Restructuring and Other Charges - Activity and Reserve Balances for Restructuring Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Restructuring Reserve [Roll Forward]
Restructuring reserve beginning balance			$ 19
Cash payments			(12)
Restructuring charges	$ 6	$ 5	8	$ 14
Other			(5)
Restructuring reserve ending balance	10		10
Settlement charges	(3)	(3)	(4)	(6)
Accelerated depreciation	3		5
Pension benefits
Restructuring Reserve [Roll Forward]
Restructuring charges	3	3	4	6
Settlement charges	(3)	$ (3)	(4)	$ (6)
Layoff costs
Restructuring Reserve [Roll Forward]
Restructuring reserve beginning balance			17
Cash payments			(8)
Restructuring charges			3
Other			(4)
Restructuring reserve ending balance	8		8
Layoff costs | Pension benefits
Restructuring Reserve [Roll Forward]
Settlement charges			(4)
Other exit costs
Restructuring Reserve [Roll Forward]
Restructuring reserve beginning balance			2
Cash payments			(4)
Restructuring charges			5
Other			(1)
Restructuring reserve ending balance	$ 2		2
Accelerated depreciation			$ 1