Financing Activities - Detail Of Debt Repayments (Details) - USD ($) $ in Millions	6 Months Ended
	Aug. 01, 2020	Aug. 03, 2019
Repayments of Debt	$ 1,503	$ 39
9.5% Amortizing debentures due 2021
Interest rate stated percentage		9.50%
Repayments of Debt	2	$ 2
9.75% Amortizing Debentures due 2021
Interest rate stated percentage		9.75%
Repayments of Debt	1	$ 1
Line of Credit
Repayments of Debt	1,500	$ 0
8.5% Amortizing debentures due 2019
Interest rate stated percentage		8.50%
Repayments of Debt	$ 0	$ 36