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		6 Months Ended
	Nov. 25, 2018	Nov. 26, 2017	Nov. 25, 2018	Nov. 26, 2017
Derivatives, Fair Value [Line Items]
Total gains (losses) from derivative instruments not designated as hedging instruments	$ 2.3	$ 3.0	$ (4.2)	$ (4.1)
Commodity contracts | Cost of goods sold
Derivatives, Fair Value [Line Items]
Total gains (losses) from derivative instruments not designated as hedging instruments	0.5	0.8	(6.5)	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	$ 1.8	$ 2.2	2.3	(5.8)
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