Equity Summary of Accumulated Other Comprehensive Income (loss) (Details) - USD ($) $ in Millions	Jan. 02, 2021	Dec. 28, 2019
Equity [Abstract]
Foreign currency translation adjustments	$ (1,668)	$ (1,399)
Cash flow hedges — unrealized net gain (loss)	(57)	(60)
Postretirement and postemployment benefits:
Net experience gain (loss)	2	7
Prior service credit (cost)	(12)	4
Total accumulated other comprehensive income (loss)
AOCI, Debt Securities, Available-for-sale, Adjustment, after Tax	3	0
Accumulated other comprehensive income (loss)	$ (1,732)	$ (1,448)