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DIVESTITURES AND ASSETS HELD FOR SALE - Schedule of Assets and Liabilities Classified as Held for Sale (Details) - USD ($) $ in Millions | May 31, 2020 | May 26, 2019
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Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Current assets held for sale |  | $ 36.7
Noncurrent assets held for sale | $ 3.1 | 262.4
Held for sale |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Current assets held for sale |  | 9.9
Noncurrent assets held for sale |  | 35.7
Current liabilities held for sale |  | 5.1
Lender's Bagel Business | Held for sale |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Current assets held for sale |  | 5.4
Noncurrent assets held for sale |  | 62.3
Current liabilities held for sale |  | 0.5
DSD Snacks Business | Held for sale |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Current assets held for sale |  | 21.4
Noncurrent assets held for sale |  | 156.2
Current liabilities held for sale |  | $ 4.6

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