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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Recently Adopted Accounting Guidance (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 04, 2018
Jan. 29, 2017
Jan. 31, 2016
Accounting Standards Update 2016-09 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Excess Tax Benefit from Share-based Compensation, Operating Activities $ 15.4 $ 0.9 $ 5.5
Accounting Standards Update 2018-02 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Tax Cuts And Jobs Act Of 2017, Reclassification from AOCL To Retained Earnings, Tax Effect $ 2.1    
Retained Earnings [Member] | Accounting Standards Update 2016-09 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cumulative Effect of New Accounting Principle in Period of Adoption   (0.8)  
Additional Paid-in Capital [Member] | Accounting Standards Update 2016-09 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cumulative Effect of New Accounting Principle in Period of Adoption   1.1  
Other Assets [Member] | Accounting Standards Update 2016-09 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cumulative Effect of New Accounting Principle in Period of Adoption   $ 0.3