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Note 7 - Derivative Financial Instruments - Net Derivative Gains (Losses) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Nov. 26, 2023 | Nov. 27, 2022 | Nov. 26, 2023 | Nov. 27, 2022
Net derivative gains (losses) | $ (10.0) | $ 5.2 | $ 9.5 | $ 14.7
Operating Segments [Member] |  |  |  |
Net derivative gains (losses) | 1.2 | 7.6 | (6.9) | 16.6
Operating Segments [Member] | Grocery And Snacks [Member] |  |  |  |
Net derivative gains (losses) | 0.7 | 2.5 | (3.2) | 7.5
Operating Segments [Member] | Refrigerated And Frozen [Member] |  |  |  |
Net derivative gains (losses) | 2.1 | 4.3 | (0.2) | 7.6
Operating Segments [Member] | International [Member] |  |  |  |
Net derivative gains (losses) | (2.0) | 0.6 | (3.6) | 0.7
Operating Segments [Member] | Foodservice [Member] |  |  |  |
Net derivative gains (losses) | 0.4 | 0.2 | 0.1 | 0.8
Corporate, Non-Segment [Member] |  |  |  |
Net derivative gains (losses) | $ (11.2) | $ (2.4) | $ 16.4 | $ (1.9)

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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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