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Income Taxes - Difference Between Effective Tax Rate (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income Tax Disclosure [Abstract] |  |  |
Federal income tax at U.S. statutory rate | $ 175 | $ 129 | $ 50
Foreign income tax rate differential |  | 3 | 1
Change in deferred tax valuation allowance | (64) | (564) | 24
Nondeductible expenses | 47 | 18 | 18
Foreign inclusions and FDII, net of foreign tax credits | (36) | 5 | (4)
Change in uncertain tax positions | 3 | 12 | 4
Withholding taxes | 47 | 30 | 31
Income tax credits | (6) | (8) | (5)
Other | 30 | 2 | (36)
Total income tax provision (benefit) | $ 196 | $ (373) | $ 83

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