Financing (Schedule of Company Debt) (Details) - USD ($) $ in Millions	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
2.875% Senior notes due 2023 [Member]
Debt instrument, principal outstanding	$ 640	$ 750
Debt instrument interest rate, stated percentage	2.875%
3.875% Senior notes due 2022 [Member]
Debt instrument, principal outstanding	$ 450	550
Debt instrument interest rate, stated percentage	3.875%
4.5% senior notes due 2034[Member]
Debt instrument, principal outstanding	$ 367	367
Debt instrument interest rate, stated percentage	4.50%
3.45% senior notes due 2021 [Member]
Debt instrument, principal outstanding	$ 0	500
Debt instrument interest rate, stated percentage	3.45%
3.625% senior notes due 2024 [Member]
Debt instrument, principal outstanding	$ 500	500
Debt instrument interest rate, stated percentage	3.625%
4.375% Senior notes due 2023 [Member]
Debt instrument, principal outstanding	$ 210	400
Debt instrument interest rate, stated percentage	4.375%
5.125% Senior debentures due 2042 [Member]
Debt instrument, principal outstanding	$ 250	250
Debt instrument interest rate, stated percentage	5.125%
4.3% Senior notes due 2043 [Member]
Debt instrument, principal outstanding	$ 250	250
Debt instrument interest rate, stated percentage	4.30%
6.7% Senior debentures due 2034 [Member]
Debt instrument, principal outstanding	$ 201	$ 201
Debt instrument interest rate, stated percentage	6.70%	6.70%	6.70%
6.9% senior debentures due 2029 [Member]
Debt instrument, principal outstanding	$ 79	$ 192
Debt instrument interest rate, stated percentage	6.90%	6.90%
6.375% Senior notes due 2037 [Member]
Debt instrument, principal outstanding	$ 192	$ 192
Debt instrument interest rate, stated percentage	6.375%	6.375%	6.375%
6.65% senior debentures due 2024 [Member]
Debt instrument, principal outstanding	$ 122	$ 122
Debt instrument interest rate, stated percentage	6.65%	6.65%
7.0% Senior Debentures Due 2028 [Member]
Debt instrument, principal outstanding	$ 105	$ 117
Debt instrument interest rate, stated percentage	7.00%
6.7% Senior Debentures Due 2028 [Member]
Debt instrument, principal outstanding	$ 103	$ 103
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%
6.9% Senior Debentures Due 2032 [Member]
Debt instrument, principal outstanding	$ 17	$ 17
Debt instrument interest rate, stated percentage	6.90%	6.90%	6.90%
10.25% Senior Debentures Due 2021 [Member]
Debt instrument, principal outstanding	$ 0	$ 33
Debt instrument interest rate, stated percentage	10.25%
7.6% Senior Debentures Due 2025 [Member]
Debt instrument, principal outstanding	$ 24	24
Debt instrument interest rate, stated percentage	7.60%
8.75% Senior Debentures Due 2029 [Member]
Debt instrument, principal outstanding	$ 13	$ 13
Debt instrument interest rate, stated percentage	8.75%	8.75%	8.75%
7.875% Senior Debentures Due 2030 [Member]
Debt instrument, principal outstanding	$ 10	$ 10
Debt instrument interest rate, stated percentage	7.875%	7.875%	7.875%
9.5% Amortizing Debentures Due 2021 [Member]
Debt instrument, principal outstanding	$ 2	$ 6
Debt instrument interest rate, stated percentage	9.50%
9.75% Amortizing Debentures Due 2021 [Member]
Debt instrument, principal outstanding	$ 1	3
Debt instrument interest rate, stated percentage	9.75%
Unamortized debit issue costs [Member]
Unamortized debt issue costs	$ (13)	(18)
Unamortized debit discount [Member]
Unamortized debt discount	(7)	(9)
Premium on acquired debt
Debt Instrument, Unamortized Premium, Noncurrent	$ 34	39
Premium on acquired debt \| Minimum [Member]
Debt instrument interest rate, effective percentage	5.542%
Premium on acquired debt \| Maximum [Member]
Debt instrument interest rate, effective percentage	7.144%
Capital Lease and Other Long-Term Obligations [Member]
Debt instrument, principal outstanding	$ 0	25
Total Of Long Term Debt [Member]
Debt instrument, principal outstanding	3,621	4,708
8.5% Senior Debentures Due 2019 [Member]
Short-term Debt	$ 0	36
Debt instrument interest rate, stated percentage	8.50%
3.45% senior notes due 2021 [Member]
Short-term Debt	$ 500	0
Debt instrument interest rate, stated percentage	3.45%
10.25% Senior Debentures Due 2021 [Member]
Short-term Debt	$ 33	0
Debt instrument interest rate, stated percentage	10.25%
Capital Lease and Current Portion of Other Long-Term Obligations
Short-term Debt	$ 6	7
Short-term Debt [Member]
Short-term Debt	$ 539	$ 43

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Amount of debt premium to be amortized after one year or the normal operating cycle, if longer.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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