Note 7 - Derivative Financial Instruments - Net Derivative Gains (Losses) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Feb. 25, 2024 |
Feb. 26, 2023 |
Feb. 25, 2024 |
Feb. 26, 2023 |
|
| Net derivative gains (losses) | $ (8.3) | $ (16.8) | $ 1.2 | $ (2.1) |
| Operating Segments [Member] | ||||
| Net derivative gains (losses) | (1.5) | 5.9 | (8.4) | 22.5 |
| Operating Segments [Member] | Grocery And Snacks [Member] | ||||
| Net derivative gains (losses) | (0.6) | 1.0 | (3.8) | 8.5 |
| Operating Segments [Member] | Refrigerated And Frozen [Member] | ||||
| Net derivative gains (losses) | (0.2) | 3.0 | (0.4) | 10.6 |
| Operating Segments [Member] | International [Member] | ||||
| Net derivative gains (losses) | (0.7) | 1.5 | (4.3) | 2.2 |
| Operating Segments [Member] | Foodservice [Member] | ||||
| Net derivative gains (losses) | 0.0 | 0.4 | 0.1 | 1.2 |
| Corporate, Non-Segment [Member] | ||||
| Net derivative gains (losses) | $ (6.8) | $ (22.7) | $ 9.6 | $ (24.6) |