Stockholders' Equity (Details) - USD ($)
shares in Millions, $ in Millions |
3 Months Ended |
Apr. 29, 2017 |
Apr. 30, 2016 |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
| January 28, 2017, shares |
308.3
|
|
| January 28, 2017 |
$ 1,354
|
|
| Net income/(loss) |
(180)
|
$ (68)
|
| Other comprehensive income/(loss) |
25
|
$ 3
|
| Stock-based compensation and other |
$ 6
|
|
| April 29, 2017, shares |
309.8
|
307.3
|
| April 29, 2017 |
$ 1,205
|
|
| Common Stock [Member] |
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
| January 28, 2017, shares |
308.3
|
|
| January 28, 2017 |
$ 154
|
|
| Stock-based compensation, shares |
1.5
|
|
| Stock-based compensation and other |
$ 1
|
|
| April 29, 2017, shares |
309.8
|
|
| April 29, 2017 |
$ 155
|
|
| Additional Paid-in Capital [Member] |
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
| January 28, 2017 |
4,679
|
|
| Stock-based compensation and other |
5
|
|
| April 29, 2017 |
4,684
|
|
| Reinvested Earnings/(Accumulated Deficit) [Member] |
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
| January 28, 2017 |
(3,006)
|
|
| Net income/(loss) |
(180)
|
|
| April 29, 2017 |
(3,186)
|
|
| Accumulated Other Comprehensive Income/(Loss) [Member] |
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
| January 28, 2017 |
(473)
|
|
| Other comprehensive income/(loss) |
25
|
|
| April 29, 2017 |
$ (448)
|
|