401(k) Plan (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Four Zero One K Plan [Abstract]
Expense related to Company 401(k) plan contributions	$ 0	$ 85	$ 102

Amount of cost for defined contribution plan.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

Name:	us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration