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STOCK-BASED COMPENSATION STOCK BASED COMPENSATION Stock Incentive Plan (Details) - USD ($)
$ in Millions
3 Months Ended
Apr. 30, 2017
May 01, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Stock-based compensation expense $ 8.7 $ 10.3
Recognized income tax benefits associated with stock based compensation expense 2.7 2.8
Tax deduction associated with stock plan award transactions 5.5 $ 4.1
Tax deficiencies reported, stock plan awards $ 0.1