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STOCK-BASED COMPENSATION Stock Incentive Plan (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 04, 2018
Jan. 29, 2017
Jan. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation expense $ 44.9 $ 38.2 $ 42.0
Recognized income tax benefits associated with stock-based compensation expense 8.8 11.5 10.7
Tax deduction associated with stock plan award transactions 27.2 6.6 10.2
Tax benefits from awards under stock plans     4.8
Tax deficiency from awards under stock plans   7.2  
Accounting Standards Update 2016-09 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Excess Tax Benefit from Share-based Compensation, Operating Activities $ 15.4 $ 0.9 $ 5.5