Derivative Financial Instruments and Risk Management (Details 2) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value
Asset Fair Value	$ 72	$ 91
Liability Fair Value	(8)	(10)
Designated derivatives
Derivatives, Fair Value
Asset (Liability) Fair Value	29	48
Designated derivatives | Interest rate contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	4	51
Designated derivatives | Interest rate contracts | Accrued expenses
Derivatives, Fair Value
Liability Fair Value	(1)	(4)
Designated derivatives | Cross currency contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	29	1
Designated derivatives | Cross currency contracts | Accrued expenses
Derivatives, Fair Value
Liability Fair Value	(3)	0
Undesignated derivatives
Derivatives, Fair Value
Asset (Liability) Fair Value	35	33
Undesignated derivatives | Foreign exchange contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	12	3
Undesignated derivatives | Foreign exchange contracts | Accrued expenses
Derivatives, Fair Value
Liability Fair Value	(4)	(6)
Undesignated derivatives | Cross currency contracts | Other assets
Derivatives, Fair Value
Asset Fair Value	$ 27	$ 36