Other Financial Data - Schedule of Other Income (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other (Expense) Income
Foreign currency remeasurement gain (loss)	$ 29,000,000	$ (2,000,000)	$ 13,000,000	$ (12,000,000)
Loss on disposal of business	0	0	(1,000,000)	(2,000,000)
Pension and other postretirement income (expense)	(7,000,000)	9,000,000	(5,000,000)	17,000,000
Equity earnings	1,000,000	3,000,000	2,000,000	9,000,000
Loss on financial instruments	(27,000,000)	(6,000,000)	(27,000,000)	(10,000,000)
Other	1,000,000	0	0	0
Total	$ (3,000,000)	$ 4,000,000	$ (18,000,000)	$ 2,000,000