Other Financial Data - Schedule of Other Income (Expense) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other (Expense) Income
Foreign currency remeasurement	$ 20	$ (19)	$ 11	$ 21
Pension and other postretirement	5	4	19	10
Equity Earnings	3	1	7	3
Extinguishment of debt	0	0	0	(7)
Gain from disposal of business	1	0	2	25
Financial Instruments and other	(19)	14	(32)	(33)
Other income (expense)	$ 10	0	$ 7	19
Reclassification adjustment
Other (Expense) Income
Other income (expense)		1		1
Decrease of net loss from discontinued operations		$ 1		$ 1