Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Aug. 29, 2021	Aug. 30, 2020
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [ABSTRACT]
Net earnings, including earnings attributable to redeemable and noncontrolling interests	$ 638.2	$ 646.4
Other comprehensive income (loss), net of tax:
Foreign currency translation	(23.9)	66.2
Other fair value changes:
Hedge derivatives	1.7	(12.1)
Reclassification to earnings:
Hedge derivatives	10.6	(1.7)
Amortization of losses and prior service costs	8.4	19.5
Other comprehensive (loss) income, net of tax	(3.2)	71.9
Total comprehensive income	635.0	718.3
Comprehensive (loss) income attributable to redeemable and noncontrolling interests	(23.5)	73.7
Comprehensive income attributable to General Mills	$ 658.5	$ 644.6