DERIVATIVE FINANCIAL INSTRUMENTS - Net derivative gains (losses) (Details) - USD ($) $ in Millions	12 Months Ended
May 25, 2025	May 26, 2024	May 28, 2023
DERIVATIVE FINANCIAL INSTRUMENTS
Gross derivative gains (losses) incurred	$ 6.8	$ 2.9	$ (17.6)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax
Grocery & Snacks
DERIVATIVE FINANCIAL INSTRUMENTS
Gross derivative gains (losses) incurred	$ (4.8)	$ (6.1)	$ 6.0
Refrigerated & Frozen
DERIVATIVE FINANCIAL INSTRUMENTS
Gross derivative gains (losses) incurred	(3.1)	(1.2)	9.6
International
DERIVATIVE FINANCIAL INSTRUMENTS
Gross derivative gains (losses) incurred	7.1	(5.6)	2.5
Food service
DERIVATIVE FINANCIAL INSTRUMENTS
Gross derivative gains (losses) incurred	(0.6)	(0.3)	1.4
Operating Segments
DERIVATIVE FINANCIAL INSTRUMENTS
Gross derivative gains (losses) incurred	(1.4)	(13.2)	19.5
Corporate, Non-Segment
DERIVATIVE FINANCIAL INSTRUMENTS
Gross derivative gains (losses) incurred	$ 8.2	$ 16.1	$ (37.1)

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E

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