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Financial Instruments - Derivative Instruments Designated as Cash Flow and Net Investment Hedging Instruments (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in OCI on Derivative (Effective Portion)	$ (20)	$ (58)	$ 58	$ 0
Amount of (Loss) Gain Reclassified from Accumulated OCI into Income (Effective Portion)	(2)	1	(4)	3
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)	2	(3)	6	(2)
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)	(3)	(20)	6	6
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)	1	(4)	3
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)	(6)	(11)	14	(1)
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)	$ (13)	$ (24)	$ 32	$ (3)

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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-Publisher FASB
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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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