v3.25.3
Derivative Instruments and Hedging Activities - Effect of Derivative Instruments Designated as Cash Flow Hedges and Not Designated as Hedges on Consolidated Statement of Income (Detail) - Cash Flow Hedging - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Derivatives designated as hedges        
Derivative Instruments Gain Loss [Line Items]        
Gain (Loss) Recognized in Income $ (59) $ 174 $ 369 $ (22)
Derivatives designated as hedges | Cross currency interest rate swaps        
Derivative Instruments Gain Loss [Line Items]        
Gain (Loss) Recognized in Income $ (52) $ 193 $ 415 $ 47
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Cost of services and sales Cost of services and sales Cost of services and sales Cost of services and sales
Derivatives designated as hedges | Cross currency interest rate swaps        
Derivative Instruments Gain Loss [Line Items]        
Gain (Loss) Recognized in Income $ (17) $ (21) $ (55) $ (65)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Interest Interest Interest Interest
Derivatives designated as hedges | Commodity contracts        
Derivative Instruments Gain Loss [Line Items]        
Gain (Loss) Recognized in Income $ 0 $ 0 $ 0 $ (10)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Total Revenue Total Revenue Total Revenue Total Revenue
Derivatives designated as hedges | Foreign currency forward contracts        
Derivative Instruments Gain Loss [Line Items]        
Gain (Loss) Recognized in Income $ 3 $ 10 $ 2 $ 12
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Cost of services and sales Cost of services and sales Cost of services and sales Cost of services and sales
Derivatives designated as hedges | Foreign currency forward contracts        
Derivative Instruments Gain Loss [Line Items]        
Gain (Loss) Recognized in Income $ 7 $ (8) $ 7 $ (6)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Total Revenue Total Revenue Total Revenue Total Revenue
Derivatives not designated as hedges | Foreign currency forward contracts        
Derivative Instruments Gain Loss [Line Items]        
Gain (Loss) Recognized in Income $ (22) $ (13) $ 20 $ 10
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Cost of services and sales Cost of services and sales Cost of services and sales Cost of services and sales