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Share-Based Compensation (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Nov. 01, 2014
Nov. 02, 2013
Nov. 01, 2014
Nov. 02, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense $ 6.0 $ 13.3 $ 17.4 $ 40.2
Tax benefit recognized related to share-based compensation expense 2.3 5.0 6.6 15.3
Stock Appreciation Rights (SARs)
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total unrecognized compensation cost, net of estimated forfeitures 8.4   8.4  
Total intrinsic value of awards exercised     1.5 8.5
Grant date fair value of award other than options vested during the period     7.3 25.0
Performance and Service Conditions | Stock Appreciation Rights (SARs)
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost, weighted-average period of recognition     16 months  
Performance and Service Conditions | Restricted Stock Units (RSUs)
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total unrecognized compensation cost, net of estimated forfeitures 30.4   30.4  
Unrecognized compensation cost, weighted-average period of recognition     15 months  
Grant date fair value of award other than options vested during the period     17.0 14.6
Fair value of awards granted during the period     22.0 33.3
Market Conditions | Restricted Stock Units (RSUs)
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total unrecognized compensation cost, net of estimated forfeitures 2.6   2.6  
Unrecognized compensation cost, weighted-average period of recognition     11 months  
Fair value of awards granted during the period     $ 3.6