Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Aug. 25, 2024	Aug. 27, 2023
Consolidated Statements of Comprehensive Income [Abstract]
Net earnings, including earnings attributable to noncontrolling interests	$ 583.6	$ 680.3
Other comprehensive (loss) income, net of tax:
Foreign currency translation	(61.9)	(18.1)
Other fair value changes:
Hedge derivatives	(6.0)	(2.3)
Reclassification to earnings:
Hedge derivatives	0.0	0.2
Amortization of losses and prior service costs	11.6	9.1
Other comprehensive loss, net of tax	(56.3)	(11.1)
Total comprehensive income	527.3	669.2
Comprehensive income attributable to noncontrolling interests	4.2	6.9
Comprehensive income attributable to General Mills	$ 523.1	$ 662.3