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RETIREMENT AND BENEFIT PLANS Amounts Recognized in Balance Sheets (Details) - USD ($)
$ in Millions
Jan. 31, 2016
Feb. 01, 2015
Pension Plans [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Current liabilities $ 0.0 $ 0.0
Non-current liabilities (84.3) (80.0)
Net amount recognized (84.3) (80.0)
SERP Plans [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Current liabilities (7.5) (7.1)
Non-current liabilities (81.1) (91.4)
Net amount recognized (88.6) (98.5)
Postretirement Plans [Member]    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Current liabilities (1.9) (2.1)
Non-current liabilities (13.9) (16.0)
Net amount recognized $ (15.8) $ (18.1)