Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	May. 31, 2015	May. 25, 2014	May. 26, 2013
Cash flows from operating activities:
Net income (loss)	$ (240.8)	$ 315.1	$ 786.1
Income from discontinued operations	366.6	141.4	87.7
Income (loss) from continuing operations	(607.4)	173.7	698.4
Adjustments to reconcile income (loss) from continuing operations to net cash flows from operating activities:
Depreciation and amortization	592.3	577.3	418.6
Asset impairment charges	1,615.3	720.0	20.2
Loss on sale of fixed assets	14.3	5.1	10.5
Earnings of affiliates less than (in excess of) distributions	(30.8)	13.6	(11.7)
Share-based payments expense	68.3	59.5	67.0
Contributions to pension plans	(13.5)	(18.3)	(19.8)
Pension expense	(6.0)	(5.9)	23.5
Other items	11.7	(36.3)	(9.2)
Change in operating assets and liabilities excluding effects of business acquisitions and dispositions:
Receivables	93.8	48.8	(52.2)
Inventories	(119.8)	12.5	56.1
Deferred income taxes and income taxes payable, net	(102.0)	50.5	126.4
Prepaid expenses and other current assets	(9.3)	1.5	(13.3)
Accounts payable	(15.9)	25.4	18.3
Accrued payroll	70.5	(126.0)	104.2
Other accrued liabilities	(87.8)	(46.8)	(66.7)
Net cash flows from operating activities - continuing operations	1,473.7	1,454.6	1,370.3
Net cash flows from operating activities - discontinued operations	6.9	114.0	41.9
Net cash flows from operating activities	1,480.6	1,568.6	1,412.2
Cash flows from investing activities:
Additions to property, plant and equipment	(471.9)	(592.3)	(422.6)
Sale of property, plant and equipment	20.6	42.5	18.0
Purchase of businesses, net of cash acquired	(95.7)	(39.9)	(5,018.8)
Purchase of intangible assets	0.0	0.0	(4.8)
Return of investment in equity method investee	391.4	0.0	0.0
Investment in equity method investee	0.0	0.0	(1.5)
Net cash flows from investing activities - continuing operations	(155.6)	(589.7)	(5,429.7)
Net cash flows from investing activities - discontinued operations	114.0	58.2	(36.1)
Net cash flows from investing activities	(41.6)	(531.5)	(5,465.8)
Cash flows from financing activities:
Net short-term borrowings	(150.0)	(43.2)	145.0
Issuance of long-term debt	550.0	0.0	6,217.7
Debt issuance costs	(2.3)	0.0	(56.6)
Repayment of long-term debt	(1,495.2)	(569.2)	(2,074.0)
Issuance of ConAgra Foods, Inc. common shares	0.0	0.0	269.2
Repurchase of ConAgra Foods, Inc. common shares	(50.0)	(100.0)	(245.0)
Cash dividends paid	(425.2)	(420.9)	(400.7)
Exercise of stock options and issuance of other stock awards	153.8	103.7	274.4
Other items	(11.3)	(4.5)	3.0
Net cash flows from financing activities - continuing operations	(1,430.2)	(1,034.1)	4,133.0
Net cash flows from financing activities - discontinued operations	0.0	0.0	0.0
Net cash flows from financing activities	(1,430.2)	(1,034.1)	4,133.0
Effect of exchange rate changes on cash and cash equivalents	(8.8)	(3.8)	1.5
Net change in cash and cash equivalents	0.0	(0.8)	80.9
Add: Cash balance included in assets held for sale at beginning of period	41.8	33.0	17.1
Less: Cash balance included in assets held for sale at end of period	0.0	41.8	33.0
Cash and cash equivalents at beginning of year	141.3	150.9	85.9
Cash and cash equivalents at end of year	$ 183.1	$ 141.3	$ 150.9