RETIREMENT AND BENEFIT PLANS Benefit Obligations (Details) $ in Millions	12 Months Ended
	Feb. 03, 2019 USD ($)	Feb. 04, 2018 USD ($)	Jan. 29, 2017 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Settlement loss on retirement plans	$ 0.0	$ (9.4)	$ 0.0
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Actuarial (gain) loss	$ (15.0)	(2.5)	39.1
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)	0.0	65.3
Accumulated benefit obligation	598.9	595.6
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Balance at beginning of year	648.0	627.5
Service cost, net of plan expenses	31.4	26.3
Interest cost	26.0	25.7	29.8
Benefit payments	(26.0)	(29.4)
Benefit payments, net of retiree contributions	0.0	0.0
Plan curtailments	0.0	(0.3)
Actuarial (gain) loss	(28.4)	63.5
Balance at end of year	651.0	648.0	627.5
SERP Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Lump Sum Settlement Payment (included in benefit payments)	0.0	0.0
Accumulated benefit obligation	81.5	79.6
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Balance at beginning of year	96.9	87.6
Service cost, net of plan expenses	5.8	4.5
Interest cost	3.9	3.8	3.9
Benefit payments	(6.1)	(5.1)
Benefit payments, net of retiree contributions	0.0	0.0
Plan curtailments	0.0	0.0
Actuarial (gain) loss	(1.3)	6.1
Balance at end of year	99.2	96.9	87.6
Postretirement Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Lump Sum Settlement Payment (included in benefit payments)	0.0	0.0
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Balance at beginning of year	10.5	11.4
Service cost, net of plan expenses	0.0	0.0
Interest cost	0.4	0.4	0.5
Benefit payments	0.0	0.0
Benefit payments, net of retiree contributions	(1.4)	(1.6)
Plan curtailments	0.0	0.0
Actuarial (gain) loss	(1.1)	0.3
Balance at end of year	$ 8.4	$ 10.5	$ 11.4