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Income And Other Taxes (Reconciliation Between Income Tax Expense And Theoretical U.S. Tax) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income And Other Taxes [Abstract] |  |  |
United States income (loss) before income taxes | $ 12,258 | $ 14,786 | $ 28,281
Non-U.S. income (loss) before income taxes | 36,615 | 37,997 | 49,472
Income (loss) before income taxes | 48,873 | 52,783 | 77,753
Theoretical tax | 10,263 | 11,084 | 16,328
Effect of equity method of accounting | (1,301) | (1,341) | (2,407)
Non-U.S. taxes in excess of/(less than) theoretical U.S. tax | 4,986 | 5,888 | 6,423
State taxes, net of federal tax benefit | 314 | 57 | 601
Other | (452) | (259) | (769)
Total income tax expense (benefit) | 13,810 | 15,429 | 20,176
ExxonMobil share of equity company income taxes | 3,197 | 3,058 | 7,594
Total income tax expense (credit) | 17,007 | 18,487 | 27,770
Net income (loss) including noncontrolling interests | 35,063 | 37,354 | 57,577
Total income (loss) before taxes | $ 52,070 | $ 55,841 | $ 85,347
Effective income tax rate | 33.00% | 33.00% | 33.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% | 21.00%
Effective Tax Rate [Line Items] |  |  |
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability | $ (28) | $ 24 | $ 30
United States |  |  |
Income And Other Taxes [Abstract] |  |  |
Total income tax expense (benefit) | 2,382 | 2,837 | 5,644
Non-U.S. |  |  |
Income And Other Taxes [Abstract] |  |  |
Total income tax expense (benefit) | $ 11,428 | 12,592 | 14,532
Effective Tax Rate [Line Items] |  |  |
European tax impact |  | $ 115 | $ 1,825

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- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-10A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 + Details
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