Retirement Plans - Schedule of Guaranteed Deposit Accounts (Details) - Level 3 - USD ($) $ in Millions	12 Months Ended
Jan. 29, 2021	Jan. 31, 2020
Change in plan assets:
Beginning balance	$ 2	$ 3
Purchases	12	13
Sales	(11)	(14)
Ending balance	$ 3	$ 2

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

Name:	us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration