Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 29, 2020	Nov. 24, 2019	Nov. 29, 2020	Nov. 24, 2019
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [ABSTRACT]
Net earnings, including earnings attributable to redeemable and noncontrolling interests	$ 695.9	$ 591.4	$ 1,342.3	$ 1,119.9
Other comprehensive income (loss), net of tax:
Foreign currency translation	23.7	(2.8)	89.9	(6.5)
Other fair value changes:
Hedge derivatives	1.9	(12.8)	(10.2)	(9.0)
Reclassification to earnings:
Hedge derivatives	1.0	0.2	(0.7)	(0.4)
Amortization of losses and prior service costs	19.8	19.6	39.3	39.2
Other comprehensive income (loss), net of tax	46.4	4.2	118.3	23.3
Total comprehensive income	742.3	595.6	1,460.6	1,143.2
Comprehensive income (loss) attributable to redeemable and noncontrolling interests	12.8	4.0	86.5	6.2
Comprehensive income attributable to General Mills	$ 729.5	$ 591.6	$ 1,374.1	$ 1,137.0