RETIREMENT AND BENEFIT PLANS Net Benefit Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 04, 2018	Jan. 29, 2017	Jan. 31, 2016
Pension Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost, including plan expenses	$ 27.3	$ 25.2	$ 30.6
Interest cost	25.7	29.8	27.8
Actuarial (gain) loss	(3.9)	(35.4)	(10.1)
Expected return on plan assets	(38.6)	(35.9)	(42.5)
Amortization of prior service cost (credit)	0.1	0.0	0.0
Curtailment gain	(0.3)	0.0	0.0
Settlement loss	9.4	0.0	0.0
Total	19.7	(16.3)	5.8
SERP Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost, including plan expenses	4.5	4.4	5.6
Interest cost	3.8	3.9	3.7
Actuarial (gain) loss	6.1	(0.7)	(9.1)
Expected return on plan assets	0.0	0.0	0.0
Amortization of prior service cost (credit)	0.0	(0.1)	(0.1)
Curtailment gain	0.0	0.0	0.0
Settlement loss	0.0	0.0	0.0
Total	14.4	7.5	0.1
Postretirement Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost, including plan expenses	0.0	0.0	0.0
Interest cost	0.4	0.5	0.6
Actuarial (gain) loss	0.3	(3.0)	(1.0)
Expected return on plan assets	0.0	0.0	0.0
Amortization of prior service cost (credit)	0.0	(0.3)	(0.4)
Curtailment gain	0.0	0.0	0.0
Settlement loss	0.0	0.0	0.0
Total	$ 0.7	$ (2.8)	$ (0.8)