Consolidated Statements of Earnings - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 23, 2025	Nov. 24, 2024	Nov. 23, 2025	Nov. 24, 2024
Income Statement [Abstract]
Net sales	$ 4,860.8	$ 5,240.1	$ 9,378.3	$ 10,088.2
Cost of sales	3,168.3	3,309.0	6,153.0	6,468.3
Selling, general, and administrative expenses	842.4	852.0	1,687.5	1,707.1
Divestitures gain	0.0	0.0	(1,054.4)	0.0
Restructuring, transformation, impairment, and other exit costs	122.1	1.2	138.4	3.4
Operating profit	728.0	1,077.9	2,453.8	1,909.4
Benefit plan non-service income	(15.7)	(13.8)	(30.8)	(27.7)
Interest, net	125.9	124.6	258.7	248.2
Earnings before income taxes and after-tax (loss) earnings from joint ventures	617.8	967.1	2,225.9	1,688.9
Income taxes	143.9	194.8	554.8	352.2
After-tax (loss) earnings from joint ventures	(59.6)	30.0	(52.8)	49.2
Net earnings, including earnings attributable to noncontrolling interests	414.3	802.3	1,618.3	1,385.9
Net earnings attributable to noncontrolling interests	1.3	6.6	1.1	10.3
Net earnings attributable to General Mills	$ 413.0	$ 795.7	$ 1,617.2	$ 1,375.6
Earnings per share – basic (usd per share)	$ 0.78	$ 1.43	$ 3.00	$ 2.46
Earnings per share – diluted (usd per share)	$ 0.78	$ 1.42	$ 3.00	$ 2.45