Composition of Certain Financial Statement Captions (Condensed Income Statement) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 03, 2020	Dec. 28, 2018	Dec. 29, 2017
Interest expense, net:
Interest expense	$ (147)	$ (145)	$ (148)
Interest income	14	7	8
Interest expense, net:	(133)	(138)	(140)
Other income (expense), net
Gain on sale of businesses	88	0	0
Promissory note impairment	0	0	(33)
(Loss) gain on foreign currencies	(1)	2	5
Other (expense) income, net	0	(3)	2
Other income (expense), net	$ 87	$ (1)	$ (26)