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Derivative Instruments And Hedging Activities - Gains (Losses) Recognized in AOCI and Reclassified from AOCI on Derivatives (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Total, Amount of Gain/(Loss) Recognized in AOCI on Derivative, net of Tax | $ (364) | $ 32 | $ (494) | $ 106
Cash Flow Hedging Relationships, Amount of Gain/(Loss) Reclassified from AOCI into Income, net of Tax | (1) | 0 | (1) | (1)
Total, Amount of Gain/(Loss) Reclassified from AOCI into Income, net of Tax | (1) | 0 | (1) | (1)
Gain Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing) | 15 | 11 | 29 | 22
Net Investment Hedging |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net Investment Hedging Relationships, Amount of Gain/(Loss) Recognized in AOCI on Derivative, net of Tax | (364) | 32 | (494) | 106
Net investment hedges - reclassification of gains included in net income - Net of Tax | 0 | 0 | 0 | 0
Gain Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing) | 15 | 11 | 29 | 22
Cash Flow Hedging |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Cash Flow Hedging Relationships, Amount of Gain/(Loss) Recognized in AOCI on Derivative, net of Tax | 0 | 0 | 0 | 0
Cash Flow Hedging Relationships, Amount of Gain/(Loss) Reclassified from AOCI into Income, net of Tax | (1) | 0 | (1) | (1)
Gain Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing) | 0 | 0 | 0 | 0
Cross currency swaps | Net Investment Hedging |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net Investment Hedging Relationships, Amount of Gain/(Loss) Recognized in AOCI on Derivative, net of Tax | (277) | 24 | (365) | 75
Net investment hedges - reclassification of gains included in net income - Net of Tax | 0 | 0 | 0 | 0
Gain Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing) | 15 | 11 | 29 | 22
Long-term debt | Net Investment Hedging |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net Investment Hedging Relationships, Amount of Gain/(Loss) Recognized in AOCI on Derivative, net of Tax | (87) | 8 | (129) | 31
Net investment hedges - reclassification of gains included in net income - Net of Tax | 0 | 0 | 0 | 0
Gain Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing) | 0 | 0 | 0 | 0
Interest rate contracts | Cash Flow Hedging |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Cash Flow Hedging Relationships, Amount of Gain/(Loss) Recognized in AOCI on Derivative, net of Tax | 0 | 0 | 0 | 0
Cash Flow Hedging Relationships, Amount of Gain/(Loss) Reclassified from AOCI into Income, net of Tax | (1) | 0 | (1) | (1)
Gain Recognized in Income on Derivative (Amount Excluded from Effectiveness Testing) | $ 0 | $ 0 | $ 0 | $ 0

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- Definition Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow and net investment hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. 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