Financing (Schedule of Company Debt) (Details) - USD ($) $ in Millions	Jan. 29, 2022	Aug. 17, 2021	Mar. 17, 2021	Jan. 30, 2021	Feb. 01, 2020
Short-term Debt	$ 0			$ 452
Unamortized debt issue costs and discount	(22)			(77)
3.875% Senior notes due 2022 [Member]
Short-term Debt	$ 0			$ 450
Debt instrument interest rate, stated percentage	3.875%			3.875%
Current portion of other long-term obligations [Member]
Short-term Debt	$ 0			$ 2
8.375% Senior secured notes due 2025 [Member]
Debt instrument, principal outstanding	$ 0			$ 1,300
Debt instrument interest rate, stated percentage	8.375%	8.375%		8.375%
2.875% Senior Notes Due 2023 [Member]
Debt instrument, principal outstanding	$ 504			$ 640
Debt instrument interest rate, stated percentage	2.875%			2.875%	2.875%
5.875% Senior Secured Debentures Due 2029 [Member]
Debt instrument, principal outstanding	$ 500			$ 0
Debt instrument interest rate, stated percentage	5.875%		5.875%	5.875%
4.5% Senior Notes Due 2034 [Member]
Debt instrument, principal outstanding	$ 367			$ 367
Debt instrument interest rate, stated percentage	4.50%			4.50%
3.625% Senior Notes Due 2024 [Member]
Debt instrument, principal outstanding	$ 350			$ 500
Debt instrument interest rate, stated percentage	3.625%			3.625%
5.125% Senior Notes Due 2042 [Member]
Debt instrument, principal outstanding	$ 250			$ 250
Debt instrument interest rate, stated percentage	5.125%			5.125%
4.3% Senior Notes Due 2043 [Member]
Debt instrument, principal outstanding	$ 250			$ 250
Debt instrument interest rate, stated percentage	4.30%			4.30%
6.375% Senior Notes Due 2037 [Member]
Debt instrument, principal outstanding	$ 192			$ 192
Debt instrument interest rate, stated percentage	6.375%			6.375%
6.7% Senior Secured Debentures Due 2034 [Member]
Debt instrument, principal outstanding	$ 183			$ 183
Debt instrument interest rate, stated percentage	6.70%			6.70%
4.375% Senior notes due 2023 [Member]
Debt instrument, principal outstanding	$ 161			$ 210
Debt instrument interest rate, stated percentage	4.375%			4.375%	4.375%
7.0% Senior Debentures Due 2028 [Member]
Debt instrument, principal outstanding	$ 105			$ 105
Debt instrument interest rate, stated percentage	7.00%			7.00%
6.65% Senior secured debentures due 2024 [Member]
Debt instrument, principal outstanding	$ 81			$ 81
Debt instrument interest rate, stated percentage	6.65%			6.65%
6.9% senior debentures due 2029 [Member]
Debt instrument, principal outstanding	$ 79			$ 79
Debt instrument interest rate, stated percentage	6.90%			6.90%	6.90%
6.7% Senior Secured Debentures Due 2028 [Member]
Debt instrument, principal outstanding	$ 74			$ 74
Debt instrument interest rate, stated percentage	6.70%			6.70%
6.79% Senior Debentures Due 2027 [Member]
Debt instrument, principal outstanding	$ 71			$ 71
Debt instrument interest rate, stated percentage	6.79%			6.79%
6.65% Senior Debentures Due 2024 [Member]
Debt instrument, principal outstanding	$ 36			$ 41
Debt instrument interest rate, stated percentage	6.65%			6.65%
6.7% Senior Debentures Due 2028 [Member]
Debt instrument, principal outstanding	$ 29			$ 29
Debt instrument interest rate, stated percentage	6.70%			6.70%
8.75% Senior secured debentures due 2029 [Member]
Debt instrument, principal outstanding	$ 13			$ 13
Debt instrument interest rate, stated percentage	8.75%			8.75%
6.7% Senior debentures due 2034 [Member]
Debt instrument, principal outstanding	$ 18			$ 18
Debt instrument interest rate, stated percentage	6.70%			6.70%
6.9% Senior Debentures Due 2032 [Member]
Debt instrument, principal outstanding	$ 12			$ 12
Debt instrument interest rate, stated percentage	6.90%			6.90%
7.6% Senior Debentures Due 2025 [Member]
Debt instrument, principal outstanding	$ 6			$ 24
Debt instrument interest rate, stated percentage	7.60%			7.60%
7.875% Senior secured debentures due 2030 [Member]
Debt instrument, principal outstanding	$ 5			$ 5
Debt instrument interest rate, stated percentage	7.875%			7.875%
6.9% Senior secured debentures due 2032 [Member]
Debt instrument, principal outstanding	$ 5			$ 5
Debt instrument interest rate, stated percentage	6.90%			6.90%
7.875% Senior Debentures Due 2030 [Member]
Debt instrument, principal outstanding	$ 5			$ 5
Debt instrument interest rate, stated percentage	7.875%			7.875%
Premium on Acquired Debt [Member]
Premium on acquired debt, using an effective interest yield of 5.760% to 6.021%	$ 21			$ 30
Premium on Acquired Debt [Member] | Minimum [Member]
Debt instrument interest rate, effective percentage	5.76%			5.76%
Premium on Acquired Debt [Member] | Maximum [Member]
Debt instrument interest rate, effective percentage	6.021%			6.021%
Entire Long Term Debt [Member]
Debt instrument, principal outstanding	$ 3,295			$ 4,407