Description Of Business And Basis Of Presentation (Details) $ in Millions	3 Months Ended		9 Months Ended	12 Months Ended
	Oct. 31, 2020 USD ($) Reportable_Segments	Nov. 02, 2019 USD ($)	Oct. 31, 2020 USD ($)	Jan. 30, 2021 USD ($)	Feb. 01, 2020 USD ($)	Feb. 02, 2019 USD ($)
Description Of Business And Basis of Presentation
Number of Reportable Segments | Reportable_Segments	2
Decrease in operating expenses			$ 55
Debt Instrument, Face Amount			2,250
Extinguishment of debt			1,259
Goodwill impairment loss		$ 30
Other assets	$ 128		128
Cash, cash equivalents, restricted cash and restricted cash equivalents	$ 2,750	$ 340	$ 2,750		$ 1,499	$ 1,413
Forecast
Description Of Business And Basis of Presentation
Original Capital Expenditures Forecast				$ 550
Forecasted capital expenditures				$ 250