LEASES - Assets and Liabilities - Tabular Disclosure (Details) - USD ($) $ in Millions	Aug. 25, 2019	May 27, 2019
Assets and liabilities
Operating leases	$ 160.3	$ 154.1
Finance leases	$ 12.3
Finance leases, consolidated balance sheet	us-gaap:PropertyPlantAndEquipmentNet
Total right-of-use assets	$ 172.6
Operating leases, current	$ 24.3
Operating leases, current, consolidated balance sheet	us-gaap:AccruedLiabilitiesCurrent
Operating leases, noncurrent	$ 139.1
Operating leases, noncurrent, consolidated balance sheet	us-gaap:OtherLiabilitiesNoncurrent
Total operating leases	$ 163.4	$ 155.5
Finance leases, current	$ 2.8
Finance leases, current, consolidated balance sheet	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
Finance leases, noncurrent	$ 11.2
Finance leases, noncurrent, consolidated balance sheet	us-gaap:LongTermDebtAndCapitalLeaseObligations
Total finance leases	$ 14.0
Total lease liability	$ 177.4