Fair Value Measurements (Summary Of Carrying Value And Fair Value Estimate Of Long-Term Debt, Including Current Maturities) (Details) - USD ($) $ in Millions	Jan. 28, 2023	Jan. 29, 2022
Fair Value Measurements, Long-term Debt [Line Items]
Carrying value of long-term debt	$ 2,856	$ 2,853
Level 2 [Member]
Fair Value Measurements, Long-term Debt [Line Items]
Fair value of long-term debt	$ 2,278	$ 2,758

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant