Restructuring Charges/Other - Restructuring Reserve (Details) $ in Millions	9 Months Ended
	Sep. 30, 2016 USD ($)
Restructuring And Related Activities [Abstract]
Balance, December 31, 2015	$ 32
Restructuring charges	5
Payments	(10)
Non-cash items	(4)	[1]
Balance, September 30, 2016	$ 23

[1] Reflects charges for impacts of accelerated depreciation and changes in exchange rates.