RETIREMENT AND BENEFIT PLANS Net Benefit Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 02, 2020	Feb. 03, 2019	Feb. 04, 2018
Pension Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost, including plan expenses	$ 33.5	$ 33.7	$ 27.3
Interest cost	27.9	26.0	25.7
Actuarial loss (gain)	74.2	17.4	(3.9)
Expected return on plan assets	(40.3)	(40.3)	(38.6)
Amortization of prior service cost	0.0	0.1	0.1
Curtailment gain	0.0	0.0	(0.3)
Settlement loss	0.0	0.0	9.4
Total	95.3	36.9	19.7
SERP Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost, including plan expenses	5.8	5.8	4.5
Interest cost	4.3	3.9	3.8
Actuarial loss (gain)	23.1	(1.3)	6.1
Expected return on plan assets	0.0	0.0	0.0
Amortization of prior service cost	0.0	0.0	0.0
Curtailment gain	0.0	0.0	0.0
Settlement loss	0.0	0.0	0.0
Total	33.2	8.4	14.4
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	0.3	0.4	0.4
Actuarial loss (gain)	0.5	(1.1)	0.3
Expected return on plan assets	0.0	0.0	0.0
Amortization of prior service cost	0.0	0.0	0.0
Curtailment gain	0.0	0.0	0.0
Settlement loss	0.0	0.0	0.0
Total	$ 0.8	$ (0.7)	$ 0.7