Consolidated Statements of Earnings (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 EARNINGS [ABSTRACT]
Net sales	$ 5,220.7	$ 5,024.0	$ 9,938.3	$ 9,563.9
Cost of sales	3,515.6	3,392.8	6,785.5	6,335.3
Selling, general, and administrative expenses	894.2	828.8	1,685.6	1,586.2
Divestitures gain, net	0.0	0.0	(430.9)	0.0
Restructuring, impairment, and other exit costs (recoveries)	11.1	2.3	12.7	(2.0)
Operating profit	799.8	800.1	1,885.4	1,644.4
Benefit plan non-service income	(21.7)	(27.7)	(43.4)	(57.3)
Interest, net	91.5	92.7	179.2	188.6
Earnings before income taxes and after-tax earnings from joint ventures	730.0	735.1	1,749.6	1,513.1
Income taxes	147.1	159.7	363.2	328.6
After-tax earnings from joint ventures	25.4	33.0	45.2	62.1
Net earnings, including earnings attributable to redeemable and noncontrolling interests	608.3	608.4	1,431.6	1,246.6
Net earnings attributable to redeemable and noncontrolling interests	2.4	11.2	5.7	22.4
Net earnings attributable to General Mills	$ 605.9	$ 597.2	$ 1,425.9	$ 1,224.2
Earnings per share - basic	$ 1.01	$ 0.98	$ 2.38	$ 2.01
Earnings per share - diluted	$ 1.01	$ 0.97	$ 2.36	$ 1.99