Note 6 - Derivative Financial Instruments - Schedule of Location and Amount of Gain (Loss) from Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 27, 2023	Aug. 28, 2022
Total gains from derivative instruments not designated as hedging instruments	$ 19.5	$ 9.5
Commodity Contract [Member] | Cost of Sales [Member]
Total gains from derivative instruments not designated as hedging instruments	22.5	6.3
Foreign Exchange Contract [Member] | Cost of Sales [Member]
Total gains from derivative instruments not designated as hedging instruments	$ (3.0)	$ 3.2