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Restructuring Costs - Rollforward of Liability Associated with Cash-based Charges (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Restructuring Cost and Reserve [Line Items]
Charges incurred	$ 56		$ 0	$ 62	$ 0
Transformation Program [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		$ 0		1
Charges incurred		2		13
Cash payments		(1)		(10)
Ending Balance	4	1		4
Transformation Program [Member] \| Real Estate Rationalization [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred				12
Cash payments				(8)
Ending Balance	4			4
Transformation Program [Member] \| Other [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		0		1
Charges incurred		2
Cash payments		(1)		(1)
Ending Balance	$ 0	$ 1		0
Transformation Program [Member] \| Process optimization [Member]
Restructuring Cost and Reserve [Line Items]
Charges incurred				1
Cash payments				$ (1)