Derivative Instruments - (Loss) Gain Recognized In Income (Details) - Derivative instruments not designated as hedges - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Total (loss) gain recognized in income	$ (5)	$ 7	$ (31)	$ 26
Foreign exchange contracts | Foreign exchange gain (loss)
Derivative Instruments, Gain (Loss) [Line Items]
Total (loss) gain recognized in income	(1)	1	(4)	2
Forward interest rate swaps | Interest expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Total (loss) gain recognized in income	$ (4)	$ 6	$ (27)	$ 24