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Derivative Instruments And Hedging Activities - Cumulative Amount of Unrecognized Hedge Losses Recorded in AOCI (Detail) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Derivative [Line Items]    
Cumulative Gains (Losses), net of tax $ (638) $ (567)
Designated as Hedging Instrument    
Derivative [Line Items]    
Cumulative Gains (Losses), net of tax 233 9
Net Investment Hedging | Designated as Hedging Instrument    
Derivative [Line Items]    
Cumulative Gains (Losses), net of tax 275 53
Net Investment Hedging | Currency Swap | Designated as Hedging Instrument    
Derivative [Line Items]    
Cumulative Gains (Losses), net of tax 178 21
Net Investment Hedging | Foreign Exchange Forward | Designated as Hedging Instrument    
Derivative [Line Items]    
Cumulative Gains (Losses), net of tax 29 29
Net Investment Hedging | Long-term debt | Designated as Hedging Instrument    
Derivative [Line Items]    
Cumulative Gains (Losses), net of tax 68 3
Cash Flow Hedging | Designated as Hedging Instrument    
Derivative [Line Items]    
Cumulative Gains (Losses), net of tax (42) (44)
Cash Flow Hedging | Currency Swap | Designated as Hedging Instrument    
Derivative [Line Items]    
Cumulative Gains (Losses), net of tax 1 1
Cash Flow Hedging | Interest Rate Contract [Member] | Designated as Hedging Instrument    
Derivative [Line Items]    
Cumulative Gains (Losses), net of tax $ (43) $ (45)