Fair Value Measurements (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020
Fair Value Disclosures [Abstract]
Publicly traded mutual funds with fair value	$ 17,500,000
Investment Owned, at Fair Value	17,500,000		$ 17,500,000
Accrued Liabilities and Other Liabilities	6,100,000		6,100,000
Deferred Compensation Liability, Current	11,400,000		11,400,000
Long-lived assets, impairment charges	$ 243,000,000	$ 182,000	$ 967,000,000	$ 2,500,000
Operating lease, impairment loss		$ 0		$ 0