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BUSINESS SEGMENTS AND RELATED INFORMATION - Schedule of Net Derivative Gains (Losses) from Economic Hedges of Forecasted Commodity Consumption and Foreign Currency Risk (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 28, 2021 | Nov. 29, 2020 | Nov. 28, 2021 | Nov. 29, 2020
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gross derivative gains (losses) incurred |  |  | $ 14.0 |
Commodity Contracts and Foreign Currency Contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gross derivative gains (losses) incurred | $ 7.0 | $ 0.1 | 17.2 | $ (3.9)
Commodity Contracts and Foreign Currency Contracts | Reporting segments |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gross derivative gains (losses) incurred | 8.8 | (3.2) | 13.8 | (4.7)
Commodity Contracts and Foreign Currency Contracts | Reporting segments | Grocery & Snacks |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gross derivative gains (losses) incurred | 4.7 | (2.6) | 7.9 | (4.4)
Commodity Contracts and Foreign Currency Contracts | Reporting segments | Net derivative gains (losses) allocated to Refrigerated & Frozen |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gross derivative gains (losses) incurred | 4.6 | (0.9) | 9.3 | (2.0)
Commodity Contracts and Foreign Currency Contracts | Reporting segments | Net derivative gains (losses) allocated to International |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gross derivative gains (losses) incurred | (0.7) | 0.8 | (3.9) | 2.4
Commodity Contracts and Foreign Currency Contracts | Reporting segments | Net derivative gains (losses) allocated to Foodservice |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gross derivative gains (losses) incurred | 0.2 | (0.5) | 0.5 | (0.7)
Commodity Contracts and Foreign Currency Contracts | Corporate |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gross derivative gains (losses) incurred | $ (1.8) | $ 3.3 | $ 3.4 | $ 0.8

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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