Financial Instruments - Derivative Instruments Designated as Cash Flow and Net Investment Hedging Instruments (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in OCI on Derivative (Effective Portion)	$ 78	$ 53
Amount of (Loss) Gain Reclassified from Accumulated OCI into Income (Effective Portion)	(2)	2
Foreign currency contracts | Derivatives in Cash Flow Hedging Relationships [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in OCI on Derivative (Effective Portion)	4	1
Cross Currency Swaps | Derivatives in Net Investment Hedging Relationships [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in OCI on Derivative (Effective Portion)	9	21
Forward Contracts | Cost of goods sold | Derivatives in Cash Flow Hedging Relationships [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Reclassified from Accumulated OCI into Income (Effective Portion)	(2)	2
2024 Euro Notes | Derivatives in Net Investment Hedging Relationships [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in OCI on Derivative (Effective Portion)	20	10
Senior Notes Maturing 2021 through 2026 | Derivatives in Net Investment Hedging Relationships [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in OCI on Derivative (Effective Portion)	$ 45	$ 21