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DIVESTITURES AND ASSETS HELD FOR SALE - Private Brands Operations (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
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May 30, 2021 | May 31, 2020 | May 26, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Loss from discontinued operations, net of tax | $ 0.0 | $ 0.0 | $ (1.9)
Private Brands | Discontinued operations |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Loss from discontinued operations, net of tax |  |  | $ 0.9

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