Stock-Based Compensation (Summary Of Stock-Based Compensation Expense) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Aug. 03, 2019	Aug. 04, 2018	Aug. 03, 2019	Aug. 04, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit		$ 20	$ 28	$ 40	$ 51
Income tax benefit		(5)	(7)	(10)	(13)
Total stock-based compensation expense, net of income tax benefit		15	21	30	38
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit		14	22	28	40
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit		3	3	7	6
Other [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit	[1]	$ 3	$ 3	$ 5	$ 5

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