Consolidated Statements of Earnings - USD ($) $ in Millions	12 Months Ended
	May 28, 2023	May 29, 2022	May 30, 2021
Consolidated Statements of Earnings [Abstract]
Net sales	$ 20,094.2	$ 18,992.8	$ 18,127.0
Cost of sales	13,548.4	12,590.6	11,678.7
Selling, general, and administrative expenses	3,500.4	3,147.0	3,079.6
Divestitures (gain) loss, net	(444.6)	(194.1)	53.5
Restructuring, impairment, and other exit costs (recoveries)	56.2	(26.5)	170.4
Operating profit	3,433.8	3,475.8	3,144.8
Benefit plan non-service income	(88.8)	(113.4)	(132.9)
Interest, net	382.1	379.6	420.3
Total earnings before income taxes and after-tax earnings from joint ventures	3,140.5	3,209.6	2,857.4
Income taxes	612.2	586.3	629.1
After-tax earnings from joint ventures	81.3	111.7	117.7
Net earnings, including earnings attributable to redeemable and noncontrolling interests	2,609.6	2,735.0	2,346.0
Net earnings attributable to redeemable and noncontrolling interests	15.7	27.7	6.2
Net earnings attributable to General Mills	$ 2,593.9	$ 2,707.3	$ 2,339.8
Earnings per share - basic	$ 4.36	$ 4.46	$ 3.81
Earnings per share - diluted	4.31	4.42	3.78
Dividends per share	$ 2.16	$ 2.04	$ 2.02