Stockholders' Equity (Details) - USD ($)
shares in Millions, $ in Millions |
3 Months Ended |
9 Months Ended |
Oct. 28, 2017 |
Oct. 29, 2016 |
Oct. 28, 2017 |
Oct. 29, 2016 |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| January 28, 2017, shares |
|
|
308.3
|
|
| January 28, 2017 |
|
|
$ 1,354
|
|
| Net income/(loss) |
$ (128)
|
$ (67)
|
(370)
|
$ (191)
|
| Other comprehensive income/(loss) |
$ 43
|
$ 2
|
70
|
$ (1)
|
| Stock-based compensation and other |
|
|
$ 24
|
|
| July 29, 2017, shares |
311.1
|
307.8
|
311.1
|
307.8
|
| October 28, 2017 |
$ 1,078
|
|
$ 1,078
|
|
| Common Stock [Member] |
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| January 28, 2017, shares |
|
|
308.3
|
|
| January 28, 2017 |
|
|
$ 154
|
|
| Stock-based compensation, shares |
|
|
2.8
|
|
| Stock-based compensation and other |
|
|
$ 2
|
|
| July 29, 2017, shares |
311.1
|
|
311.1
|
|
| October 28, 2017 |
$ 156
|
|
$ 156
|
|
| Additional Paid-in Capital [Member] |
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| January 28, 2017 |
|
|
4,679
|
|
| Stock-based compensation and other |
|
|
22
|
|
| October 28, 2017 |
4,701
|
|
4,701
|
|
| Reinvested Earnings/(Accumulated Deficit) [Member] |
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| January 28, 2017 |
|
|
(3,006)
|
|
| Net income/(loss) |
|
|
(370)
|
|
| October 28, 2017 |
(3,376)
|
|
(3,376)
|
|
| Accumulated Other Comprehensive Income/(Loss) [Member] |
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
| January 28, 2017 |
|
|
(473)
|
|
| Other comprehensive income/(loss) |
|
|
70
|
|
| October 28, 2017 |
$ (403)
|
|
$ (403)
|
|