Stock-Based Compensation (Narrative) (Details) - USD ($)
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3 Months Ended |
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Apr. 29, 2017 |
Apr. 30, 2016 |
May 17, 2017 |
Jan. 28, 2017 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Tax benefit related to stock-based compensation |
$ 7,000,000
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$ 6,100,000
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| Plan participant's annual percentage ceiling for ESPP (up to) |
10.00%
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| Plan participant's annual dollar amount ceiling for ESPP (up to) |
$ 25,000
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| Purchase price for shares under the ESPP (as a percentage) |
85.00%
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| Discount rate under the ESPP (as a percentage) |
15.00%
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| Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Treasury shares purchased for tax withholding and available for reissuance (in shares) |
576,813
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636,997
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| Unvested restricted stock (in shares) |
5,319,000
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|
5,563,000
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| Unamortized compensation expense |
$ 144,600,000
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$ 130,200,000
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| Unamortized compensation expense, remaining weighted-average period of recognition (in years) |
2 years 4 months 16 days
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2 years 4 months 16 days
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| Stock Options [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Granted (in shares) |
0
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0
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| Minimum [Member] | Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Restricted stock vesting period (in years) |
3 years
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| Minimum [Member] | Performance Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Requisite service period (in years) |
2 years
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| Maximum [Member] | Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Restricted stock vesting period (in years) |
5 years
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| Maximum [Member] | Performance Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Requisite service period (in years) |
3 years
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| Subsequent Event [Member] | 2017 Equity Incentive Plan [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Number of shares available for grant (in shares) |
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|
12,000,000
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