RETIREMENT AND BENEFIT PLANS Amounts Recognized in Balance Sheets (Details) (USD $) In Millions, unless otherwise specified	Feb. 01, 2015	Feb. 02, 2014
Pension Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Non-current assets	$ 0	$ 49.5
Current liabilities	0	0
Non-current liabilities	(80.0)	(5.4)
Net amount recognized	(80.0)	44.1
SERP Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Non-current assets	0	0
Current liabilities	(7.1)	(6.5)
Non-current liabilities	(91.4)	(74.3)
Net amount recognized	(98.5)	(80.8)
Postretirement Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Non-current assets	0	0
Current liabilities	(2.1)	(2.1)
Non-current liabilities	(16.0)	(14.0)
Net amount recognized	$ (18.1)	$ (16.1)