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Financial Instruments and Fair Value Measurements - Summary of Activity in Interest Rate Contracts (Detail) - Interest Rate Contracts [Member] - Cash Flow Hedges [Member] - Designated As Hedging Instrument [Member] - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Derivative [Line Items]    
Notional amounts at January 1 $ 425 $ 280
New contracts 959 464
Matured, expired or settled contracts (425) (319)
Notional amounts at March 31 959 425
CAD    
Derivative [Line Items]    
Notional amounts at January 1 0 0
New contracts 72 139
Matured, expired or settled contracts 0 (139)
Notional amounts at March 31 72 0
EUR    
Derivative [Line Items]    
Notional amounts at January 1 0  
New contracts 272  
Matured, expired or settled contracts 0  
Notional amounts at March 31 272  
JPY    
Derivative [Line Items]    
Notional amounts at January 1 0  
New contracts 190  
Matured, expired or settled contracts 0  
Notional amounts at March 31 190  
USD    
Derivative [Line Items]    
Notional amounts at January 1 425 280
New contracts 425 325
Matured, expired or settled contracts (425) (180)
Notional amounts at March 31 $ 425 $ 425