SEGMENTS - Tabular Disclosure (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2021	Feb. 23, 2020	Feb. 28, 2021	Feb. 23, 2020
Segment information
Net sales	$ 895.8	$ 937.3	$ 2,663.4	$ 2,945.5
Product contribution margin	191.3	243.8	624.9	766.7
Advertising and promotion expenses	5.4	6.6	9.1	17.4
Gross profit	196.7	250.4	634.0	784.1
Selling, general and administrative expenses	96.1	87.9	258.1	258.1
Income from operations	100.6	162.5	375.9	526.0
Interest expense, net	29.3	25.2	89.6	78.8
Income tax expense	16.3	35.7	76.2	115.1
Equity method investment earnings	11.1	9.8	42.2	35.4
Net income	66.1	111.4	252.3	367.5
Global
Segment information
Net sales	478.5	487.1	1,401.9	1,544.3
Product contribution margin	79.3	109.3	249.8	341.0
Foodservice
Segment information
Net sales	219.5	283.0	697.3	893.3
Product contribution margin	70.2	99.8	243.7	313.5
Retail
Segment information
Net sales	162.5	132.2	457.1	393.6
Product contribution margin	33.1	28.8	99.0	86.2
Other
Segment information
Net sales	35.3	35.0	107.1	114.3
Product contribution margin	$ 8.7	$ 5.9	$ 32.4	$ 26.0