Stockholders' Equity (Details) - USD ($)
shares in Millions, $ in Millions |
3 Months Ended |
9 Months Ended |
Oct. 29, 2016 |
Oct. 31, 2015 |
Oct. 29, 2016 |
Oct. 31, 2015 |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| January 30, 2016, shares |
|
|
|
306.1
|
|
|
| January 30, 2016 |
|
|
|
$ 1,309
|
|
|
| Net income/(loss) |
$ (67)
|
$ (115)
|
[1] |
(191)
|
$ (382)
|
[1] |
| Other comprehensive income/(loss) |
$ 2
|
$ (10)
|
[1] |
(1)
|
$ (19)
|
[1] |
| Stock-based compensation and other |
|
|
|
$ 23
|
|
|
| October 29, 2016, shares |
307.8
|
305.5
|
|
307.8
|
305.5
|
|
| October 29, 2016 |
$ 1,140
|
|
|
$ 1,140
|
|
|
| Common Stock [Member] |
|
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| January 30, 2016, shares |
|
|
|
306.1
|
|
|
| January 30, 2016 |
|
|
|
$ 153
|
|
|
| Stock-based compensation, shares |
|
|
|
1.7
|
|
|
| Stock-based compensation and other |
|
|
|
$ 1
|
|
|
| October 29, 2016, shares |
307.8
|
|
|
307.8
|
|
|
| October 29, 2016 |
$ 154
|
|
|
$ 154
|
|
|
| Additional Paid-in Capital [Member] |
|
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| January 30, 2016 |
|
|
|
4,654
|
|
|
| Stock-based compensation and other |
|
|
|
22
|
|
|
| October 29, 2016 |
4,676
|
|
|
4,676
|
|
|
| Reinvested Earnings/(Accumulated Deficit) [Member] |
|
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| January 30, 2016 |
|
|
|
(3,007)
|
|
|
| Net income/(loss) |
|
|
|
(191)
|
|
|
| October 29, 2016 |
(3,198)
|
|
|
(3,198)
|
|
|
| Accumulated Other Comprehensive Income/(Loss) [Member] |
|
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| January 30, 2016 |
|
|
|
(491)
|
|
|
| Other comprehensive income/(loss) |
|
|
|
(1)
|
|
|
| October 29, 2016 |
$ (492)
|
|
|
$ (492)
|
|
|
|
|