Revenue from Contracts with Customers - Summary of Disaggregation of Revenues by Major Revenue Streams (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021		Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Total revenue	$ 3,982		$ 4,357
Sale of Goods [Member]
Disaggregation of Revenue [Line Items]
Total revenue	3,463		3,655
Licensing Arrangements [Member]
Disaggregation of Revenue [Line Items]
Total revenue	49		41
Distribution [Member]
Disaggregation of Revenue [Line Items]
Total revenue	308		434
Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	162		227
International Markets [Member]
Disaggregation of Revenue [Line Items]
Total revenue	490		565
International Markets [Member] | Sale of Goods [Member]
Disaggregation of Revenue [Line Items]
Total revenue	440		482
International Markets [Member] | Licensing Arrangements [Member]
Disaggregation of Revenue [Line Items]
Total revenue	3		3
International Markets [Member] | Distribution [Member]
Disaggregation of Revenue [Line Items]
Total revenue	19		6
International Markets [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	28		74
Other activities [Member]
Disaggregation of Revenue [Line Items]
Total revenue	289		307
Other activities [Member] | Sale of Goods [Member]
Disaggregation of Revenue [Line Items]
Total revenue	177		177
Other activities [Member] | Licensing Arrangements [Member]
Disaggregation of Revenue [Line Items]
Total revenue	1		1
Other activities [Member] | Distribution [Member]
Disaggregation of Revenue [Line Items]
Total revenue	0
Other activities [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	111		129
North America [Member]
Disaggregation of Revenue [Line Items]
Total revenue	1,989		2,082
North America [Member] | Sale of Goods [Member]
Disaggregation of Revenue [Line Items]
Total revenue	1,668		1,625
North America [Member] | Licensing Arrangements [Member]
Disaggregation of Revenue [Line Items]
Total revenue	32		25
North America [Member] | Distribution [Member]
Disaggregation of Revenue [Line Items]
Total revenue	289		426
North America [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue		[1]	6
Europe [Member]
Disaggregation of Revenue [Line Items]
Total revenue	1,214		1,402
Europe [Member] | Sale of Goods [Member]
Disaggregation of Revenue [Line Items]
Total revenue	1,178		1,370
Europe [Member] | Licensing Arrangements [Member]
Disaggregation of Revenue [Line Items]
Total revenue	14		12
Europe [Member] | Distribution [Member]
Disaggregation of Revenue [Line Items]
Total revenue		[1]	2
Europe [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Total revenue	$ 22		$ 19

[1] Represents an amount less than $1 million.