Other Financial Data - Schedule of Other Income (Expense) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other (Expense) Income
Extinguishment of debt	$ (7)	$ 0	$ (7)	$ 0
Financial instruments	(4)	(13)	(47)	(12)
Foreign currency remeasurement	(2)	11	40	0
Pension and other postretirement	2	5	6	9
Equity earnings	1	1	2	2
Disposal of businesses	0	2	25	7
Other income (expense)	$ (10)	$ 6	$ 19	$ 6

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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