PRE-TAX INCOME AND INCOME TAXES - Schedule of the Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2020	May 26, 2019	May 27, 2018
Current
Federal	$ 188.2	$ 125.4	$ 153.1
State	25.5	22.6	17.8
Foreign	9.5	21.6	32.5
Current provision for income taxes	223.2	169.6	203.4
Deferred
Federal	37.6	40.1	(43.7)
State	(62.3)	19.0	17.4
Foreign	2.8	(9.9)	(2.5)
Deferred provision for income taxes	(21.9)	49.2	(28.8)
Total provision for income taxes	$ 201.3	$ 218.8	$ 174.6