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		9 Months Ended
	Feb. 24, 2019	Feb. 25, 2018	Feb. 24, 2019	Feb. 25, 2018
Derivatives, Fair Value [Line Items]
Total gains (losses) from derivative instruments not designated as hedging instruments	$ 0.8	$ (0.5)	$ (3.4)	$ (4.6)
Commodity contracts | Cost of goods sold
Derivatives, Fair Value [Line Items]
Total gains (losses) from derivative instruments not designated as hedging instruments	3.3	0.0	(3.3)	1.4
Foreign exchange contracts | Cost of goods sold
Derivatives, Fair Value [Line Items]
Total gains (losses) from derivative instruments not designated as hedging instruments	$ (2.5)	$ (0.5)	(0.1)	(6.3)
Foreign exchange contracts | Selling, general and administrative expense
Derivatives, Fair Value [Line Items]
Total gains (losses) from derivative instruments not designated as hedging instruments			$ 0.0	$ 0.3