Exxon Mobil (XOM) 10-Q 5 May 21 2021 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information	3 Months Ended
	Mar. 31, 2021shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	1-2256
Entity Registrant Name	Exxon Mobil Corporation
Entity Incorporation, State or Country Code	NJ
Entity Tax Identification Number	13-5409005
Entity Address, Address Line One	5959 Las Colinas Boulevard
Entity Address, City or Town	Irving
Entity Address State or Province	TX
Entity Address, Postal Zip Code	75039-2298
City Area Code	972
Local Phone Number	940-6000
Document Information [Line Items]
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	4,233,538,917
Amendment Flag	false
Entity Central Index Key	0000034088
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Common Stock, without par value [Member]
Document Information [Line Items]
Security 12(b) Title	Common Stock, without par value
Trading Symbol	XOM
Security Exchange Name	NYSE
0.142% Notes Due 2024 [Member]
Document Information [Line Items]
Security 12(b) Title	0.142% Notes due 2024
Trading Symbol	XOM24B
Security Exchange Name	NYSE
0.524% Notes Due 2028 [Member]
Document Information [Line Items]
Security 12(b) Title	0.524% Notes due 2028
Trading Symbol	XOM28
Security Exchange Name	NYSE
0.835% Notes Due 2032 [Member]
Document Information [Line Items]
Security 12(b) Title	0.835% Notes due 2032
Trading Symbol	XOM32
Security Exchange Name	NYSE
1.408% Notes Due 2039 [Member]
Document Information [Line Items]
Security 12(b) Title	1.408% Notes due 2039
Trading Symbol	XOM39A
Security Exchange Name	NYSE

Condensed Consolidated Statemen

Condensed Consolidated Statement Of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues and other income
Sales and other operating revenue	$ 57,552	$ 55,134
Income from equity affiliates	1,473	775
Other income	122	249
Total revenues and other income	59,147	56,158
Costs and other deductions
Crude oil and product purchases	32,601	32,083
Production and manufacturing expenses	8,062	8,297
Selling, general and administrative expenses	2,428	2,579
Depreciation and depletion	5,004	5,819
Exploration expenses, including dry holes	164	288
Non-service pension and postretirement benefit expense	378	269
Interest expense	258	249
Other taxes and duties	6,660	6,832
Total costs and other deductions	55,555	56,416
Income (Loss) before income taxes	3,592	(258)
Income taxes	796	512
Net income (loss) including noncontrolling interests	2,796	(770)
Net income (loss) attributable to noncontrolling interests	66	(160)
Net income (loss) attributable to ExxonMobil	$ 2,730	$ (610)
Earnings (Loss) per common share (dollars)	$ 0.64	$ (0.14)
Earnings (Loss) per common share - assuming dilution (dollars)	$ 0.64	$ (0.14)

Condensed Consolidated Statem_2

Condensed Consolidated Statement Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss) including noncontrolling interests	$ 2,796	$ (770)
Other comprehensive income (loss) (net of income taxes)
Foreign exchange translation adjustment	149	(5,649)
Postretirement benefits reserves adjustment (excluding amortization)	168	87
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs	378	204
Total other comprehensive income (loss)	695	(5,358)
Comprehensive income (loss) including noncontrolling interests	3,491	(6,128)
Comprehensive income (loss) attributable to noncontrolling interests	146	(672)
Comprehensive income (loss) attributable to ExxonMobil	$ 3,345	$ (5,456)

Condensed Consolidated Balance

Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 3,515	$ 4,364
Notes and accounts receivable – net	24,755	20,581
Inventories
Crude oil, products and merchandise	13,740	14,169
Materials and supplies	4,617	4,681
Other current assets	1,568	1,098
Total current assets	48,195	44,893
Investments, advances and long-term receivables	44,181	43,515
Property, plant and equipment – net	224,641	227,553
Other assets, including intangibles – net	16,753	16,789
Total assets	333,770	332,750
Current liabilities
Notes and loans payable	18,185	20,458
Accounts payable and accrued liabilities	41,017	35,221
Income taxes payable	948	684
Total current liabilities	60,150	56,363
Long-term debt	45,137	47,182
Postretirement benefits reserves	21,835	22,415
Deferred income tax liabilities	18,113	18,165
Long-term obligations to equity companies	3,279	3,253
Other long-term obligations	21,155	21,242
Total liabilities	169,669	168,620
Commitments and contingencies (Note 3)
Equity
Common stock without par value (9,000 million shares authorized, 8,019 million shares issued)	15,884	15,688
Earnings reinvested	382,953	383,943
Accumulated other comprehensive income	(16,090)	(16,705)
Common stock held in treasury (3,785 million shares at Mar. 31, 2021 and 3,786 million shares at Dec. 31, 2020)	(225,773)	(225,776)
ExxonMobil share of equity	156,974	157,150
Noncontrolling interests	7,127	6,980
Total equity	164,101	164,130
Total liabilities and equity	$ 333,770	$ 332,750

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheet (Parenthetical) - $ / shares shares in Millions	Mar. 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	3,785	3,786

Condensed Consolidated Statem_3

Condensed Consolidated Statement Of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net income (loss) including noncontrolling interests		$ 2,796	$ (770)
Depreciation and depletion		5,004	5,819
Noncash inventory adjustment - lower of cost or market		0	2,245
Changes in operational working capital, excluding cash and debt		1,953	(942)
All other items – net		(489)	(78)
Net cash provided by operating activities		9,264	6,274
Cash flows from investing activities
Additions to property, plant and equipment		(2,400)	(5,945)
Proceeds from asset sales and returns of investments		307	86
Additional investments and advances		(349)	(728)
Other investing activities including collection of advances		87	220
Net cash used in investing activities		(2,355)	(6,367)
Cash flows from financing activities
Additions to long-term debt		0	8,466
Reductions in long-term debt		0	(2)
Additions to short-term debt	[1]	5,781	13,128
Reductions in short-term debt	[1]	(10,849)	(6,500)
Additions/(reductions) in commercial paper and debt with three months or less maturity		1,003	(2,332)
Cash dividends to ExxonMobil shareholders		(3,720)	(3,719)
Cash dividends to noncontrolling interests		(52)	(45)
Changes in noncontrolling interests		53	94
Common stock acquired		(1)	(305)
Net cash used in financing activities		(7,785)	8,785
Effects of exchange rate changes on cash		27	(369)
Increase/(decrease) in cash and cash equivalents		(849)	8,323
Cash and cash equivalents at beginning of period		4,364	3,089
Cash and cash equivalents at end of period		3,515	11,412
Supplemental Disclosures
Income taxes paid		855	1,372
Cash interest paid
Cash interest paid - Included in cash flows from operating activities		405	313
Cash interest paid - Capitalized, included in cash flows from investing activities		151	155
Total cash interest paid		$ 556	$ 468
[1]	Includes commercial paper with a maturity greater than three months.

Condensed Consolidated Statem_4

Condensed Consolidated Statement Of Changes In Equity - USD ($) shares in Millions, $ in Millions	Total	ExxonMobil Share Of Common Stock [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 Interests [Member]
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Amortization of stock-based awards	$ 181	181				181
Other	(25)	(182)				(182)	157
Net income (loss) for the period	(770)		(610)			(610)	(160)
Dividends - common shares (company)			(3,719)			(3,719)
Dividends - common shares (NCI)							(45)
Dividends - common shares (total)	(3,764)
Cumulative effect of accounting change	(94)		(93)			(93)	(1)
Other comprehensive income (loss)	(5,358)			(4,846)		(4,846)	(512)
Acquisitions, at cost (company)					$ (305)	(305)
Acquisitions, at cost (NCI)							(63)
Acquisitions, at cost (total)	$ (368)
Acquisitions (in shares)	(6)				(6)
Dispositions	$ 3				$ 3	3
Balance at Mar. 31, 2020	$ 188,743	15,636	416,919	(24,339)	(226,137)	182,079	6,664
Balance (in shares) - issued at Mar. 31, 2020	8,019
Balance (in shares) - in treasury at Mar. 31, 2020	(3,791)
Balance (in shares) - outstanding at Mar. 31, 2020	4,228
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Amortization of stock-based awards	$ 202	202				202
Other	47	(6)				(6)	53
Net income (loss) for the period	2,796		2,730			2,730	66
Dividends - common shares (company)			(3,720)			(3,720)
Dividends - common shares (NCI)							(52)
Dividends - common shares (total)	(3,772)
Other comprehensive income (loss)	695			615		615	80
Acquisitions, at cost (company)					(1)	(1)
Acquisitions, at cost (NCI)							0
Acquisitions, at cost (total)	(1)
Dispositions	$ 4				$ 4	4
Disposition (in shares)	1				1
Balance at Mar. 31, 2021	$ 164,101	$ 15,884	$ 382,953	$ (16,090)	$ (225,773)	$ 156,974	$ 7,127
Balance (in shares) - issued at Mar. 31, 2021	8,019
Balance (in shares) - in treasury at Mar. 31, 2021	(3,785)
Balance (in shares) - outstanding at Mar. 31, 2021	4,234

Basis Of Financial Statement Pr

Basis Of Financial Statement Preparation	3 Months Ended
	Mar. 31, 2021
Basis Of Financial Statement Preparation [Abstract]
Basis Of Financial Statement Preparation	Basis of Financial Statement Preparation These unaudited condensed consolidated financial statements should be read in the context of the consolidated financial statements and notes thereto filed with the Securities and Exchange Commission in the Corporation's 2020 Annual Report on Form 10-K. In the opinion of the Corporation, the information furnished herein reflects all known accruals and adjustments necessary for a fair statement of the results for the periods reported herein. All such adjustments are of a normal recurring nature. Prior data has been reclassified in certain cases to conform to the current presentation basis. The Corporation's exploration and production activities are accounted for under the "successful efforts" method.

Miscellaneous Financial Informa

Miscellaneous Financial Information	3 Months Ended
	Mar. 31, 2021
Disclosure Text Block Supplement [Abstract]
Miscellaneous Financial Information	Miscellaneous Financial Information 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). The Corporation's results for the first quarter of 2020 included a before-tax charge of $2,777 million, included in "Crude oil and product purchases" on the Statement of Income, from writing down the book value of inventories to their market value at the end of the period. This adjustment, together with a market adjustment to inventory for equity companies included in "Income from equity affiliates," resulted in a $2,096 million after-tax charge to earnings (excluding noncontrolling interests) in the first quarter of 2020. These charges were adjusted throughout 2020 to reflect the current market price of the inventory at the end of each reporting period. In the first quarter of 2020, mainly as a result of declines in prices for crude oil, natural gas and petroleum products and a significant decline in the Corporation's market capitalization at the end of the first quarter, before-tax goodwill impairment charges of $611 million and other impairment charges of $299 million were recognized. The charges related to goodwill impairment were included in “Depreciation and depletion” on the Statement of Income while the charges related to other impairments were largely included in “Income from equity affiliates.”

Litigation And Other Contingenc

Litigation And Other Contingencies	3 Months Ended
	Mar. 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 March 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. These guarantees are not reasonably likely to have a material effect on the Corporation’s financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources. As of March 31, 2021 Equity Company Obligations (1) Other Third-Party Obligations Total (millions of dollars) Guarantees Debt-related 1,014 126 1,140 Other 837 4,912 5,749 Total 1,851 5,038 6,889 (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 operations and earnings of the Corporation and its affiliates throughout the world have been, and may in the future be, affected from time to time in varying degree by political developments and laws and regulations, such as forced divestiture of assets; restrictions on production, imports and exports; price controls; tax increases and retroactive tax claims; expropriation of property; cancellation of contract rights and environmental regulations. Both the likelihood of such occurrences and their overall effect upon the Corporation vary greatly from country to country and are not predictable. In accordance with a Venezuelan nationalization decree issued in February 2007, a subsidiary of the Venezuelan National Oil Company (PdVSA) assumed the operatorship of the Cerro Negro Heavy Oil Project. The decree also required conversion of the Cerro Negro Project into a “mixed enterprise” and an increase in PdVSA’s or one of its affiliate’s ownership interest in the Project. ExxonMobil refused to accede to the terms proffered by the government, and on June 27, 2007, the government expropriated ExxonMobil’s 41.67 percent interest in the Cerro Negro Project. ExxonMobil collected awards of $908 million in an arbitration against PdVSA under the rules of the International Chamber of Commerce in respect of an indemnity related to the Cerro Negro Project and $260 million in an arbitration for compensation due for the La Ceiba Project and for export curtailments at the Cerro Negro Project under rules of International Centre for Settlement of Investment Disputes (ICSID). An ICSID arbitration award relating to the Cerro Negro Project’s expropriation ($1.4 billion) was annulled based on a determination that a prior Tribunal failed to adequately explain why the cap on damages in the indemnity owed by PdVSA did not affect or limit the amount owed for the expropriation of the Cerro Negro Project. ExxonMobil filed a new claim seeking to restore the original award of damages for the Cerro Negro Project with ICSID on September 26, 2018. The net impact of this matter on the Corporation’s consolidated financial results cannot be reasonably estimated. Regardless, the Corporation does not expect the resolution to have a material effect upon the Corporation’s operations or financial condition.

Other Comprehensive Income Info

Other Comprehensive Income Information	3 Months Ended
	Mar. 31, 2021
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Other Comprehensive Income Information	Other Comprehensive Income Information ExxonMobil Share of Accumulated Other Comprehensive Income Cumulative Foreign Exchange Translation Adjustment Postretirement Benefits Total (millions of dollars) Balance as of December 31, 2019 (12,446) (7,047) (19,493) Current period change excluding amounts reclassified from accumulated other comprehensive income (5,113) 72 (5,041) Amounts reclassified from accumulated other comprehensive income — 195 195 Total change in accumulated other comprehensive income (5,113) 267 (4,846) Balance as of March 31, 2020 (17,559) (6,780) (24,339) Balance as of December 31, 2020 (10,614) (6,091) (16,705) Current period change excluding amounts reclassified from accumulated other comprehensive income (1) 88 158 246 Amounts reclassified from accumulated other comprehensive income — 369 369 Total change in accumulated other comprehensive income 88 527 615 Balance as of March 31, 2021 (10,526) (5,564) (16,090) (1) Cumulative Foreign Exchange Translation Adjustment includes net investment hedge gain/(loss) of $191 million, net of taxes. Three Months Ended Amounts Reclassified Out of Accumulated Other Comprehensive Income - Before-tax Income/(Expense) 2021 2020 (millions of dollars) 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) (484) (262) Three Months Ended Income Tax (Expense)/Credit For Components of Other Comprehensive Income 2021 2020 (millions of dollars) Foreign exchange translation adjustment (53) 7 Postretirement benefits reserves adjustment (excluding amortization) (58) (62) Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs (106) (58) Total (217) (113)

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Three Months Ended 2021 2020 Earnings per common share Net income (loss) attributable to ExxonMobil (millions of dollars) 2,730 (610) Weighted average number of common shares outstanding (millions of shares) 4,272 4,270 Earnings (Loss) per common share (dollars) (1) 0.64 (0.14) Dividends paid per common share (dollars) 0.87 0.87 (1) The calculation of earnings (loss) per common share and earnings (loss) per common share – assuming dilution are the same in each period shown.

Pension And Other Postretiremen

Pension And Other Postretirement Benefits	3 Months Ended
	Mar. 31, 2021
Retirement Benefits [Abstract]
Pension And Other Postretirement Benefits	Pension and Other Postretirement Benefits Three Months Ended 2021 2020 (millions of dollars) Components of net benefit cost Pension Benefits - U.S. Service cost 225 235 Interest cost 139 177 Expected return on plan assets (180) (175) Amortization of actuarial loss/(gain) and prior service cost 55 79 Net pension enhancement and curtailment/settlement cost 298 52 Net benefit cost 537 368 Pension Benefits - Non-U.S. Service cost 195 175 Interest cost 130 161 Expected return on plan assets (258) (222) Amortization of actuarial loss/(gain) and prior service cost 123 119 Net pension enhancement and curtailment/settlement cost 12 — Net benefit cost 202 233 Other Postretirement Benefits Service cost 49 45 Interest cost 56 70 Expected return on plan assets (5) (4) Amortization of actuarial loss/(gain) and prior service cost 8 12 Net benefit cost 108 123

Financial Instruments and Deriv

Financial Instruments and Derivatives	3 Months Ended
	Mar. 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 March 31, 2021, and December 31, 2020, and the related hierarchy level for the fair value measurement is as follows: At March 31, 2021 (millions of dollars) Fair Value Level 1 Level 2 Level 3 Total Gross Assets Effect of Effect of Difference Net Assets Derivative assets (1) 1,338 264 — 1,602 (1,332) (62) — 208 Advances to/receivables from equity companies (2)(6) — 3,115 6,083 9,198 — — (233) 8,965 Other long-term financial assets (3) 1,157 — 1,046 2,203 — — 120 2,323 Liabilities Derivative liabilities (4) 1,389 329 — 1,718 (1,332) (113) — 273 Long-term debt (5) 45,594 111 4 45,709 — — (2,236) 43,473 Long-term obligations to equity companies (6) — — 3,567 3,567 — — (288) 3,279 Other long-term financial liabilities (7) — — 979 979 — — 55 1,034 At December 31, 2020 (millions of dollars) Fair Value Level 1 Level 2 Level 3 Total Gross Effect of Effect of Difference Net 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 March 31, 2021, and December 31, 2020, respectively, the Corporation had $447 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. 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 March 31, 2021, the Corporation has designated $5.3 billion of its 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. 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 March 31, 2021, and December 31, 2020, or results of operations for the periods ended March 31, 2021, and 2020. 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 March 31, 2021, and December 31, 2020, was as follows: March 31, December 31, 2021 2020 (millions) Crude oil (barrels) 71 40 Petroleum products (barrels) (53) (46) Natural Gas (MMBTUs) (532) (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: Three Months Ended 2021 2020 (millions of dollars) Sales and other operating revenue (512) 1,236 Crude oil and product purchases 1 (352) Total (511) 884

Disclosures About Segments And

Disclosures About Segments And Related Information	3 Months Ended
	Mar. 31, 2021
Segment Reporting, Measurement Disclosures [Abstract]
Disclosures About Segments And Related Information	Disclosures about Segments and Related Information Three Months Ended 2021 2020 Earnings (Loss) After Income Tax (millions of dollars) Upstream United States 363 (704) Non-U.S. 2,191 1,240 Downstream United States (113) (101) Non-U.S. (277) (510) Chemical United States 715 288 Non-U.S. 700 (144) Corporate and financing (849) (679) Corporate total 2,730 (610) Sales and Other Operating Revenue Upstream United States 1,885 1,777 Non-U.S. 3,094 2,567 Downstream United States 16,078 15,384 Non-U.S. 28,613 29,304 Chemical United States 3,091 2,296 Non-U.S. 4,887 3,800 Corporate and financing (96) 6 Corporate total 57,552 55,134 Intersegment Revenue Upstream United States 3,323 2,273 Non-U.S. 6,817 6,387 Downstream United States 3,953 3,952 Non-U.S. 5,381 5,124 Chemical United States 1,950 1,766 Non-U.S. 1,231 1,263 Corporate and financing 57 55 Geographic Three Months Ended Sales and Other Operating Revenue 2021 2020 (millions of dollars) United States 21,054 19,457 Non-U.S. 36,498 35,677 Total 57,552 55,134 Significant Non-U.S. revenue sources include: (1) Canada 4,258 3,823 Singapore 3,435 2,616 United Kingdom 2,943 3,691 France 2,782 2,589 Belgium 1,989 1,889 Italy 1,865 1,958 Australia 1,729 1,654 (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.

Sale of United Kingdom Assets

Sale of United Kingdom Assets	3 Months Ended
	Mar. 31, 2021
Discontinued Operations and Disposal Groups [Abstract]
Sale of United Kingdom Assets	Sale of United Kingdom Assets ExxonMobil signed an agreement with HitecVision, through its wholly-owned portfolio company NEO Energy, for the sale of most of its non-operated upstream assets in the United Kingdom central and northern North Sea for more than $1 billion. The transaction is expected to close near mid-year 2021, subject to standard conditions precedent, including regulatory and third-party approvals. The agreed sales price is subject to interim period adjustments from the effective date of January 1, 2021, to the closing date, and has an additional upside potential of approximately $0.3 billion in contingent payments, based on production level and commodity prices. Estimated total cash flow from the divestment will range from $0.7 billion to $1.2 billion, of which $0.7 billion to $0.8 billion is expected in 2021 and the remainder in future years. The Corporation expects to recognize a gain at closing. Estimated gain and net cash flow could change due to market factors and timing of close .

Restructuring Activities

Restructuring Activities	3 Months Ended
	Mar. 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, which are expected to be substantially completed by the end of 2021, include both voluntary and involuntary employee separations and reductions in contractors. During the first quarter of 2021, the Corporation recorded before-tax charges of $39 million, consisting primarily of employee separation costs, from workforce reductions in Singapore and Europe associated with the global review of staffing levels. These costs are captured in “Selling, general and administrative expenses” on the Statement of Income. For the full year, the Corporation estimates charges of up to $200 million related to planned workforce reduction programs associated with the global review of staffing levels. This does not include charges related to employee reductions associated with any portfolio changes or other projects. The following table summarizes the reserves and charges related to the workforce reduction programs associated with the global review of staffing levels, which are recorded in “Accounts payable and accrued liabilities.” 2021 (millions of dollars) Balance at January 1 403 Additions/adjustments 39 Payments made (130) Balance at March 31 312

Summary of Accounting Policies

Summary of Accounting Policies (Policy)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Inventory Policy	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).
Legal Costs Policy	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.
Net Investment Hedge Risk Management Policy	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.

Litigation And Other Continge_2

Litigation And Other Contingencies (Tables)	3 Months Ended
	Mar. 31, 2021
Loss Contingency [Abstract]
Schedule Of Guarantees	As of March 31, 2021 Equity Company Obligations (1) Other Third-Party Obligations Total (millions of dollars) Guarantees Debt-related 1,014 126 1,140 Other 837 4,912 5,749 Total 1,851 5,038 6,889 (1) ExxonMobil share

Other Comprehensive Income In_2

Other Comprehensive Income Information (Tables)	3 Months Ended
	Mar. 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 Total (millions of dollars) Balance as of December 31, 2019 (12,446) (7,047) (19,493) Current period change excluding amounts reclassified from accumulated other comprehensive income (5,113) 72 (5,041) Amounts reclassified from accumulated other comprehensive income — 195 195 Total change in accumulated other comprehensive income (5,113) 267 (4,846) Balance as of March 31, 2020 (17,559) (6,780) (24,339) Balance as of December 31, 2020 (10,614) (6,091) (16,705) Current period change excluding amounts reclassified from accumulated other comprehensive income (1) 88 158 246 Amounts reclassified from accumulated other comprehensive income — 369 369 Total change in accumulated other comprehensive income 88 527 615 Balance as of March 31, 2021 (10,526) (5,564) (16,090) (1) Cumulative Foreign Exchange Translation Adjustment includes net investment hedge gain/(loss) of $191 million, net of taxes.
Reclassification Out Of Accumulated Other Comprehensive Income	Three Months Ended Amounts Reclassified Out of Accumulated Other Comprehensive Income - Before-tax Income/(Expense) 2021 2020 (millions of dollars) 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) (484) (262)
Schedule Of Income Tax (Expense)/Credit For Components Of Other Comprehensive Income	Three Months Ended Income Tax (Expense)/Credit For Components of Other Comprehensive Income 2021 2020 (millions of dollars) Foreign exchange translation adjustment (53) 7 Postretirement benefits reserves adjustment (excluding amortization) (58) (62) Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs (106) (58) Total (217) (113)

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Share Computation	Three Months Ended 2021 2020 Earnings per common share Net income (loss) attributable to ExxonMobil (millions of dollars) 2,730 (610) Weighted average number of common shares outstanding (millions of shares) 4,272 4,270 Earnings (Loss) per common share (dollars) (1) 0.64 (0.14) Dividends paid per common share (dollars) 0.87 0.87 (1) The calculation of earnings (loss) per common share and earnings (loss) per common share – assuming dilution are the same in each period shown.

Pension And Other Postretirem_2

Pension And Other Postretirement Benefits (Tables)	3 Months Ended
	Mar. 31, 2021
Retirement Benefits [Abstract]
Pension And Other Postretirement Benefits	Three Months Ended 2021 2020 (millions of dollars) Components of net benefit cost Pension Benefits - U.S. Service cost 225 235 Interest cost 139 177 Expected return on plan assets (180) (175) Amortization of actuarial loss/(gain) and prior service cost 55 79 Net pension enhancement and curtailment/settlement cost 298 52 Net benefit cost 537 368 Pension Benefits - Non-U.S. Service cost 195 175 Interest cost 130 161 Expected return on plan assets (258) (222) Amortization of actuarial loss/(gain) and prior service cost 123 119 Net pension enhancement and curtailment/settlement cost 12 — Net benefit cost 202 233 Other Postretirement Benefits Service cost 49 45 Interest cost 56 70 Expected return on plan assets (5) (4) Amortization of actuarial loss/(gain) and prior service cost 8 12 Net benefit cost 108 123

Financial Instruments and Der_2

Financial Instruments and Derivatives (Tables)	3 Months Ended
	Mar. 31, 2021
Financial Instruments And Derivatives [Abstract]
Financial Instruments	The estimated fair value of financial instruments at March 31, 2021, and December 31, 2020, and the related hierarchy level for the fair value measurement is as follows: At March 31, 2021 (millions of dollars) Fair Value Level 1 Level 2 Level 3 Total Gross Assets Effect of Effect of Difference Net Assets Derivative assets (1) 1,338 264 — 1,602 (1,332) (62) — 208 Advances to/receivables from equity companies (2)(6) — 3,115 6,083 9,198 — — (233) 8,965 Other long-term financial assets (3) 1,157 — 1,046 2,203 — — 120 2,323 Liabilities Derivative liabilities (4) 1,389 329 — 1,718 (1,332) (113) — 273 Long-term debt (5) 45,594 111 4 45,709 — — (2,236) 43,473 Long-term obligations to equity companies (6) — — 3,567 3,567 — — (288) 3,279 Other long-term financial liabilities (7) — — 979 979 — — 55 1,034 At December 31, 2020 (millions of dollars) Fair Value Level 1 Level 2 Level 3 Total Gross Effect of Effect of Difference Net 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.
Schedule of Notional Amounts of Outstanding Derivative Positions	The net notional long/(short) position of derivative instruments at March 31, 2021, and December 31, 2020, was as follows: March 31, December 31, 2021 2020 (millions) Crude oil (barrels) 71 40 Petroleum products (barrels) (53) (46) Natural Gas (MMBTUs) (532) (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: Three Months Ended 2021 2020 (millions of dollars) Sales and other operating revenue (512) 1,236 Crude oil and product purchases 1 (352) Total (511) 884

Disclosures About Segments An_2

Disclosures About Segments And Related Information (Tables)	3 Months Ended
	Mar. 31, 2021
Segment Reporting, Measurement Disclosures [Abstract]
Disclosures About Segments And Related Information	Three Months Ended 2021 2020 Earnings (Loss) After Income Tax (millions of dollars) Upstream United States 363 (704) Non-U.S. 2,191 1,240 Downstream United States (113) (101) Non-U.S. (277) (510) Chemical United States 715 288 Non-U.S. 700 (144) Corporate and financing (849) (679) Corporate total 2,730 (610) Sales and Other Operating Revenue Upstream United States 1,885 1,777 Non-U.S. 3,094 2,567 Downstream United States 16,078 15,384 Non-U.S. 28,613 29,304 Chemical United States 3,091 2,296 Non-U.S. 4,887 3,800 Corporate and financing (96) 6 Corporate total 57,552 55,134 Intersegment Revenue Upstream United States 3,323 2,273 Non-U.S. 6,817 6,387 Downstream United States 3,953 3,952 Non-U.S. 5,381 5,124 Chemical United States 1,950 1,766 Non-U.S. 1,231 1,263 Corporate and financing 57 55
Geographic Sales And Other Operating Revenue	Geographic Three Months Ended Sales and Other Operating Revenue 2021 2020 (millions of dollars) United States 21,054 19,457 Non-U.S. 36,498 35,677 Total 57,552 55,134 Significant Non-U.S. revenue sources include: (1) Canada 4,258 3,823 Singapore 3,435 2,616 United Kingdom 2,943 3,691 France 2,782 2,589 Belgium 1,989 1,889 Italy 1,865 1,958 Australia 1,729 1,654 (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.

Restructuring Activities (Table

Restructuring Activities (Tables)	3 Months Ended
	Mar. 31, 2021
Restructuring and Related Activities [Abstract]
Summary of Reserves and Charges	The following table summarizes the reserves and charges related to the workforce reduction programs associated with the global review of staffing levels, which are recorded in “Accounts payable and accrued liabilities.” 2021 (millions of dollars) Balance at January 1 403 Additions/adjustments 39 Payments made (130) Balance at March 31 312

Miscellaneous Financial Infor_2

Miscellaneous Financial Information (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020USD ($)
Disclosure Text Block Supplement [Abstract]
Inventory write down charge, consolidated companies including noncontrolling interests - before tax	$ 2,777
Inventory write down charge, ExxonMobil share including equity companies - after tax	2,096
Goodwill impairment - before tax	611
Other impairment charges - before tax	$ 299

Litigation And Other Continge_3

Litigation And Other Contingencies (Narrative) (Details) - USD ($) $ in Millions	Mar. 09, 2017	Oct. 09, 2014	Oct. 24, 2011	Jun. 27, 2007
Nigeria Production Sharing Contract Litigation [Member] | Nigeria [Member]
Litigation And Other Contingencies [Line Items]
Percent interest in Erha block PSC			56.25%
Amount of award relating to excess lifting of crude oil			$ 1,800
Accrued interest relating to award for excess lifting of crude oil			$ 234
Expropriation Of Assets [Member] | Mobil Cerro Negro, Ltd. (MCN) [Member]
Litigation And Other Contingencies [Line Items]
Percentage ownership interest in Cerro Negro Project				41.67%
Cerro Negro award for breach of contractual obligations		$ 908
Award collected from Venezuela for Cerro Negro and La Ceiba Projects	$ 260
Annulled portion of award for Cerro Negro Project	$ 1,400

Litigation And Other Continge_4

Litigation And Other Contingencies (Schedule Of Guarantees) (Details) $ in Millions	Mar. 31, 2021USD ($)
Litigation And Other Contingencies [Line Items]
Guarantees	$ 6,889
Equity Company Obligations [Member]
Litigation And Other Contingencies [Line Items]
Guarantees	1,851
Other Third Party Obligations [Member]
Litigation And Other Contingencies [Line Items]
Guarantees	5,038
Debt Related Guarantees [Member]
Litigation And Other Contingencies [Line Items]
Guarantees	1,140
Debt Related Guarantees [Member] | Equity Company Obligations [Member]
Litigation And Other Contingencies [Line Items]
Guarantees	1,014
Debt Related Guarantees [Member] | Other Third Party Obligations [Member]
Litigation And Other Contingencies [Line Items]
Guarantees	126
Other Guarantees [Member]
Litigation And Other Contingencies [Line Items]
Guarantees	5,749
Other Guarantees [Member] | Equity Company Obligations [Member]
Litigation And Other Contingencies [Line Items]
Guarantees	837
Other Guarantees [Member] | Other Third Party Obligations [Member]
Litigation And Other Contingencies [Line Items]
Guarantees	$ 4,912

Other Comprehensive Income In_3

Other Comprehensive Income Information (Schedule Of Accumulated Other Comprehensive Income Information) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
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	$ 149	$ (5,649)
Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease [Abstract]
Current period change excluding amounts reclassified from accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	168	87
Amounts reclassified from accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	378	204
Other Comprehensive Income Loss Net Of Tax Period Change [Abstract]
Beginning Balance, Total	(16,705)
Ending Balance, Total	(16,090)
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)
Current period change excluding amounts reclassified from accumulated other comprehensive income, Cumulative Foreign Exchange Translation Adjustment	88	(5,113)
Adjustment for foreign exchange translation (gain)/loss included in net income	0	0
Total change in accumulated other comprehensive income, Cumulative Foreign Exchange Translation Adjustment	88	(5,113)
Ending Balance, Cumulative Foreign Exchange Translation Adjustment	(10,526)	(17,559)
Net investment hedge gain/(loss), net of taxes	191
Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease [Abstract]
Beginning Balance, Postretirement Benefits Reserves Adjustment	(6,091)	(7,047)
Current period change excluding amounts reclassified from accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	158	72
Amounts reclassified from accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	369	195
Total change in accumulated other comprehensive income, Postretirement Benefits Reserves Adjustment	527	267
Ending Balance, Postretirement Benefits Reserves Adjustment	(5,564)	(6,780)
Other Comprehensive Income Loss Net Of Tax Period Change [Abstract]
Beginning Balance, Total	(16,705)	(19,493)
Current period change excluding amounts reclassified from accumulated other comprehensive income, Total	246	(5,041)
Amounts reclassified from accumulated other comprehensive income, Total	369	195
Total change in accumulated other comprehensive income, Total	615	(4,846)
Ending Balance, Total	$ (16,090)	$ (24,339)

Other Comprehensive Income In_4

Other Comprehensive Income Information (Amounts Reclassified Out Of Acc Other Comp Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Comprehensive Income Information Before Tax [Abstract]
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)	$ (484)	$ (262)

Other Comprehensive Income In_5

Other Comprehensive Income Information (Schedule Of Income Tax (Expense)/Credit For Components Of Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Comprehensive Income Information Tax [Abstract]
Foreign exchange translation adjustment	$ (53)	$ 7
Postretirement benefits reserves adjustment (excluding amortization)	(58)	(62)
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs	(106)	(58)
Total	$ (217)	$ (113)

Earnings Per Share (Earnings Pe

Earnings Per Share (Earnings Per Share Computation) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings per common share
Net income (loss) attributable to ExxonMobil (millions of dollars)	$ 2,730	$ (610)
Weighted average number of common shares outstanding (millions of shares)	4,272	4,270
Earnings (Loss) per common share (dollars)	$ 0.64	$ (0.14)
Dividends paid per common share (dollars)	$ 0.87	$ 0.87

Pension And Other Postretirem_3

Pension And Other Postretirement Benefits (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Pension Benefits - U.S.
Service cost	$ 225	$ 235
Interest cost	139	177
Expected return on plan assets	(180)	(175)
Amortization of actuarial loss/(gain) and prior service cost	55	79
Net pension enhancement and curtailment/settlement cost	298	52
Net benefit cost	537	368
Pension Benefits - Non-U.S. [Member]
Service cost	195	175
Interest cost	130	161
Expected return on plan assets	(258)	(222)
Amortization of actuarial loss/(gain) and prior service cost	123	119
Net pension enhancement and curtailment/settlement cost	12	0
Net benefit cost	202	233
Other Postretirement Benefits [Member]
Service cost	49	45
Interest cost	56	70
Expected return on plan assets	(5)	(4)
Amortization of actuarial loss/(gain) and prior service cost	8	12
Net benefit cost	$ 108	$ 123

Financial Instruments and Der_3

Financial Instruments and Derivatives (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Financial Instruments And Derivatives [Abstract]
Initial margin collateral receivable	$ 447	$ 504
Net investment hedge, European business	$ 5,300

Financial Instruments (Details)

Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Total Gross Assets & Liabilities [Domain]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	$ 1,602	$ 1,441
Advances to/receivables from equity companies	9,198	9,179
Other long-term financial assets	2,203	2,179
Derivative liabilities	1,718	1,697
Long-term debt	45,709	50,392
Long-term obligations to equity companies	3,567	3,530
Other long-term financial liabilities	979	964
Net Carrying Value [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	208	153
Advances to/receivables from equity companies	8,965	8,812
Other long-term financial assets	2,323	2,304
Derivative liabilities	273	213
Long-term debt	43,473	45,502
Long-term obligations to equity companies	3,279	3,253
Other long-term financial liabilities	1,034	1,008
Effect Of Counterparty Netting [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	(1,332)	(1,282)
Derivative liabilities	(1,332)	(1,282)
Effect Of Collateral Netting [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	(62)	(6)
Derivative liabilities	(113)	(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	(233)	(367)
Other long-term financial assets	120	125
Long-term debt	(2,236)	(4,890)
Long-term obligations to equity companies	(288)	(277)
Other long-term financial liabilities	55	44
Level 1 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	1,338	1,247
Other long-term financial assets	1,157	1,235
Derivative liabilities	1,389	1,443
Long-term debt	45,594	50,263
Level 2 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Derivative assets	264	194
Advances to/receivables from equity companies	3,115	3,275
Derivative liabilities	329	254
Long-term debt	111	125
Level 3 [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Advances to/receivables from equity companies	6,083	5,904
Other long-term financial assets	1,046	944
Long-term debt	4	4
Long-term obligations to equity companies	3,567	3,530
Other long-term financial liabilities	$ 979	$ 964

Derivative Instrument Balance S

Derivative Instrument Balance Sheet (Details) bbl in Millions, MMBTU in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2021MMBTUbbl	Dec. 31, 2020MMBTUbbl
Crude Oil [Member] | Long [Member]
Net notional long / short position of derivative instruments bbl	71	40
Petroleum Products [Member] | Short [Member]
Net notional long / short position of derivative instruments bbl	53	46
Natural Gas [Member] | Short [Member]
Net notional long / short position of derivative instruments MMBtus | MMBTU	532	500

Derivative Instruments (Details

Derivative Instruments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Realized and Unrealized Before-Tax Gain / (Loss) on Derivative Instruments Recognized in the Consolidated Statement of Income
Sales and other operating revenue	$ 57,552	$ 55,134
Crude oil and product purchases	32,601	32,083
Not Designated as Hedging Instrument [Member]
Realized and Unrealized Before-Tax Gain / (Loss) on Derivative Instruments Recognized in the Consolidated Statement of Income
Sales and other operating revenue	(512)	1,236
Crude oil and product purchases	1	(352)
Total	$ (511)	$ 884

Disclosures About Segments An_3

Disclosures About Segments And Related Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Earnings (Loss) after income tax	$ 2,730	$ (610)
Sales and other operating revenue	57,552	55,134
Upstream United States [Member]
Segment Reporting Information [Line Items]
Earnings (Loss) after income tax	363	(704)
Sales and other operating revenue	1,885	1,777
Intersegment Revenue	3,323	2,273
Upstream Non-U.S. [Member]
Segment Reporting Information [Line Items]
Earnings (Loss) after income tax	2,191	1,240
Sales and other operating revenue	3,094	2,567
Intersegment Revenue	6,817	6,387
Downstream United States [Member]
Segment Reporting Information [Line Items]
Earnings (Loss) after income tax	(113)	(101)
Sales and other operating revenue	16,078	15,384
Intersegment Revenue	3,953	3,952
Downstream Non-U.S. [Member]
Segment Reporting Information [Line Items]
Earnings (Loss) after income tax	(277)	(510)
Sales and other operating revenue	28,613	29,304
Intersegment Revenue	5,381	5,124
Chemical United States [Member]
Segment Reporting Information [Line Items]
Earnings (Loss) after income tax	715	288
Sales and other operating revenue	3,091	2,296
Intersegment Revenue	1,950	1,766
Chemical Non-U.S. [Member]
Segment Reporting Information [Line Items]
Earnings (Loss) after income tax	700	(144)
Sales and other operating revenue	4,887	3,800
Intersegment Revenue	1,231	1,263
Corporate And Financing [Member]
Segment Reporting Information [Line Items]
Earnings (Loss) after income tax	(849)	(679)
Sales and other operating revenue	(96)	6
Intersegment Revenue	$ 57	$ 55

Disclosures About Segments An_4

Disclosures About Segments And Related Information (Schedule of Geographic Sales And Operating Revenue) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	$ 57,552	$ 55,134
U.S. [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	21,054	19,457
Non-U.S. [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	36,498	35,677
Canada [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	4,258	3,823
Singapore [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	3,435	2,616
United Kingdom [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	2,943	3,691
France [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	2,782	2,589
Belgium [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	1,989	1,889
Italy [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	1,865	1,958
Australia [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Sales and other operating revenue	$ 1,729	$ 1,654

Sale of United Kingdom Assets (

Sale of United Kingdom Assets (Narrative) (Details) - Disposal Group, Sale Approved but Not Closed [Member] - Non-Operated Upstream Assets in UK [Member] - Forecast [Member] $ in Billions	3 Months Ended
	Mar. 31, 2021USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Agreed sales price of non-operated assets in United Kingdom, subject to adjustment	$ 1
Estimated contingent payments	0.3
Minimum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Estimated total cash proceeds from divestment	0.7
Estimated 2021 cash proceeds from divestment	0.7
Maximum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Estimated total cash proceeds from divestment	1.2
Estimated 2021 cash proceeds from divestment	$ 0.8

Restructuring Activities (Narra

Restructuring Activities (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges, workforce reduction programs, before-tax	$ 39
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring charges, planned workforce reduction programs	200
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges, workforce reduction programs, before-tax	$ 39

Restructuring Activities (Summa

Restructuring Activities (Summary of Reserves and Charges) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021USD ($)
Restructuring Reserve [Roll Forward]
Balance at January 1, 2021, Workforce reduction program reserves and charges	$ 403
Additions/adjustments, Workforce reduction program reserves and charges	39
Payments made, Workforce reduction program reserves and charges	(130)
Balance at March 31, 2021, Workforce reduction program reserves and charges	$ 312