DIVESTITURES AND ASSETS HELD FOR SALE - Schedule of Assets and Liabilities Classified as Held for Sale (Details) - USD ($) $ in Millions	May 30, 2021	May 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets held for sale		$ 13.1
Noncurrent assets held for sale	$ 4.6	115.4
Held for sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current liabilities held for sale		18.5
Held for sale | Egg Beaters Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets held for sale		3.0
Noncurrent assets held for sale		48.1
Current liabilities held for sale		13.1
Held for sale | Peter Pan Peanut Butter Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets held for sale		8.8
Noncurrent assets held for sale		55.3
Current liabilities held for sale		5.4
Held for sale | H.K. Anderson Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets held for sale		1.3
Noncurrent assets held for sale		$ 2.6