Stockholders' Equity (Details) - USD ($)
shares in Millions, $ in Millions |
3 Months Ended |
6 Months Ended |
Aug. 01, 2015 |
Aug. 02, 2014 |
Aug. 01, 2015 |
Aug. 02, 2014 |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| January 31, 2015, shares |
|
|
304.9
|
|
| January 31, 2015 |
|
|
$ 1,914
|
|
| Net income/(loss) |
$ (138)
|
$ (172)
|
(305)
|
$ (524)
|
| Other comprehensive income/(loss) |
$ 12
|
$ 10
|
29
|
$ 20
|
| Stock-based compensation |
|
|
$ 22
|
|
| August 1, 2015, shares |
305.5
|
304.8
|
305.5
|
304.8
|
| August 1, 2015 |
$ 1,660
|
|
$ 1,660
|
|
| Common Stock [Member] |
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| January 31, 2015, shares |
|
|
304.9
|
|
| January 31, 2015 |
|
|
$ 152
|
|
| Stock-based compensation, shares |
|
|
0.6
|
|
| Stock-based compensation |
|
|
$ 1
|
|
| August 1, 2015, shares |
305.5
|
|
305.5
|
|
| August 1, 2015 |
$ 153
|
|
$ 153
|
|
| Additional Paid-in Capital [Member] |
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| January 31, 2015 |
|
|
4,606
|
|
| Stock-based compensation |
|
|
21
|
|
| August 1, 2015 |
4,627
|
|
4,627
|
|
| Reinvested Earnings/(Accumulated Deficit) [Member] |
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| January 31, 2015 |
|
|
(1,779)
|
|
| Net income/(loss) |
|
|
(305)
|
|
| August 1, 2015 |
(2,084)
|
|
(2,084)
|
|
| Accumulated Other Comprehensive Income/(Loss) [Member] |
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| January 31, 2015 |
|
|
(1,065)
|
|
| Other comprehensive income/(loss) |
|
|
29
|
|
| August 1, 2015 |
$ (1,036)
|
|
$ (1,036)
|
|