Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 27, 2012	May 29, 2011	May 30, 2010
Cash flows from operating activities:
Net income	$ 474.4	$ 819.4	$ 611.0
Income (loss) from discontinued operations	0.1	(11.5)	(19.3)
Income from continuing operations	474.3	830.9	630.3
Adjustments to reconcile income from continuing operations to net cash flows from operating activities:
Depreciation and amortization	371.8	360.9	324.1
Gain on sale of businesses			(14.3)
Gain on acquisition of controlling interest in Agro Tech Foods Ltd.	(58.7)
Asset impairment charges	8.6	19.8	64.4
Impairment charges related to Garner accident			31.5
Insurance recoveries recognized related to Garner accident		(109.4)	(58.1)
Receipts from insurance carriers related to Garner accident		64.5	50.2
Earnings of affiliates less than (in excess of) distributions	(17.6)	(13.1)	8.5
Share-based payments expense	41.8	44.8	55.8
Proceeds from settlement of interest rate swaps		31.5
Pension expense	421.8	54.0	227.4
Contributions to Company pension plans	(326.4)	(129.4)	(122.6)
Non-cash interest income on payment-in-kind notes			(67.9)
Receipt of interest on payment-in-kind notes earned in prior years		102.8	6.2
Gain on collection of payment-in-kind note		(25.0)
Other items (including noncurrent deferred income taxes)	(11.3)	212.9	(25.4)
Change in operating assets and liabilities excluding effects of business acquisitions and dispositions:
Accounts receivable	(4.3)	2.8	(90.1)
Inventories	14.9	(190.7)	199.6
Prepaid expenses and other current assets	7.5	31.6	(20.0)
Accounts payable	82.1	185.0	73.9
Accrued payroll	48.4	(139.2)	96.9
Other accrued liabilities	(3.2)	5.3	59.6
Net cash flows from operating activities - continuing operations	1,049.7	1,340.0	1,430.0
Net cash flows from operating activities - discontinued operations	2.3	12.3	42.7
Net cash flows from operating activities	1,052.0	1,352.3	1,472.7
Cash flows from investing activities:
Additions to property, plant and equipment	(336.7)	(466.2)	(482.3)
Purchase of businesses, net of cash acquired	(635.2)	(131.1)	(103.5)
Receipts from insurance carriers related to Garner accident		18.0	34.8
Purchase of secured loan	(39.6)
Sale of property, plant and equipment	9.7	18.9	88.4
Purchase of intangible assets	(62.5)	(18.0)	(3.0)
Proceeds from collection of payment-in-kind notes		412.5	91.9
Sale of businesses			21.7
Net cash flows from investing activities - continuing operations	(1,064.3)	(165.9)	(352.0)
Net cash flows from investing activities - discontinued operations		254.8	(3.3)
Net cash flows from investing activities	(1,064.3)	88.9	(355.3)
Cash flows from financing activities:
Net short-term borrowings	40.0
Repayment of long-term debt	(363.6)	(294.3)	(15.8)
Repurchase of ConAgra Foods common shares	(352.4)	(825.0)	(100.0)
Cash dividends paid	(388.6)	(374.5)	(346.7)
Exercise of stock options and issuance of other stock awards	213.2	59.7	54.7
Other items	1.8	2.1	3.9
Net cash flows from financing activities - continuing operations	(849.6)	(1,432.0)	(403.9)
Net cash flows from financing activities - discontinued operations		(0.1)	(0.6)
Net cash flows from financing activities	(849.6)	(1,432.1)	(404.5)
Effect of exchange rate changes on cash and cash equivalents	(7.5)	10.1	(2.9)
Net change in cash and cash equivalents	(869.4)	19.2	710.0
Cash and cash equivalents at beginning of Year	972.4	953.2	243.2
Cash and cash equivalents at end of Year	$ 103.0	$ 972.4	$ 953.2