Other Financial Data - Schedule of Other Income (Expense) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other (Expense) Income
Foreign currency remeasurement	$ 4	$ 42
Financial instruments	(13)	(44)
Pension and other postretirement	6	4
Equity earnings	1	1
Disposal of businesses	0	25
Other income (expense)	$ (2)	28
Reclassification adjustment
Other (Expense) Income
Other income (expense)		(1)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease of net loss from discontinued operations		$ 1