Other (Income) Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Other Income and Expenses [Line Items]
Gain (Loss) on Sale/Revaluation of Assets/NCI	$ 16	$ 3
Other (income) expense - net	9	3
Other Income (Expense)	$ (7)	$ 0