RETIREMENT AND BENEFIT PLANS Benefit Obligations (Details) $ in Millions	12 Months Ended
	Feb. 02, 2020 USD ($)	Feb. 03, 2019 USD ($)	Feb. 04, 2018 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Settlement loss on retirement plans	$ 0.0	$ 0.0	$ (9.4)
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Actuarial loss (gain)	(97.8)	(15.0)	$ (2.5)
Pension Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Retiree Participants			4,000
Settlement loss on retirement plans			$ 9.4
Defined Benefit Plan, Lump Sum Settlement Payment (included in benefit payments)			65.3
Accumulated benefit obligation	751.3	598.9
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Balance at beginning of year	651.0	648.0
Service cost, net of plan expenses	31.2	31.4
Interest cost	27.9	26.0	25.7
Benefit payments	(29.2)	(26.0)
Benefit payments, net of retiree contributions	0.0	0.0
Actuarial loss (gain)	149.2	(28.4)
Balance at end of year	830.1	651.0	648.0
SERP Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated benefit obligation	99.9	81.5
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Balance at beginning of year	99.2	96.9
Service cost, net of plan expenses	5.8	5.8
Interest cost	4.3	3.9	3.8
Benefit payments	(7.9)	(6.1)
Benefit payments, net of retiree contributions	0.0	0.0
Actuarial loss (gain)	23.1	(1.3)
Balance at end of year	124.5	99.2	96.9
Postretirement Plans [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Balance at beginning of year	8.4	10.5
Service cost, net of plan expenses	0.0	0.0
Interest cost	0.3	0.4	0.4
Benefit payments	0.0	0.0
Benefit payments, net of retiree contributions	(1.0)	(1.4)
Actuarial loss (gain)	0.5	(1.1)
Balance at end of year	$ 8.2	$ 8.4	$ 10.5