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Derivative Instruments And Hedging Activities - Summary of Net Gain (Loss) on Interest Rate Swaps Designated in Fair Value Hedge (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] |  |  |  |
Interest expense, net | $ (61) | $ (63) | $ (122) | $ (125)
Designated as Hedging Instrument | Interest Rate Swap | Net interest settlements and accruals on interest rate swaps |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net interest settlements and accruals on interest rate swaps | (15) | (24) | (33) | (49)
Designated as Hedging Instrument | Interest Rate Swap | Interest Expense |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Fair value changes on interest rate swaps | 25 | 7 | 62 | (22)
Fair value changes on hedged debt | $ (25) | $ (7) | $ (62) | $ 22

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