DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Location and Amount of Gain (Loss) from Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	3 Months Ended
Aug. 25, 2019	Aug. 26, 2018
Derivatives, Fair Value [Line Items]
Total losses from derivative instruments not designated as hedging instruments	$ (7.3)	$ (6.5)
Commodity contracts \| Cost of goods sold
Derivatives, Fair Value [Line Items]
Total losses from derivative instruments not designated as hedging instruments	(6.4)	(7.0)
Foreign exchange contracts \| Cost of goods sold
Derivatives, Fair Value [Line Items]
Total losses from derivative instruments not designated as hedging instruments	$ (0.9)	$ 0.5

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959

Name:	us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration