CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions		3 Months Ended
		Aug. 28, 2016	Aug. 30, 2015
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [ABSTRACT]
Net earnings, including earnings attributable to redeemable and noncontrolling interests		$ 419.5	$ 435.1
Other Comprehensive Income (Loss), Net of Tax:
Foreign currency translation		80.4	(142.2)
Other fair value changes:
Securities		0.4	(0.1)
Hedge derivatives		15.2	10.3
Reclassification to earnings:
Hedge derivatives	[1]	(2.8)	0.7
Amortization of losses and prior service costs	[2]	30.6	30.9
Other comprehensive income (loss), net of tax		123.8	(100.4)
Total comprehensive income (loss)		543.3	334.7
Comprehensive income (loss) attributable to redeemable and noncontrolling interests		6.8	17.6
Total comprehensive income (loss) attributable to General Mills		$ 536.5	$ 317.1

[1] (Gain) loss reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and selling, general, and administrative (SG&A) expenses for foreign exchange contracts.

[2] Loss reclassified from AOCI into earnings is reported in SG&A expenses.