LEASES - Components of Total Lease Cost (Details) $ in Millions	3 Months Ended
	Aug. 25, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 18.0
Finance lease cost
Depreciation of leased assets	3.8
Interest on lease liabilities	2.3
Short-term lease costs	0.7
Total lease cost	$ 24.8