Note 17 - Pension and Postretirement Benefits - Schedule of Funded Status and Amounts Recognized (Details) - USD ($) $ in Millions	May 29, 2022	May 30, 2021
Pension Plan [Member]
Funded Status	$ 162.1	$ 109.6
Other assets	277.0	245.0
Other accrued liabilities	(10.2)	(10.3)
Other noncurrent liabilities	(104.7)	(125.1)
Net Amount Recognized	162.1	109.6
Actuarial net loss (gain)	(30.2)	(41.5)
Net prior service cost (benefit)	8.0	6.2
Total	$ (22.2)	$ (35.3)
Discount rate	4.48%	3.04%
Other Postretirement Benefits Plan [Member]
Funded Status	$ (61.4)	$ (78.2)
Other assets	3.2	3.0
Other accrued liabilities	(8.1)	(9.0)
Other noncurrent liabilities	(56.5)	(72.2)
Net Amount Recognized	(61.4)	(78.2)
Actuarial net loss (gain)	(44.5)	(38.4)
Net prior service cost (benefit)	(11.0)	(12.9)
Total	$ (55.5)	$ (51.3)
Discount rate	4.24%	2.51%