Note 2 - Assets Held for Sale (Details Textual) - USD ($) $ in Millions	3 Months Ended
Aug. 28, 2022	Aug. 29, 2021
Asset Impairment Charges, Total	$ 412.8	$ 0.7
Selling, General and Administrative Expenses [Member] \| Grocery Snacks and Refrigerated Frozen and Foodservice Segments [Member]
Asset Impairment Charges, Total	$ 26.7

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2420-110228

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration