Benefit Plans Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Compensation And Retirement Disclosure [Abstract]
Percentage of maximum investment by participant	99.00%
Increase in percentage of participants 100% contribution fully matched per participants	5.00%
Non-qualified deferred compensation plan pre-tax compensation deferrals	75.00%
Deferrals and credited investment returns vesting percentage	100.00%
Employee Stock Ownership Plan, Defined Contribution Plan, Non-Qualified Deferred Compensation Plan	$ 49	$ 47	$ 49