Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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Restructuring Actions - Roll Forward (Details) - USD ($) $ in Millions	3 Months Ended					9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Sep. 30, 2021
COVID-19 Pandemic
Restructuring Reserve Roll Forward
Incremental expense incurred					$ 58
Operational/Marketing Capability Restructuring
Restructuring Reserve Roll Forward
Incremental expense incurred						$ 107
Divestiture-Related Restrucutring
Restructuring Reserve Roll Forward
Accrued restructuring action balances, beginning balance			$ 24			24
Cash payments						(5)
Adjustments						(1)
Accrued restructuring actions balances, ending balance	$ 18			$ 24		18
Employee-Related \| COVID-19 Pandemic
Restructuring Reserve Roll Forward
Accrued restructuring action balances, beginning balance		$ 11	24			24
Cash payments			(4)
Adjustments			(9)
Accrued restructuring actions balances, ending balance			11	24
Employee-Related \| Operational/Marketing Capability Restructuring
Restructuring Reserve Roll Forward
Accrued restructuring action balances, beginning balance			101			101
Incremental expense incurred	50	$ 43	14	137		107
Cash payments						(94)
Adjustments						(8)
Accrued restructuring actions balances, ending balance	106			101		106
Employee-Related \| Divestiture-Related Restrucutring
Restructuring Reserve Roll Forward
Accrued restructuring action balances, beginning balance			15			15
Cash payments						(5)
Adjustments						(1)
Accrued restructuring actions balances, ending balance	9			15		9
Asset-Related and Other \| Divestiture-Related Restrucutring
Restructuring Reserve Roll Forward
Accrued restructuring action balances, beginning balance			$ 9			9
Cash payments						0
Adjustments						0
Accrued restructuring actions balances, ending balance	$ 9			$ 9		$ 9