Stock-Based Compensation (Stock Options Activity) (Details)
$ / shares in Units, shares in Thousands |
12 Months Ended |
|
Jan. 30, 2016
USD ($)
$ / shares
shares
|
|---|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |
|
|
| Outstanding stock options, beginning balance | shares |
14,575
|
|
| Stock Options, Granted | shares |
5,119
|
|
| Stock Options, Exercised | shares |
(4)
|
|
| Stock Options, Forfeited/canceled | shares |
(3,594)
|
|
| Outstanding stock options, ending balance | shares |
16,096
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |
|
|
| Weighted-Average Exercise Price Per Share, beginning balance | $ / shares |
$ 32
|
|
| Weighted-Average Exercise Price Per Share, Granted | $ / shares |
8
|
|
| Weighted-Average Exercise Price Per Share, Exercised | $ / shares |
8
|
|
| Weighted-Average Exercise Price Per Share, Forfeited/canceled | $ / shares |
32
|
|
| Weighted-Average Exercise Price Per Share, ending balance | $ / shares |
$ 24
|
|
| Weighted-Average Remaining Contractual Term, Outstanding |
5 years 2 months
|
|
| Aggregate Intrinsic Value, Outstanding | $ |
$ 100,000.0
|
[1] |
| Stock Options, Exercisable | shares |
9,170
|
|
| Weighted-Average Exercise Price Per Share, Exercisable | $ / shares |
$ 36
|
|
| Weighted-Average Remaining Contractual Term, Exercisable |
2 years 9 months
|
|
|
|