Consolidated Statements of Earnings - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 26, 2023	Nov. 27, 2022	Nov. 26, 2023	Nov. 27, 2022
Consolidated Statements of Earnings [Abstract]
Net sales	$ 5,139.4	$ 5,220.7	$ 10,044.1	$ 9,938.3
Cost of sales	3,373.5	3,515.6	6,507.7	6,785.5
Selling, general, and administrative expenses	830.5	894.2	1,669.8	1,685.6
Divestitures gain, net	0.0	0.0	0.0	(430.9)
Restructuring, impairment, and other exit costs	123.6	11.1	124.8	12.7
Operating profit	811.8	799.8	1,741.8	1,885.4
Benefit plan non-service income	(20.1)	(21.7)	(37.1)	(43.4)
Interest, net	117.8	91.5	234.8	179.2
Total earnings before income taxes and after-tax earnings from joint ventures	714.1	730.0	1,544.1	1,749.6
Income taxes	136.0	147.1	309.2	363.2
After-tax earnings from joint ventures	24.2	25.4	47.7	45.2
Net earnings, including earnings attributable to noncontrolling interests	602.3	608.3	1,282.6	1,431.6
Net earnings attributable to noncontrolling interests	6.8	2.4	13.6	5.7
Net earnings attributable to General Mills	$ 595.5	$ 605.9	$ 1,269.0	$ 1,425.9
Earnings per share - basic	$ 1.03	$ 1.01	$ 2.18	$ 2.38
Earnings per share - diluted	$ 1.02	$ 1.01	$ 2.16	$ 2.36