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RETIREMENT AND BENEFIT PLANS Accumulated and Projected Benefit Obligations in Excess of Plan Assets (Details)
$ in Millions
Jan. 29, 2017
USD ($)
plans
Jan. 31, 2016
USD ($)
plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Number of plans with projected benefit obligations in excess of plan assets | plans 2 5
Aggregate projected benefit obligation $ 34.6 $ 651.7
Aggregate fair value of related plan assets $ 34.0 $ 567.4
Number of plans with accumulated benefit obligations in excess of plan assets | plans 1 5
Aggregate accumulated benefit obligation $ 3.3 $ 610.7
Aggregate fair value of related plan assets $ 3.1 $ 567.4