3,731	3,108	3,566
Other taxes and duties included in production and manufacturing expenses	1,589	1,148	1,385
Other taxes and duties included in SG&A expenses	170	164	160
Total other taxes and duties	5,490	4,420	5,111
Total	7,092	(2,113)	4,642
Non-U.S. [Member]
Income and Other Taxes [Line Items]
Current	6,948	2,908	6,171
Deferred - net	(914)	(2,007)	(420)
Total federal and non-U.S.	6,034	901	5,751
Total income tax expense (benefit)	6,034	901	5,751
Other taxes and duties	26,508	23,014	26,959
Other taxes and duties included in production and manufacturing expenses	674	663	811
Other taxes and duties included in SG&A expenses	283	328	305
Total other taxes and duties	27,465	24,005	28,075
Total	$ 33,499	$ 24,906	$ 33,826

Income And Other Taxes (Reconciliation Between Income Tax Expense And Theoretical U.S. Tax) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income And Other Taxes [Abstract]
United States income (loss) before income taxes	$ 9,478	$ (27,704)	$ (53)
Non-U.S. income (loss) before income taxes	21,756	(1,179)	20,109
Income (loss) before income taxes	31,234	(28,883)	20,056
Theoretical tax	6,559	(6,065)	4,212
Effect of equity method of accounting	(1,398)	(364)	(1,143)
Non-U.S. taxes in excess of/(less than) theoretical U.S. tax	2,809	1,606	2,573
State taxes, net of federal tax benefit	371	(603)	(144)
Other	(705)	(206)	(216)
Total income tax expense (benefit)	7,636	(5,632)	5,282
ExxonMobil share of equity company income taxes	2,756	861	2,490
Total income tax expense (credit)	10,392	(4,771)	7,772
Net income (loss) including noncontrolling interests	23,598	(23,251)	14,774
Total income (loss) before taxes	$ 33,990	$ (28,022)	$ 22,546
Effective income tax rate	31.00%	17.00%	34.00%
Reconciliation between income tax expense and theoretical U.S. tax rate, statutory rate	21.00%	21.00%	21.00%
U.S. [Member]
Income And Other Taxes [Abstract]
Total income tax expense (benefit)	$ 1,602	$ (6,533)	$ (469)
Effective Tax Rate [Line Items]
Deferred tax asset valuation allowances		115
Non-U.S. [Member]
Income And Other Taxes [Abstract]
Total income tax expense (benefit)	$ 6,034	901	5,751
Effective Tax Rate [Line Items]
Deferred tax asset valuation allowances		$ 647
Norway operations and the sale of upstream assets			(773)
Tax rate change in Alberta, Canada			(657)
Adjustment to prior year tax position charge/(benefit)			$ (268)

Income And Other Taxes (Deferred Income Taxes Assets And Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Income And Other Taxes [Abstract]
Property, plant and equipment	$ 27,888	$ 28,778
Other liabilities	6,353	6,427
Total deferred tax liabilities	34,241	35,205
Pension and other postretirement benefits	(3,687)	(4,703)
Asset retirement obligations	(2,865)	(3,150)
Tax loss carryforwards	(6,914)	(8,982)
Other assets	(7,694)	(7,095)
Total deferred tax assets	(21,160)	(23,930)
Asset valuation allowances	2,634	2,731
Net deferred tax liabilities	$ 15,715	$ 14,006

Income And Other Taxes (Deferred Income Tax (Assets) And Liabilities By Balance Sheet Classification) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Income And Other Taxes [Abstract]
Other assets, including intangibles, net	$ (4,450)	$ (4,159)
Deferred income tax liabilities	20,165	18,165
Net deferred tax liabilities	$ 15,715	$ 14,006

Income And Other Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Unrecognized Tax Benefits [Roll Forward]
Balance at January 1	$ 8,764	$ 8,844	$ 9,174
Additions based on current year's tax positions	358	253	287
Additions for prior years' tax positions	100	218	120
Reductions for prior years' tax positions	(79)	(201)	(97)
Reductions due to lapse of the statute of limitations	(2)	(237)	(279)
Settlements with tax authorities	(11)	(113)	(538)
Foreign exchange effects/other	0	0	177
Balance at December 31	$ 9,130	$ 8,764	$ 8,844

Income And Other Taxes (Remaining Tax Years Subject To Examination By Major Tax Jurisdiction) (Details)	12 Months Ended
	Dec. 31, 2021
Abu Dhabi [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2020
Abu Dhabi [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Angola [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2018
Angola [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Australia [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2010
Australia [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Belgium [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2017
Belgium [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Canada [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2001
Canada [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Equatorial Guinea [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2007
Equatorial Guinea [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Indonesia [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2008
Indonesia [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Iraq [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2016
Iraq [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Malaysia [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2017
Malaysia [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Nigeria [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2006
Nigeria [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Papua New Guinea [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2008
Papua New Guinea [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
Russia [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2019
Russia [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
United Kingdom [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2015
United Kingdom [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021
United States [Member] \| Earliest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2006
United States [Member] \| Latest Tax Year [Member]
Income and Other Taxes [Line Items]
Open tax years by major tax jurisdiction	2021