Financial Instruments - Derivative Instruments Designated Net Investment Hedging Instruments (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Accumulated Gain (Loss), Net, Cash Flow Hedge And Investment Hedge, Parent
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivative and Non-Derivative (Effective Portion)	$ 14	$ (65)	$ (200)	$ (12)
Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	0	1	0	1
Commodity contracts | Gains (Losses)  on Derivatives Qualifying as Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivative and Non-Derivative (Effective Portion)	0	1	(1)	2
Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	0	1	1	1
Interest rate swaps | Gains (Losses)  on Derivatives Qualifying as Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivative and Non-Derivative (Effective Portion)	0	0	0	0
Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	0	0	(1)	0
Cross Currency Interest Rate Contract | Accumulated Gain (Loss), Net, Investment Hedge, Parent
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivative and Non-Derivative (Effective Portion)	11	(38)	(115)	(2)
Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	0	0	0	0
2026 Euro Notes | Accumulated Gain (Loss), Net, Investment Hedge, Parent
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivative and Non-Derivative (Effective Portion)	3	(28)	(84)	(8)
Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	$ 0	$ 0	0	0
Foreign currency contracts | Gains (Losses)  on Derivatives Qualifying as Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivative and Non-Derivative (Effective Portion)			0	(7)
Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)			0	0
2024 Euro Notes | Accumulated Gain (Loss), Net, Investment Hedge, Parent
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivative and Non-Derivative (Effective Portion)			0	3
Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)			$ 0	$ 0