CONSOLIDATED STATEMENTS OF EARNINGS (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 25, 2018	Nov. 26, 2017	Nov. 25, 2018	Nov. 26, 2017
CONSOLIDATED STATEMENTS OF EARNINGS [ABSTRACT]
Net sales	$ 4,411.2	$ 4,198.7	$ 8,505.2	$ 7,967.9
Cost of sales	2,901.5	2,752.5	5,652.7	5,208.4
Selling, general, and administrative expenses	753.3	735.6	1,496.0	1,438.4
Restructuring, impairment, and other exit costs (recoveries)	209.4	1.6	208.0	6.8
Operating profit	547.0	709.0	1,148.5	1,314.3
Benefit plan non-service income	(21.0)	(20.8)	(41.9)	(41.3)
Interest, net	132.7	74.9	266.2	147.3
Earnings before income taxes and after-tax earnings from joint ventures	435.3	654.9	924.2	1,208.3
Income taxes	106.6	234.9	217.3	403.4
After-tax earnings from joint ventures	22.5	23.8	40.2	47.5
Net earnings, including earnings attributable to redeemable and noncontrolling interests	351.2	443.8	747.1	852.4
Net earnings attributable to redeemable and noncontrolling interests	7.8	13.3	11.4	17.2
Net earnings attributable to General Mills	$ 343.4	$ 430.5	$ 735.7	$ 835.2
Earnings per share - basic	$ 0.57	$ 0.75	$ 1.23	$ 1.46
Earnings per share - diluted	0.57	0.74	1.22	1.43
Dividends per share	$ 0.49	$ 0.49	$ 0.98	$ 0.98