LEASES - Assets and Liabilities - Tabular Disclosure (Details) - USD ($) $ in Millions	May 31, 2020	May 27, 2019
Assets and liabilities
Operating leases	$ 167.0	$ 155.0
Finance leases	$ 11.3
Finance leases, consolidated balance sheet	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
Total right-of-use assets	$ 178.3
Operating leases, current	$ 28.4
Operating leases, current, consolidated balance sheet	us-gaap:AccruedLiabilitiesCurrent
Operating leases, noncurrent	$ 144.6
Operating leases, noncurrent, consolidated balance sheet	us-gaap:OtherLiabilitiesNoncurrent
Total operating leases	$ 173.0
Finance leases, current	$ 2.8
Finance leases, current, consolidated balance sheet	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
Finance leases, noncurrent	$ 10.5
Finance leases, noncurrent, consolidated balance sheet	us-gaap:LongTermDebtAndCapitalLeaseObligations
Total finance leases	$ 13.3
Total lease liability	$ 186.3