GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Carrying amount of goodwill (Details) $ in Millions	9 Months Ended
	Feb. 26, 2017 USD ($)
Goodwill [Roll Forward]
Balance at the beginning	$ 133.9
Foreign currency translation adjustment	(1.2)
Balance at the end	132.7
Global
Goodwill [Roll Forward]
Balance at the beginning	75.7
Foreign currency translation adjustment	(1.2)
Balance at the end	74.5
Foodservice
Goodwill [Roll Forward]
Balance at the beginning	42.8
Balance at the end	42.8
Retail
Goodwill [Roll Forward]
Balance at the beginning	10.9
Balance at the end	10.9
Other
Goodwill [Roll Forward]
Balance at the beginning	4.5
Balance at the end	$ 4.5