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DIVESTITURES AND ASSETS HELD FOR SALE - Narrative (Details) - USD ($) $ in Millions	3 Months Ended					9 Months Ended
	Feb. 27, 2022	Nov. 28, 2021	May 30, 2021	Feb. 28, 2021	Nov. 29, 2020	Feb. 27, 2022	Feb. 28, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures, net of cash divested						$ 0.1	$ 112.2
Gain from sales of business						0.0	55.0
Impairment charge						$ 72.7	$ 4.2
Other Assets Held for Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment charge	$ 30.9	$ 39.2
Egg Beaters Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures, net of cash divested			$ 50.7
Peter Pan Peanut Butter Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures, net of cash divested				$ 101.5
Peter Pan Peanut Butter Business \| SG&A Expenses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain from sales of business				$ 49.7
H.K. Anderson Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures, net of cash divested					$ 8.7
Gain from sales of business					$ 5.3