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Fair Value Measurements and Financial Instruments - Notional Amounts of Outstanding Derivative Instruments (Detail) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
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Interest rate swaps |  |
Derivative [Line Items] |  |
Notional amount | $ 26,071 | $ 26,071
Cross currency swaps |  |
Derivative [Line Items] |  |
Notional amount | 34,138 | 34,976
Foreign exchange forwards |  |
Derivative [Line Items] |  |
Notional amount | $ 980 | $ 920

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