Stock-Based Compensation (Summary Of Stock-Based Compensation Expense) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Nov. 02, 2019	Nov. 03, 2018	Nov. 02, 2019	Nov. 03, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit		$ 15	$ 21	$ 55	$ 72
Income tax benefit		(4)	(5)	(14)	(18)
Total stock-based compensation expense, net of income tax benefit		11	16	41	54
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit		11	17	39	57
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit		2	3	9	9
Other [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit	[1]	$ 2	$ 1	$ 7	$ 6

[1] Other stock-based compensation expense includes PSUs, ESPP and nonemployee director stock awards.