PRE-TAX INCOME AND INCOME TAXES - Schedule of Pre-Tax Income from Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2020	May 26, 2019	May 27, 2018
Income Tax Contingency [Line Items]
Total before tax	$ 1,043.1	$ 899.1	$ 972.1
United States
Income Tax Contingency [Line Items]
Total before tax	978.3	826.6	902.5
Foreign
Income Tax Contingency [Line Items]
Total before tax	$ 64.8	$ 72.5	$ 69.6