Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 27, 2022	Nov. 28, 2021	Nov. 27, 2022	Nov. 28, 2021
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [ABSTRACT]
Net earnings, including earnings attributable to redeemable and noncontrolling interests	$ 608.3	$ 608.4	$ 1,431.6	$ 1,246.6
Other comprehensive loss, net of tax:
Foreign currency translation	(115.0)	(38.5)	(111.2)	(62.4)
Other fair value changes:
Hedge derivatives	20.8	18.7	(17.5)	20.4
Reclassification to earnings:
Foreign currency translation	0.0	0.0	(7.4)	0.0
Hedge derivatives	1.0	(6.4)	(0.4)	4.2
Amortization of losses and prior service costs	14.2	22.8	28.3	31.2
Other comprehensive loss, net of tax	(79.0)	(3.4)	(108.2)	(6.6)
Total comprehensive income	529.3	605.0	1,323.4	1,240.0
Comprehensive income (loss) attributable to redeemable and noncontrolling interests	3.0	(25.8)	5.0	(49.3)
Comprehensive income attributable to General Mills	$ 526.3	$ 630.8	$ 1,318.4	$ 1,289.3