Consolidated Statements of Earnings - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 25, 2024	Feb. 26, 2023	Feb. 25, 2024	Feb. 26, 2023
Consolidated Statements of Earnings [Abstract]
Net sales	$ 5,099.2	$ 5,125.9	$ 15,143.3	$ 15,064.2
Cost of sales	3,391.8	3,461.1	9,899.5	10,246.6
Selling, general, and administrative expenses	790.9	946.9	2,460.7	2,632.5
Divestitures gain, net	0.0	(13.7)	0.0	(444.6)
Restructuring, impairment, and other exit costs	5.8	1.4	130.6	14.1
Operating profit	910.7	730.2	2,652.5	2,615.6
Benefit plan non-service income	(18.6)	(21.6)	(55.7)	(65.0)
Interest, net	121.7	98.3	356.5	277.5
Earnings before income taxes and after-tax earnings from joint ventures	807.6	653.5	2,351.7	2,403.1
Income taxes	149.3	108.3	458.5	471.5
After-tax earnings from joint ventures	18.0	12.7	65.7	57.9
Net earnings, including earnings attributable to noncontrolling interests	676.3	557.9	1,958.9	1,989.5
Net earnings attributable to noncontrolling interests	6.2	4.8	19.8	10.5
Net earnings attributable to General Mills	$ 670.1	$ 553.1	$ 1,939.1	$ 1,979.0
Earnings per share - basic	$ 1.18	$ 0.94	$ 3.35	$ 3.32
Earnings per share - diluted	$ 1.17	$ 0.92	$ 3.33	$ 3.28