INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 26, 2018	Aug. 27, 2017	May 27, 2018
Income Tax Contingency [Line Items]
Income tax expense	$ 57.4	$ 120.0
Effective tax rate	24.40%	43.90%
Gross unrecognized tax benefits for uncertain tax positions	$ 33.0		$ 32.5
Related liabilities for gross interest and penalties	7.9		7.7
Net amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate	28.2		27.8
Net amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate, discontinued operations	6.7
Gross unrecognized tax benefits, estimated decrease over the next twelve months (up to)	15.3
Deferred tax asset	721.6		721.6
Corresponding valuation allowances	$ 721.6		$ 721.6