Derivative Financial Instruments and Risk Management (Details 2) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Derivatives, Fair Value
Asset Fair Value	$ 90	$ 91
Liability Fair Value	(15)	(10)
Designated derivatives
Derivatives, Fair Value
Asset (Liability) Fair Value	52	48
Designated derivatives | Interest rate contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	50	51
Designated derivatives | Interest rate contracts | Accrued expenses
Derivatives, Fair Value
Liability Fair Value	(4)	(4)
Designated derivatives | Cross currency contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	8	1
Designated derivatives | Cross currency contracts | Accrued expenses
Derivatives, Fair Value
Liability Fair Value	(2)	0
Undesignated derivatives
Derivatives, Fair Value
Asset (Liability) Fair Value	23	33
Undesignated derivatives | Foreign exchange contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	6	3
Undesignated derivatives | Foreign exchange contracts | Accrued expenses
Derivatives, Fair Value
Liability Fair Value	(9)	(6)
Undesignated derivatives | Cross currency contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	$ 26	$ 36