Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions |
12 Months Ended |
|
Jan. 28, 2017 |
Jan. 30, 2016 |
Jan. 31, 2015 |
May 20, 2016 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Paid |
$ 22
|
|
|
|
| Stock options and restricted stock, percent of total outstanding stock |
2.70%
|
|
|
|
| Stock options, weighted average grant date fair value |
$ 4.89
|
$ 3.48
|
$ 3.78
|
|
| Long-Term Incentive Plan, 2016 [Member] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Long-term incentive plan, shares available for future grant |
18,400,000
|
|
|
|
| Stock Awards [Member] | Long-Term Incentive Plan, 2016 [Member] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Long-term incentive plan, shares reserved for future grants |
|
|
|
12,250,000.00
|
| Stock Option Award [Member] | Long-Term Incentive Plan, 2016 [Member] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Long-term incentive plan, shares reserved for future grants |
|
|
|
19,600,000.0
|
| Stock Options [Member] |
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
| Unrecognized compensation expense |
$ 12
|
|
|
|
| Weighted average period over which unrecognized compensation is expected to be recognized (years) |
2 years
|
|
|
|