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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 | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Interest expense, net | $ (58) | $ (60) | $ (180) | $ (185)
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) | (25) | (48) | (74)
Designated as Hedging Instrument | Interest Rate Swap | Interest Expense |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Fair value changes on interest rate swaps | 13 | 79 | 75 | 57
Fair value changes on hedged debt | $ (13) | $ (79) | $ (75) | $ (57)

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