Change in Accounting for Retirement-Related Benefits (Details) - USD ($)
$ / shares in Units, $ in Millions |
12 Months Ended |
|
Jan. 28, 2017 |
Jan. 30, 2016 |
Jan. 31, 2015 |
Feb. 01, 2014 |
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest |
|
$ 1,354
|
$ 1,309
|
$ 1,914
|
$ 3,087
|
| Pension |
|
19
|
162
|
(48)
|
|
| Reinvested earnings/(accumulated deficit) |
|
(3,006)
|
(3,007)
|
|
|
| Income/(loss) before income taxes |
|
2
|
(504)
|
(694)
|
|
| Income tax expense/(benefit) |
|
1
|
9
|
23
|
|
| Net income/(loss) |
|
$ 1
|
$ (513)
|
$ (717)
|
|
| Basic earnings/(loss) per common share |
|
$ 0.00
|
$ (1.68)
|
$ (2.35)
|
|
| Diluted earnings/(loss) per common share |
|
$ 0.00
|
$ (1.68)
|
$ (2.35)
|
|
| Reclassifications for amortization of net actuarial (gain)/loss |
[1] |
$ 1
|
$ 31
|
$ 7
|
|
| Deferred tax valuation allowance |
|
0
|
(54)
|
(190)
|
|
| Other Comprehensive Income (Loss), Net of Tax |
|
18
|
(141)
|
(491)
|
|
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent |
|
19
|
(654)
|
(1,208)
|
|
| Accumulated other comprehensive income (loss) |
|
(473)
|
(491)
|
|
|
| Benefit plans |
|
(39)
|
127
|
(78)
|
|
| Other comprehensive income tax benefits |
|
(12)
|
0
|
0
|
|
| Deferred taxes |
|
9
|
0
|
3
|
|
| Retained Earnings [Member] |
|
|
|
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest |
|
(3,006)
|
(3,007)
|
(2,494)
|
(1,777)
|
| Net income/(loss) |
|
|
(513)
|
(717)
|
|
| Accumulated Other Comprehensive Income/(Loss) [Member] |
|
|
|
|
|
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest |
|
(473)
|
(491)
|
(350)
|
$ 141
|
| Other Comprehensive Income (Loss), Net of Tax |
|
$ 18
|
$ (141)
|
$ (491)
|
|
|
|