COMMITMENTS, CONTINGENCIES, GUARANTEES AND LEGAL PROCEEDINGS - Purchase Supply Agreements (Details) - Inventories - USD ($) $ in Millions	12 Months Ended
May 31, 2020	May 26, 2019	May 27, 2018
COMMITMENTS, CONTINGENCIES, GUARANTEES AND LEGAL PROCEEDINGS
Purchase supply agreement amount	$ 142.7	$ 152.0	$ 132.8
Advances	$ 31.9	$ 36.5

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_LongTermPurchaseCommitmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration