LONG-TERM DEBT AND REVOLVING CREDIT FACILITY (Net Interest Expense) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 29, 2015	Nov. 23, 2014	Nov. 29, 2015	Nov. 23, 2014
Debt Disclosure [Abstract]
Long-term debt	$ 80.7	$ 79.5	$ 163.0	$ 164.6
Short-term debt	0.6	0.8	0.8	1.3
Interest income	(0.1)	(0.3)	(0.3)	(0.8)
Interest capitalized	(1.6)	(1.3)	(3.6)	(3.1)
Interest expense, net	$ 79.6	$ 78.7	$ 159.9	$ 162.0