Derivatives - Not Designated (Details) - Derivatives not designated as hedging instruments - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivatives not designated as hedging instruments
Gain (Loss) on Derivative Recognized in income	$ 20	$ (38)	$ 56	$ (9)
Foreign currency forward/option contracts | Cost of sales
Derivatives not designated as hedging instruments
Gain (Loss) on Derivative Recognized in income	(1)	(5)	(7)
Foreign currency forward contracts | Interest expense
Derivatives not designated as hedging instruments
Gain (Loss) on Derivative Recognized in income	$ 21	(34)	$ 63	(6)
Commodity price swap contracts | Cost of sales
Derivatives not designated as hedging instruments
Gain (Loss) on Derivative Recognized in income		$ 1		$ (3)