Fair Value Measurements (Summary Of Carrying Value And Fair Value Estimate Of Long-Term Debt) (Details) - USD ($) $ in Millions	May 02, 2020	Feb. 01, 2020	May 04, 2019
Fair Value Measurements, Long-term Debt [Line Items]
Carrying value of long-term debt	$ 3,264	$ 2,676	$ 2,676
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Fair Value Measurements, Long-term Debt [Line Items]
Fair value of long-term debt	$ 2,804	$ 2,905	$ 2,741