Stock-Based Compensation (Summary Of Stock-Based Compensation Expense) (Details) - USD ($) $ in Millions		3 Months Ended
		May 02, 2020	May 04, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit		$ 13	$ 20
Income tax benefit		(5)	(5)
Total stock-based compensation expense, net of income tax benefit		8	15
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit		13	14
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit		2	4
Other [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense, before income tax benefit	[1]	$ (2)	$ 2

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