Risk Management - Summary of Derivative Instruments and the Effect on the Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Designated as Hedging Instrument | Foreign exchange contracts | Other comprehensive income (loss)
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on Derivative Instruments	$ (1)	$ 0	$ (3)	$ 0
Not Designated As Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on Derivative Instruments	3	(11)	14	(41)
Not Designated As Hedging Instruments | Interest agreements | Other income (expense)
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on Derivative Instruments	(1)	0	(1)	0
Not Designated As Hedging Instruments | Foreign exchange contracts | Other income (expense)
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on Derivative Instruments	$ 4	$ (11)	$ 15	$ (41)