Derivative Financial Instruments and Risk Management (Details 2) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value
Asset Fair Value	$ 109	$ 91
Liability Fair Value	(13)	(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	55	51
Designated derivatives | Interest rate contracts | Accrued expenses
Derivatives, Fair Value
Liability Fair Value	(3)	(4)
Designated derivatives | Cross currency contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	0	1
Undesignated derivatives
Derivatives, Fair Value
Asset (Liability) Fair Value	44	33
Undesignated derivatives | Foreign exchange contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	22	3
Undesignated derivatives | Foreign exchange contracts | Accrued expenses
Derivatives, Fair Value
Liability Fair Value	(10)	(6)
Undesignated derivatives | Cross currency contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	$ 32	$ 36