CONSOLIDATED STATEMENTS OF EARNINGS (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 26, 2017	Feb. 28, 2016	Feb. 26, 2017	Feb. 28, 2016
CONSOLIDATED STATEMENTS OF EARNINGS [ABSTRACT]
Net sales	$ 3,793.2	$ 4,002.4	$ 11,813.2	$ 12,635.2
Cost of sales	2,485.5	2,644.9	7,569.1	8,182.5
Selling, general, and administrative expenses	687.6	755.8	2,107.9	2,339.7
Divestitures loss (gain)	0.0	(1.5)	13.5	(200.6)
Restructuring, impairment, and other exit costs	77.6	16.9	165.5	138.3
Operating profit	542.5	586.3	1,957.2	2,175.3
Interest, net	76.4	77.2	225.8	226.3
Earnings before income taxes and after-tax earnings from joint ventures	466.1	509.1	1,731.4	1,949.0
Income taxes	107.0	157.6	511.0	667.7
After-tax earnings from joint ventures	11.1	16.2	65.1	65.1
Net earnings, including earnings attributable to redeemable and noncontrolling interests	370.2	367.7	1,285.5	1,346.4
Net earnings (loss) attributable to redeemable and noncontrolling interests	12.4	6.0	36.9	28.6
Net earnings attributable to General Mills	$ 357.8	$ 361.7	$ 1,248.6	$ 1,317.8
Earnings per share - basic	$ 0.62	$ 0.61	$ 2.12	$ 2.2
Earnings per share - diluted	0.61	0.59	2.08	2.15
Dividends per share	$ 0.48	$ 0.44	$ 1.44	$ 1.32