CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 27, 2016	Nov. 29, 2015	Nov. 27, 2016	Nov. 29, 2015
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [ABSTRACT]
Net earnings, including earnings attributable to redeemable and noncontrolling interests	$ 495.8	$ 543.6	$ 915.3	$ 978.7
Other Comprehensive Income (Loss), Net of Tax:
Foreign currency translation	(105.7)	(70.3)	(25.3)	(212.5)
Other fair value changes:
Securities	(0.1)	0.1	0.3	0.0
Hedge derivatives	32.1	0.1	47.3	10.4
Reclassification to earnings:
Hedge derivatives	(7.8)	(0.3)	(10.6)	0.4
Amortization of losses and prior service costs	31.8	35.9	62.4	66.8
Other comprehensive income (loss), net of tax	(49.7)	(34.5)	74.1	(134.9)
Total comprehensive income (loss)	446.1	509.1	989.4	843.8
Comprehensive income (loss) attributable to redeemable and noncontrolling interests	(43.5)	(33.6)	(36.7)	(16.0)
Total comprehensive income (loss) attributable to General Mills	$ 489.6	$ 542.7	$ 1,026.1	$ 859.8