LONG-TERM DEBT AND REVOLVING CREDIT FACILITY - Net Interest Expense from Continuing Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 27, 2016	Nov. 29, 2015	Nov. 27, 2016	Nov. 29, 2015
Debt Disclosure [Abstract]
Long-term debt	$ 56.6	$ 80.2	$ 117.5	$ 162.2
Short-term debt	0.2	0.6	0.4	0.8
Interest income	(0.8)	0.0	(1.5)	(0.1)
Interest capitalized	(1.9)	(1.6)	(4.1)	(3.6)
Interest expense, net	$ 54.1	$ 79.2	$ 112.3	$ 159.3