Consolidated Statements of Earnings (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 28, 2021	Nov. 29, 2020	Nov. 28, 2021	Nov. 29, 2020
CONSOLIDATED STATEMENTS OF EARNINGS [ABSTRACT]
Net sales	$ 5,024.0	$ 4,719.4	$ 9,563.9	$ 9,083.4
Cost of sales	3,392.8	2,998.3	6,335.3	5,771.9
Selling, general, and administrative expenses	828.8	804.1	1,586.2	1,540.3
Restructuring, impairment, and other exit costs (recoveries)	2.3	0.4	(2.0)	0.9
Operating profit	800.1	916.6	1,644.4	1,770.3
Benefit plan non-service income	(27.7)	(32.9)	(57.3)	(66.2)
Interest, net	92.7	100.6	188.6	211.7
Earnings before income taxes and after-tax earnings from joint ventures	735.1	848.9	1,513.1	1,624.8
Income taxes	159.7	189.4	328.6	360.2
After-tax earnings from joint ventures	33.0	36.4	62.1	77.7
Net earnings, including earnings attributable to redeemable and noncontrolling interests	608.4	695.9	1,246.6	1,342.3
Net earnings attributable to redeemable and noncontrolling interests	11.2	7.5	22.4	15.0
Net earnings attributable to General Mills	$ 597.2	$ 688.4	$ 1,224.2	$ 1,327.3
Earnings per share - basic	$ 0.98	$ 1.12	$ 2.01	$ 2.16
Earnings per share - diluted	$ 0.97	$ 1.11	$ 1.99	$ 2.14