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		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Derivatives designated as hedges
Derivative Instruments Gain Loss [Line Items]
Gain (Loss) Recognized in Income	$ (80)	$ 24	$ (196)	$ 102
Derivatives designated as hedges | Cross currency interest rate swaps
Derivative Instruments Gain Loss [Line Items]
Gain (Loss) Recognized in Income	$ (52)	$ 38	$ (146)	$ 132
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	$ (22)	$ (22)	$ (44)	$ (44)
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	$ (7)	$ 4	$ (10)	$ 7
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Total Revenue	Total Revenue	Total Revenue	Total Revenue
Derivatives designated as hedges | Foreign exchange contracts
Derivative Instruments Gain Loss [Line Items]
Gain (Loss) Recognized in Income	$ 2	$ 4	$ 2	$ 7
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 exchange contracts
Derivative Instruments Gain Loss [Line Items]
Gain (Loss) Recognized in Income	$ (1)		$ 2
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 exchange contracts
Derivative Instruments Gain Loss [Line Items]
Gain (Loss) Recognized in Income	$ 18	$ (27)	$ 23	$ (26)
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