Risk Management - Summary of Fair Values and Location in Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	$ 7
Fair value of derivative liabilities	9
Designated as Hedging Instrument | Foreign exchange contracts | Other assets
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	0
Designated as Hedging Instrument | Foreign exchange contracts | Other liabilities
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	3
Not Designated As Hedging Instruments
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	7
Fair value of derivative liabilities	6
Not Designated As Hedging Instruments | Foreign exchange contracts | Other current assets
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	7	$ 9
Not Designated As Hedging Instruments | Foreign exchange contracts | Accrued liabilities
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	5	32
Not Designated As Hedging Instruments | Interest agreements | Other current assets
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	0
Not Designated As Hedging Instruments | Interest agreements | Accrued liabilities
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	$ 1	$ 0