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Restructuring (Narrative) (Details) - USD ($)	3 Months Ended	6 Months Ended
Restructuring (Narrative) (Details) - USD ($)	Jul. 31, 2021	Jul. 31, 2021	Aug. 01, 2020	May 01, 2021	Jan. 30, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 4,000,000	$ (38,000,000)	$ 1,000,000
U.S. Operating Model [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve				$ 0
Cumulative Amount				41,000,000
Termination Benefits [Member] \| Mexico Exit And Strategic Realignment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 44,000,000
Restructuring Reserve				$ 15,000,000	$ 124,000,000