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Income Taxes - Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |  |
Balance of unrecognized tax benefits at beginning of year | $ 123 | $ 112 | $ 130
Gross amount of increases in unrecognized tax benefits as a result of positions taken during a prior year | 44 | 1 | 1
Gross amount of decreases in unrecognized tax benefits as a result of positions taken during a prior year | (11) | 0 | (18)
Gross amount of increases in unrecognized tax benefits as a result of positions taken during the current year | 15 | 19 | 31
The amounts of decreases in unrecognized benefits relating to settlements with taxing authorities | (5) | (3) | (27)
Reduction in unrecognized tax benefits due to the lapse of applicable statute of limitation | (8) | (6) | (5)
Balance of unrecognized tax benefits at end of year | 158 | 123 | 112
Income Taxes Disclosure [Line Items] |  |  |
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions | 11 | 0 | 18
Gross amount of increases in unrecognized tax benefits as a result of positions taken during a prior year | 44 | 1 | 1
Other Current Liabilities [Member] |  |  |
Income Taxes Disclosure [Line Items] |  |  |
Accrued interest and penalties | 0 | 0 | 4
Other Current Liabilities [Member] |  |  |
Income Taxes Disclosure [Line Items] |  |  |
Unrecognized tax benefits that would impact effective tax rate | $ 0 | $ 0 | $ 14

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 217 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-217 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10B -Publisher FASB -URI https://asc.fasb.org/1943274/2147482525/740-10-45-10B + Details
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