Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 25, 2014	May 26, 2013	May 27, 2012
Cash flows from operating activities:
Net income	$ 315.1	$ 786.1	$ 474.4
Income (loss) from discontinued operations	4.1	(0.7)	6.5
Income from continuing operations	311.0	786.8	467.9
Adjustments to reconcile income from continuing operations to net cash flows from operating activities:
Depreciation and amortization	602.9	443.4	370.9
Asset impairment charges	720.0	20.2	8.6
(Gain) loss on sale of fixed assets	(85.2)	10.9	10.8
Gain on acquisition of controlling interest in Agro Tech Foods Ltd.	0	0	(58.7)
Earnings of affiliates less than (in excess of) distributions	13.3	(11.1)	(17.6)
Share-based payments expense	60.2	67.4	41.8
Contributions to pension plans	(18.3)	(19.8)	(326.4)
Pension expense	(5.9)	23.5	421.8
Other items	(6.3)	(8.6)	(5.6)
Change in operating assets and liabilities excluding effects of business acquisitions and dispositions:
Accounts receivable	63.3	(72.3)	(4.2)
Inventory	49.4	19.5	16.9
Deferred income taxes and income taxes payable, net	23.3	123.4	(6.7)
Prepaid expenses and other current assets	4.0	(22.0)	5.5
Accounts payable	(5.2)	6.5	82.3
Accrued payroll	(130.0)	109.9	48.4
Other accrued liabilities	(44.9)	(69.2)	(11.0)
Net cash flows from operating activities - continuing operations	1,551.6	1,408.5	1,044.7
Net cash flows from operating activities - discontinued operations	(0.4)	3.7	7.3
Net cash flows from operating activities	1,551.2	1,412.2	1,052.0
Cash flows from investing activities:
Additions to property, plant and equipment	(602.4)	(453.7)	(335.7)
Sale of property, plant and equipment	42.5	18.0	9.7
Purchase of businesses, net of cash acquired	(39.9)	(5,018.8)	(635.2)
Purchase of intangible assets	(1.0)	(4.8)	(62.5)
Purchase of secured loan	0	0	(39.6)
Investment in equity method investee	0	(1.5)	0
Net cash flows from investing activities - continuing operations	(600.8)	(5,460.8)	(1,063.3)
Net cash flows from investing activities - discontinued operations	86.7	(5.0)	(1.0)
Net cash flows from investing activities	(514.1)	(5,465.8)	(1,064.3)
Cash flows from financing activities:
Net short-term borrowings	(43.2)	145.0	40.0
Issuance of long-term debt	0	6,217.7	0
Debt issuance costs	0	(56.6)	0
Repayment of long-term debt	(569.2)	(2,074.0)	(363.6)
Issuance of ConAgra Foods, Inc. common shares	0	269.2	0
Repurchase of ConAgra Foods, Inc. common shares	(100.0)	(245.0)	(352.4)
Cash dividends paid	(420.9)	(400.7)	(388.6)
Exercise of stock options and issuance of other stock awards	103.7	274.4	213.2
Other items	(4.5)	3.0	1.8
Net cash flows from financing activities - continuing operations	(1,034.1)	4,133.0	(849.6)
Net cash flows from financing activities - discontinued operations	0	0	0
Net cash flows from financing activities	(1,034.1)	4,133.0	(849.6)
Effect of exchange rate changes on cash and cash equivalents	(3.8)	1.5	(7.5)
Net change in cash and cash equivalents	(0.8)	80.9	(869.4)
Cash and cash equivalents at beginning of year	183.9	103.0	972.4
Cash and cash equivalents at end of year	$ 183.1	$ 183.9	$ 103.0