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STOCK-BASED COMPENSATION Stock Incentive Plan (Details) - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Feb. 03, 2019
Feb. 04, 2018
Jan. 29, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 5.1    
Stock-based compensation expense $ 56.2 $ 44.9 $ 38.2
Recognized income tax benefits associated with stock-based compensation expense 8.9 8.8 11.5
Tax deduction associated with stock plan award transactions 13.2 27.2 6.6
Net excess tax benefit from awards under stock plans $ 4.9 $ 15.4  
Net excess tax deficiency from awards under stock plans     7.2
Additional Paid-in Capital [Member] | Accounting Standards Update 2016-09 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cumulative Effect of New Accounting Principle in Period of Adoption     1.1
Retained Earnings [Member] | Accounting Standards Update 2016-09 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cumulative Effect of New Accounting Principle in Period of Adoption     (0.8)
Other Assets [Member] | Accounting Standards Update 2016-09 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cumulative Effect of New Accounting Principle in Period of Adoption     $ 0.3