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DERIVATIVE FINANCIAL INSTRUMENTS - Net derivative gains (losses) (Details) - USD ($) $ in Millions | 12 Months Ended
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May 26, 2024 | May 28, 2023 | May 29, 2022
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative Gain (Loss) | $ 2.9 | $ (17.6) | $ 37.1
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Unrealized derivative adjustments, after-tax amount | Unrealized derivative adjustments, after-tax amount | Unrealized derivative adjustments, after-tax amount
Grocery And Snacks |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative Gain (Loss) | $ (6.1) | $ 6.0 | $ 17.3
Refrigerated And Frozen |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative Gain (Loss) | (1.2) | 9.6 | 17.4
International |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative Gain (Loss) | (5.6) | 2.5 | (3.6)
Foodservice |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative Gain (Loss) | (0.3) | 1.4 | 1.6
Operating Segments |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative Gain (Loss) | (13.2) | 19.5 | 32.7
Corporate, Non-Segment |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative Gain (Loss) | $ 16.1 | $ (37.1) | $ 4.4

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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 -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4A + Details
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