Derivative Instruments - (Loss) Gain Recognized In Income (Details) - Derivative instruments not designated as hedges - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Total (loss) gain recognized in income	$ (16)	$ 6	$ (26)	$ 19
Foreign exchange contracts | Foreign exchange loss
Derivative Instruments, Gain (Loss) [Line Items]
Total (loss) gain recognized in income	(1)	1	(3)	1
Forward interest rate swaps | Interest expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Total (loss) gain recognized in income	$ (15)	$ 5	$ (23)	$ 18