Other Financial Data - Other Income (Expense) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Interest income (expense), net:
Interest expense	$ (54)	$ (53)
Interest income	3	4
Interest income (expense), net	(51)	(49)
Other:
Foreign currency gain (loss)	(2)	13
Loss on derivative instruments	(7)	(12)
Gains (losses) on equity method investments	(1)	1
Realized foreign currency loss on acquisition	0	(10)
Other	2	0
Total other income (expense)	$ (8)	$ (8)