DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Location and Amount of Gains (Losses) from Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	12 Months Ended
	May 26, 2019	May 27, 2018	May 28, 2017
Derivatives, Fair Value [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Consolidated Statement of Operations	$ (3.6)	$ (0.6)	$ 0.8
Commodity contracts | Cost of goods sold
Derivatives, Fair Value [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Consolidated Statement of Operations	(5.3)	3.0	0.9
Foreign exchange contracts | Cost of goods sold
Derivatives, Fair Value [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Consolidated Statement of Operations	$ 1.7	(3.9)	(0.3)
Foreign exchange contracts | Selling, general and administrative expense
Derivatives, Fair Value [Line Items]
Amount of Gain (Loss) Recognized on Derivatives in Consolidated Statement of Operations		$ 0.3	$ 0.2