Income Taxes (Narrative) (Details) - USD ($)
$ in Millions |
|
3 Months Ended |
12 Months Ended |
Jan. 27, 2014 |
Feb. 02, 2019 |
Feb. 01, 2020 |
Feb. 02, 2019 |
Feb. 03, 2018 |
| Operating Loss Carryforwards [Line Items] |
|
|
|
|
|
| Net tax benefit recorded in connection with U. S. Tax Cuts and Jobs Act |
|
$ 75
|
|
|
|
| Document Period End Date |
|
|
Feb. 01, 2020
|
|
|
| Valuation allowance |
|
802
|
$ 869
|
$ 802
|
|
| Net tax expense (benefit) |
|
|
3
|
(16)
|
$ (126)
|
| Federal unused interest deductions that do not expire subject to interest limitation |
|
|
341
|
|
|
| Operating loss carryforwards and tax credits, potential offset to future ordinary taxable income |
|
|
710
|
|
|
| Amended rights agreement, stockholder ownership percentage, maximum |
4.90%
|
|
|
|
|
| Amended rights agreement, Minimum stock ownership percentage by which stockholders are prevented from acquiring additional shares |
4.90%
|
|
|
|
|
| Amount of unrecognized tax benefits that would impact effective tax rate if recognized |
|
|
33
|
|
|
| Benefit of federal tax deduction of state taxes |
|
|
7
|
7
|
7
|
| Accrued interest and penalties for unrecognized tax benefits |
|
$ 1
|
2
|
$ 1
|
$ 1
|
| Interest expense disallowed |
|
|
119
|
|
|
| Deferred Tax Assets, Interest Expense Limitation on Which a Full Valuation Allowance Was Recorded |
|
|
35
|
|
|
| Federal [Member] |
|
|
|
|
|
| Operating Loss Carryforwards [Line Items] |
|
|
|
|
|
| Net operating loss carryforward |
|
|
2,100
|
|
|
| Tax credit carryforwards |
|
|
$ 76
|
|
|