Other Income (Expense), Net (Schedule of Other Income (Expense)) (Details) - USD ($) $ in Millions		3 Months Ended
	Apr. 30, 2020	Apr. 02, 2021	Apr. 03, 2020
Other Income and Expenses [Abstract]
Other components of net periodic benefit costs		$ 11	$ 5
Investment gains/(losses)		116	(7)
Gain on sale of product lines	$ 455	13	0
Total other income (expense), net		$ 140	$ (2)