CONSOLIDATED STATEMENTS OF EARNINGS (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 24, 2019	Feb. 25, 2018	Feb. 24, 2019	Feb. 25, 2018
CONSOLIDATED STATEMENTS OF EARNINGS [ABSTRACT]
Net sales	$ 4,198.3	$ 3,882.3	$ 12,703.5	$ 11,850.2
Cost of sales	2,755.3	2,625.8	8,408.0	7,834.2
Selling, general, and administrative expenses	696.6	679.5	2,192.6	2,117.9
Divestiture loss	35.4	0.0	35.4	0.0
Restructuring, impairment, and other exit costs (recoveries)	59.7	7.5	267.7	14.3
Operating profit	651.3	569.5	1,799.8	1,883.8
Benefit plan non-service income	(21.4)	(23.2)	(63.3)	(64.5)
Interest, net	130.8	89.3	397.0	236.6
Earnings before income taxes and after-tax earnings from joint ventures	541.9	503.4	1,466.1	1,711.7
Income taxes	95.8	(432.5)	313.1	(29.1)
After-tax earnings from joint ventures	11.8	16.6	52.0	64.1
Net earnings, including earnings attributable to redeemable and noncontrolling interests	457.9	952.5	1,205.0	1,804.9
Net earnings attributable to redeemable and noncontrolling interests	11.1	11.1	22.5	28.3
Net earnings attributable to General Mills	$ 446.8	$ 941.4	$ 1,182.5	$ 1,776.6
Earnings per share - basic	$ 0.74	$ 1.64	$ 1.97	$ 3.1
Earnings per share - diluted	0.74	1.62	1.96	3.05
Dividends per share	$ 0.49	$ 0.49	$ 1.47	$ 1.47