Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 23, 2025	Nov. 24, 2024	Nov. 23, 2025	Nov. 24, 2024
Statement of Comprehensive Income [Abstract]
Net earnings, including earnings attributable to noncontrolling interests	$ 414.3	$ 802.3	$ 1,618.3	$ 1,385.9
Other comprehensive income (loss), net of tax:
Foreign currency translation	12.4	28.8	(52.3)	(33.1)
Net actuarial loss	0.0	0.0	(7.5)	0.0
Other fair value changes:
Hedge derivatives	3.1	9.2	8.1	3.2
Reclassification to earnings:
Hedge derivatives	(4.7)	1.7	(3.9)	1.7
Amortization of losses and prior service costs	17.0	11.7	28.4	23.3
Other comprehensive income (loss), net of tax	27.8	51.4	(27.2)	(4.9)
Total comprehensive income	442.1	853.7	1,591.1	1,381.0
Comprehensive income attributable to noncontrolling interests	0.8	5.3	1.1	9.5
Comprehensive income attributable to General Mills	$ 441.3	$ 848.4	$ 1,590.0	$ 1,371.5