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Income Taxes - Difference Between Effective Tax Rate (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]      
Federal income tax at U.S. statutory rate $ 50 $ (48) $ (584)
Foreign income tax rate differential 1 (9) (30)
Goodwill impairment     271
Reduction of FTC carryforwards     184
Tax Benefit from CARES Act     (83)
Change in deferred tax valuation allowance 24 31 (83)
Nondeductible expenses 18 17 44
Foreign dividends, net of foreign tax credits 27 54 28
Change in uncertain tax positions 4 13 20
State income taxes - net of federal benefit   (1) (4)
Income tax credits (5) (11)  
Other (36) (31) (5)
Total income tax provision $ 83 $ 15 $ (242)