Conagra Brands (CAG) 10-Q 31 Dec 13 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Nov. 24, 2013
Document and Entity Information [Abstract]	'
Entity Registrant Name	'CONAGRA FOODS INC /DE/
Entity Central Index Key	'0000023217
Current Fiscal Year End Date	'--05-25
Entity Filer Category	'Large Accelerated Filer
Document Type	'10-Q
Document Period End Date	24-Nov-13
Document Fiscal Year Focus	'2014
Document Fiscal Period Focus	'Q2
Trading Symbol	'CAG
Amendment Flag	'false
Entity Common Stock, Shares Outstanding	420,406,577

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Earnings (USD $)	3 Months Ended		6 Months Ended
In Millions, except Per Share data, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Net sales	$4,713.90	$3,727.20	$8,911.40	$7,029.50
Costs and expenses:	'	'	'	'
Cost of goods sold	3,699.20	2,865.60	7,065.80	5,299.30
Selling, general and administrative expenses	572.7	493.8	1,132.10	944.3
Interest expense, net	95.4	53.4	191	102.7
Income from continuing operations before income taxes and equity method investment earnings	346.6	314.4	522.5	683.2
Income tax expense	117.9	109.7	151.8	233.5
Equity method investment earnings	5.3	12.8	9.4	20.4
Income from continuing operations	234	217.5	380.1	470.1
Income (loss) from discontinued operations, net of tax	18.4	-1	19.5	-1.4
Net income	252.4	216.5	399.6	468.7
Less: Net income attributable to noncontrolling interests	3.7	4.9	6.6	7
Net income attributable to ConAgra Foods, Inc.	$248.70	$211.60	$393	$461.70
Earnings per share - basic	'	'	'	'
Income from continuing operations attributable to ConAgra Foods, Inc. common stockholders	$0.55	$0.52	$0.89	$1.14
Income (loss) from discontinued operations attributable to ConAgra Foods, Inc. common stockholders	$0.04	$0	$0.04	($0.01)
Net income attributable to ConAgra Foods, Inc. common stockholders	$0.59	$0.52	$0.93	$1.13
Earnings per share - diluted	'	'	'	'
Income from continuing operations attributable to ConAgra Foods, Inc. common stockholders	$0.54	$0.52	$0.87	$1.12
Income (loss) from discontinued operations attributable to ConAgra Foods, Inc. common stockholders	$0.04	($0.01)	$0.05	$0
Net income attributable to ConAgra Foods, Inc. common stockholders	$0.58	$0.51	$0.92	$1.12
Cash dividends declared per common share	$0.25	$0.25	$0.50	$0.49

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Net income	$252.40	$216.50	$399.60	$468.70
Other comprehensive income (loss):	'	'	'	'
Net derivative adjustment, net of tax	-6.2	-0.3	39.4	-3
Unrealized gains on available-for-sale securities, net of tax	0.3	0	0.4	0
Unrealized currency translation gains (losses)	10	3.8	-21	18.6
Pension and postretirement healthcare liabilities, net of tax	1.4	0.2	1.2	1.1
Comprehensive income	257.9	220.2	419.6	485.4
Comprehensive income (loss) attributable to noncontrolling interests	5.8	4.8	-3.3	6.9
Comprehensive income attributable to ConAgra Foods, Inc.	$252.10	$215.40	$422.90	$478.50

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Nov. 24, 2013	26-May-13
In Millions, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$192.70	$183.90
Receivables, less allowance for doubtful accounts of $7.2 and $7.6	1,415.10	1,286.20
Inventories	2,776.10	2,390.30
Prepaid expenses and other current assets	371.7	515.6
Current assets held for sale	0	3.8
Total current assets	4,755.60	4,379.80
Property, plant and equipment	7,502.70	7,209.30
Less accumulated depreciation	-3,570.40	-3,358.90
Property, plant and equipment, net	3,932.30	3,850.40
Goodwill	8,455.90	8,444.10
Brands, trademarks and other intangibles, net	3,355.90	3,418.10
Other assets	286.7	293.5
Noncurrent assets held for sale	0	19.4
Total assets	20,786.40	20,405.30
Current liabilities	'	'
Notes payable	233.7	185
Current installments of long-term debt	584.9	517.9
Accounts payable	1,783.70	1,501.60
Accrued payroll	179.2	287.2
Other accrued liabilities	948	909.6
Total current liabilities	3,729.50	3,401.30
Senior long-term debt, excluding current installments	8,575.20	8,691
Subordinated debt	195.9	195.9
Other noncurrent liabilities	2,724.10	2,754.10
Total liabilities	15,224.70	15,042.30
Commitments and contingencies (Note 13)	'	'
Common stock of $5 par value, authorized 1,200,000,000 shares; issued 567,907,172	2,839.70	2,839.70
Additional paid-in capital	1,017.50	1,006.20
Retained earnings	5,311.40	5,129.50
Accumulated other comprehensive loss	-166.2	-196.1
Less treasury stock, at cost, 147,500,595 and 148,442,086 common shares	-3,530.20	-3,514.90
Total ConAgra Foods, Inc. common stockholders' equity	5,472.20	5,264.40
Noncontrolling interests	89.5	98.6
Total stockholders' equity	5,561.70	5,363
Total liabilities and stockholders' equity	$20,786.40	$20,405.30

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Nov. 24, 2013	26-May-13
In Millions, except Share data, unless otherwise specified
Allowance for doubtful accounts	$7.20	$7.60
Common stock, par value	$5	$5
Common stock, authorized	1,200,000,000	1,200,000,000
Common stock, issued	567,907,172	567,907,172
Treasury stock, common shares	147,500,595	148,442,086

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012
Cash flows from operating activities:	'	'
Net income	$399.60	$468.70
Income (loss) from discontinued operations	19.5	-1.4
Income from continuing operations	380.1	470.1
Adjustments to reconcile income from continuing operations to net cash flows from operating activities:	'	'
Depreciation and amortization	292.4	185.3
Asset impairment charges	14.8	4.6
Earnings of affiliates less than (in excess of) distributions	1.3	-5.4
Share-based payments expense	32.1	27.8
Contributions to pension plans	-10.1	-10.1
Pension expense	-4.5	11.4
Other items	-4.9	-11.1
Change in operating assets and liabilities excluding effects of business acquisitions and dispositions:	'	'
Accounts receivable	-133.8	-109.9
Inventory	-385.7	-333.7
Deferred income taxes and income taxes payable, net	106.6	-2.8
Prepaid expenses and other current assets	65.3	19.7
Accounts payable	270	226.1
Accrued payroll	-107.9	-13.3
Other accrued liabilities	40.1	21.8
Net cash flows from operating activities b continuing operations	555.8	480.5
Net cash flows from operating activities b discontinued operations	-0.1	-1.9
Net cash flows from operating activities	555.7	478.6
Cash flows from investing activities:	'	'
Additions to property, plant and equipment	-332.2	-179.1
Sale of property, plant and equipment	12.1	3.9
Purchase of businesses, net of cash acquired	-39.6	-268.6
Investment in equity method investee	0	-1.5
Net cash flows from investing activities b continuing operations	-359.7	-445.3
Net cash flows from investing activities b discontinued operations	54.7	-1.3
Net cash flows from investing activities	-305	-446.6
Cash flows from financing activities:	'	'
Net short-term borrowings	48.7	-40
Issuance of long-term debt	0	743
Repayment of long-term debt	-50.7	-34.2
Repurchase of ConAgra Foods, Inc. common shares	-100	-238.6
Cash dividends paid	-210.4	-195.3
Exercise of stock options and issuance of other stock awards	70.3	102.9
Other items	0.8	1.5
Net cash flows from financing activities	-241.3	339.3
Effect of exchange rate changes on cash and cash equivalents	-0.6	2.5
Net change in cash and cash equivalents	8.8	373.8
Cash and cash equivalents at beginning of period	183.9	103
Cash and cash equivalents at end of period	$192.70	$476.80

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
	Nov. 24, 2013
Accounting Policies [Abstract]	'
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	The unaudited financial information reflects all adjustments, which are, in the opinion of management, necessary for a fair presentation of the results of operations, financial position, and cash flows for the periods presented. The adjustments are of a normal recurring nature, except as otherwise noted. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in the ConAgra Foods, Inc. (the "Company," "we," "us," or "our") annual report on Form 10-K for the fiscal year ended May 26, 2013.
	The results of operations for any quarter or a partial fiscal year period are not necessarily indicative of the results to be expected for other periods or the full fiscal year.
	Basis of Consolidation — The condensed consolidated financial statements include the accounts of ConAgra Foods, Inc. and all majority-owned subsidiaries. In addition, the accounts of all variable interest entities for which we have been determined to be the primary beneficiary are included in our condensed consolidated financial statements from the date such determination is made. All significant intercompany investments, accounts, and transactions have been eliminated.
	Comprehensive Income — Comprehensive income includes net income, currency translation adjustments, certain derivative-related activity, changes in the value of available-for-sale investments, and changes in prior service cost and net actuarial gains (losses) from pension (for amounts not in excess of the 10% corridor) and postretirement health care plans. We generally deem our foreign investments to be essentially permanent in nature and we do not provide for taxes on currency translation adjustments arising from converting the investment denominated in a foreign currency to U.S. dollars. When we determine that a foreign investment, as well as undistributed earnings, are no longer permanent in nature, estimated taxes are provided for the related deferred tax liability (asset), if any, resulting from currency translation adjustments.
	The following details the income tax expense (benefit) on components of other comprehensive income (loss):
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,		November 25,
		2013			2012			2013		2012
	Net derivative adjustment	$	(3.6	)	$	(0.1	)	$	23.3	$	(1.7	)
	Unrealized gains on available-for-sale securities	0.1			—			0.2		—
	Pension and postretirement healthcare liabilities	0.7			0.1			0.7		0.6
		$	(2.8	)	$	—		$	24.2	$	(1.1	)
	The following table summarizes the reclassifications from accumulated other comprehensive loss into income for the thirteen weeks and twenty-six weeks ended November 24, 2013:
		Amount reclassified from Accumulated Other Comprehensive Loss						Affected Line Item in the Condensed Consolidated Statement of Earnings
		Thirteen weeks ended			Twenty-six weeks ended
	Net derivative adjustment
	Fair value hedges	$	0.1		$	0.2		Interest expense, net
	Cash flow hedges	(0.1		)	(0.1		)	Interest expense, net
		—			0.1			Total before tax
		—			—			Income tax benefit
		$	—		$	0.1		Net of tax
	Amortization of pension and other postretirement benefits:
	Net prior service cost	$	(0.9	)	$	(1.7	)	Selling, general and administrative expenses
	Net actuarial losses	1.7			3.3			Selling, general and administrative expenses
		0.8			1.6			Total before tax
		(0.3		)	(0.6		)	Income tax benefit
		$	0.5		$	1		Net of tax
	Reclassifications — Certain prior year amounts have been reclassified to conform with current year presentation.
	Use of Estimates — Preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions. These estimates and assumptions affect reported amounts of assets, liabilities, revenues, and expenses as reflected in the condensed consolidated financial statements. Actual results could differ from these estimates.
	Recently Issued Accounting Standards — In July 2013, the FASB issued Accounting Standards Update ("ASU") 2013-11, "Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists", which states that entities should present the unrecognized tax benefit as a reduction of the deferred tax asset for a net operating loss ("NOL") or similar tax loss or tax credit carryforward rather than as a liability when the uncertain tax position would reduce the NOL or other carryforward under the tax law. No new disclosures are necessary. This ASU will be effective for the first interim reporting period in fiscal 2015.

ACQUISITIONS

ACQUISITIONS	6 Months Ended
	Nov. 24, 2013
Business Combinations [Abstract]	'
ACQUISITIONS	'
	ACQUISITIONS
	In September 2013, we acquired frozen dessert production assets from Harlan Bakeries for $39.6 million in cash. The purchase included machinery, operating systems, warehousing/storage, and other assets associated with making frozen fruit pies, cream pies, pastry shells, and loaf cakes. This business is included in the Consumer Foods segment.
	In January 2013, we acquired Ralcorp Holdings, Inc. ("Ralcorp"). The total amount of consideration paid in connection with the acquisition was approximately $4.75 billion, net of cash acquired, plus assumed liabilities. We funded the merger consideration with existing cash on hand, borrowings under a new $1.5 billion senior unsecured Term Loan Facility (the "Term Loan Facility"), and net proceeds from the issuance of new senior notes and common stock. The results from our Ralcorp acquisition are reflected within our Consumer Foods, Commercial Foods, and Private Brands segments.
	The following table summarizes the preliminary estimated fair values of the Ralcorp assets acquired and liabilities assumed at the acquisition date. The fair values of the assets and liabilities related to Ralcorp are subject to refinement as we complete our analyses relative to the fair values at the date of acquisition. Changes that have occurred since initial allocation have not been retrospectively applied, as the impact on reported results would not have been material.
		January 29,
		2013
	Assets acquired:
	Cash and cash equivalents	$	320.7
	Other current assets	914.7
	Property, plant and equipment	982
	Goodwill	4,374.80
	Brands, trademarks and other intangibles	2,167.30
	Other assets	27.7
	Total assets acquired	$	8,787.20
	Liabilities assumed:
	Current liabilities	$	619.7
	Noncurrent liabilities	3,096.60
	Total liabilities assumed	$	3,716.30
	Net assets acquired	$	5,070.90
	As a result of the Ralcorp acquisition, we recognized a total of $4.37 billion of goodwill and $2.17 billion of brands, trademarks and other intangibles. Amortizable brands, trademarks and other intangibles totaled $2.03 billion. Indefinite lived brands, trademarks and other intangibles totaled $134.1 million. Of the total goodwill, $397.0 million is deductible for tax purposes. We completed our allocation of goodwill to the new operating segments in the second quarter of fiscal 2014. The allocation of goodwill to Private Brands, Consumer Foods, and Commercial Foods was $3.53 billion, $512.0 million, and $334.6 million, respectively.
	In August 2012, we acquired the P.F. Chang's® and Bertolli® brands frozen meal business from Unilever for $266.9 million in cash. Products will continue to be produced by Unilever under transactions services and contract manufacturing agreements until the end of calendar year 2013. Approximately $100.1 million of the purchase price was allocated to goodwill and $91.8 million was allocated to brands, trademarks and other intangibles. The amount allocated to goodwill is deductible for tax purposes. This business is included in the Consumer Foods segment.
	For each of these acquisitions, the amounts allocated to goodwill were primarily attributable to anticipated synergies, product portfolios, and other intangibles that do not qualify for separate recognition.
	Under the acquisition method of accounting, the assets acquired and liabilities assumed in these acquisitions were recorded at their respective estimated fair values at the date of acquisition.
	The following unaudited pro forma financial information presents the combined results of operations as if the acquisitions of Ralcorp and the P.F. Chang's and Bertolli brands' frozen meal business (collectively, the "acquirees") had occurred at the beginning of the fiscal year acquired and the preceding year. The acquirees' pre-acquisition results have been added to ConAgra Foods' historical results. The pro forma results contained in the table below include adjustments for amortization of acquired intangibles and depreciation expense, as well as related income taxes.
	These pro forma results may not necessarily reflect the actual results of operations that would have been achieved, nor are they necessarily indicative of future results of operations.
		Thirteen weeks ended		Twenty-six weeks ended
		November 25,		November 25,
		2012		2012
	Pro forma net sales	$	4,834.60	$	9,225.70
	Pro forma net income from continuing operations	$	186.9	$	469.6
	Pro forma net income from continuing operations per share—basic	$	0.46	$	1.16
	Pro forma net income from continuing operations per share—diluted	$	0.45	$	1.14

DISCONTINUED_OPERATIONS_DISCON

DISCONTINUED OPERATIONS DISCONTINUED OPERATIONS	6 Months Ended
	Nov. 24, 2013
Discontinued Operations and Disposal Groups [Abstract]	'
DISCONTINUED OPERATIONS	'
	DISCONTINUED OPERATIONS
	Lightlife® Operations
	In the second quarter of fiscal 2014, we completed the sale of the assets of the Lightlife® business for $54.7 million in cash. This business produced and sold vegetarian-based burgers, hot dogs, and other meatless frozen and refrigerated items. The results of this business were previously reflected in the Consumer Foods segment. We reflected the results of these operations as discontinued operations for all periods presented. We recognized a pre-tax gain of $32.1 million ($19.8 million after-tax) on the sale of this business, which is classified as discontinued operations in the second quarter of fiscal 2014. The assets of the discontinued Lightlife business have been reclassified as assets held for sale within our condensed consolidated balance sheets for all periods presented prior to divestiture.
	The summary comparative financial results of discontinued operations were as follows:
		Thirteen weeks ended						Twenty-six weeks ended
		November 24, 2013			25-Nov-12			24-Nov-13		25-Nov-12
	Net sales	$	2		$	8.2		$	11.2	$	17.8
	Income (loss) from operations of discontinued operations before income taxes	32.7			(1.6		)	34.4		(2.3		)
	Income tax expense (benefit)	14.3			(0.6		)	14.9		(0.9		)
	Income (loss) from discontinued operations, net of tax	$	18.4		$	(1.0	)	$	19.5	$	(1.4	)
	The assets classified as held for sale reflected in our condensed consolidated balance sheets were as follows:
			May 26, 2013
	Inventories		$	3.8
	Current assets held for sale		$	3.8
	Property, plant and equipment, net		$	8.8
	Goodwill		6.6
	Brands, trademarks and other intangibles, net		4
	Noncurrent assets held for sale		$	19.4

RESTRUCTURING

RESTRUCTURING	6 Months Ended
	Nov. 24, 2013
Restructuring and Related Activities [Abstract]	'
RESTRUCTURING	'
	RESTRUCTURING ACTIVITIES
	Supply Chain and Administrative Efficiency Plan
	We are continuing to evaluate a plan for the integration of Ralcorp and related restructuring activities and on December 18, 2013, our Board of Directors approved an expansion of the scope of the plan we previously referred to as the Ralcorp Related Restructuring Plan to include steps to optimize the entire organization’s supply chain network and improve selling, general and administrative effectiveness and efficiencies, which we now refer to as the Supply Chain and Administrative Efficiency Plan (the “SCAE Plan”), including an initial phase of the SCAE Plan (the “Initial Phase”) and related expenses for the Initial Phase. Although we remain unable to make good faith estimates relating to the entire SCAE Plan, we are reporting on actions included in the Initial Phase. This reporting addresses the estimated amounts or range of amounts for each major type of costs expected to be incurred, and the charges that have or will result in cash outflows. As a part of the Initial Phase, we expect to take actions to, among other things, continue the ongoing integration and restructuring of the operations of Ralcorp, optimize manufacturing assets in the newly created Private Brands segment, and optimize the Company’s dry distribution and mixing centers. In connection with the Initial Phase, we expect to incur approximately $200.0 million of charges, which includes $155.0 million of cash charges and $45.0 million of non-cash charges.
	We anticipate that we will recognize the following pre-tax expenses associated with the Initial Phase of the SCAE Plan (amounts include charges recognized in fiscal year 2013 and the first two quarters of fiscal year 2014):
		Consumer Foods			Corporate		Private Brands			Total
	Multi-employer pension costs	$	—		$	11.2	$	—		$	11.2
	Other cost of goods sold	3.1			—		4.9			8
	Total cost of goods sold	$	3.1		$	11.2	$	4.9		$	19.2
	Severance and related costs	$	3.5		$	30.5	$	13.8		$	47.8
	Property relocation	15.8			—		29.3			45.1
	Fixed asset impairment / Loss on disposal	—			—		39.3			39.3
	Gain on sale of asset	—			—		(0.9		)	(0.9		)
	Other selling, general and administrative expenses	11.1			2.1		36.3			49.5
	Total selling, general and administrative expenses	$	30.4		$	32.6	$	117.8		$	180.8
	Consolidated total	$	33.5		$	43.8	$	122.7		$	200
	During the second quarter of fiscal 2014, we recognized the following pre-tax expenses for the SCAE Plan:
		Consumer Foods			Corporate		Private Brands			Total
	Cost of goods sold	$	(0.1	)	$	—	$	—		$	(0.1	)
	Severance and related costs	$	0.6		$	6.3	$	—		$	6.9
	Consulting	—			0.3		0.2			0.5
	Total selling, general and administrative expenses	$	0.6		$	6.6	$	0.2		$	7.4
	Consolidated total	$	0.5		$	6.6	$	0.2		$	7.3
	During the first half of fiscal 2014, we recognized the following pre-tax expenses for the SCAE Plan:
		Consumer Foods			Corporate		Private Brands			Total
	Cost of goods sold	$	0.2		$	—	$	—		$	0.2
	Severance and related costs	$	0.6		$	13.3	$	—		$	13.9
	Consulting	—			0.3		0.2			0.5
	Total selling, general and administrative expenses	$	0.6		$	13.6	$	0.2		$	14.4
	Consolidated total	$	0.8		$	13.6	$	0.2		$	14.6
	All of these charges have resulted or will result in cash outflows.
	We recognized the following cumulative (plan inception to November 24, 2013) pre-tax expenses related to the SCAE Plan in our condensed consolidated statement of earnings:
		Consumer Foods			Corporate		Private Brands			Total
	Multi-employer pension costs	$	—		$	11.2	$	—		$	11.2
	Other cost of goods sold	0.2			—		—			0.2
	Total cost of goods sold	$	0.2		$	11.2	$	—		$	11.4
	Severance and related costs	$	0.6		$	30.5	$	—		$	31.1
	Consulting	—			0.3		0.2			0.5
	Total selling, general and administrative expenses	$	0.6		$	30.8	$	0.2		$	31.6
	Consolidated total	$	0.8		$	42	$	0.2		$	43
	All of these charges have resulted or will result in cash outflows.
	Liabilities recorded for the SCAE Plan and changes therein for the first half of fiscal 2014 were as follows:
		Balance at May 26,			Costs Incurred		Costs Paid			Balance at November 24,
		2013			and Charged		or  Otherwise Settled			2013
					to Expense
	Severance	$	17.2		$	13.9	$	(11.2	)	$	19.9
	Multi-employer pension and related costs	11.2			0.7		(0.3		)	11.6
	Total	$	28.4		$	14.6	$	(11.5	)	$	31.5
	Acquisition-related Restructuring Costs
	During fiscal 2012, we started incurring costs in connection with actions taken to attain synergies when integrating businesses acquired prior to the third quarter of fiscal 2013. These costs, collectively referred to as "acquisition-related restructuring costs", include severance and other costs associated with consolidating facilities and administrative functions. In connection with the acquisition-related restructuring costs, we incurred pre-tax cash and non-cash charges of $17.3 million ($14.8 million in the Consumer Foods segment and $2.5 million in Corporate expenses) cumulatively since inception. In the second quarter and first half of fiscal 2014, we incurred $2.4 million and $3.3 million, respectively, in the Consumer Foods segment, primarily representing costs related to losses on the sale of buildings. In the second quarter and first half of fiscal 2013, we recognized charges of $2.2 million and $4.0 million, respectively, in relation to the acquisition-related restructuring costs. The acquisition-related restructuring costs are substantially complete.
	Administrative Efficiency Plan
	In August 2011, we made a decision to reorganize our Consumer Foods sales function and certain other administrative functions within our Commercial Foods and Corporate reporting segments. These actions, collectively referred to as the "Administrative Efficiency Plan", were intended to improve the efficiency and effectiveness of the affected sales and administrative functions. In connection with the Administrative Efficiency Plan, we have incurred pre-tax cash and non-cash charges of $18.7 million ($13.8 million in the Consumer Foods segment, $1.0 million in the Commercial Foods segment, and $3.9 million in Corporate expenses), primarily for severance and costs of employee relocation. In the second quarter and first half of fiscal 2013, we recognized charges of $0.9 million and $1.5 million, respectively, in relation to the Administrative Efficiency Plan. At the end of fiscal 2013, the Administrative Efficiency Plan was substantially complete.
	Network Optimization Plan
	During the third quarter of fiscal 2011, our Board of Directors approved a plan designed to optimize our manufacturing and distribution networks. We refer to this plan as the "Network Optimization Plan". The Network Optimization Plan consists of projects that involve, among other things, the exit of certain manufacturing facilities, the disposal of underutilized manufacturing assets, and actions designed to optimize our distribution network. In connection with the Network Optimization Plan, we have incurred pre-tax cash and non-cash charges of $76.7 million ($59.9 million in the Consumer Foods segment, $16.0 million in the Commercial Foods segment, and $0.8 million in Corporate expenses), primarily for impairments of property, plant and equipment, accelerated depreciation, severance and related costs, and plan implementation costs (e.g., consulting and employee relocation). In the second quarter and first half of fiscal 2013, we recognized charges of $0.7 million and $4.5 million, respectively, in relation to the Network Optimization Plan. At the end of fiscal 2013, the Network Optimization Plan was substantially complete.
	Ralcorp Pre-acquisition Restructuring Plans
	At the time of its acquisition, Ralcorp had certain initiatives underway designed to optimize its manufacturing and distribution networks. We refer to these actions and the related costs as "Ralcorp Pre-acquisition Restructuring Plans". These plans consist of projects that involve, among other things, the exit of certain manufacturing facilities. We expect to incur $4.2 million of charges that have resulted or will result in cash outflows of $2.5 million and non-cash charges of $1.7 million associated with the Ralcorp Pre-acquisition Restructure Plans. We have recognized cumulative (plan inception to November 24, 2013) pre-tax expenses of $3.9 million related to the Ralcorp Pre-acquisition Restructuring Plans. In the second quarter and first half of fiscal 2014, we recognized charges of $1.3 million and $2.6 million, respectively.

LONGTERM_DEBT

LONG-TERM DEBT	6 Months Ended
	Nov. 24, 2013
Debt Disclosure [Abstract]	'
LONG-TERM DEBT	'
	LONG-TERM DEBT
	During the second quarter of fiscal 2014, we repurchased $43.0 million of 4.65% senior notes due in 2043 prior to maturity, resulting in a net gain of $2.4 million.
	Net interest expense consists of:
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,			November 25,
		2013			2012			2013			2012
	Long-term debt	$	99.4		$	55.3		$	199.1		$	106.9
	Short-term debt	0.5			0.1			0.8			0.3
	Interest income	(0.7		)	(0.7		)	(1.3		)	(1.5		)
	Interest capitalized	(3.8		)	(1.3		)	(7.6		)	(3.0		)
		$	95.4		$	53.4		$	191		$	102.7
	Net interest expense for the second quarter and first half of fiscal 2014 was reduced by $2.4 million and $4.7 million, respectively, due to the impact of interest rate swap contracts entered into in the fourth quarter of fiscal 2010. Our net interest expense for the second quarter and first half of fiscal 2013 was reduced by $2.3 million and $4.5 million, respectively, due to the impact of the interest rate swap contracts. The interest rate swaps effectively changed our interest rates on the senior long-term debt instruments maturing in fiscal 2012 and 2014 from fixed to variable. During the second quarter of fiscal 2011, we terminated the interest rate swap contracts and received proceeds of $31.5 million. The cumulative adjustment to the fair value of the debt instruments that were hedged (the effective portion of the hedge) is being amortized as a reduction of interest expense over the remaining lives of the debt instruments (through fiscal 2014).
	As a result of our acquisition of Ralcorp, the senior unsecured notes issued in exchange for senior notes issued by Ralcorp of $716.0 million and the senior notes issued by Ralcorp that remain outstanding of $33.9 million were recorded at fair value. The combined fair value adjustment on these notes was $163.8 million and is being amortized within interest expense over the life of the respective notes. Our net interest expense for the second quarter and first half of fiscal 2014 was reduced by $1.8 million and $3.4 million, respectively, as a result of this amortization.

VARIABLE_INTEREST_ENTITIES

VARIABLE INTEREST ENTITIES	6 Months Ended
	Nov. 24, 2013
Variable Interest Entity, Measure of Activity [Abstract]	'
VARIABLE INTEREST ENTITIES	'
	VARIABLE INTEREST ENTITIES
	Variable Interest Entities Consolidated
	We own a 49.99% interest in Lamb Weston BSW, LLC ("Lamb Weston BSW"), a potato processing venture with Ochoa Ag Unlimited Foods, Inc. ("Ochoa"). We provide all sales and marketing services to Lamb Weston BSW. Under certain circumstances, we could be required to compensate Ochoa for lost profits resulting from significant production shortfalls ("production shortfalls"). Commencing on June 1, 2018, or on an earlier date under certain circumstances, we have a contractual right to purchase the remaining equity interest in Lamb Weston BSW from Ochoa (the "call option"). We are currently subject to a contractual obligation to purchase all of Ochoa's equity investment in Lamb Weston BSW at the option of Ochoa (the "put option"). The purchase prices under the call option and the put option (the "options") are based on the book value of Ochoa's equity interest at the date of exercise, as modified by an agreed-upon rate of return for the holding period of the investment balance. The agreed-upon rate of return varies depending on the circumstances under which any of the options are exercised. As of November 24, 2013, the price at which Ochoa had the right to put its equity interest to us was $41.9 million. This amount is presented within other noncurrent liabilities in our condensed consolidated balance sheets. We have determined that Lamb Weston BSW is a variable interest entity and that we are the primary beneficiary of the entity. Accordingly, we consolidate the financial statements of Lamb Weston BSW.
	We hold a promissory note from Lamb Weston BSW, the balance of which was $36.1 million at November 24, 2013. The promissory note is due in December 2015. The promissory note is currently accruing interest at a rate of LIBOR plus 200 basis points with a floor of 3.25%. In addition, as of November 24, 2013, we provided lines of credit of up to $15.0 million to Lamb Weston BSW. Borrowings under the lines of credit bear interest at a rate of LIBOR plus 200 basis points with a floor of 3.25%. The amounts owed by Lamb Weston BSW to the Company are not reflected in our condensed consolidated balance sheets, as they are eliminated in consolidation.
	Our variable interests in Lamb Weston BSW include an equity investment in the venture, the options, the promissory note, certain fees paid to us by Lamb Weston BSW for sales and marketing services, the contingent obligation related to production shortfalls, and the lines of credit advanced to Lamb Weston BSW. Our maximum exposure to loss as a result of our involvement with this venture is equal to our equity investment in the venture, the balance of the promissory note extended to the venture, the amount, if any, advanced under the lines of credit, and the amount, if any, by which the put option exercise price exceeds the fair value of the noncontrolling interest in Lamb Weston BSW upon its exercise. Also, in the event of a production shortfall, we could be required to compensate Ochoa for lost profits. It is not possible to determine the maximum exposure to losses from the potential exercise of the put option or from potential production shortfalls. However, we do not expect to incur material losses resulting from these potential exposures.
	Due to the consolidation of this variable interest entity, we reflected in our condensed consolidated balance sheets:
		November 24,		May 26,
		2013		2013
	Cash and cash equivalents	$	10.5	$	8.9
	Receivables, less allowance for doubtful accounts	24.4		16.4
	Inventories	1.4		1.4
	Prepaid expenses and other current assets	0.1		0.4
	Property, plant and equipment, net	53.5		54.8
	Goodwill	18.8		18.8
	Brands, trademarks and other intangibles, net	7.1		7.5
	Total assets	$	115.8	$	108.2
	Accounts payable	$	9.6	$	8.9
	Accrued payroll	0.6		0.6
	Other accrued liabilities	0.7		0.7
	Other noncurrent liabilities (minority interest)	34.1		30.7
	Total liabilities	$	45	$	40.9
	The liabilities recognized as a result of consolidating the Lamb Weston BSW entity do not represent additional claims on our general assets. The creditors of Lamb Weston BSW have claims only on the assets of Lamb Weston BSW. The assets recognized as a result of consolidating Lamb Weston BSW are the property of the venture and are not available to us for any other purpose, other than as a secured lender under the promissory note and lines of credit.
	Variable Interest Entities Not Consolidated
	We also have variable interests in certain other entities that we have determined to be variable interest entities, but for which we are not the primary beneficiary. We do not consolidate the financial statements of these entities.
	We hold a 50% interest in Lamb Weston RDO, a potato processing venture. We provide all sales and marketing services to Lamb Weston RDO. We receive a fee for these services based on a percentage of the net sales of the venture. We reflect the value of our ownership interest in this venture in other assets in our condensed consolidated balance sheets, based upon the equity method of accounting. The balance of our investment was $14.6 million and $15.2 million at November 24, 2013 and May 26, 2013, respectively, representing our maximum exposure to loss as a result of our involvement with this venture. The capital structure of Lamb Weston RDO includes owners' equity of $29.1 million and term borrowings from banks of $43.4 million as of November 24, 2013. We have determined that we do not have the power to direct the activities that most significantly impact the economic performance of this venture.
	We lease certain office buildings from entities that we have determined to be variable interest entities. The lease agreements with these entities include fixed-price purchase options for the assets being leased, representing our only variable interest in these lessor entities. These leases are accounted for as operating leases, and accordingly, there are no material assets or liabilities associated with these entities included in our condensed consolidated balance sheets. We have no material exposure to loss from our variable interests in these entities. We have determined that we do not have the power to direct the activities that most significantly impact the economic performance of these entities. In making this determination, we have considered, among other items, the terms of the lease agreements, the expected remaining useful lives of the assets leased, and the capital structure of the lessor entities.

GOODWILL_AND_OTHER_IDENTIFIABL

GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS	6 Months Ended
	Nov. 24, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS	'
	GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS
	The change in the carrying amount of goodwill for the first half of fiscal 2014 was as follows:
		Consumer			Commercial		Private Brands		Total
		Foods			Foods
	Balance as of May 26, 2013	$	3,760.50		$	857.4	$	3,826.20	$	8,444.10
	Currency translation and purchase accounting adjustments	(16.2		)	0.5		27.5		11.8
	Balance as of November 24, 2013	$	3,744.30		$	857.9	$	3,853.70	$	8,455.90
	Other identifiable intangible assets were as follows:
		November 24, 2013					May 26, 2013
		Gross			Accumulated		Gross		Accumulated
		Carrying			Amortization		Carrying		Amortization
		Amount					Amount
	Non-amortizing intangible assets	$	1,134.60		$	—	$	1,139.70	$	—
	Amortizing intangible assets	2,399.80			178.5		2,400.40		122
		$	3,534.40		$	178.5	$	3,540.10	$	122
	Non-amortizing intangible assets are comprised of brands and trademarks.
	Amortizing intangible assets, carrying a weighted average life of approximately 23 years, are principally composed of customer relationships, licensing arrangements, and intellectual property. Based on amortizing assets recognized in our condensed consolidated balance sheet as of November 24, 2013, amortization expense is estimated to average $110.1 million for each of the next five years.

DERIVATIVE_FINANCIAL_INSTRUMEN

DERIVATIVE FINANCIAL INSTRUMENTS	6 Months Ended
	Nov. 24, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
DERIVATIVE FINANCIAL INSTRUMENTS	'
	DERIVATIVE FINANCIAL INSTRUMENTS
	Our operations are exposed to market risks from adverse changes in commodity prices affecting the cost of raw materials and energy, foreign currency exchange rates, and interest rates. In the normal course of business, these risks are managed through a variety of strategies, including the use of derivatives.
	Commodity and commodity index futures and option contracts are used from time to time to economically hedge commodity input prices on items such as natural gas, vegetable oils, proteins, packaging materials, dairy, grains, and electricity. Generally, we economically hedge a portion of our anticipated consumption of commodity inputs for periods of up to 36 months. We may enter into longer-term economic hedges on particular commodities, if deemed appropriate. As of November 24, 2013, we had economically hedged certain portions of our anticipated consumption of commodity inputs using derivative instruments with expiration dates through June 2015.
	In order to reduce exposures related to changes in foreign currency exchange rates, we enter into forward exchange, option, or swap contracts from time to time for transactions denominated in a currency other than the applicable functional currency. This includes, but is not limited to, hedging against foreign currency risk in purchasing inventory and capital equipment, sales of finished goods, and future settlement of foreign-denominated assets and liabilities. As of November 24, 2013, we had economically hedged certain portions of our foreign currency risk in anticipated transactions using derivative instruments with expiration dates through July 2017.
	From time to time, we may use derivative instruments, including interest rate swaps, to reduce risk related to changes in interest rates. This includes, but is not limited to, hedging against increasing interest rates prior to the issuance of long-term debt and hedging the fair value of our senior long-term debt.
	Derivatives Designated as Cash Flow Hedges
	We have entered into interest rate swap contracts to hedge the interest rate risk related to our forecasted issuance of long-term debt in 2014 (based on the anticipated refinancing of the senior long-term debt maturing at that time). We designated these interest rate swaps as cash flow hedges of the forecasted interest payments related to this debt issuance. The pre-tax unrealized loss associated with these derivatives, which is deferred in accumulated other comprehensive loss at November 24, 2013 was $41.8 million.
	The net notional amount of these interest rate derivatives at November 24, 2013 was $500.0 million. Hedge ineffectiveness for cash flow hedges may impact net earnings when a change in the value of a hedge does not entirely offset the change in the value of the underlying hedged item. We do not exclude any component of the hedging instrument’s gain or loss when assessing ineffectiveness. The ineffectiveness associated with derivatives designated as cash flow hedges from continuing operations was not material to our results of operations in any period presented.
	During fiscal 2013, we entered into interest rate swap contracts to hedge a portion of the interest rate risk related to our issuance of long-term debt to help finance the acquisition of Ralcorp. We settled these contracts during the third quarter of fiscal 2013 resulting in a deferred gain of $4.2 million on senior notes maturing in 2043 and a deferred loss of $2.0 million on senior notes maturing in 2023, both recognized in other comprehensive income. These amounts are being amortized as a component of net interest expense over the lives of the related debt instruments. The unamortized amounts of the deferred gain and deferred loss at November 24, 2013 were $4.2 million and $1.9 million, respectively.
	Derivatives Designated as Fair Value Hedges
	During fiscal 2010, we entered into interest rate swap contracts to hedge the fair value of certain of our senior long-term debt instruments maturing in fiscal 2012 and 2014. We designated these interest rate swap contracts as fair value hedges of the debt instruments.
	Changes in fair value of such derivative instruments are immediately recognized in earnings along with changes in the fair value of the items being hedged (based solely on the change in the benchmark interest rate). These gains and losses are classified within selling, general and administrative expenses.
	During fiscal 2011, we terminated the interest rate swap contracts and received proceeds of $31.5 million. The cumulative adjustment to the fair value of the debt instruments being hedged is included in long-term debt and is being amortized as a reduction of interest expense over the remaining lives of the debt instruments (through fiscal 2014). At November 24, 2013, the unamortized amount was $3.8 million.
	The entire change in fair value of the derivative instruments was included in our assessment of hedge effectiveness.
	Economic Hedges of Forecasted Cash Flows
	Many of our derivatives do not qualify for, and we do not currently designate certain commodity or foreign currency derivatives to achieve, hedge accounting treatment. We reflect realized and unrealized gains and losses from derivatives used to economically hedge anticipated commodity consumption and to mitigate foreign currency cash flow risk in earnings immediately within general corporate expense (within cost of goods sold). The gains and losses are reclassified to segment operating results in the period in which the underlying item being economically hedged is recognized in cost of goods sold.
	Economic Hedges of Fair Values — Foreign Currency Exchange Rate Risk
	We may use options and cross currency swaps to economically hedge the fair value of certain monetary assets and liabilities (including intercompany balances) denominated in a currency other than the functional currency. These derivatives are marked-to-market with gains and losses immediately recognized in selling, general and administrative expenses. These substantially offset the foreign currency transaction gains or losses recognized as values of the monetary assets or liabilities being economically hedged change.
	Derivative Activity in Our Milling Operations
	We also use derivative instruments within our milling operations, which are part of the Commercial Foods segment. Derivative instruments used to economically hedge commodity inventories and forward purchase and sales contracts within the milling operations are marked-to-market such that realized and unrealized gains and losses are immediately included in operating results. The underlying inventory and forward contracts being hedged are also marked-to-market with changes in market value recognized immediately in operating results.
	For commodity derivative trading activities within our milling operations that are not intended to mitigate commodity input cost risk, the derivative instrument is marked-to-market each period with gains and losses included in net sales of the Commercial Foods segment. There were no material gains or losses from derivative trading activities in the periods being reported.
	All derivative instruments are recognized on the balance sheets at fair value (refer to Note 16 for additional information related to fair value measurements). The fair value of derivative assets is recognized within prepaid expenses and other current assets, while the fair value of derivative liabilities is recognized within other accrued liabilities. In accordance with generally accepted accounting principles, we offset certain derivative asset and liability balances, as well as certain amounts representing rights to reclaim cash collateral and obligations to return cash collateral, where master netting agreements provide for legal right of setoff. At November 24, 2013 and May 26, 2013, amounts representing a right to reclaim cash collateral of $4.6 million and $10.2 million, respectively, were included in prepaid expenses and other current assets in our condensed consolidated balance sheets.
	Derivative assets and liabilities and amounts representing a right to reclaim cash collateral or obligation to return cash collateral were reflected in our condensed consolidated balance sheets as follows:
		November 24,				May 26,
		2013				2013
	Prepaid expenses and other current assets	$	57.1			$	78.6
	Other accrued liabilities	84.7				137.9
	The following table presents our derivative assets and liabilities, at November 24, 2013, on a gross basis, prior to the offsetting of $15.6 million to total derivative assets and $20.2 million to total derivative liabilities where legal right of setoff existed:
		Derivative Assets						Derivative Liabilities
		Balance Sheet		Fair Value				Balance Sheet		Fair Value
		Location						Location
	Interest rate contracts	Prepaid expenses and other current assets		$	4.6			Other accrued liabilities		$	46.4
	Total derivatives designated as hedging instruments			$	4.6					$	46.4
	Commodity contracts	Prepaid expenses and other current assets		$	48.8			Other accrued liabilities		$	55
	Foreign exchange contracts	Prepaid expenses and other current assets		18.3				Other accrued liabilities		3.5
	Other	Prepaid expenses and other current assets		1				Other accrued liabilities		—
	Total derivatives not designated as hedging instruments			$	68.1					$	58.5
	Total derivatives			$	72.7					$	104.9
	The following table presents our derivative assets and liabilities at May 26, 2013, on a gross basis, prior to the setoff of $12.5 million to total derivative assets and $22.7 million to total derivative liabilities where legal right of setoff existed:
		Derivative Assets						Derivative Liabilities
		Balance Sheet		Fair Value				Balance Sheet		Fair Value
		Location						Location
	Interest rate contracts	Prepaid expenses and other current assets		$	—			Other accrued liabilities		$	104.5
	Total derivatives designated as hedging instruments			$	—					$	104.5
	Commodity contracts	Prepaid expenses and other current assets		$	70.7			Other accrued liabilities		$	53.7
	Foreign exchange contracts	Prepaid expenses and other current assets		18.4				Other accrued liabilities		2.4
	Other	Prepaid expenses and other current assets		2				Other accrued liabilities		—
	Total derivatives not designated as hedging instruments			$	91.1					$	56.1
	Total derivatives			$	91.1					$	160.6
	The location and amount of gains (losses) from derivatives not designated as hedging instruments in our condensed consolidated statements of earnings were as follows:
	Derivatives Not Designated as Hedging Instruments		Location in Condensed Consolidated Statement of Earnings of		Amount of Gain (Loss)
			Gain (Loss) Recognized on Derivatives		Recognized on Derivatives
					in Condensed Consolidated
					Statement of Earnings for
					the Thirteen Weeks Ended
					November 24, 2013				November 25, 2012
	Commodity contracts		Net sales		$	(1.0	)		$	—
	Commodity contracts		Cost of goods sold		2.7				7.1
	Foreign exchange contracts		Cost of goods sold		2.1				5.4
	Commodity contracts		Selling, general and administrative expense		—				(0.1		)
	Foreign exchange contracts		Selling, general and administrative expense		0.6				(0.5		)
	Total gain from derivative instruments not designated as hedging instruments				$	4.4			$	11.9
	Derivatives Not Designated as Hedging Instruments		Location in Condensed Consolidated Statement of Earnings of		Amount of Gain (Loss)
Gain (Loss) Recognized on Derivatives			Recognized on Derivatives
			in Condensed Consolidated
			Statement of Earnings for
			the Twenty-six Weeks Ended
			November 24, 2013				November 25, 2012
Commodity contracts		Net sales		$	(2.0	)		$	(0.7	)
Commodity contracts		Cost of goods sold		17.4				126.3
Foreign exchange contracts		Cost of goods sold		0.9				1.3
Commodity contracts		Selling, general and administrative expense		—				0.1
Foreign exchange contracts		Selling, general and administrative expense		1.2				(6.5		)
Total gain from derivative instruments not designated as hedging instruments				$	17.5			$	120.5
As of November 24, 2013, our open commodity contracts had a notional value (defined as notional quantity times market value per notional quantity unit) of $1.8 billion and $2.0 billion for purchase and sales contracts, respectively. As of May 26, 2013, our open commodity contracts had a notional value of $1.8 billion and $1.5 billion for purchase and sales contracts, respectively. The notional amount of our foreign currency forward and cross currency swap contracts as of November 24, 2013 and May 26, 2013 was $348.6 million and $359.0 million, respectively.
We enter into certain commodity, interest rate, and foreign exchange derivatives with a diversified group of counterparties. We continually monitor our positions and the credit ratings of the counterparties involved and limit the amount of credit exposure to any one party. These transactions may expose us to potential losses due to the risk of nonperformance by these counterparties. We have not incurred a material loss due to nonperformance in any period presented and do not expect to incur any such material loss. We also enter into futures and options transactions through various regulated exchanges.
At November 24, 2013, the maximum amount of loss due to the credit risk of the counterparties, had the counterparties failed to perform according to the terms of the contracts, was $51.9 million.

SHAREBASED_PAYMENTS

SHARE-BASED PAYMENTS	6 Months Ended
	Nov. 24, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
SHARE-BASED PAYMENTS	'
	SHARE-BASED PAYMENTS
	For the second quarter and first half of fiscal 2014, we recognized total stock-based compensation expense (including stock options, restricted stock units, cash-settled restricted stock units, and performance shares) of $14.9 million and $32.1 million, respectively. For the second quarter and first half of fiscal 2013, we recognized total stock-based compensation expense of $14.7 million and $27.8 million, respectively. For the first half of fiscal 2014, we granted 0.8 million restricted stock units at a weighted average grant date price of $36.53, 0.8 million cash-settled restricted stock units at a weighted average grant date price of $36.89, 3.6 million stock options at a weighted average exercise price of $36.87, and 0.4 million performance shares at a weighted average grant date price of $35.05.
	Performance shares are granted to selected executives and other key employees with vesting contingent upon meeting various Company-wide performance goals. The performance goals for the performance periods ending in fiscal 2014 and 2015 are based upon our operating cash flow return on operations, a measure of operating cash flow as a percentage of invested capital and revenue growth measured over a defined performance period, and revenue growth. The performance goals for the performance period ending in fiscal 2016 are based upon our earnings before interest, taxes, depreciation, and amortization ("EBITDA") return on capital measured over the defined performance period and revenue growth. The awards actually earned will range from zero to two hundred twenty percent of the targeted number of performance shares for each of the performance periods. A payout equal to 25% of approved target incentive is required to be paid out if we achieve a threshold level of cash flow return on operations for the performance periods ending in fiscal 2014 and 2015, and a threshold level of EBITDA return on capital for the performance period ending in fiscal 2016. Awards, if earned, will be paid in shares of our common stock. Subject to limited exceptions set forth in the performance share plan, any shares earned will be distributed at the end of the performance period. The value of the performance shares is adjusted based upon the market price of our common stock at the end of each reporting period and amortized as compensation expense over the vesting period.
	The weighted average Black-Scholes assumptions for stock options granted during the first half of fiscal 2014 were as follows:
	Expected volatility (%)	21.13
	Dividend yield (%)	3.24
	Risk-free interest rate (%)	1.37
	Expected life of stock option (years)	4.91
	The weighted average value of stock options granted during the first half of fiscal 2014 was $4.71 per option based upon a Black-Scholes methodology.

EARNINGS_PER_SHARE

EARNINGS PER SHARE	6 Months Ended
	Nov. 24, 2013
Earnings Per Share [Abstract]	'
EARNINGS PER SHARE	'
	EARNINGS PER SHARE
	Basic earnings per share is calculated on the basis of weighted average outstanding common shares. Diluted earnings per share is computed on the basis of basic weighted average outstanding common shares adjusted for the dilutive effect of stock options, restricted stock unit awards, and other dilutive securities.
	The following table reconciles the income and average share amounts used to compute both basic and diluted earnings per share:
		Thirteen weeks ended					Twenty-six weeks ended
		November 24,		November 25,			November 24,		November 25,
		2013		2012			2013		2012
	Net income available to ConAgra Foods, Inc. common stockholders:
	Income from continuing operations attributable to ConAgra Foods, Inc. common stockholders	$	230.3	$	212.6		$	373.5	$	463.1
	Income (loss) from discontinued operations, net of tax, attributable to ConAgra Foods, Inc. common stockholders	18.4		(1.0		)	19.5		(1.4		)
	Net income attributable to ConAgra Foods, Inc. common stockholders	$	248.7	$	211.6		$	393	$	461.7
	Less: Increase in redemption value of noncontrolling interests in excess of earnings allocated	0.4		0.4			0.8		0.8
	Net income available to ConAgra Foods, Inc. common stockholders	$	248.3	$	211.2		$	392.2	$	460.9
	Weighted average shares outstanding:
	Basic weighted average shares outstanding	421.1		405.9			421		406.5
	Add: Dilutive effect of stock options, restricted stock unit awards, and other dilutive securities	5.9		5.8			6.5		5.3
	Diluted weighted average shares outstanding	427		411.7			427.5		411.8
	For the second quarter and first half of fiscal 2014, there were 3.6 million and 2.6 million stock options outstanding, respectively, that were excluded from the computation of shares contingently issuable upon the exercise of stock options because exercise prices exceeded the average market value of our common stock during the period. For the second quarter and first half of fiscal 2013, there were 4.9 million and 12.0 million stock options, respectively, excluded from the calculation.

INVENTORIES

INVENTORIES	6 Months Ended
	Nov. 24, 2013
Disclosure Inventories Major Classes Of Inventories [Abstract]	'
INVENTORIES	'
	INVENTORIES
	The major classes of inventories were as follows:
		November 24,		May 26,
		2013		2013
	Raw materials and packaging	$	873.5	$	733.2
	Work in process	183.9		118
	Finished goods	1,577.80		1,398.90
	Supplies and other	140.9		140.2
	Total	$	2,776.10	$	2,390.30

INCOME_TAXES

INCOME TAXES	6 Months Ended
	Nov. 24, 2013
Income Tax Disclosure [Abstract]	'
INCOME TAXES	'
	INCOME TAXES
	Our income tax expense from continuing operations for the second quarter of fiscal 2014 and 2013 was $117.9 million and $109.7 million, respectively. Income tax expense from continuing operations for the first half of fiscal 2014 and 2013 was $151.8 million and $233.5 million, respectively. The effective tax rate (calculated as the ratio of income tax expense to pre-tax income from continuing operations, inclusive of equity method investment earnings) from continuing operations was approximately 34% and 29% for the second quarter and first half of fiscal 2014, respectively, and 34% and 33% for the second quarter and first half of 2013, respectively. The decrease in the effective tax rate is primarily due to a change in estimate related to the tax methods used for certain international sales, a change in deferred state tax rates relating to the integration of Ralcorp activity for tax purposes, and settlement of a tax issue in Mexico that was previously reserved.
	The amount of gross unrecognized tax benefits for uncertain tax positions, including positions impacting only the timing of tax benefits, was $100.4 million as of November 24, 2013 and $100.0 million as of May 26, 2013. Included in the balance was $8.0 million as of both November 24, 2013 and May 26, 2013, for tax positions for which the ultimate deductibility is highly certain but for which there is uncertainty about the timing of such deductibility. Because of the impact of deferred tax accounting, the disallowance of the shorter deductibility period would not affect the annual effective tax rate but would accelerate the payment of cash to the taxing authority to an earlier period. Any associated interest and penalties imposed would affect the tax rate. The gross unrecognized tax benefits excluded related liabilities for gross interest and penalties of $30.2 million and $30.4 million as of November 24, 2013 and May 26, 2013, respectively.
	The net amount of unrecognized tax benefits at November 24, 2013 and May 26, 2013 that, if recognized, would impact the Company's effective tax rate was $65.0 million and $61.8 million, respectively. Recognition of these tax benefits would have a favorable impact on the Company's effective tax rate.
	We estimate that it is reasonably possible that the amount of gross unrecognized tax benefits will decrease by up to $8.0 million over the next twelve months due to various federal, state, and foreign audit settlements and the expiration of statutes of limitations.

CONTINGENCIES

CONTINGENCIES	6 Months Ended
	Nov. 24, 2013
Commitments and Contingencies Disclosure [Abstract]	'
CONTINGENCIES	'
	CONTINGENCIES
	In fiscal 1991, we acquired Beatrice Company ("Beatrice"). As a result of the acquisition and the significant pre-acquisition contingencies of the Beatrice businesses and its former subsidiaries, our condensed consolidated post-acquisition financial statements reflect liabilities associated with the estimated resolution of these contingencies. These include various litigation and environmental proceedings related to businesses divested by Beatrice prior to its acquisition by us. The litigation includes suits against a number of lead paint and pigment manufacturers, including ConAgra Grocery Products Company (“ConAgra Grocery Products”) and the Company as alleged successors to W. P. Fuller Co., a lead paint and pigment manufacturer owned and operated by Beatrice until 1967. Although decisions favorable to us have been rendered in Rhode Island, New Jersey, Wisconsin, and Ohio, we remain a defendant in active suits in Illinois and California. The Illinois suit seeks class-wide relief in the form of medical monitoring for elevated levels of lead in blood. In California, a number of cities and counties have joined in a consolidated action seeking abatement of the alleged public nuisance. A trial of the California case concluded in the Superior Court of California for the County of Santa Clara on September 23, 2013, and on December 16, 2013, the court issued a proposed statement of decision (the “proposed decision”) against ConAgra Grocery Products, a wholly owned subsidiary of the Company, and two other defendants. The proposed decision orders the creation of a California abatement fund in the amount of $1.1 billion. Proposed liability is joint and several. The Company disagrees with this outcome and believes ConAgra Grocery Products did not inherit any liabilities of W. P. Fuller Co. The Company will continue to vigorously defend itself in this case and will appeal the decision. The Company expects the appeal process will last several years. The absence of any linkage between ConAgra Grocery Products and W. P. Fuller Co. is a critical issue that the Company will continue to advance throughout the appeals process. It is not possible to estimate exposure in this case or the remaining case in Illinois (which is based on different legal theories). If ultimately necessary, the Company will look to its insurance policies for coverage; its carriers are on notice. However, the Company cannot absolutely assure that the final resolution of this matter will not a have a material adverse effect on its financial condition, results of operations, or liquidity.
	The environmental proceedings associated with Beatrice include litigation and administrative proceedings involving Beatrice's status as a potentially responsible party at 36 Superfund, proposed Superfund, or state-equivalent sites. These sites involve locations previously owned or operated by predecessors of Beatrice that used or produced petroleum, pesticides, fertilizers, dyes, inks, solvents, PCBs, acids, lead, sulfur, tannery wastes, and/or other contaminants. Beatrice has paid or is in the process of paying its liability share at 34 of these sites. Reserves for these matters have been established based on our best estimate of the undiscounted remediation liabilities, which estimates include evaluation of investigatory studies, extent of required clean-up, the known volumetric contribution of Beatrice and other potentially responsible parties, and its experience in remediating sites. The reserves for Beatrice-related environmental matters totaled $62.6 million as of November 24, 2013, a majority of which relates to the Superfund and state-equivalent sites referenced above. We expect expenditures for Beatrice-related environmental matters to continue for up to 18 years.
	In certain limited situations, we will guarantee an obligation of an unconsolidated entity. At the time in which we initially provide such a guarantee, we assess the risk of financial exposure to us under these agreements. We consider the credit-worthiness of the guaranteed party, the value of any collateral pledged against the related obligation, and any other factors that may mitigate our risk. We actively monitor market and entity-specific conditions that may result in a change of our assessment of the risk of loss under these agreements.
	We guarantee certain leases and other commercial obligations resulting from the 2002 divestiture of our fresh beef and pork operations. The remaining terms of these arrangements do not exceed two years and the maximum amount of future payments we have guaranteed was $6.8 million as of November 24, 2013.
	We are a party to various potato supply agreements. Under the terms of certain such potato supply agreements, we have guaranteed repayment of short-term bank loans of the potato suppliers, under certain conditions. At November 24, 2013, the amount of supplier loans we have effectively guaranteed was $21.9 million. We have not established a liability for these guarantees, as we have determined that the likelihood of our required performance under the guarantees is remote.
	We were a party to a supply agreement with an onion processing company where we had guaranteed, under certain conditions, repayment of a secured loan (the "Secured Loan") of this onion supplier to the onion supplier's lender. The amount of our guarantee was $25.0 million. During the fourth quarter of fiscal 2012, we received notice from the lender that the onion supplier had defaulted on the Secured Loan and we exercised our option to purchase the Secured Loan from the lender for $40.8 million, thereby assuming first-priority secured rights to the underlying collateral for the amount of the Secured Loan, and canceling our guarantee. The onion supplier filed for bankruptcy during the fourth quarter of fiscal 2012. During the second quarter of fiscal 2013, we acquired ownership and all rights to the Secured Loan's collateral, consisting of agricultural land and a processing facility. During the third quarter of fiscal 2013, we recognized an impairment charge of $10.2 million in our Commercial Foods segment to reduce the carrying amount of these assets to their estimated fair value based upon updated appraisals. During the second quarter of fiscal 2014, we recognized an additional impairment charge of $8.9 million in our Commercial Foods segment to reduce the carrying amount of the plant assets to their estimated fair value based upon expected sales proceeds. Based on our estimate of the value of the land and processing facility, we expect to recover the remaining carrying value through our sale of these assets.
	Federal income tax credits were generated related to our sweet potato production facility in Delhi, Louisiana. Third parties invested in certain of these income tax credits. We have guaranteed these third parties the face value of these income tax credits over their statutory lives, through fiscal 2017, in the event that the income tax credits are recaptured or reduced. The face value of the income tax credits was $21.2 million as of November 24, 2013. We believe the likelihood of the recapture or reduction of the income tax credits is remote, and therefore we have not established a liability in connection with this guarantee.
	We are a party to a number of lawsuits and claims arising out of our ongoing business operations. Among these, there are lawsuits, claims, and matters related to the February 2007 recall of our peanut butter products. Among the matters outstanding during fiscal 2014 related to the peanut butter recall is an ongoing investigation by the U.S. Attorney's office in Georgia and the Consumer Protection Branch of the Department of Justice. In fiscal 2011, we received formal requests from the U.S. Attorney's office in Georgia seeking a variety of records and information related to the operations of our peanut butter manufacturing facility in Sylvester, Georgia. These requests relate to the June 2007 execution of a search warrant at our facility following the February 2007 recall. During fiscal 2013 and 2012, we recognized charges of $7.5 million and $17.5 million, respectively, in connection with this matter. We have been and continue to be engaged in ongoing discussions with the U.S. Attorney's office and the Department of Justice in regard to the investigation. We are pursuing a negotiated resolution, which we believe will likely involve a misdemeanor criminal disposition under the Food, Drug & Cosmetics Act. We believe that we have adequate reserves to cover potential financial exposure for this matter.
	In addition to the investigation noted above, we were previously engaged in litigation against an insurance carrier to recover our settlement expenditures and defense costs associated with the peanut butter recall. During fiscal 2009, we recognized a charge of $24.8 million in connection with the insurance coverage dispute. During the fourth quarter of fiscal 2013, we reached a settlement on the insurance dispute, pursuant to which we were paid $25.0 million, in addition to retaining the defense costs previously reimbursed to us. We recognized the $25.0 million in income as a reduction to selling, general and administrative expenses during the fourth quarter of fiscal 2013.
	In June 2009, an accidental explosion occurred at our manufacturing facility in Garner, North Carolina. This facility was the primary production facility for our Slim Jim® branded meat snacks. In June 2009, the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives announced its determination that the explosion was the result of an accidental natural gas release, and not a deliberate act. During the fourth quarter of fiscal 2011, we settled our property and business interruption claims related to the Garner accident with our insurance providers. During the fourth quarter of fiscal 2011, Jacobs Engineering Group Inc., our engineer and project manager at the site, filed a declaratory judgment action against us seeking indemnity for personal injury claims brought against it as a result of the accident. In the first quarter of fiscal 2012, our motion for summary judgment was granted and the suit was dismissed without prejudice on the basis that the suit was filed prematurely. We will continue to defend this action vigorously. Any exposure in this case is expected to be limited to the applicable insurance deductible.
	In April 2010, an accidental explosion occurred at our flour milling facility in Chester, Illinois. Two employees of a subcontractor and one employee of the primary contractor, Westside Salvage ("Westside"), on the site at the time of the accident suffered injuries. Suit was initiated against Westside and the Company for personal injury claims. During the first quarter of fiscal 2013, a jury in Federal Court sitting in East St. Louis, Illinois, returned a verdict against the Company and Westside and in favor of the three employees. The verdict was in the amount of $77.5 million in compensatory damages apportioned between the Company and Westside and $100.0 million in punitive damages against the Company. Post-trial motions were filed by the Company and the trial court reduced the punitive award by approximately $7 million. We filed an appeal with the Seventh Federal Circuit Court of Appeals on the verdict and the damages in the third quarter of fiscal 2013 and continue to vigorously defend ourselves. Any exposure in this case is expected to be limited to the applicable insurance deductible, for which an amount of $3 million was accrued in a prior period.
	Prior to our ownership of Ralcorp, a lawsuit was brought in the U.S. District Court for the Eastern District of Texas by Frito-Lay North America, Inc. against Ralcorp and Medallion Foods, Inc., a subsidiary of Ralcorp, alleging that certain products manufactured by Medallion infringed Frito-Lays' patents and trademarks and misappropriated trade secrets. After a jury trial during the fourth quarter of fiscal 2013, jurors delivered a verdict in favor of Medallion and Ralcorp on all claims. Frito-Lay has filed a motion for a new trial. We will continue to defend this action vigorously.
	After taking into account liabilities recognized for all of the foregoing matters, management believes the ultimate resolution of such matters should not have a material adverse effect on our financial condition, results of operations, or liquidity. It is reasonably possible that a change in one of the estimates of the foregoing matters may occur in the future and, as noted, while unlikely, the lead paint matter could result in a material final judgment. Costs of legal services associated with the foregoing matters are recognized in earnings as services are provided.

PENSION_AND_POSTRETIREMENT_BEN

PENSION AND POSTRETIREMENT BENEFITS	6 Months Ended
	Nov. 24, 2013
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]	'
PENSION AND POSTRETIREMENT BENEFITS	'
	PENSION AND POSTRETIREMENT BENEFITS
	We have defined benefit retirement plans ("plans") for eligible salaried and hourly employees. Benefits are based on years of credited service and average compensation or stated amounts for each year of service. We also sponsor postretirement plans which provide certain medical and dental benefits ("other postretirement benefits") to qualifying U.S. employees.
	Components of pension benefit and other postretirement benefit costs included:
		Pension Benefits
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,			November 25,
		2013			2012			2013			2012
	Service cost	$	22.2		$	20.1		$	44.5		$	40.3
	Interest cost	37.8			36.6			75.6			73.2
	Expected return on plan assets	(63.2		)	(52.2		)	(126.4		)	(104.5		)
	Amortization of prior service cost	0.9			0.8			1.8			1.6
	Curtailment loss	—			—			—			0.8
	Benefit cost — Company plans	(2.3		)	5.3			(4.5		)	11.4
	Pension benefit cost — multi-employer plans	3.6			2.2			6.7			4.3
	Total benefit cost	$	1.3		$	7.5		$	2.2		$	15.7
		Postretirement Benefits
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,			November 25,
		2013			2012			2013			2012
	Service cost	$	0.2		$	0.1		$	0.4		$	0.2
	Interest cost	2.4			2.5			4.8			5
	Amortization of prior service cost	(1.8		)	(2.1		)	(3.6		)	(4.2		)
	Recognized net actuarial loss	1.7			1.5			3.4			3
	Total cost	$	2.5		$	2		$	5		$	4
	During the second quarter and first half of fiscal 2014, we contributed $5.6 million and $10.1 million, respectively, to our pension plans and contributed $5.2 million and $10.5 million, respectively, to our other postretirement plans. Based upon the current funded status of the plans and the current interest rate environment, we anticipate making further contributions of approximately $7.2 million to our pension plans for the remainder of fiscal 2014. We anticipate making further contributions of $15.5 million to our other postretirement plans during the remainder of fiscal 2014. These estimates are based on current tax laws, plan asset performance, and liability assumptions, which are subject to change.

STOCKHOLDERS_EQUITY

STOCKHOLDERS' EQUITY	6 Months Ended
	Nov. 24, 2013
Stockholders' Equity Note [Abstract]	'
STOCKHOLDERS' EQUITY	'
	STOCKHOLDERS' EQUITY
	The following table presents a reconciliation of our stockholders' equity accounts for the twenty-six weeks ended November 24, 2013:
		ConAgra Foods, Inc. Stockholders' Equity
		Common	Common		Additional			Retained			Accumulated			Treasury			Noncontrolling			Total
		Shares	Stock		Paid-in			Earnings			Other			Stock			Interests			Equity
					Capital						Comprehensive
											Income (Loss)
	Balance at May 26, 2013	567.9	$	2,839.70	$	1,006.20		$	5,129.50		$	(196.1	)	$	(3,514.9	)	$	98.6		$	5,363.00
	Stock option and incentive plans				12.1			(0.5		)				84.7						96.3
	Currency translation adjustment										(11.1		)				(9.9		)	(21.0		)
	Issuance of treasury shares																			—
	Repurchase of common shares													(100.0		)				(100.0		)
	Unrealized gain on securities										0.4									0.4
	Derivative adjustment, net of reclassification adjustment										39.4									39.4
	Activities of noncontrolling interests				(0.8		)										0.8			—
	Pension and postretirement healthcare benefits										1.2									1.2
	Dividends declared on common stock; $0.50 per share							(210.6		)										(210.6		)
	Net income attributable to ConAgra Foods, Inc.							393												393
	Balance at November 24, 2013	567.9	$	2,839.70	$	1,017.50		$	5,311.40		$	(166.2	)	$	(3,530.2	)	$	89.5		$	5,561.70

FAIR_VALUE_MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Nov. 24, 2013
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]	'
FAIR VALUE MEASUREMENTS	'
	FAIR VALUE MEASUREMENTS
	FASB guidance establishes a three-level fair value hierarchy based upon the assumptions (inputs) used to price assets or liabilities. The three levels of inputs used to measure fair value are as follows:
	Level 1  — Unadjusted quoted prices in active markets for identical assets or liabilities,
	Level 2  — Observable inputs other than those included in Level 1, such as quoted prices for similar assets and liabilities in active markets or quoted prices for identical assets or liabilities in inactive markets, and
	Level 3  — Unobservable inputs reflecting our own assumptions and best estimate of what inputs market participants would use in pricing the asset or liability.
	The fair values of our Level 2 derivative instruments were determined using valuation models that use market observable inputs including interest rate curves and both forward and spot prices for currencies and commodities. Derivative assets and liabilities included in Level 2 primarily represent commodity and foreign currency option and forward contacts, interest rate swaps, and cross-currency swaps.
	The following table presents our financial assets and liabilities measured at fair value on a recurring basis based upon the level within the fair value hierarchy in which the fair value measurements fall, as of November 24, 2013:
		Level 1		Level 2		Level 3		Net Value
	Assets:
	Derivative assets	$	5.2	$	51.9	$	—	$	57.1
	Available-for-sale securities	2.5		—		—		2.5
	Deferred compensation assets	6.8		—		—		6.8
	Total assets	$	14.5	$	51.9	$	—	$	66.4
	Liabilities:
	Derivative liabilities	$	—	$	84.7	$	—	$	84.7
	Deferred compensation liabilities	41.3		—		—		41.3
	Total liabilities	$	41.3	$	84.7	$	—	$	126
	The following table presents our financial assets and liabilities measured at fair value on a recurring basis based upon the level within the fair value hierarchy in which the fair value measurements fall, as of May 26, 2013:
		Level 1		Level 2		Level 3		Net Value
	Assets:
	Derivative assets	$	13.9	$	64.7	$	—	$	78.6
	Available-for-sale securities	6.1		—		—		6.1
	Deferred compensation assets	6.9		—		—		6.9
	Total assets	$	26.9	$	64.7	$	—	$	91.6
	Liabilities:
	Derivative liabilities	$	—	$	137.9	$	—	$	137.9
	Deferred compensation liabilities	35.9		—		—		35.9
	Total liabilities	$	35.9	$	137.9	$	—	$	173.8
	Certain assets and liabilities, including long-lived assets, goodwill, asset retirement obligations, and cost and equity investments are measured at fair value on a nonrecurring basis.
	During the second quarter of fiscal 2014, the $19.7 million carrying amount of the processing facility (level 3 asset) acquired from an onion supplier was written-down to its fair value of $10.8 million, resulting in an impairment charge of $8.9 million, which is included in selling, general and administrative expenses in the Commercial Foods segment (see Note 13). The fair value measurement used to determine the impairment was based upon expected sales price.
	The carrying amount of long-term debt (including current installments) was $9.4 billion as of November 24, 2013 and May 26, 2013. Based on current market rates, the fair value of this debt (level 2 liabilities) at November 24, 2013 and May 26, 2013, was estimated at $9.8 billion and $10.2 billion, respectively.

BUSINESS_SEGMENTS_AND_RELATED_

BUSINESS SEGMENTS AND RELATED INFORMATION	6 Months Ended
	Nov. 24, 2013
Segment Reporting [Abstract]	'
BUSINESS SEGMENTS AND RELATED INFORMATION	'
	BUSINESS SEGMENTS AND RELATED INFORMATION
	As a result of the Ralcorp acquisition, we implemented organizational changes during the second quarter of fiscal 2014 that resulted in new reporting segments. We now report our operations in three reporting segments: Consumer Foods, Commercial Foods, and Private Brands. We believe that this new operating structure will enhance our focus on profitability, coordinated business execution, and resource allocation across our products. Prior periods have been reclassified to conform to the new segment presentation. Prior to this change in organizational structure, we had four operating and reportable segments.
	The Consumer Foods reporting segment includes branded food products, which are sold in various retail channels, principally in North America. The products include a variety of categories (meals, entrees, condiments, sides, snacks, and desserts) across frozen, refrigerated, and shelf-stable temperature classes. The Consumer Foods reporting segment no longer includes results for store brands (store brands are now part of the recently created Private Brands segment) or foodservice (the foodservice business is now part of the Commercial Foods segment). The Consumer Foods reporting segment now includes international sales which were previously part of the Ralcorp Food Group segment.
	The Commercial Foods reporting segment principally includes commercially branded and private brand foods and ingredients, which are sold primarily to foodservice, food manufacturing, and industrial customers. The segment's primary products include: specialty potato products, milled grain ingredients, and a variety of vegetable products, seasonings, blends, and flavors, which are sold under brands such as ConAgra Mills®, Lamb Weston®, and Spicetec Flavors & Seasonings®, as well as frozen bakery and ingredient products. The Commercial Foods reporting segment now includes foodservice results which were previously part of the Consumer Foods segment and frozen bakery foodservice results which were previously part of the Ralcorp Frozen Bakery Products segment.
	The Private Brands reporting segment principally includes private brand and customized food products that are sold in various retail channels, primarily in North America. The products include a variety of categories including: cereal products; snacks, sauces, and spreads; pasta; and frozen bakery products. The Private Brands reporting segment is newly created and includes a significant portion of the results of the former Ralcorp businesses and the store brands results which were previously part of the Consumer Foods segment.
	We do not aggregate operating segments when determining our reporting segments.
	Intersegment sales have been recorded at amounts approximating market. Operating profit for each of the segments is based on net sales less all identifiable operating expenses. General corporate expense, net interest expense, and income taxes have been excluded from segment operations.
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,			November 25,
		2013			2012			2013			2012
	Net sales
	Consumer Foods	$	2,016.10		$	2,023.50		$	3,665.50		$	3,690.30
	Commercial Foods	1,574.00			1,526.30			3,107.90			2,988.90
	Private Brands	1,123.80			177.4			2,138.00			350.3
	Total net sales	$	4,713.90		$	3,727.20		$	8,911.40		$	7,029.50
	Operating profit
	Consumer Foods	$	288.9		$	256.7		$	456		$	465.4
	Commercial Foods	169.2			194.7			330.3			355.7
	Private Brands	89.4			7			156.4			13.9
	Total operating profit	$	547.5		$	458.4		$	942.7		$	835
	Equity method investment earnings
	Consumer Foods	$	0.5		$	0.5		$	0.9		$	0.6
	Commercial Foods	4.8			12.3			8.5			19.8
	Total equity method investment earnings	$	5.3		$	12.8		$	9.4		$	20.4
	Operating profit plus equity method investment earnings
	Consumer Foods	$	289.4		$	257.2		$	456.9		$	466
	Commercial Foods	174			207			338.8			375.5
	Private Brands	89.4			$	7		156.4			13.9
	Total operating profit plus equity method investment earnings	$	552.8		$	471.2		$	952.1		$	855.4
	General corporate expense	$	105.5		$	90.6		$	229.2		$	49.1
	Interest expense, net	95.4			53.4			191			102.7
	Income tax expense	117.9			109.7			151.8			233.5
	Income from continuing operations	$	234		$	217.5		$	380.1		$	470.1
	Less: Net income attributable to noncontrolling interests	3.7			4.9			6.6			7
	Income from continuing operations attributable to ConAgra Foods, Inc.	$	230.3		$	212.6		$	373.5		$	463.1
	Presentation of Derivative Gains (Losses) for Economic Hedges of Forecasted Cash Flows in Segment Results
	Derivatives used to manage commodity price risk and foreign currency risk are not designated for hedge accounting treatment. We believe these derivatives provide economic hedges of certain forecasted transactions. As such, these derivatives (except those related to our milling operations, see Note 8) are recognized at fair market value with realized and unrealized gains and losses recognized in general corporate expenses. The gains and losses are subsequently recognized in the operating results of the reporting segments in the period in which the underlying transaction being economically hedged is included in earnings.
	The following table presents the net derivative gains (losses) from economic hedges of forecasted commodity consumption and the foreign currency risk of certain forecasted transactions, under this methodology:
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,			November 25,
		2013			2012			2013			2012
	Net derivative gains (losses) incurred	$	(11.1	)	$	(12.0	)	$	(28.6	)	$	108.2
	Less: Net derivative gains (losses) allocated to reporting segments	(2.0		)	4.1			1.2			(5.9		)
	Net derivative gains (losses) recognized in general corporate expenses	$	(9.1	)	$	(16.1	)	$	(29.8	)	$	114.1
	Net derivative gains (losses) allocated to Consumer Foods	$	(0.6	)	$	6.1		$	1.3		$	2.9
	Net derivative gains (losses) allocated to Commercial Foods	(0.8		)	(2.1		)	1.2			(8.2		)
	Net derivative gains (losses) allocated to Private Brands	(0.6		)	0.1			(1.3		)	(0.6		)
	Net derivative gains (losses) included in segment operating profit	$	(2.0	)	$	4.1		$	1.2		$	(5.9	)
	As of November 24, 2013, the cumulative amount of net derivative losses from economic hedges that had been recognized in Corporate and not yet allocated to reporting segments was $38.9 million. This amount reflected net losses of $29.8 million incurred during the twenty-six weeks ended November 24, 2013, as well as net losses of $9.1 million incurred prior to fiscal 2014. Based on our forecasts of the timing of recognition of the underlying hedged items, we expect to reclassify losses of $22.4 million and $16.5 million to segment operating results in fiscal 2014 and 2015 and thereafter, respectively.
	Other Information
	Our largest customer, Wal-Mart Stores, Inc. and its affiliates, accounted for 18% and 17% of consolidated net sales in the second quarter and first half of fiscal 2014, respectively, and 18% in both the second quarter and first half of 2013, primarily in the Consumer Foods and Private Brands segments.
	Wal-Mart Stores, Inc. and its affiliates accounted for approximately 15% of consolidated net receivables as of both November 24, 2013 and May 26, 2013, primarily in the Consumer Foods and Private Brands segments.

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
	Nov. 24, 2013
Accounting Policies [Abstract]	'
Basis of Consolidation	'
	Basis of Consolidation — The condensed consolidated financial statements include the accounts of ConAgra Foods, Inc. and all majority-owned subsidiaries. In addition, the accounts of all variable interest entities for which we have been determined to be the primary beneficiary are included in our condensed consolidated financial statements from the date such determination is made. All significant intercompany investments, accounts, and transactions have been eliminated.
Comprehensive Income	'
	Comprehensive Income — Comprehensive income includes net income, currency translation adjustments, certain derivative-related activity, changes in the value of available-for-sale investments, and changes in prior service cost and net actuarial gains (losses) from pension (for amounts not in excess of the 10% corridor) and postretirement health care plans. We generally deem our foreign investments to be essentially permanent in nature and we do not provide for taxes on currency translation adjustments arising from converting the investment denominated in a foreign currency to U.S. dollars. When we determine that a foreign investment, as well as undistributed earnings, are no longer permanent in nature, estimated taxes are provided for the related deferred tax liability (asset), if any, resulting from currency translation adjustments.
Reclassifications	'
	Reclassifications — Certain prior year amounts have been reclassified to conform with current year presentation.
Use of Estimates	'
	Use of Estimates — Preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions. These estimates and assumptions affect reported amounts of assets, liabilities, revenues, and expenses as reflected in the condensed consolidated financial statements. Actual results could differ from these estimates.

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	6 Months Ended
	Nov. 24, 2013
Accounting Policies [Abstract]	'
Income tax expense (benefit) on components of other comprehensive income	'
	The following details the income tax expense (benefit) on components of other comprehensive income (loss):
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,		November 25,
		2013			2012			2013		2012
	Net derivative adjustment	$	(3.6	)	$	(0.1	)	$	23.3	$	(1.7	)
	Unrealized gains on available-for-sale securities	0.1			—			0.2		—
	Pension and postretirement healthcare liabilities	0.7			0.1			0.7		0.6
		$	(2.8	)	$	—		$	24.2	$	(1.1	)
Reclassifications from accumulated other comprehensive loss into income	'
	The following table summarizes the reclassifications from accumulated other comprehensive loss into income for the thirteen weeks and twenty-six weeks ended November 24, 2013:
		Amount reclassified from Accumulated Other Comprehensive Loss						Affected Line Item in the Condensed Consolidated Statement of Earnings
		Thirteen weeks ended			Twenty-six weeks ended
	Net derivative adjustment
	Fair value hedges	$	0.1		$	0.2		Interest expense, net
	Cash flow hedges	(0.1		)	(0.1		)	Interest expense, net
		—			0.1			Total before tax
		—			—			Income tax benefit
		$	—		$	0.1		Net of tax
	Amortization of pension and other postretirement benefits:
	Net prior service cost	$	(0.9	)	$	(1.7	)	Selling, general and administrative expenses
	Net actuarial losses	1.7			3.3			Selling, general and administrative expenses
		0.8			1.6			Total before tax
		(0.3		)	(0.6		)	Income tax benefit
		$	0.5		$	1		Net of tax

ACQUISITIONS_Tables

ACQUISITIONS (Tables)	6 Months Ended
	Nov. 24, 2013
Business Combinations [Abstract]	'
Summary of the initial estimated fair values of the assets acquired and liabilities assumed at the ascquisition date	'
	The following table summarizes the preliminary estimated fair values of the Ralcorp assets acquired and liabilities assumed at the acquisition date. The fair values of the assets and liabilities related to Ralcorp are subject to refinement as we complete our analyses relative to the fair values at the date of acquisition. Changes that have occurred since initial allocation have not been retrospectively applied, as the impact on reported results would not have been material.
		January 29,
		2013
	Assets acquired:
	Cash and cash equivalents	$	320.7
	Other current assets	914.7
	Property, plant and equipment	982
	Goodwill	4,374.80
	Brands, trademarks and other intangibles	2,167.30
	Other assets	27.7
	Total assets acquired	$	8,787.20
	Liabilities assumed:
	Current liabilities	$	619.7
	Noncurrent liabilities	3,096.60
	Total liabilities assumed	$	3,716.30
	Net assets acquired	$	5,070.90
Pro Forma Results	'
	These pro forma results may not necessarily reflect the actual results of operations that would have been achieved, nor are they necessarily indicative of future results of operations.
		Thirteen weeks ended		Twenty-six weeks ended
		November 25,		November 25,
		2012		2012
	Pro forma net sales	$	4,834.60	$	9,225.70
	Pro forma net income from continuing operations	$	186.9	$	469.6
	Pro forma net income from continuing operations per share—basic	$	0.46	$	1.16
	Pro forma net income from continuing operations per share—diluted	$	0.45	$	1.14

DISCONTINUED_OPERATIONS_Tables

DISCONTINUED OPERATIONS (Tables)	6 Months Ended
	Nov. 24, 2013
Discontinued Operations and Disposal Groups [Abstract]	'
Schedule of disposal groups, including discontinued operations, income statement, balance sheet and additional disclosures	'
	The summary comparative financial results of discontinued operations were as follows:
		Thirteen weeks ended						Twenty-six weeks ended
		November 24, 2013			25-Nov-12			24-Nov-13		25-Nov-12
	Net sales	$	2		$	8.2		$	11.2	$	17.8
	Income (loss) from operations of discontinued operations before income taxes	32.7			(1.6		)	34.4		(2.3		)
	Income tax expense (benefit)	14.3			(0.6		)	14.9		(0.9		)
	Income (loss) from discontinued operations, net of tax	$	18.4		$	(1.0	)	$	19.5	$	(1.4	)
Assets and liabilities classified as held for sale	'
	The assets classified as held for sale reflected in our condensed consolidated balance sheets were as follows:
			May 26, 2013
	Inventories		$	3.8
	Current assets held for sale		$	3.8
	Property, plant and equipment, net		$	8.8
	Goodwill		6.6
	Brands, trademarks and other intangibles, net		4
	Noncurrent assets held for sale		$	19.4

RESTRUCTURING_Tables

RESTRUCTURING (Tables)	6 Months Ended
	Nov. 24, 2013
Restructuring and Related Activities [Abstract]	'
Summary of expected realization and incurred restructuring pre-tax expenses	'
	We anticipate that we will recognize the following pre-tax expenses associated with the Initial Phase of the SCAE Plan (amounts include charges recognized in fiscal year 2013 and the first two quarters of fiscal year 2014):
		Consumer Foods			Corporate		Private Brands			Total
	Multi-employer pension costs	$	—		$	11.2	$	—		$	11.2
	Other cost of goods sold	3.1			—		4.9			8
	Total cost of goods sold	$	3.1		$	11.2	$	4.9		$	19.2
	Severance and related costs	$	3.5		$	30.5	$	13.8		$	47.8
	Property relocation	15.8			—		29.3			45.1
	Fixed asset impairment / Loss on disposal	—			—		39.3			39.3
	Gain on sale of asset	—			—		(0.9		)	(0.9		)
	Other selling, general and administrative expenses	11.1			2.1		36.3			49.5
	Total selling, general and administrative expenses	$	30.4		$	32.6	$	117.8		$	180.8
	Consolidated total	$	33.5		$	43.8	$	122.7		$	200
	During the second quarter of fiscal 2014, we recognized the following pre-tax expenses for the SCAE Plan:
		Consumer Foods			Corporate		Private Brands			Total
	Cost of goods sold	$	(0.1	)	$	—	$	—		$	(0.1	)
	Severance and related costs	$	0.6		$	6.3	$	—		$	6.9
	Consulting	—			0.3		0.2			0.5
	Total selling, general and administrative expenses	$	0.6		$	6.6	$	0.2		$	7.4
	Consolidated total	$	0.5		$	6.6	$	0.2		$	7.3
	During the first half of fiscal 2014, we recognized the following pre-tax expenses for the SCAE Plan:
		Consumer Foods			Corporate		Private Brands			Total
	Cost of goods sold	$	0.2		$	—	$	—		$	0.2
	Severance and related costs	$	0.6		$	13.3	$	—		$	13.9
	Consulting	—			0.3		0.2			0.5
	Total selling, general and administrative expenses	$	0.6		$	13.6	$	0.2		$	14.4
	Consolidated total	$	0.8		$	13.6	$	0.2		$	14.6
	We anticipate that we will recognize the following pre-tax expenses associated with the Initial Phase of the SCAE Plan (amounts include charges recognized in fiscal year 2013 and the first two quarters of fiscal year 2014):
		Consumer Foods			Corporate		Private Brands			Total
	Multi-employer pension costs	$	—		$	11.2	$	—		$	11.2
	Other cost of goods sold	3.1			—		4.9			8
	Total cost of goods sold	$	3.1		$	11.2	$	4.9		$	19.2
	Severance and related costs	$	3.5		$	30.5	$	13.8		$	47.8
	Property relocation	15.8			—		29.3			45.1
	Fixed asset impairment / Loss on disposal	—			—		39.3			39.3
	Gain on sale of asset	—			—		(0.9		)	(0.9		)
	Other selling, general and administrative expenses	11.1			2.1		36.3			49.5
	Total selling, general and administrative expenses	$	30.4		$	32.6	$	117.8		$	180.8
	Consolidated total	$	33.5		$	43.8	$	122.7		$	200
	During the second quarter of fiscal 2014, we recognized the following pre-tax expenses for the SCAE Plan:
		Consumer Foods			Corporate		Private Brands			Total
	Cost of goods sold	$	(0.1	)	$	—	$	—		$	(0.1	)
	Severance and related costs	$	0.6		$	6.3	$	—		$	6.9
	Consulting	—			0.3		0.2			0.5
	Total selling, general and administrative expenses	$	0.6		$	6.6	$	0.2		$	7.4
	Consolidated total	$	0.5		$	6.6	$	0.2		$	7.3
	During the first half of fiscal 2014, we recognized the following pre-tax expenses for the SCAE Plan:
		Consumer Foods			Corporate		Private Brands			Total
	Cost of goods sold	$	0.2		$	—	$	—		$	0.2
	Severance and related costs	$	0.6		$	13.3	$	—		$	13.9
	Consulting	—			0.3		0.2			0.5
	Total selling, general and administrative expenses	$	0.6		$	13.6	$	0.2		$	14.4
	Consolidated total	$	0.8		$	13.6	$	0.2		$	14.6
	All of these charges have resulted or will result in cash outflows.
	We recognized the following cumulative (plan inception to November 24, 2013) pre-tax expenses related to the SCAE Plan in our condensed consolidated statement of earnings:
		Consumer Foods			Corporate		Private Brands			Total
	Multi-employer pension costs	$	—		$	11.2	$	—		$	11.2
	Other cost of goods sold	0.2			—		—			0.2
	Total cost of goods sold	$	0.2		$	11.2	$	—		$	11.4
	Severance and related costs	$	0.6		$	30.5	$	—		$	31.1
	Consulting	—			0.3		0.2			0.5
	Total selling, general and administrative expenses	$	0.6		$	30.8	$	0.2		$	31.6
	Consolidated total	$	0.8		$	42	$	0.2		$	43
Liabilities recorded for the restructuring and changes therein	'
	Liabilities recorded for the SCAE Plan and changes therein for the first half of fiscal 2014 were as follows:
		Balance at May 26,			Costs Incurred		Costs Paid			Balance at November 24,
		2013			and Charged		or  Otherwise Settled			2013
					to Expense
	Severance	$	17.2		$	13.9	$	(11.2	)	$	19.9
	Multi-employer pension and related costs	11.2			0.7		(0.3		)	11.6
	Total	$	28.4		$	14.6	$	(11.5	)	$	31.5

LONGTERM_DEBT_Tables

LONG-TERM DEBT (Tables)	6 Months Ended
	Nov. 24, 2013
Debt Disclosure [Abstract]	'
Net Interest Expense	'
	Net interest expense consists of:
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,			November 25,
		2013			2012			2013			2012
	Long-term debt	$	99.4		$	55.3		$	199.1		$	106.9
	Short-term debt	0.5			0.1			0.8			0.3
	Interest income	(0.7		)	(0.7		)	(1.3		)	(1.5		)
	Interest capitalized	(3.8		)	(1.3		)	(7.6		)	(3.0		)
		$	95.4		$	53.4		$	191		$	102.7

VARIABLE_INTEREST_ENTITIES_Tab

VARIABLE INTEREST ENTITIES (Tables)	6 Months Ended
	Nov. 24, 2013
Variable Interest Entity, Measure of Activity [Abstract]	'
Variable Interest Entities Reflected on Condensed Consolidated Balance Sheets	'
	Due to the consolidation of this variable interest entity, we reflected in our condensed consolidated balance sheets:
		November 24,		May 26,
		2013		2013
	Cash and cash equivalents	$	10.5	$	8.9
	Receivables, less allowance for doubtful accounts	24.4		16.4
	Inventories	1.4		1.4
	Prepaid expenses and other current assets	0.1		0.4
	Property, plant and equipment, net	53.5		54.8
	Goodwill	18.8		18.8
	Brands, trademarks and other intangibles, net	7.1		7.5
	Total assets	$	115.8	$	108.2
	Accounts payable	$	9.6	$	8.9
	Accrued payroll	0.6		0.6
	Other accrued liabilities	0.7		0.7
	Other noncurrent liabilities (minority interest)	34.1		30.7
	Total liabilities	$	45	$	40.9

GOODWILL_AND_OTHER_IDENTIFIABL1

GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Tables)	6 Months Ended
	Nov. 24, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Change in Carrying Amount of Goodwill	'
	The change in the carrying amount of goodwill for the first half of fiscal 2014 was as follows:
		Consumer			Commercial		Private Brands		Total
		Foods			Foods
	Balance as of May 26, 2013	$	3,760.50		$	857.4	$	3,826.20	$	8,444.10
	Currency translation and purchase accounting adjustments	(16.2		)	0.5		27.5		11.8
	Balance as of November 24, 2013	$	3,744.30		$	857.9	$	3,853.70	$	8,455.90
Other Identifiable Intangible Assets	'
	Other identifiable intangible assets were as follows:
		November 24, 2013					May 26, 2013
		Gross			Accumulated		Gross		Accumulated
		Carrying			Amortization		Carrying		Amortization
		Amount					Amount
	Non-amortizing intangible assets	$	1,134.60		$	—	$	1,139.70	$	—
	Amortizing intangible assets	2,399.80			178.5		2,400.40		122
		$	3,534.40		$	178.5	$	3,540.10	$	122

DERIVATIVE_FINANCIAL_INSTRUMEN1

DERIVATIVE FINANCIAL INSTRUMENTS (Tables)	6 Months Ended
	Nov. 24, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Assets and Liabilities and Amounts Representing Right to Reclaim Cash Collateral Were Reflected in Balance Sheets	'
	Derivative assets and liabilities and amounts representing a right to reclaim cash collateral or obligation to return cash collateral were reflected in our condensed consolidated balance sheets as follows:
		November 24,				May 26,
		2013				2013
	Prepaid expenses and other current assets	$	57.1			$	78.6
	Other accrued liabilities	84.7				137.9
Schedule of Derivative Instruments in Statement of Financial Position, Gross, Fair Value	'
	The following table presents our derivative assets and liabilities, at November 24, 2013, on a gross basis, prior to the offsetting of $15.6 million to total derivative assets and $20.2 million to total derivative liabilities where legal right of setoff existed:
		Derivative Assets						Derivative Liabilities
		Balance Sheet		Fair Value				Balance Sheet		Fair Value
		Location						Location
	Interest rate contracts	Prepaid expenses and other current assets		$	4.6			Other accrued liabilities		$	46.4
	Total derivatives designated as hedging instruments			$	4.6					$	46.4
	Commodity contracts	Prepaid expenses and other current assets		$	48.8			Other accrued liabilities		$	55
	Foreign exchange contracts	Prepaid expenses and other current assets		18.3				Other accrued liabilities		3.5
	Other	Prepaid expenses and other current assets		1				Other accrued liabilities		—
	Total derivatives not designated as hedging instruments			$	68.1					$	58.5
	Total derivatives			$	72.7					$	104.9
	The following table presents our derivative assets and liabilities at May 26, 2013, on a gross basis, prior to the setoff of $12.5 million to total derivative assets and $22.7 million to total derivative liabilities where legal right of setoff existed:
		Derivative Assets						Derivative Liabilities
		Balance Sheet		Fair Value				Balance Sheet		Fair Value
		Location						Location
	Interest rate contracts	Prepaid expenses and other current assets		$	—			Other accrued liabilities		$	104.5
	Total derivatives designated as hedging instruments			$	—					$	104.5
	Commodity contracts	Prepaid expenses and other current assets		$	70.7			Other accrued liabilities		$	53.7
	Foreign exchange contracts	Prepaid expenses and other current assets		18.4				Other accrued liabilities		2.4
	Other	Prepaid expenses and other current assets		2				Other accrued liabilities		—
	Total derivatives not designated as hedging instruments			$	91.1					$	56.1
	Total derivatives			$	91.1					$	160.6
Location and Amount of Gains (Losses) from Derivatives Not Designated as Hedging Instruments in Condensed Consolidated Statements of Earnings	'
	The location and amount of gains (losses) from derivatives not designated as hedging instruments in our condensed consolidated statements of earnings were as follows:
	Derivatives Not Designated as Hedging Instruments		Location in Condensed Consolidated Statement of Earnings of		Amount of Gain (Loss)
			Gain (Loss) Recognized on Derivatives		Recognized on Derivatives
					in Condensed Consolidated
					Statement of Earnings for
					the Thirteen Weeks Ended
					November 24, 2013				November 25, 2012
	Commodity contracts		Net sales		$	(1.0	)		$	—
	Commodity contracts		Cost of goods sold		2.7				7.1
	Foreign exchange contracts		Cost of goods sold		2.1				5.4
	Commodity contracts		Selling, general and administrative expense		—				(0.1		)
	Foreign exchange contracts		Selling, general and administrative expense		0.6				(0.5		)
	Total gain from derivative instruments not designated as hedging instruments				$	4.4			$	11.9
	Derivatives Not Designated as Hedging Instruments		Location in Condensed Consolidated Statement of Earnings of		Amount of Gain (Loss)
			Gain (Loss) Recognized on Derivatives		Recognized on Derivatives
					in Condensed Consolidated
					Statement of Earnings for
					the Twenty-six Weeks Ended
					November 24, 2013				November 25, 2012
	Commodity contracts		Net sales		$	(2.0	)		$	(0.7	)
	Commodity contracts		Cost of goods sold		17.4				126.3
	Foreign exchange contracts		Cost of goods sold		0.9				1.3
	Commodity contracts		Selling, general and administrative expense		—				0.1
	Foreign exchange contracts		Selling, general and administrative expense		1.2				(6.5		)
	Total gain from derivative instruments not designated as hedging instruments				$	17.5			$	120.5

SHAREBASED_PAYMENTS_Tables

SHARE-BASED PAYMENTS (Tables)	6 Months Ended
	Nov. 24, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Weighted Average Black-Scholes Assumptions for Stock Options Granted	'
	The weighted average Black-Scholes assumptions for stock options granted during the first half of fiscal 2014 were as follows:
	Expected volatility (%)	21.13
	Dividend yield (%)	3.24
	Risk-free interest rate (%)	1.37
	Expected life of stock option (years)	4.91

EARNINGS_PER_SHARE_Tables

EARNINGS PER SHARE (Tables)	6 Months Ended
	Nov. 24, 2013
Earnings Per Share [Abstract]	'
Schedule of Reconciliation of Income and Average Share Amounts to Compute Basic and Diluted Earnings Per Share	'
	The following table reconciles the income and average share amounts used to compute both basic and diluted earnings per share:
		Thirteen weeks ended					Twenty-six weeks ended
		November 24,		November 25,			November 24,		November 25,
		2013		2012			2013		2012
	Net income available to ConAgra Foods, Inc. common stockholders:
	Income from continuing operations attributable to ConAgra Foods, Inc. common stockholders	$	230.3	$	212.6		$	373.5	$	463.1
	Income (loss) from discontinued operations, net of tax, attributable to ConAgra Foods, Inc. common stockholders	18.4		(1.0		)	19.5		(1.4		)
	Net income attributable to ConAgra Foods, Inc. common stockholders	$	248.7	$	211.6		$	393	$	461.7
	Less: Increase in redemption value of noncontrolling interests in excess of earnings allocated	0.4		0.4			0.8		0.8
	Net income available to ConAgra Foods, Inc. common stockholders	$	248.3	$	211.2		$	392.2	$	460.9
	Weighted average shares outstanding:
	Basic weighted average shares outstanding	421.1		405.9			421		406.5
	Add: Dilutive effect of stock options, restricted stock unit awards, and other dilutive securities	5.9		5.8			6.5		5.3
	Diluted weighted average shares outstanding	427		411.7			427.5		411.8

INVENTORIES_Tables

INVENTORIES (Tables)	6 Months Ended
	Nov. 24, 2013
Disclosure Inventories Major Classes Of Inventories [Abstract]	'
Major Classes of Inventories	'
	The major classes of inventories were as follows:
		November 24,		May 26,
		2013		2013
	Raw materials and packaging	$	873.5	$	733.2
	Work in process	183.9		118
	Finished goods	1,577.80		1,398.90
	Supplies and other	140.9		140.2
	Total	$	2,776.10	$	2,390.30

PENSION_AND_POSTRETIREMENT_BEN1

PENSION AND POSTRETIREMENT BENEFITS (Tables)	6 Months Ended
	Nov. 24, 2013
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]	'
Components of Pension Benefit and Other Postretirement Benefit Costs	'
	Components of pension benefit and other postretirement benefit costs included:
		Pension Benefits
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,			November 25,
		2013			2012			2013			2012
	Service cost	$	22.2		$	20.1		$	44.5		$	40.3
	Interest cost	37.8			36.6			75.6			73.2
	Expected return on plan assets	(63.2		)	(52.2		)	(126.4		)	(104.5		)
	Amortization of prior service cost	0.9			0.8			1.8			1.6
	Curtailment loss	—			—			—			0.8
	Benefit cost — Company plans	(2.3		)	5.3			(4.5		)	11.4
	Pension benefit cost — multi-employer plans	3.6			2.2			6.7			4.3
	Total benefit cost	$	1.3		$	7.5		$	2.2		$	15.7
		Postretirement Benefits
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,			November 25,
		2013			2012			2013			2012
	Service cost	$	0.2		$	0.1		$	0.4		$	0.2
	Interest cost	2.4			2.5			4.8			5
	Amortization of prior service cost	(1.8		)	(2.1		)	(3.6		)	(4.2		)
	Recognized net actuarial loss	1.7			1.5			3.4			3
	Total cost	$	2.5		$	2		$	5		$	4

STOCKHOLDERS_EQUITY_Tables

STOCKHOLDERS' EQUITY (Tables)	6 Months Ended
	Nov. 24, 2013
Stockholders' Equity Note [Abstract]	'
Reconciliation of Stockholders Equity	'
	The following table presents a reconciliation of our stockholders' equity accounts for the twenty-six weeks ended November 24, 2013:
		ConAgra Foods, Inc. Stockholders' Equity
		Common	Common		Additional			Retained			Accumulated			Treasury			Noncontrolling			Total
		Shares	Stock		Paid-in			Earnings			Other			Stock			Interests			Equity
					Capital						Comprehensive
											Income (Loss)
	Balance at May 26, 2013	567.9	$	2,839.70	$	1,006.20		$	5,129.50		$	(196.1	)	$	(3,514.9	)	$	98.6		$	5,363.00
	Stock option and incentive plans				12.1			(0.5		)				84.7						96.3
	Currency translation adjustment										(11.1		)				(9.9		)	(21.0		)
	Issuance of treasury shares																			—
	Repurchase of common shares													(100.0		)				(100.0		)
	Unrealized gain on securities										0.4									0.4
	Derivative adjustment, net of reclassification adjustment										39.4									39.4
	Activities of noncontrolling interests				(0.8		)										0.8			—
	Pension and postretirement healthcare benefits										1.2									1.2
	Dividends declared on common stock; $0.50 per share							(210.6		)										(210.6		)
	Net income attributable to ConAgra Foods, Inc.							393												393
	Balance at November 24, 2013	567.9	$	2,839.70	$	1,017.50		$	5,311.40		$	(166.2	)	$	(3,530.2	)	$	89.5		$	5,561.70

FAIR_VALUE_MEASUREMENTS_Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Nov. 24, 2013
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]	'
Fair Value of Assets and Liabilities Measured on Recurring Basis	'
	The following table presents our financial assets and liabilities measured at fair value on a recurring basis based upon the level within the fair value hierarchy in which the fair value measurements fall, as of November 24, 2013:
		Level 1		Level 2		Level 3		Net Value
	Assets:
	Derivative assets	$	5.2	$	51.9	$	—	$	57.1
	Available-for-sale securities	2.5		—		—		2.5
	Deferred compensation assets	6.8		—		—		6.8
	Total assets	$	14.5	$	51.9	$	—	$	66.4
	Liabilities:
	Derivative liabilities	$	—	$	84.7	$	—	$	84.7
	Deferred compensation liabilities	41.3		—		—		41.3
	Total liabilities	$	41.3	$	84.7	$	—	$	126
	The following table presents our financial assets and liabilities measured at fair value on a recurring basis based upon the level within the fair value hierarchy in which the fair value measurements fall, as of May 26, 2013:
		Level 1		Level 2		Level 3		Net Value
	Assets:
	Derivative assets	$	13.9	$	64.7	$	—	$	78.6
	Available-for-sale securities	6.1		—		—		6.1
	Deferred compensation assets	6.9		—		—		6.9
	Total assets	$	26.9	$	64.7	$	—	$	91.6
	Liabilities:
	Derivative liabilities	$	—	$	137.9	$	—	$	137.9
	Deferred compensation liabilities	35.9		—		—		35.9
	Total liabilities	$	35.9	$	137.9	$	—	$	173.8

BUSINESS_SEGMENTS_AND_RELATED_1

BUSINESS SEGMENTS AND RELATED INFORMATION (Tables)	6 Months Ended
	Nov. 24, 2013
Segment Reporting [Abstract]	'
Segment Operations	'
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,			November 25,
		2013			2012			2013			2012
	Net sales
	Consumer Foods	$	2,016.10		$	2,023.50		$	3,665.50		$	3,690.30
	Commercial Foods	1,574.00			1,526.30			3,107.90			2,988.90
	Private Brands	1,123.80			177.4			2,138.00			350.3
	Total net sales	$	4,713.90		$	3,727.20		$	8,911.40		$	7,029.50
	Operating profit
	Consumer Foods	$	288.9		$	256.7		$	456		$	465.4
	Commercial Foods	169.2			194.7			330.3			355.7
	Private Brands	89.4			7			156.4			13.9
	Total operating profit	$	547.5		$	458.4		$	942.7		$	835
	Equity method investment earnings
	Consumer Foods	$	0.5		$	0.5		$	0.9		$	0.6
	Commercial Foods	4.8			12.3			8.5			19.8
	Total equity method investment earnings	$	5.3		$	12.8		$	9.4		$	20.4
	Operating profit plus equity method investment earnings
	Consumer Foods	$	289.4		$	257.2		$	456.9		$	466
	Commercial Foods	174			207			338.8			375.5
	Private Brands	89.4			$	7		156.4			13.9
	Total operating profit plus equity method investment earnings	$	552.8		$	471.2		$	952.1		$	855.4
	General corporate expense	$	105.5		$	90.6		$	229.2		$	49.1
	Interest expense, net	95.4			53.4			191			102.7
	Income tax expense	117.9			109.7			151.8			233.5
	Income from continuing operations	$	234		$	217.5		$	380.1		$	470.1
	Less: Net income attributable to noncontrolling interests	3.7			4.9			6.6			7
	Income from continuing operations attributable to ConAgra Foods, Inc.	$	230.3		$	212.6		$	373.5		$	463.1
Allocation of Net Derivative Gains (Losses) from Economic Hedges of Forecasted Commodity Consumption and Foreign Currency Risk	'
	The following table presents the net derivative gains (losses) from economic hedges of forecasted commodity consumption and the foreign currency risk of certain forecasted transactions, under this methodology:
		Thirteen weeks ended						Twenty-six weeks ended
		November 24,			November 25,			November 24,			November 25,
		2013			2012			2013			2012
	Net derivative gains (losses) incurred	$	(11.1	)	$	(12.0	)	$	(28.6	)	$	108.2
	Less: Net derivative gains (losses) allocated to reporting segments	(2.0		)	4.1			1.2			(5.9		)
	Net derivative gains (losses) recognized in general corporate expenses	$	(9.1	)	$	(16.1	)	$	(29.8	)	$	114.1
	Net derivative gains (losses) allocated to Consumer Foods	$	(0.6	)	$	6.1		$	1.3		$	2.9
	Net derivative gains (losses) allocated to Commercial Foods	(0.8		)	(2.1		)	1.2			(8.2		)
	Net derivative gains (losses) allocated to Private Brands	(0.6		)	0.1			(1.3		)	(0.6		)
	Net derivative gains (losses) included in segment operating profit	$	(2.0	)	$	4.1		$	1.2		$	(5.9	)

SUMMARY_OF_SIGNIFICANT_ACCOUNT3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Income Tax Expense (Benefit)) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Accounting Policies [Abstract]	'	'	'	'
Net derivative adjustment	($3.60)	($0.10)	$23.30	($1.70)
Unrealized gains on available-for-sale securities	0.1	0	0.2	0
Pension and postretirement healthcare liabilities	0.7	0.1	0.7	0.6
Other comprehensive income tax, total	($2.80)	$0	$24.20	($1.10)

SUMMARY_OF_SIGNIFICANT_ACCOUNT4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Reclassifications from AOCI) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]	'	'	'	'
Interest expense, net	$95.40	$53.40	$191	$102.70
Total before tax	234	217.5	380.1	470.1
Income tax benefit	117.9	109.7	151.8	233.5
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Adjustment, Fair Value Hedges [Member]	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]	'	'	'	'
Interest expense, net	0.1	'	0.2	'
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]	'	'	'	'
Interest expense, net	-0.1	'	-0.1	'
Total before tax	0	'	0.1	'
Income tax benefit	0	'	'	'
Net of tax	0	'	0.1	'
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Defined Benefit Plans Adjustment	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]	'	'	'	'
Net prior service cost	-0.9	'	-1.7	'
Net actuarial losses	1.7	'	3.3	'
Total before tax	0.8	'	1.6	'
Income tax benefit	-0.3	'	-0.6	'
Net of tax	$0.50	'	$1	'

ACQUISITIONS_Assets_Acquired_D

ACQUISITIONS (Assets Acquired) (Details) (USD $)	Nov. 24, 2013	26-May-13	Nov. 24, 2013	Jan. 29, 2013
In Millions, unless otherwise specified			Ralcorp	Ralcorp
Business Acquisition [Line Items]	'	'	'	'
Cash and cash equivalents	'	'	'	$320.70
Other current assets	'	'	'	914.7
Property, plant and equipment	'	'	'	982
Goodwill	8,455.90	8,444.10	4,370	4,374.80
Brands, trademarks and other intangibles	'	'	2,170	2,167.30
Other assets	'	'	'	27.7
Total assets acquired	'	'	'	8,787.20
Current liabilities	'	'	'	619.7
Noncurrent liabilities	'	'	'	3,096.60
Total liabilities assumed	'	'	'	3,716.30
Net assets acquired	'	'	'	$5,070.90

ACQUISITIONS_Pro_Forma_Results

ACQUISITIONS (Pro Forma Results) (Details) (USD $)	3 Months Ended	6 Months Ended
In Millions, except Per Share data, unless otherwise specified	Nov. 25, 2012	Nov. 25, 2012
Business Combinations [Abstract]	'	'
Pro forma net sales	$4,834.60	$9,225.70
Pro forma net income from continuing operations	$186.90	$469.60
Pro forma net income from continuing operations per sharebbasic	$0.46	$1.16
Pro forma net income from continuing operations per sharebdiluted	$0.45	$1.14

ACQUISITIONS_Narrative_Details

ACQUISITIONS (Narrative) (Details) (USD $)

3 Months Ended

6 Months Ended

0 Months Ended

1 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

Nov. 24, 2013

Nov. 25, 2012

Nov. 24, 2013

Nov. 25, 2012

26-May-13

Sep. 05, 2013

Jan. 29, 2013

Nov. 24, 2013

Aug. 31, 2012

Jan. 29, 2013

Nov. 24, 2013

Nov. 25, 2012

Nov. 24, 2013

Nov. 25, 2012

26-May-13

Nov. 24, 2013

Nov. 24, 2013

Nov. 25, 2012

Nov. 24, 2013

Nov. 25, 2012

26-May-13

Nov. 24, 2013

Nov. 24, 2013

Nov. 25, 2012

Nov. 24, 2013

Nov. 25, 2012

26-May-13

Nov. 24, 2013

Harlan Bakeries

Ralcorp

Ralcorp

P F Changs And Bertolli Brands Frozen Meal Business

Term Facility Agreement

Consumer Foods

Consumer Foods

Consumer Foods

Consumer Foods

Consumer Foods

Consumer Foods

Private Brands

Private Brands

Private Brands

Private Brands

Private Brands

Private Brands

Commercial Foods

Commercial Foods

Commercial Foods

Commercial Foods

Commercial Foods

Commercial Foods

Unsecured Debt

Ralcorp

Ralcorp

Ralcorp

Ralcorp

Business Acquisitions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consideration paid for the merger

'

'

$39,600,000

$268,600,000

'

'

$4,750,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase price allocated to goodwill

8,455,900,000

'

8,455,900,000

'

8,444,100,000

'

4,374,800,000

4,370,000,000

100,100,000

'

3,744,300,000

'

3,744,300,000

'

3,760,500,000

512,000,000

3,853,700,000

'

3,853,700,000

'

3,826,200,000

3,530,000,000

857,900,000

'

857,900,000

'

857,400,000

334,600,000

Brands, trademarks and other intangibles

'

'

'

'

'

'

2,167,300,000

2,170,000,000

91,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase price allocated to brands, trademarks and other intangibles

'

'

'

'

'

'

'

2,030,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payments to acquire business, gross

'

'

'

'

'

39,600,000

'

'

266,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Intangibles

'

'

'

'

'

'

'

134,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deductible for tax purposes

'

'

'

'

'

'

'

397,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Operating profit

547,500,000

458,400,000

942,700,000

835,000,000

'

'

'

'

'

'

288,900,000

256,700,000

456,000,000

465,400,000

'

'

89,400,000

7,000,000

156,400,000

13,900,000

'

'

169,200,000

194,700,000

330,300,000

355,700,000

'

'

Debt Instrument, Face Amount

'

'

'

'

'

'

'

'

'

$1,500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

DISCONTINUED_OPERATIONS_Detail

DISCONTINUED OPERATIONS (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Discontinued Operations and Disposal Groups [Abstract]	'	'	'	'
Net sales	$2	$8.20	$11.20	$17.80
Income (loss) from operations of discontinued operations before income taxes	32.7	-1.6	34.4	-2.3
Income tax expense (benefit)	14.3	-0.6	14.9	-0.9
Income (loss) from discontinued operations, net of tax	$18.40	($1)	$19.50	($1.40)

DISCONTINUED_OPERATIONS_Assets

DISCONTINUED OPERATIONS Assets and Liabilities Classified as Held for Sale (Details) (USD $)	Nov. 24, 2013	26-May-13
In Millions, unless otherwise specified
Discontinued Operations and Disposal Groups [Abstract]	'	'
Inventories	'	$3.80
Current assets held for sale	0	3.8
Property, plant and equipment, net	'	8.8
Goodwill	'	6.6
Brands, trademarks and other intangibles, net	'	4
Noncurrent assets held for sale	$0	$19.40

DISCONTINUED_OPERATIONS_Narrat

DISCONTINUED OPERATIONS (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended			3 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012	Oct. 01, 2013	Nov. 24, 2013
					Lightlife	Scenario, Forecast
						Lightlife
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'	'	'	'	'
Sale of assets in cash	'	'	'	'	$54.70	'
Income (loss) from operations of discontinued operations before income taxes	32.7	-1.6	34.4	-2.3	'	32.1
Income (loss) from discontinued operations, net of tax	$18.40	($1)	$19.50	($1.40)	'	$19.80

RESTRUCTURING_Narrative_Detail

RESTRUCTURING (Narrative) (Details) (USD $)

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

12 Months Ended

3 Months Ended

6 Months Ended

12 Months Ended

3 Months Ended

6 Months Ended

10 Months Ended

In Millions, unless otherwise specified

Nov. 24, 2013

Nov. 24, 2013

Nov. 24, 2013

Nov. 25, 2012

Nov. 25, 2012

26-May-13

26-May-13

26-May-13

26-May-13

Nov. 25, 2012

Nov. 25, 2012

26-May-13

26-May-13

26-May-13

26-May-13

Nov. 24, 2013

Nov. 24, 2013

Nov. 25, 2012

Nov. 24, 2013

Nov. 25, 2012

Nov. 24, 2013

Nov. 24, 2013

SCAE Plan [Member]

Ralcorp Pre-acquisition Restructuring

Ralcorp Pre-acquisition Restructuring

Network Optimization Plan

Network Optimization Plan

Network Optimization Plan

Network Optimization Plan

Network Optimization Plan

Network Optimization Plan

Administrative Efficiency Restructuring Plan

Administrative Efficiency Restructuring Plan

Administrative Efficiency Restructuring Plan

Administrative Efficiency Restructuring Plan

Administrative Efficiency Restructuring Plan

Administrative Efficiency Restructuring Plan

Acquisition Related Restructuring

Acquisition Related Restructuring

Acquisition Related Restructuring

Acquisition Related Restructuring

Acquisition Related Restructuring

Acquisition Related Restructuring

Acquisition Related Restructuring

Consumer Foods

Commercial Foods

Corporate

Consumer Foods

Commercial Foods

Corporate

Consumer Foods

Consumer Foods

Consumer Foods

Consumer Foods

Consumer Foods

Corporate

Restructuring Cost and Reserve [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restructured and related cost incurred to date

'

$3.90

'

'

'

$76.70

$59.90

$16

$0.80

'

'

$18.70

$13.80

$1

$3.90

$17.30

'

'

'

'

$14.80

$2.50

Restructuring and Related Cost, Incurred Cost

'

1.3

2.6

0.7

4.5

'

'

'

'

0.9

1.5

'

'

'

'

'

2.4

2.2

3.3

4

'

'

Restructuring and Related Cost, Expected Cost

200

4.2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restructuring And Related Cost Expected Cash Outflows

155

2.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restructuring And Related Cost Expected Noncash Charges

$45

$1.70

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

RESTRUCTURING_Consolidated_Amo

RESTRUCTURING (Consolidated Amounts) (Details) (SCAE Plan [Member], USD $)	3 Months Ended	6 Months Ended	10 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 24, 2013	Nov. 24, 2013
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	$7.30	$14.60	$43
Restructuring and Related Cost, Expected Cost	'	'	200
Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	6.6	13.6	42
Restructuring and Related Cost, Expected Cost	'	'	43.8
Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0.2	0.2	0.2
Restructuring and Related Cost, Expected Cost	'	'	122.7
Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0.5	0.8	0.8
Restructuring and Related Cost, Expected Cost	'	'	33.5
Multi-employer Pension Cost [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	11.2
Restructuring and Related Cost, Expected Cost	'	'	11.2
Multi-employer Pension Cost [Member] | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	11.2
Restructuring and Related Cost, Expected Cost	'	'	11.2
Multi-employer Pension Cost [Member] | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	0
Restructuring and Related Cost, Expected Cost	'	'	0
Multi-employer Pension Cost [Member] | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	0
Restructuring and Related Cost, Expected Cost	'	'	0
Other Cost of Goods Sold [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	0.2
Restructuring and Related Cost, Expected Cost	'	'	8
Other Cost of Goods Sold [Member] | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	0
Restructuring and Related Cost, Expected Cost	'	'	0
Other Cost of Goods Sold [Member] | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	0
Restructuring and Related Cost, Expected Cost	'	'	4.9
Other Cost of Goods Sold [Member] | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	0.2
Restructuring and Related Cost, Expected Cost	'	'	3.1
Cost of Goods, Total [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	11.4
Restructuring and Related Cost, Expected Cost	'	'	19.2
Cost of Goods, Total [Member] | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	11.2
Restructuring and Related Cost, Expected Cost	'	'	11.2
Cost of Goods, Total [Member] | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	0
Restructuring and Related Cost, Expected Cost	'	'	4.9
Cost of Goods, Total [Member] | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	'	'	0.2
Restructuring and Related Cost, Expected Cost	'	'	3.1
Severance and Related Costs [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	6.9	13.9	31.1
Restructuring and Related Cost, Expected Cost	'	'	47.8
Severance and Related Costs [Member] | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	6.3	13.3	30.5
Restructuring and Related Cost, Expected Cost	'	'	30.5
Severance and Related Costs [Member] | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0	0	0
Restructuring and Related Cost, Expected Cost	'	'	13.8
Severance and Related Costs [Member] | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0.6	0.6	0.6
Restructuring and Related Cost, Expected Cost	'	'	3.5
Property Relocation [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	45.1
Property Relocation [Member] | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	0
Property Relocation [Member] | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	29.3
Property Relocation [Member] | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	15.8
Consulting [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0.5	0.5	0.5
Consulting [Member] | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0.3	0.3	0.3
Consulting [Member] | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0.2	0.2	0.2
Consulting [Member] | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0	0	0
Selling, General and Administrative Expenses	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	7.4	14.4	31.6
Restructuring and Related Cost, Expected Cost	'	'	180.8
Selling, General and Administrative Expenses | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	6.6	13.6	30.8
Restructuring and Related Cost, Expected Cost	'	'	32.6
Selling, General and Administrative Expenses | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0.2	0.2	0.2
Restructuring and Related Cost, Expected Cost	'	'	117.8
Selling, General and Administrative Expenses | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0.6	0.6	0.6
Restructuring and Related Cost, Expected Cost	'	'	30.4
Cost Of Goods Sold	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	-0.1	0.2	'
Cost Of Goods Sold | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0	0	'
Cost Of Goods Sold | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	0	0	'
Cost Of Goods Sold | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Incurred Cost	-0.1	0.2	'
Asset Impairment Charge [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	39.3
Asset Impairment Charge [Member] | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	0
Asset Impairment Charge [Member] | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	39.3
Asset Impairment Charge [Member] | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	0
Gain (Loss) on Disposition of Property, Plant and Equipment [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	-0.9
Gain (Loss) on Disposition of Property, Plant and Equipment [Member] | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	0
Gain (Loss) on Disposition of Property, Plant and Equipment [Member] | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	-0.9
Gain (Loss) on Disposition of Property, Plant and Equipment [Member] | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	0
Other Net [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	49.5
Other Net [Member] | Corporate	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	2.1
Other Net [Member] | Private Brands	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	36.3
Other Net [Member] | Consumer Foods	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Restructuring and Related Cost, Expected Cost	'	'	$11.10

RESTRUCTURING_Liabilities_for_

RESTRUCTURING (Liabilities for Initiatives and Changes) (Details) (SCAE Plan [Member], USD $)	6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013
Restructuring Cost and Reserve [Line Items]	'
Beginning balance	$28.40
Costs incurred and charged to expense	14.6
Costs paid or otherwise settled	-11.5
Ending balance	31.5
Severance and Related Costs [Member]	'
Restructuring Cost and Reserve [Line Items]	'
Beginning balance	17.2
Costs incurred and charged to expense	13.9
Costs paid or otherwise settled	-11.2
Ending balance	19.9
Multi-employer Pension Cost [Member]	'
Restructuring Cost and Reserve [Line Items]	'
Beginning balance	11.2
Costs incurred and charged to expense	0.7
Costs paid or otherwise settled	-0.3
Ending balance	$11.60

LONGTERM_DEBT_Net_Interest_Exp

LONG-TERM DEBT (Net Interest Expense) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Debt Disclosure [Abstract]	'	'	'	'
Interest Incurred, Long-term Debt	$99.40	$55.30	$199.10	$106.90
Interest Incurred, Short-term Debt	0.5	0.1	0.8	0.3
Interest income	-0.7	-0.7	-1.3	-1.5
Interest capitalized	-3.8	-1.3	-7.6	-3
Interest expense, net	$95.40	$53.40	$191	$102.70

LONGTERM_DEBT_Narrative_Detail

LONG-TERM DEBT (Narrative) (Details) (USD $)	3 Months Ended			6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 27, 2010	Nov. 24, 2013	Nov. 25, 2012
Debt Instrument [Line Items]	'	'	'	'	'
Repayments of Long-term Debt	$43	'	'	$50.70	$34.20
Reduction of net interest expense due to impact of interest rate swap contracts	2.4	2.3	'	4.7	4.5
Proceeds from termination of interest rate swap contract	'	'	31.5	'	'
Gains (Losses) on Extinguishment of Debt	2.4	'	'	'	'
Unsecured Debt | Ralcorp Notes	'	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'	'
Senior unsecured notes	716	'	'	716	'
Senior notes	33.9	'	'	33.9	'
Debt fair value adjustment	'	'	'	163.8	'
Amortization fair value adjustment	$1.80	'	'	$3.40	'

VARIABLE_INTEREST_ENTITIES_Nar

VARIABLE INTEREST ENTITIES (Narrative) (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	26-May-13
Variable Interest Entity [Line Items]	'	'
Libor Plus	2.00%	'
Price at which Ochoa has the right to put its equity interest	$41.90	'
Balance of promissory note due from joint venture	36.1	'
Long-term debt interest rate	3.25%	'
Line of credit with Lamb Weston BSW, Maximum Borrowing Capacity	15	'
Lamb Weston BSW	'	'
Variable Interest Entity [Line Items]	'	'
Acquisition of equity interest in Lamb Weston	49.99%	'
Lamb Weston RDO	'	'
Variable Interest Entity [Line Items]	'	'
Acquisition of equity interest in Lamb Weston	50.00%	'
Investment in Lamb Weston, maximum exposure	14.6	15.2
Owners' equity in capital structure of variable interest entity	29.1	'
Term borrowings from banks in capital structure of Lamb Weston, RDO	$43.40	'

VARIABLE_INTEREST_ENTITIES_Ref

VARIABLE INTEREST ENTITIES (Reflected in Condensed Consolidated Balance Sheets) (Details) (USD $)	Nov. 24, 2013	26-May-13	Nov. 25, 2012	27-May-12
In Millions, unless otherwise specified
Variable Interest Entity [Line Items]	'	'	'	'
Cash and cash equivalents	$192.70	$183.90	$476.80	$103
Receivables, less allowance for doubtful accounts	1,415.10	1,286.20	'	'
Inventories	2,776.10	2,390.30	'	'
Prepaid expenses and other current assets	371.7	515.6	'	'
Property, plant and equipment, net	3,932.30	3,850.40	'	'
Goodwill	8,455.90	8,444.10	'	'
Brands, trademarks and other intangibles, net	3,355.90	3,418.10	'	'
Total assets	20,786.40	20,405.30	'	'
Current installments of long-term debt	584.9	517.9	'	'
Accounts payable	1,783.70	1,501.60	'	'
Accrued payroll	179.2	287.2	'	'
Other accrued liabilities	948	909.6	'	'
Other noncurrent liabilities (minority interest)	2,724.10	2,754.10	'	'
Total liabilities	15,224.70	15,042.30	'	'
Variable Interest Entities	'	'	'	'
Variable Interest Entity [Line Items]	'	'	'	'
Cash and cash equivalents	10.5	8.9	'	'
Receivables, less allowance for doubtful accounts	24.4	16.4	'	'
Inventories	1.4	1.4	'	'
Prepaid expenses and other current assets	0.1	0.4	'	'
Property, plant and equipment, net	53.5	54.8	'	'
Goodwill	18.8	18.8	'	'
Brands, trademarks and other intangibles, net	7.1	7.5	'	'
Total assets	115.8	108.2	'	'
Accounts payable	9.6	8.9	'	'
Accrued payroll	0.6	0.6	'	'
Other accrued liabilities	0.7	0.7	'	'
Other noncurrent liabilities (minority interest)	34.1	30.7	'	'
Total liabilities	$45	$40.90	'	'

GOODWILL_AND_OTHER_IDENTIFIABL2

GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Change in Carrying Amount of Goodwill) (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013
Goodwill [Line Items]	'
Goodwill, Beginning Balance	$8,444.10
Currency translation and purchase accounting adjustments	11.8
Goodwill, Ending Balance	8,455.90
Consumer Foods	'
Goodwill [Line Items]	'
Goodwill, Beginning Balance	3,760.50
Currency translation and purchase accounting adjustments	-16.2
Goodwill, Ending Balance	3,744.30
Commercial Foods	'
Goodwill [Line Items]	'
Goodwill, Beginning Balance	857.4
Currency translation and purchase accounting adjustments	0.5
Goodwill, Ending Balance	857.9
Private Brands	'
Goodwill [Line Items]	'
Goodwill, Beginning Balance	3,826.20
Currency translation and purchase accounting adjustments	27.5
Goodwill, Ending Balance	$3,853.70

GOODWILL_AND_OTHER_IDENTIFIABL3

GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Other Identifiable Intangible Assets) (Details) (USD $)	Nov. 24, 2013	26-May-13
In Millions, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'	'
Non-amortizing intangible assets, gross carrying amount	$1,134.60	$1,139.70
Amortizing intangible assets, gross carrying amount	2,399.80	2,400.40
Intangible assets, gross carrying amount	3,534.40	3,540.10
Non-amortizing intangible assets, accumulated amortization	0	0
Amortizing intangible assets, accumulated amortization	178.5	122
Intangible assets, accumulated amortization	$178.50	$122

GOODWILL_AND_OTHER_IDENTIFIABL4

GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Narrative) (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013
Indefinite-lived Intangible Assets [Line Items]	'
Weighted average life in years of amortizing intangible assets	'23 years
Amortization expense year one	$110.10
Amortization expense year two	110.1
Amortization expense year three	110.1
Amortization expense year four	110.1
Amortization expense year five	$110.10

DERIVATIVE_FINANCIAL_INSTRUMEN2

DERIVATIVE FINANCIAL INSTRUMENTS (Narrative) (Details) (USD $)

6 Months Ended

12 Months Ended

3 Months Ended

3 Months Ended

In Millions, unless otherwise specified

Nov. 24, 2013

26-May-13

Nov. 24, 2013

Nov. 24, 2013

26-May-13

Nov. 24, 2013

26-May-13

29-May-11

Nov. 24, 2013

Nov. 24, 2013

26-May-13

Feb. 24, 2013

Nov. 24, 2013

Feb. 24, 2013

Nov. 24, 2013

Cash Flow Hedging

Open commodity purchase contracts

Open commodity purchase contracts

Open commodity sales contracts

Open commodity sales contracts

Interest Rate Swap

Interest Rate Swap

Forward and cross currency swap contracts

Forward and cross currency swap contracts

2043 Maturity

2043 Maturity

2023 Maturity

2023 Maturity

Fair Value Hedging

Fair Value Hedging

Cash Flow Hedging

Cash Flow Hedging

Cash Flow Hedging

Cash Flow Hedging

Derivative Financial Instruments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative asset prior to offsetting to total derivative

$15.60

$12.50

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative liability prior to offsetting to total derivative

20.2

22.7

'

'

'

'

'

'

'

'

'

'

'

'

'

Hedge for Anticipated Consumption of Commodity Inputs, Period

'36 months

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized loss associated with derivatives deferred in accumulated other comprehensive loss

'

'

41.8

'

'

'

'

'

'

'

'

'

'

'

'

Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax

'

'

'

'

'

'

'

'

'

'

'

4.2

'

2

'

Proceeds from settlement of interest rate swap

'

'

'

'

'

'

'

31.5

'

'

'

'

'

'

'

Unamortized amount of debt instruments being hedged

'

'

'

'

'

'

'

'

3.8

'

'

'

4.2

'

1.9

Amounts representing a right to reclaim cash collateral included in prepaid expenses and other current assets

4.6

10.2

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional value of open commodity contracts

'

'

500

1,800

1,800

2,000

1,500

'

'

348.6

359

'

'

'

'

Maximum amount of loss due to the credit risk of the counterparties

$51.90

'

'

'

'

'

'

'

'

'

'

'

'

'

'

DERIVATIVE_FINANCIAL_INSTRUMEN3

DERIVATIVE FINANCIAL INSTRUMENTS (Right to Reclaim Cash Collateral) (Details) (USD $)	Nov. 24, 2013	26-May-13
In Millions, unless otherwise specified
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'	'
Prepaid expenses and other current assets	$57.10	$78.60
Other accrued liabilities	$84.70	$137.90

DERIVATIVE_FINANCIAL_INSTRUMEN4

DERIVATIVE FINANCIAL INSTRUMENTS (Assets and Liabilities on A Gross Basis) (Details) (USD $)	Nov. 24, 2013	26-May-13
In Millions, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'
Total derivative assets	$72.70	$91.10
Total derivative liabilities	104.9	160.6
Designated as hedging instruments [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivative assets	4.6	0
Total derivative liabilities	46.4	104.5
Total derivatives not designated as hedging instruments [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivative assets not designated as hedging instruments	68.1	91.1
Total derivative liabilities not designated as hedging instruments	58.5	56.1
Interest rate contracts [Member] | Other accrued liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivative liabilities	46.4	104.5
Interest rate contracts [Member] | Prepaid expenses and other current assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivative assets	4.6	0
Commodity contracts | Other accrued liabilities [Member] | Total derivatives not designated as hedging instruments [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivative liabilities not designated as hedging instruments	55	53.7
Commodity contracts | Prepaid expenses and other current assets [Member] | Total derivatives not designated as hedging instruments [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivative assets not designated as hedging instruments	48.8	70.7
Foreign exchange contracts | Other accrued liabilities [Member] | Total derivatives not designated as hedging instruments [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivative liabilities not designated as hedging instruments	3.5	2.4
Foreign exchange contracts | Prepaid expenses and other current assets [Member] | Total derivatives not designated as hedging instruments [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivative assets not designated as hedging instruments	18.3	18.4
Other [Member] | Other accrued liabilities [Member] | Total derivatives not designated as hedging instruments [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivative liabilities not designated as hedging instruments	0	0
Other [Member] | Prepaid expenses and other current assets [Member] | Total derivatives not designated as hedging instruments [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Total derivative assets not designated as hedging instruments	$1	$2

DERIVATIVE_FINANCIAL_INSTRUMEN5

DERIVATIVE FINANCIAL INSTRUMENTS (Derivatives Not Designated as Hedging Instruments) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Derivatives, Fair Value [Line Items]	'	'	'	'
Total gain from derivative instruments not designated as hedging instruments	$4.40	$11.90	$17.50	$120.50
Commodity contracts | Sales [Member]	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Total gain from derivative instruments not designated as hedging instruments	-1	0	-2	-0.7
Commodity contracts | Cost of goods sold	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Total gain from derivative instruments not designated as hedging instruments	2.7	7.1	17.4	126.3
Commodity contracts | Selling, General and Administrative Expenses	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Total gain from derivative instruments not designated as hedging instruments	0	-0.1	0	0.1
Foreign exchange contracts | Cost of goods sold	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Total gain from derivative instruments not designated as hedging instruments	2.1	5.4	0.9	1.3
Foreign exchange contracts | Selling, General and Administrative Expenses	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Total gain from derivative instruments not designated as hedging instruments	$0.60	($0.50)	$1.20	($6.50)

SHAREBASED_PAYMENTS_Narrative_

SHARE-BASED PAYMENTS (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, except Per Share data, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Stock Based Compensation Activity [Line Items]	'	'	'	'
Total stock-based compensation expense	$14.90	$14.70	$32.10	$27.80
Stock option granted	'	'	3.6	'
Weighted average exercise price of stock options granted	'	'	$36.87	'
Weighted average value of stock options granted during the first half of fiscal 2013	'	'	$4.71	'
Performance period ending 2015	'	'	'	'
Stock Based Compensation Activity [Line Items]	'	'	'	'
Percentage of the targeted number of performance shares, minimum range and will be paid in shares of common stock	'	'	0.00%	'
Percentage of the targeted number of performance shares, maximum range and will be paid in shares of common stock	'	'	220.00%	'
Percentage of target incentive required payout	'	'	25.00%	'
Performance period ending 2014	'	'	'	'
Stock Based Compensation Activity [Line Items]	'	'	'	'
Percentage of the targeted number of performance shares, minimum range and will be paid in shares of common stock	'	'	0.00%	'
Percentage of the targeted number of performance shares, maximum range and will be paid in shares of common stock	'	'	220.00%	'
Percentage of target incentive required payout	'	'	25.00%	'
Restricted stock	'	'	'	'
Stock Based Compensation Activity [Line Items]	'	'	'	'
Stock granted, shares	'	'	0.8	'
Weighted average value of stock options granted	'	'	$36.53	'
Cash-settled restricted stock units	'	'	'	'
Stock Based Compensation Activity [Line Items]	'	'	'	'
Stock granted, shares	'	'	0.8	'
Weighted average value of stock options granted	'	'	$36.89	'
Performance shares	'	'	'	'
Stock Based Compensation Activity [Line Items]	'	'	'	'
Stock granted, shares	'	'	0.4	'
Weighted average value of stock options granted	'	'	$35.05	'

SHAREBASED_PAYMENTS_Weighted_A

SHARE-BASED PAYMENTS (Weighted Average Black-Scholes Assumptions) (Detail)	6 Months Ended
	Nov. 24, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Expected volatility (%)	21.13%
Dividend yield (%)	3.24%
Risk-free interest rate (%)	1.37%
Expected life of stock option (years)	'4 years 10 months 27 days

EARNINGS_PER_SHARE_Average_Sha

EARNINGS PER SHARE (Average Share Amounts to Compute EPS) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Net income available to ConAgra Foods, Inc. common stockholders:	'	'	'	'
Income from continuing operations attributable to ConAgra Foods, Inc. common stockholders	$230.30	$212.60	$373.50	$463.10
Income (loss) from discontinued operations, net of tax, attributable to ConAgra Foods, Inc. common stockholders	18.4	-1	19.5	-1.4
Net income attributable to ConAgra Foods, Inc.	248.7	211.6	393	461.7
Less: Increase in redemption value of noncontrolling interests in excess of earnings allocated	0.4	0.4	0.8	0.8
Net income available to ConAgra Foods, Inc. common stockholders	$248.30	$211.20	$392.20	$460.90
Weighted average shares outstanding:	'	'	'	'
Basic weighted average shares outstanding	421.1	405.9	421	406.5
Add: Dilutive effect of stock options, restricted stock unit awards, and other dilutive securities	5.9	5.8	6.5	5.3
Diluted weighted average shares outstanding	427	411.7	427.5	411.8

EARNINGS_PER_SHARE_Narrative_D

EARNINGS PER SHARE (Narrative) (Details) (Stock Options)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Stock Options	'	'	'	'
Schedule Of Earnings Per Share Basic And Diluted [Line Items]	'	'	'	'
Stock options outstanding	3.6	4.9	2.6	12

INVENTORIES_Major_Classes_of_I

INVENTORIES (Major Classes of Inventories) (Details) (USD $)	Nov. 24, 2013	26-May-13
In Millions, unless otherwise specified
Disclosure Inventories Major Classes Of Inventories [Abstract]	'	'
Raw materials and packaging	$873.50	$733.20
Work in process	183.9	118
Finished goods	1,577.80	1,398.90
Supplies and other	140.9	140.2
Total	$2,776.10	$2,390.30

INCOME_TAXES_Details

INCOME TAXES (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012	26-May-13
Income Tax Disclosure [Abstract]	'	'	'	'	'
Income tax expense	$117.90	$109.70	$151.80	$233.50	'
Effective tax rate	34.00%	34.00%	29.00%	33.00%	'
Gross unrecognized tax benefits	100.4	'	100.4	'	100
Unrecognized tax benefits with uncertainty of timing of deductibility	8	'	8	'	8
Unrecognized liabilities for gross interest and penalties	30.2	'	30.2	'	30.4
Unrecognized tax benefits that would favorably impact effective tax rate	65	'	65	'	61.8
Gross unrecognized tax benefits, actual	$8	'	$8	'	'

CONTINGENCIES_Details

CONTINGENCIES (Details) (USD $)

3 Months Ended

6 Months Ended

12 Months Ended

3 Months Ended

6 Months Ended

6 Months Ended

3 Months Ended

1 Months Ended

Nov. 24, 2013

26-May-13

Feb. 24, 2013

Aug. 26, 2012

Nov. 24, 2013

Nov. 25, 2012

27-May-12

30-May-09

26-May-13

Aug. 26, 2012

Aug. 26, 2012

Nov. 24, 2013

Nov. 24, 2013

Nov. 24, 2013

Nov. 24, 2013

Aug. 26, 2012

Apr. 30, 2010

Apr. 30, 2010

Nov. 24, 2013

Litigation Matter

Compensatory Damages

Punitive Damages

Beatrice

Potato Supply Agreement Guarantee

Onion Supply Agreement Guarantee

Leases and Other Commercial Obligations Guarantee

Threatened Litigation

Subcontractor

Primary Contractor

California

site

Damage from Fire, Explosion or Other Hazard

Pending Litigation

Pending Litigation

Beatrice

employee

Damage from Fire, Explosion or Other Hazard

Damage from Fire, Explosion or Other Hazard

employee

employee

Guarantor Obligations [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expected decision from court

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1,100,000,000

Number of sites under environmental matters for which acquired company has a liability

'

'

'

'

'

'

'

'

'

'

'

36

'

'

'

'

'

'

'

Number of sites under environmental matters for which acquired company is making payments

'

'

'

'

'

'

'

'

'

'

'

34

'

'

'

'

'

'

'

Reserves for Beatrice environmental matters

'

'

'

'

'

'

'

'

'

'

'

62,600,000

'

'

'

'

'

'

'

Maximum period expected for disbursements on environmental matters

'

'

'

'

'

'

'

'

'

'

'

'18 years

'

'

'

'

'

'

'

Maximum period of guarantee

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'2 years

'

'

'

'

Guarantee obligation under purchase agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

25,000,000

6,800,000

'

'

'

'

Amount of supplier loans effectively guaranteed

'

'

'

'

'

'

'

'

'

'

'

'

21,900,000

'

'

'

'

'

'

Loan purchase under agreement

'

'

'

'

'

'

40,800,000

'

'

'

'

'

'

'

'

'

'

'

'

Asset impairment charges

8,900,000

'

10,200,000

'

14,800,000

4,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Face value of federal income tax credits

21,200,000

'

'

'

21,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dispute coverage charge with insurance carrier

'

'

'

'

'

'

17,500,000

24,800,000

7,500,000

'

'

'

'

'

'

'

'

'

'

Proceeds from Legal Settlements

'

25,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain (Loss) Related to Litigation Settlement

'

25,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss Contingency, Number of Plaintiffs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3

2

1

'

Unfavorable verdict

'

'

'

'

'

'

'

'

'

77,500,000

100,000,000

'

'

'

'

'

'

'

'

Punitive award against the company

'

'

'

7,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Damages accrued in prior period

$3,000,000

'

'

'

$3,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

PENSION_AND_POSTRETIREMENT_BEN2

PENSION AND POSTRETIREMENT BENEFITS (Costs) (Details) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Postretirement Benefits	'	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'	'
Service cost	$0.20	$0.10	$0.40	$0.20
Interest cost	2.4	2.5	4.8	5
Amortization of prior service cost	-1.8	-2.1	-3.6	-4.2
Recognized net actuarial loss	1.7	1.5	3.4	3
Total benefit cost	2.5	2	5	4
Pension Benefits	'	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'	'
Service cost	22.2	20.1	44.5	40.3
Interest cost	37.8	36.6	75.6	73.2
Expected return on plan assets	-63.2	-52.2	-126.4	-104.5
Amortization of prior service cost	0.9	0.8	1.8	1.6
Curtailment loss	0	0	0	0.8
Benefit cost - Company plans	-2.3	5.3	-4.5	11.4
Pension benefit cost - multi-employer plans	3.6	2.2	6.7	4.3
Total benefit cost	$1.30	$7.50	$2.20	$15.70

PENSION_AND_POSTRETIREMENT_BEN3

PENSION AND POSTRETIREMENT BENEFITS (Narrative) (Detail) (USD $)	3 Months Ended	6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 24, 2013
Pension Benefits	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'
Employer contributions to pension plan and other postretirement plan	$5.60	$10.10
Further contribution to pension and other postretirement plan	'	7.2
Postretirement Benefits	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'
Employer contributions to pension plan and other postretirement plan	5.2	10.5
Further contribution to pension and other postretirement plan	'	$15.50

STOCKHOLDERS_EQUITY_Reconcilia

STOCKHOLDERS' EQUITY (Reconciliation of Stockholders Equity) (Details) (USD $)	3 Months Ended		6 Months Ended				6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	26-May-13	Nov. 24, 2013	Nov. 24, 2013	Nov. 24, 2013	Nov. 24, 2013	Nov. 24, 2013
					Common Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Noncontrolling Interests
Schedule Of Stockholders Equity [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Opening Balance	'	'	$5,363	'	$2,839.70	$2,839.70	$1,006.20	$5,129.50	($196.10)	($3,514.90)	$98.60
Opening Balance, Shares	'	'	'	'	567.9	567.9	'	'	'	'	'
Stock option and incentive plans	'	'	96.3	'	'	'	12.1	-0.5	'	84.7	'
Currency translation adjustment	'	'	-21	'	'	'	'	'	-11.1	'	-9.9
Issuance of treasury shares	'	'	0	'	'	'	'	'	'	'	'
Repurchase of common shares	'	'	-100	'	'	'	'	'	'	-100	'
Unrealized gain on securities	'	'	0.4	'	'	'	'	'	0.4	'	'
Derivative adjustment, net of reclassification adjustment	-6.2	-0.3	39.4	-3	'	'	'	'	39.4	'	'
Activities of noncontrolling interests	'	'	0	'	'	'	-0.8	'	'	'	0.8
Pension and postretirement healthcare benefits	1.4	0.2	1.2	1.1	'	'	'	'	1.2	'	'
Dividends declared on common stock; $0.50 per share	'	'	-210.6	'	'	'	'	-210.6	'	'	'
Net income attributable to ConAgra Foods, Inc.	248.7	211.6	393	461.7	'	'	'	393	'	'	'
Ending Balance	$5,561.70	'	$5,561.70	'	$2,839.70	$2,839.70	$1,017.50	$5,311.40	($166.20)	($3,530.20)	$89.50
Ending Balance, Shares	'	'	'	'	567.9	567.9	'	'	'	'	'

STOCKHOLDERS_EQUITY_Parentheti

STOCKHOLDERS' EQUITY (Parenthetical) (Details) (USD $)	6 Months Ended
	Nov. 24, 2013
Stockholders' Equity Note [Abstract]	'
Cash dividends declared per common share	$0.50

FAIR_VALUE_MEASUREMENTS_Fair_V

FAIR VALUE MEASUREMENTS (Fair Value of Assets and Liabilities Measured on Recurring Basis) (Details) (USD $)	Nov. 24, 2013	26-May-13
In Millions, unless otherwise specified
Assets:	'	'
Derivative assets	$57.10	$78.60
Available-for-sale securities	2.5	6.1
Deferred compensation assets	6.8	6.9
Total assets	66.4	91.6
Liabilities:	'	'
Derivative liabilities	84.7	137.9
Deferred compensation liabilities	41.3	35.9
Total liabilities	126	173.8
Level 1	'	'
Assets:	'	'
Derivative assets	5.2	13.9
Available-for-sale securities	2.5	6.1
Deferred compensation assets	6.8	6.9
Total assets	14.5	26.9
Liabilities:	'	'
Derivative liabilities	0	0
Deferred compensation liabilities	41.3	35.9
Total liabilities	41.3	35.9
Level 2	'	'
Assets:	'	'
Derivative assets	51.9	64.7
Available-for-sale securities	0	0
Deferred compensation assets	0	0
Total assets	51.9	64.7
Liabilities:	'	'
Derivative liabilities	84.7	137.9
Deferred compensation liabilities	0	0
Total liabilities	84.7	137.9
Level 3	'	'
Assets:	'	'
Derivative assets	0	0
Available-for-sale securities	0	0
Deferred compensation assets	0	0
Total assets	0	0
Liabilities:	'	'
Derivative liabilities	0	0
Deferred compensation liabilities	0	0
Total liabilities	$0	$0

FAIR_VALUE_MEASUREMENTS_Narrat

FAIR VALUE MEASUREMENTS (Narrative) (Details) (USD $)	Nov. 24, 2013	26-May-13	Nov. 24, 2013
			Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Long-Lived Assets	'	'	$19,700,000
Property, Plant, and Equipment, Fair Value Disclosure	'	'	10,800,000
Impairment of Long-Lived Assets Held-for-use	'	'	8,900,000
Carrying amount of long-term debt	9,400,000,000	9,400,000,000	'
Long-term debt at fair value	$9,800,000,000	$10,200,000,000	'

BUSINESS_SEGMENTS_AND_RELATED_2

BUSINESS SEGMENTS AND RELATED INFORMATION (Narrative) (Detail) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012	26-May-13
			Segment
Segment Reporting [Abstract]	'	'	'	'	'
Net derivative losses recognized in general corporate expenses	'	'	$29.80	'	'
Number of reportable segments	'	'	3	'	'
Cumulative net derivative losses from economic hedges recognized in corporate	38.9	'	38.9	'	'
Derivative loss to be reclassified to segment operating results thereafter	'	'	9.1	'	'
Reclassify losses in 2014	'	'	22.4	'	'
Reclassify losses in 2015 and thereafter	'	'	$16.50	'	'
Percentage of consolidated net sales in consumer food segment accounted by Wal-Mart Stores, Inc. and its affiliates	18.00%	18.00%	17.00%	18.00%	'
Percentage of consolidated net receivables in commercial foods accounted by Wal-Mart Stores, Inc. and its affiliates	15.00%	'	15.00%	'	15.00%

BUSINESS_SEGMENTS_AND_RELATED_3

BUSINESS SEGMENTS AND RELATED INFORMATION (Segment Operations) (Detail) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Net sales	'	'	'	'
Net sales	$4,713.90	$3,727.20	$8,911.40	$7,029.50
Operating profit	'	'	'	'
Operating profit	547.5	458.4	942.7	835
Equity method investment earnings	'	'	'	'
Equity method investment earnings	5.3	12.8	9.4	20.4
Operating profit plus equity method investment earnings	'	'	'	'
Total operating profit plus equity method investment earnings	552.8	471.2	952.1	855.4
General corporate expenses	105.5	90.6	229.2	49.1
Interest expense, net	95.4	53.4	191	102.7
Income tax expense	117.9	109.7	151.8	233.5
Income from continuing operations	234	217.5	380.1	470.1
Less: Net income attributable to noncontrolling interests	3.7	4.9	6.6	7
Income from continuing operations attributable to ConAgra Foods, Inc.	230.3	212.6	373.5	463.1
Consumer Foods	'	'	'	'
Net sales	'	'	'	'
Net sales	2,016.10	2,023.50	3,665.50	3,690.30
Operating profit	'	'	'	'
Operating profit	288.9	256.7	456	465.4
Equity method investment earnings	'	'	'	'
Equity method investment earnings	0.5	0.5	0.9	0.6
Operating profit plus equity method investment earnings	'	'	'	'
Total operating profit plus equity method investment earnings	289.4	257.2	456.9	466
Commercial Foods	'	'	'	'
Net sales	'	'	'	'
Net sales	1,574	1,526.30	3,107.90	2,988.90
Operating profit	'	'	'	'
Operating profit	169.2	194.7	330.3	355.7
Equity method investment earnings	'	'	'	'
Equity method investment earnings	4.8	12.3	8.5	19.8
Operating profit plus equity method investment earnings	'	'	'	'
Total operating profit plus equity method investment earnings	174	207	338.8	375.5
Private Brands	'	'	'	'
Net sales	'	'	'	'
Net sales	1,123.80	177.4	2,138	350.3
Operating profit	'	'	'	'
Operating profit	89.4	7	156.4	13.9
Operating profit plus equity method investment earnings	'	'	'	'
Total operating profit plus equity method investment earnings	$89.40	$7	$156.40	$13.90

BUSINESS_SEGMENTS_AND_RELATED_4

BUSINESS SEGMENTS AND RELATED INFORMATION (Allocation of Net Derivative Gains (Losses) from Economic Hedges of Forecasted Commodity Consumption and Foreign Currency Risk (Detail) (USD $)	3 Months Ended		6 Months Ended
In Millions, unless otherwise specified	Nov. 24, 2013	Nov. 25, 2012	Nov. 24, 2013	Nov. 25, 2012
Operating Statistics [Line Items]	'	'	'	'
Derivative gain (loss) on derivative, net	'	'	($29.80)	'
Commodity contracts	'	'	'	'
Operating Statistics [Line Items]	'	'	'	'
Derivative gain (loss) on derivative, net	-11.1	-12	-28.6	108.2
Commodity contracts | Consumer Foods	'	'	'	'
Operating Statistics [Line Items]	'	'	'	'
Derivative gain (loss) on derivative, net	-0.6	6.1	1.3	2.9
Commodity contracts | Commercial Foods	'	'	'	'
Operating Statistics [Line Items]	'	'	'	'
Derivative gain (loss) on derivative, net	-0.8	-2.1	1.2	-8.2
Commodity contracts | Private Brands	'	'	'	'
Operating Statistics [Line Items]	'	'	'	'
Derivative gain (loss) on derivative, net	-0.6	0.1	-1.3	-0.6
Operating Segments [Member] | Commodity contracts	'	'	'	'
Operating Statistics [Line Items]	'	'	'	'
Derivative gain (loss) on derivative, net	-2	4.1	1.2	-5.9
Segment Reconciling Items | Commodity contracts	'	'	'	'
Operating Statistics [Line Items]	'	'	'	'
Derivative gain (loss) on derivative, net	($9.10)	($16.10)	($29.80)	$114.10