Derivatives (Details 3) (Derivatives not designated as hedging instruments, USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Derivatives not designated as hedging instruments
Gain (Loss) on Derivative Recognized in income	$ 89	$ 32
Foreign currency forward/option contracts
Derivatives not designated as hedging instruments
Derivative notional amount	7,100
Foreign currency forward/option contracts | Cost of Sales
Derivatives not designated as hedging instruments
Gain (Loss) on Derivative Recognized in income	4	(1)
Foreign currency forward contracts | Interest expense
Derivatives not designated as hedging instruments
Gain (Loss) on Derivative Recognized in income	89	33
Commodity price swap contracts | Cost of Sales
Derivatives not designated as hedging instruments
Gain (Loss) on Derivative Recognized in income	$ (4)