Quarterly report pursuant to Section 13 or 15(d)

BASIS OF PRESENTATION (Company Adopted Accounting Standards Update) (Details)

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BASIS OF PRESENTATION (Company Adopted Accounting Standards Update) (Details) - USD ($)
$ in Millions
3 Months Ended
Apr. 30, 2016
May. 02, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Decrease in operating assets and liabilities $ 96.0 $ (2.1)
Increase to cash paid for taxes on exercises/vesting of stock-based compesnation $ 18.4 20.6
Accounting Standards Update 2016-09 [Member]    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Decrease in operating assets and liabilities   $ 20.6