LEASES - Lease Expense - Operating Leases and Finance Leases (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Feb. 23, 2020	Feb. 23, 2020
Lease expense
Total lease costs, operating leases	$ 8.7	$ 22.9
Total lease costs, finance leases	1.0	2.9
Total lease costs, net	$ 9.7	$ 25.8

Amount of lease cost recognized by lessee for lease contract.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971

Name:	us-gaap_LeaseCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration