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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2024
Income Tax Disclosure [Abstract]  
Income Taxes Charged to Income (Loss)
Components of income tax provision (benefit) were:
Millions of Dollars
202420232022
Income Taxes
Federal
Current$629 1,054 1,263 
Deferred247 825 1,629 
Foreign
Current3,249 2,931 5,813 
Deferred71 254 387 
State and local
Current182 202 386 
Deferred49 65 70 
Total tax provision (benefit)$4,427 5,331 9,548 
Components of Deferred Tax Liabilities and Assets
Deferred income taxes reflect the net tax effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for tax purposes. Major components of deferred tax liabilities and assets at December 31 were:
Millions of Dollars
20242023
Deferred Tax Liabilities
PP&E and intangibles$15,609 11,992 
Inventory91 46 
Other155 216 
Total deferred tax liabilities15,855 12,254 
Deferred Tax Assets
Benefit plan accruals432 413 
Asset retirement obligations and accrued environmental costs2,799 2,608 
Investments in joint ventures2,269 2,133 
Other financial accruals and deferrals497 448 
Loss and credit carryforwards4,910 5,629 
Other187 121 
Total deferred tax assets11,094 11,352 
Less: valuation allowance(6,435)(7,656)
Total deferred tax assets net of valuation allowance4,659 3,696 
Net deferred tax liabilities$11,196 8,558 
Reconciliation of Deferred Tax Asset Valuation Allowance
The following table shows a reconciliation of the beginning and ending deferred tax asset valuation allowance for 2024, 2023 and 2022:
Millions of Dollars
202420232022
Balance at January 1$7,656 8,049 8,342 
Charged to expense (benefit)(409)(2)
Other*(812)(391)(298)
Balance at December 31
$6,435 7,656 8,049 
*Represents changes due to deferred tax assets that have no impact to our effective tax rate, acquisitions/dispositions/revisions and the effect of translating foreign financial statements.
Schedule of Unrecognized Tax Benefits Roll Forward
The following table shows a reconciliation of the beginning and ending unrecognized tax benefits for 2024, 2023 and 2022:
Millions of Dollars
202420232022
Balance at January 1$387 710 1,345 
Additions based on tax positions related to the current year3 
Additions for tax positions of prior years127 
Reductions for tax positions of prior years (9)(62)
Settlements(121)(96)(510)
Lapse of statute(19)(224)(75)
Balance at December 31
$377 387 710 
Effective Income Tax Rate Reconciliation
The amounts of U.S. and foreign income (loss) before income taxes, with a reconciliation of tax at the federal statutory rate to the provision for income taxes, were:
Millions of DollarsPercent of Pre-Tax Income (Loss)
202420232022202420232022
Income (loss) before income taxes
United States$6,731 9,472 16,739 49.2 %58.2 59.3 
Foreign6,941 6,816 11,489 50.8 41.8 40.7 
$13,672 16,288 28,228 100.0 %100.0 100.0 
Federal statutory income tax$2,871 3,421 5,928 21.0 %21.0 21.0 
Non-U.S. effective tax rates1,822 2,063 3,866 13.3 12.7 13.7 
Recovery of outside basis(5)(4)(30) — (0.1)
Adjustment to tax reserves(57)(317)(551)(0.4)(1.9)(2.0)
Adjustment to valuation allowance(409)(2)(3.0)— — 
State income tax187 214 405 1.4 1.3 1.4 
Other18 (44)(75)0.1 (0.3)(0.2)
Total$4,427 5,331 9,548 32.4 %32.7 33.8