Restructuring and Impairment Charges - Other Charges (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Restructuring and impairment charges
Restructuring/impairment charges	$ 370	$ 14
Asset impairment	360
Restructuring charges	10
Cost Smart Cost of Sales Program
Restructuring and impairment charges
Restructuring/impairment charges		9
Restructuring charges	3	9
Cost Smart Cost of Sales Program, Production facility closure, Australia
Restructuring and impairment charges
Restructuring charges		5
Cost Smart Cost of Sales Program, Production facility closure, Australia \| Asset write-off
Restructuring and impairment charges
Restructuring charges		3
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
Cost Smart Cost of Sales Program, North America
Restructuring and impairment charges
Restructuring charges		4
Cost Smart Cost of Sales Program, North America \| Accelerated depreciation
Restructuring and impairment charges
Restructuring charges		3
Cost Smart Cost of Sales Program, North America \| Reorganization of supply chain and opening of new warehouses
Restructuring and impairment charges
Restructuring charges	2
Cost Smart Cost of Sales Program, North America \| Professional Services
Restructuring and impairment charges
Restructuring charges		1
Cost Smart SG&A Program
Restructuring and impairment charges
Restructuring/impairment charges		5
Restructuring charges		5
Cost Smart SG&A Program \| Other restructuring costs including professional services
Restructuring and impairment charges
Restructuring charges	$ 5	3
Cost Smart SG&A Program \| Employee-related severance costs
Restructuring and impairment charges
Restructuring charges		$ 2

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of restructuring charges, remediation cost, and asset impairment loss.

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