EMPLOYEE BENEFIT PLANS AND OTHER POST-RETIREMENT BENEFITS - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	12 Months Ended
	May 29, 2022	May 30, 2021	May 31, 2020
Components of net periodic benefit cost for our pension and postretirement benefit plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income	Selling, general and administrative expenses	Selling, general and administrative expenses	Selling, general and administrative expenses
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income	Selling, general and administrative expenses	Selling, general and administrative expenses	Selling, general and administrative expenses
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible	Selling, general and administrative expenses	Selling, general and administrative expenses	Selling, general and administrative expenses
Pension Plans
Components of net periodic benefit cost for our pension and postretirement benefit plans
Service cost	$ 2.1	$ 3.0	$ 3.1
Interest cost	1.3	1.2	1.1
Expected return on plan assets	(1.2)	(0.8)	(0.9)
Actuarial loss	0.4	0.1	0.2
Net periodic benefit cost	2.6	3.5	3.5
Post-Retirement Plan
Components of net periodic benefit cost for our pension and postretirement benefit plans
Interest cost	0.1	0.1	0.2
Actuarial loss		0.2	0.6
Net periodic benefit cost	$ 0.1	$ 0.3	$ 0.8