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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Feb. 28, 2021 | Aug. 30, 2020 | Feb. 27, 2022 | Feb. 28, 2021 | May 30, 2021
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |  |
Asset impairment charges |  |  | $ 72.7 | $ 4.2 |
Increase in long-lived assets | $ 27.4 |  |  |  |
Carrying amount of long-term debt (including current installments) |  |  | 8,800.0 |  | $ 8,300.0
Estimated fair value of debt |  |  | 9,540.0 |  | $ 9,760.0
Minimum |  |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |  |
Long-lived assets additional depreciation in future periods | 15 years |  |  |  |
Maximum |  |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |  |
Long-lived assets additional depreciation in future periods | 25 years |  |  |  |
Grocery & Snacks |  |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |  |
Asset impairment charges |  | $ 3.0 | 26.3 |  |
Refrigerated & Frozen |  |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |  |
Asset impairment charges |  |  | 28.9 |  |
Foodservice |  |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |  |
Asset impairment charges |  |  | $ 14.9 |  |

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