Note 10 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Aug. 28, 2022	Aug. 29, 2021	May 29, 2022
Income Tax Expense (Benefit), Total	$ 14.4	$ 69.7
Effective Income Tax Rate Reconciliation, Percent, Total	22.80%	22.80%
Goodwill, Impairment Loss	$ 141.7
Goodwill, Impairment Loss, Tax Benefit	2.7
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	68.0		$ 62.9
Unrecognized Tax Benefits, Deductibility Is Highly Certain	0.2
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	6.7		6.7
Unrecognized Tax Benefits, Ending Balance	62.9		$ 58.0
Decrease in Unrecognized Tax Benefits is Reasonably Possible	7.0
Deferred Tax Liabilities, Foreign Subsidiaries Earnings	7.3
Income (Loss) from Continuing Operations before Income Taxes, Foreign	$ 147.4