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Income Taxes - Schedule of Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Schedule Of Unrecognized Tax Benefits [Line Items] |  |  |
Balance at the beginning of the year | $ 651 | $ 638 | $ 672
Increase (decrease) related to prior year tax positions, net | 109 | (1) | (46)
Increase related to current year tax positions | 53 | 15 | 42
Decrease related to settlements with tax authorities and lapse of applicable statutes of limitations | (395) | (15) | (31)
Other | 29 | 14 | 1
Balance at the end of the year | $ 449 | $ 651 | $ 638

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