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Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Schedule of Income before Income Tax, Domestic and Foreign Income (loss) before income taxes were:
Year Ended December 31,
(In millions)202220212020
United States$3,037 $637 $(1,319)
Foreign742 367 (146)
Total$3,779 $1,004 $(1,465)
Schedule of Components of Income Tax Expense (Benefit) Income tax provisions (benefits) were:
Year Ended December 31,
202220212020
(In millions)CurrentDeferredTotalCurrentDeferredTotalCurrentDeferredTotal
Federal$— $(46)$(46)$— $— $— $(5)$— $(5)
State and local12 52 64 4 1 5 (2)(8)(10)
Foreign172 (23)149 81 (28)53 15 (14)1 
Total$184 $(17)$167 $85 $(27)$58 $8 $(22)$(14)
Schedule of Effective Income Tax Rate Reconciliation A reconciliation of the federal statutory income tax rate applied to income (loss) before income taxes to the provision (benefit) for income taxes follows:
Year Ended December 31,
(In millions)202220212020
Total pre-tax income (loss) $3,779 $1,004 $(1,465)
Total income tax provision (benefit)$167 $58 $(14)
Effective income tax rate4 %6 %1 %
Income taxes at the statutory tax rate$793 $211 $(308)
Adjustments to valuation allowances(691)(166)239 
Effects of foreign operations2 (13)23 
State income taxes, net of federal benefit62 23 6 
Tax law change— (2)— 
Other federal tax effects1 5 26 
Income tax provision (benefit) $167 $58 $(14)
Schedule of Deferred Tax Assets and Liabilities Deferred tax assets and liabilities resulted from the following:
 Year Ended December 31,
(In millions)20222021
Deferred tax assets:
Employee benefits$56 $66 
Operating loss carryforwards1,189 1,541 
Foreign tax credits602 611 
Other65 52 
Subtotal1,912 2,270 
Valuation allowance(89)(780)
Total deferred tax assets1,823 1,490 
Deferred tax liabilities:
Property, plant and equipment1,850 1,544 
Other100 82 
Total deferred tax liabilities1,950 1,626 
Net deferred tax liabilities$127 $136 
Net Deferred Tax Assets Liabilities Table Net deferred tax assets and liabilities were classified in the consolidated balance sheets as follows:
December 31,
(In millions)20222021
Assets:
Other noncurrent assets$40 $— 
Liabilities:
Noncurrent deferred tax liabilities167 136 
Net deferred tax liabilities$127 $136 
Income Tax Returns Remaining Subject To Examination Table As of December 31, 2022, our income tax returns remain subject to examination in the following major tax jurisdictions for the tax years indicated:
United States(a)
2016 - 2021
Equatorial Guinea2007 - 2021
(a)Includes federal and state jurisdictions.
Summary Of Activity In Unrecognized Tax Benefits Table The following table summarizes the activity in unrecognized tax benefits:
(In millions)202220212020
Beginning balance$10 $8 $13 
Additions for tax positions of prior years1 2 — 
Reductions for tax positions of prior years— — (5)
Settlements(11)— — 
Ending balance$— $10 $8