Other Financial Data - Schedule of Other Income (Expense) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other (Expense) Income
Foreign currency remeasurement	$ (13)	$ (2)	$ (9)	$ 40
Pension and other postretirement	8	2	14	6
Equity earnings	3	1	4	2
Extinguishment of debt	0	(7)	0	(7)
Disposal of businesses	1	0	1	25
Financial instruments and other	0	(3)	(13)	(47)
Other income (expense)	(1)	(9)	(3)	19
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other income (expense)	$ (1)	(9)	$ (3)	19
Reclassification adjustment
Other (Expense) Income
Other income (expense)		1		0
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease of net loss from discontinued operations		1		0
Other income (expense)		$ 1		$ 0