Derivatives and Hedging Instruments - Derivative Fair Values (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	$ 2	$ 3
Derivative Liabilities, Fair Value	7	5
Derivatives designated as hedging instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	2	2
Derivative Liabilities, Fair Value	5	4
Derivatives not designated as hedging instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	0	1
Derivative Liabilities, Fair Value	2	1
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	0
Interest Rate Swap [Member] | Derivatives designated as hedging instrument [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	0	0
Derivative Assets, Fair Value	0	0
Interest Rate Swap [Member] | Derivatives designated as hedging instrument [Member] | Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	368	380
Derivative Liabilities, Fair Value	2	3
Interest Rate Swap Ending Notional	341
Foreign Exchange Derivative [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	(1)
Foreign Exchange Derivative [Member] | Derivatives designated as hedging instrument [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	60	53
Derivative Assets, Fair Value	2	2
Foreign Exchange Derivative [Member] | Derivatives designated as hedging instrument [Member] | Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	94	105
Derivative Liabilities, Fair Value	3	1
Foreign Exchange Derivative [Member] | Derivatives not designated as hedging instrument [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	72	191
Derivative Assets, Fair Value	0	1
Foreign Exchange Derivative [Member] | Derivatives not designated as hedging instrument [Member] | Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	269	204
Derivative Liabilities, Fair Value	$ 2	$ 1