CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 26, 2013	May 27, 2012	May 29, 2011
Statement of Other Comprehensive Income [Abstract]
Net earnings, including earnings attributable to redeemable and noncontrolling interests	$ 1,892.5	$ 1,589.1	$ 1,803.5
Other comprehensive income (loss), net of tax:
Foreign currency translation	0.8	(420.1)	359.0
Net actuarial gain (loss)	45.0	(504.6)	61.1
Other fair value changes:
Securities	0.8	(0.2)	(3.6)
Hedge derivatives	24.6	(53.4)	(25.4)
Reclassification to earnings:
Hedge derivatives	12.2	11.5	18.5
Amortization of losses and prior service costs	98.8	81.7	67.2
Other comprehensive income (loss), net of tax	182.2	(885.1)	476.8
Total comprehensive income	2,074.7	704.0	2,280.3
Comprehensive income (loss) attributable to redeemable and noncontrolling interests	61.1	(130.4)	5.9
Comprehensive income attributable to General Mills	$ 2,013.6	$ 834.4	$ 2,274.4