Note 13 - Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Nov. 27, 2022	May 29, 2022
Derivative assets	$ 11.6	$ 7.0
Deferred compensation assets	7.1	7.5
Available-for-sale debt securities	7.9	7.6
Total assets	26.6	22.1
Derivative liabilities	1.5	2.2
Deferred compensation liabilities	72.5	72.6
Total liabilities	74.0	74.8
Available-for-sale debt securities	7.9	7.6
Fair Value, Inputs, Level 1 [Member]
Derivative assets	6.2	5.7
Deferred compensation assets	7.1	7.5
Available-for-sale debt securities	0.0	0.0
Total assets	13.3	13.2
Derivative liabilities	0.0	0.0
Deferred compensation liabilities	72.5	72.6
Total liabilities	72.5	72.6
Available-for-sale debt securities	0.0	0.0
Fair Value, Inputs, Level 2 [Member]
Derivative assets	5.4	1.3
Deferred compensation assets	0.0	0.0
Available-for-sale debt securities	0.0	0.0
Total assets	5.4	1.3
Derivative liabilities	1.5	2.2
Deferred compensation liabilities	0.0	0.0
Total liabilities	1.5	2.2
Available-for-sale debt securities	0.0	0.0
Fair Value, Inputs, Level 3 [Member]
Derivative assets	0.0	0.0
Deferred compensation assets	0.0	0.0
Available-for-sale debt securities	7.9	7.6
Total assets	7.9	7.6
Derivative liabilities	0.0	0.0
Deferred compensation liabilities	0.0	0.0
Total liabilities	0.0	0.0
Available-for-sale debt securities	$ 7.9	$ 7.6