RETIREMENT PLANS (Components Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	12 Months Ended
	May 28, 2023	May 29, 2022	May 30, 2021
Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0.0	$ 0.0	$ 0.0
Interest cost	0.1	0.1	0.1
Amortization of unrecognized prior service cost	0.0	0.0	0.0
Recognized net actuarial loss	0.1	0.1	0.1
Net pension and postretirement cost (benefit)	0.2	0.2	0.2
Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.0	0.0	0.0
Interest cost	0.7	0.4	0.6
Amortization of unrecognized prior service cost	0.0	0.0	(0.3)
Recognized net actuarial loss	0.0	0.4	1.9
Net pension and postretirement cost (benefit)	$ 0.7	$ 0.8	$ 2.2