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INCOME TAXES (Tables)
 12 Months Ended
Dec. 31, 2025
Income Tax Disclosure [Abstract]  
Schedule of domestic and foreign components of income from continuing operations before domestic and foreign income taxes
The following summarizes domestic and foreign components of income from continuing operations before domestic and foreign income taxes for the years ended December 31:

millions202520242023
Domestic$1,265 $2,390 $2,530 
Foreign1,863 1,634 2,132 
Total income from continuing operations before income taxes
$3,128 $4,024 $4,662 
Schedule of income tax (expense) benefit for domestic and foreign income taxes on continuing operations
The following summarizes components of income tax (expense) benefit on continuing operations for the years ended December 31:

millions202520242023
Current
Federal$(307)$(775)$(539)
State and local— (28)(35)
Foreign(587)(620)(702)
Total current tax expense$(894)$(1,423)$(1,276)
Deferred
Federal(99)197 (34)
State and local(31)20 20 
Foreign3 48 (40)
Total deferred tax (expense) benefit$(127)$265 $(54)
Total income tax expense
Federal(406)(578)(573)
State and local(31)(8)(15)
Foreign(584)(572)(742)
Total income tax expense$(1,021)$(1,158)$(1,330)
Schedule of supplemental cash flow information
The following table represents production, property and other tax payments and interest paid related to continuing operations during the year ended December 31, 2025, 2024 and 2023, respectively:

millions202520242023
Production, property and other tax payments $1,079 $1,260 $1,120 
Interest paid (a)
$1,250 $1,052 $1,017 
(a)     Net of capitalized interest of $179 million, $156 million and $82 million, for the years 2025, 2024 and 2023, respectively.
The following summarizes income taxes paid (net of refunds received) on continuing operations for the years ended December 31:

millions202520242023
Federal$609 $405 $293 
State39 16 42 
Foreign
Algeria155 207 285 
Oman359 332 335 
Qatar73 78 78 
All other foreign1 2 7 
Total foreign588 619 705 
Income taxes paid, net of refunds received$1,236 $1,040 $1,040 
Schedule of reconciliation of the United States federal statutory income tax rate to Occidental's worldwide effective tax rate on income from continuing operations stated as a percentage of pre-tax income
The following reconciliation of the U.S. federal statutory income tax rate to the Company’s worldwide effective tax rate on income from continuing operations for the years ended December 31 is stated as both a percentage and amount of income from continuing operations before income taxes as required by the adoption of Accounting Standards Update 2023-09 in the fourth quarter of 2025:

millions except percentages202520242023
PercentageAmountPercentageAmountPercentageAmount
U.S. federal statutory tax rate21 %$657 21 %$845 21 %$979 
State and local income tax, net of federal income tax effect (a)
1 24 — 5 — 13 
Foreign tax effects
Algeria
Tax rate differential1 36 1 47 1 71 
Change in tax law or rate— — — — 1 65 
Nontaxable or nondeductible items1 23 1 20 2 84 
Others— 7 1 20 — (3)
Canada
Others(1)(16)— (7)(1)(54)
Oman
Tax rate differential7 201 5 203 4 209 
Others1 34 — 4 — (3)
Qatar
Tax rate differential1 33 1 28 1 37 
Others— (9)— 8 — (14)
United Arab Emirates
Tax rate differential (5)(143)(3)(105)(2)(94)
Other foreign jurisdictions1 30 — (5)— (11)
Effect of changes in tax laws or rates enacted in the current period— — — — — — 
Effect of cross-border tax laws— 10 — 1 — 4 
Tax credits(1)(15)(1)(21)— (22)
Changes in valuation allowance— 2 — 2 — — 
Nontaxable or nondeductible items1 16 1 29 — 20 
Changes in unrecognized tax benefits5 144 3 136 2 105 
Other adjustments— (13)(1)(52)(1)(56)
Worldwide effective tax rate33 %$1,021 29 %$1,158 28 %$1,330 
(a)     Texas and New Mexico contributed to the majority of the tax effect in this category.
Schedule of tax effects of temporary differences resulting in deferred income taxes
The following summarized the tax effects of temporary differences resulting in deferred income taxes as of December 31:

millions20252024
Deferred tax liabilities
Property, plant and equipment differences$(7,402)$(7,100)
Equity investments, partnerships and international subsidiaries(831)(633)
Gross long-term deferred tax liabilities$(8,233)$(7,733)
Deferred tax assets
Environmental reserves409 416 
Postretirement benefit accruals173 249 
Deferred compensation and benefits344 258 
Asset retirement obligations893 788 
Foreign tax credit carryforwards713 1,975 
Business credit carryforwards
60 54 
Net operating loss carryforward1,095 1,031 
Interest expense carryforward11 11 
All other685 539 
Gross long-term deferred tax assets4,383 5,321 
Valuation allowance(1,769)(2,962)
Net long-term deferred tax assets$2,614 $2,359 
Total deferred income tax liability, net$(5,619)$(5,374)
Less: foreign deferred tax asset in long-term receivables and other assets, net(17)(20)
Total deferred income tax liability (a)
$(5,636)$(5,394)
(a) The deferred income tax assets and liabilities associated with discontinued operations were not classified as held for sale because they will be realized upon the sale of OxyChem.
Schedule of reconciliation of the beginning and ending amount of unrecognized tax benefits
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:

millions202520242023
Balance as of January 1$1,951 $1,951 $2,010 
Increases related to prior-year positions— — — 
Increases related to current-year positions1 — — 
Settlements— — — 
Reductions for tax positions of prior years(8)— (59)
Balance as of December 31$1,944 $1,951 $1,951