Restructuring and Other Charges - Activity and Reserve Balances for Restructuring Charges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Restructuring Reserve [Roll Forward]
Restructuring reserve beginning balance			$ 8
Cash payments			(4)
Restructuring charges	$ 4	$ 4	8	$ 12
Other			(6)
Restructuring reserve ending balance	6		6
Pension plan settlements	(2)	(3)	(5)	(7)
Accelerated depreciation	1	1	3	6
Pension benefits
Restructuring Reserve [Roll Forward]
Pension plan settlements	(2)	$ (3)	(5)	(7)
US | Pension benefits
Restructuring Reserve [Roll Forward]
Pension plan settlements				$ (7)
Layoff costs
Restructuring Reserve [Roll Forward]
Restructuring reserve beginning balance			6
Cash payments			(2)
Restructuring charges			5
Other			(5)
Restructuring reserve ending balance	4		4
Other exit costs
Restructuring Reserve [Roll Forward]
Restructuring reserve beginning balance			2
Cash payments			(2)
Restructuring charges			3
Other			(1)
Restructuring reserve ending balance	$ 2		2
Accelerated depreciation			$ 1