RETIREMENT AND BENEFIT PLANS Pre-tax AOCI Expected to be Recognized in Next Fiscal Year (Details) $ in Millions	12 Months Ended
	Jan. 31, 2016 USD ($)
Pension Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service (cost) credit	$ 0.0
SERP Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service (cost) credit	0.1
Postretirement Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service (cost) credit	$ 0.3