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Restructuring and Impairment Charges - Other Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Restructuring and impairment charges
Restructuring/impairment charges	$ 4	$ 11	$ 374	$ 25
Restructuring charges	4		14
Cost Smart Cost of Sales and SG&A Program
Restructuring and impairment charges
Restructuring charges	4		14
Cost Smart Cost of Sales and SG&A Program \| Employee-related severance costs
Restructuring and impairment charges
Restructuring charges			1
Cost Smart Cost of Sales Program
Restructuring and impairment charges
Restructuring/impairment charges		6		15
Restructuring charges		6		15
Cost Smart Cost of Sales Program \| Accelerated depreciation
Restructuring and impairment charges
Restructuring charges		1
Cost Smart Cost of Sales Program, Production facility closure, Australia \| Asset write-off
Restructuring and impairment charges
Restructuring charges		3		6
Cost Smart Cost of Sales Program, Production facility closure, Australia \| Accelerated depreciation
Restructuring and impairment charges
Restructuring charges				1
Cost Smart Cost of Sales Program, Production facility closure, Australia \| Other restructuring costs
Restructuring and impairment charges
Restructuring charges		1		2
Cost Smart Cost of Sales Program, Production facility closure, Stockton, California
Restructuring and impairment charges
Gain on the sale of land and building	5		5
Cost Smart Cost of Sales Program, North America
Restructuring and impairment charges
Restructuring charges	5		8
Cost Smart Cost of Sales Program, North America \| Accelerated depreciation
Restructuring and impairment charges
Restructuring charges				4
Cost Smart Cost of Sales Program, North America \| Employee-related severance costs
Restructuring and impairment charges
Restructuring charges		1		1
Cost Smart Cost of Sales Program, North America \| Other restructuring costs
Restructuring and impairment charges
Restructuring charges				1
Cost Smart SG&A Program
Restructuring and impairment charges
Restructuring/impairment charges		5		10
Restructuring charges		5		10
Cost Smart SG&A Program \| Employee-related and other costs, including professional services
Restructuring and impairment charges
Restructuring charges	$ 4		9
Cost Smart SG&A Program, North America
Restructuring and impairment charges
Restructuring charges				10
Cost Smart SG&A Program, North America \| Other restructuring costs including professional services
Restructuring and impairment charges
Restructuring charges		$ 5		8
Cost Smart SG&A Program, North America \| Employee-related severance costs
Restructuring and impairment charges
Restructuring charges				$ 2
South America joint venture restructuring
Restructuring and impairment charges
Restructuring charges			2
South America joint venture restructuring \| Employee-related severance costs
Restructuring and impairment charges
Restructuring charges			$ 1