PRE-TAX INCOME AND INCOME TAXES - Schedule of Pre-Tax Income from Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	May 27, 2018	May 28, 2017	May 29, 2016
Income Tax Contingency [Line Items]
Total before tax	$ 972.1	$ 800.7	$ 174.9
United States
Income Tax Contingency [Line Items]
Total before tax	902.5	883.5	136.9
Foreign
Income Tax Contingency [Line Items]
Total before tax	$ 69.6	$ (82.8)	$ 38.0