RETIREMENT AND BENEFIT PLANS (Details) $ in Millions	12 Months Ended
	Jan. 29, 2017 USD ($) plans	Jan. 31, 2016 USD ($)	Feb. 01, 2015 USD ($)
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Health care cost trend rate assumed for next fiscal year	7.83%
Assumed annual reduction in health care cost trend rate until ultimate trend rate	0.17%
Ultimate health care cost trend rate	4.48%
Defined benefit plan, one percentage point change in assumed health care cost trend rates	1.00%
Company contributions to saving and retirement plans, supplemental savings plan and defined contribution plan	$ 19.7	$ 18.2	$ 20.3
Pension Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Number of Noncontributory Defined Benefit Pension Plans | plans	5
Non-contributory defined benefit pension plans, vesting period	5 years
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost, including plan expenses	$ 25.2	30.6	20.0
Interest cost	29.8	27.8	28.5
Actuarial (gain) loss	(35.4)	(10.1)	121.8
Expected return on plan assets	(35.9)	(42.5)	(43.5)
Amortization of prior service cost (credit)	0.0	0.0	0.0
Total	$ (16.3)	5.8	126.8
SERP Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Number of Noncontributory Defined Benefit Pension Plans | plans	3
Plan Benefit Payment Period	10 years
Plan benefit payment activation age	65
Minimum age prior to employment termination	55
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost, including plan expenses	$ 4.4	5.6	4.5
Interest cost	3.9	3.7	4.0
Actuarial (gain) loss	(0.7)	(9.1)	13.9
Expected return on plan assets	0.0	0.0	0.0
Amortization of prior service cost (credit)	(0.1)	(0.1)	(0.1)
Total	$ 7.5	0.1	22.3
Minimum Number of Years of Employment	10 years
Postretirement Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Minimum age prior to employment termination	55
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost, including plan expenses	$ 0.0	0.0	0.0
Interest cost	0.5	0.6	0.8
Actuarial (gain) loss	(3.0)	(1.0)	3.2
Expected return on plan assets	0.0	0.0	0.0
Amortization of prior service cost (credit)	(0.3)	(0.4)	(0.8)
Total	$ (2.8)	$ (0.8)	$ 3.2
Minimum Number of Years of Employment	10 years
United States Equities [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Target allocation percentage of assets, equity securities	40.00%
International Equities [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Target allocation percentage of assets, equity securities	20.00%
Fixed Income Securities [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Target allocation percentage of assets, equity securities	40.00%