Other Financial Data - Schedule of Other Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Other (Expense) Income
Foreign currency remeasurement loss	$ (10)	$ (17)
(Loss) gain on disposal of business	(2)	35
Equity earnings	6	2
Loss on financial instruments	(4)	(2)
Total	$ (10)	$ 18