Fair Value Measurements (Summary Of Carrying Value And Fair Value Estimate Of Long-Term Debt) (Details) - USD ($) $ in Millions	Oct. 30, 2021	Jan. 30, 2021	Oct. 31, 2020
Fair Value Measurements, Long-term Debt [Line Items]
Carrying value of long-term debt	$ 2,851	$ 3,269	$ 3,266
Level 2 [Member]
Fair Value Measurements, Long-term Debt [Line Items]
Fair value of long-term debt	$ 2,992	$ 3,430	$ 2,865