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Note 18 - Fair Value Measurements (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 28, 2022 | May 28, 2023 | May 29, 2022 | May 30, 2021
Asset Impairment Charges |  | $ 771.1 | $ 284.8 | $ 95.5
Goodwill, Impairment Loss |  | 141.7 |  |
Long-Term Debt, Total |  | 8,600.0 | 8,800.0 |
Long-Term Debt, Fair Value |  | 8,310.0 | 8,850.0 |
Grocery And Snacks [Member] |  |  |  |
Asset Impairment Charges |  | 0.5 | 26.3 |
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) |  | 78.9 | 90.7 | 13.0
Goodwill, Impairment Loss |  | (0.0) |  |
Impairment, Long-Lived Asset, Held-for-Use, Total |  |  |  | 3.0
Refrigerated And Frozen [Member] |  |  |  |
Asset Impairment Charges |  | 5.7 | 28.9 |
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) |  | 496.6 | 103.9 | 76.9
Goodwill, Impairment Loss |  | 141.7 |  |
International [Member] |  |  |  |
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill) |  | 13.7 | 14.4 | $ 1.0
Goodwill, Impairment Loss |  | (0.0) |  |
Foodservice [Member] |  |  |  |
Asset Impairment Charges |  | 20.5 | $ 14.9 |
Goodwill, Impairment Loss |  | (0.0) |  |
Selling, General and Administrative Expenses [Member] | Refrigerated And Frozen [Member] |  |  |  |
Goodwill, Impairment Loss | $ 141.7 | 141.7 |  |
Selling, General and Administrative Expenses [Member] | Convertible Note Receivable [Member] |  |  |  |
Asset Impairment Charges |  | $ 3.9 |  |

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