DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Location and Amount of Gains (Losses) from Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 30, 2020	Aug. 25, 2019
Derivatives, Fair Value [Line Items]
Total losses from derivative instruments not designated as hedging instruments	$ (4.0)	$ (7.3)
Commodity contracts | Cost of goods sold
Derivatives, Fair Value [Line Items]
Total losses from derivative instruments not designated as hedging instruments	1.2	(6.4)
Foreign exchange contracts | Cost of goods sold
Derivatives, Fair Value [Line Items]
Total losses from derivative instruments not designated as hedging instruments	$ (5.2)	$ (0.9)