XML 91 R74.htm IDEA: XBRL DOCUMENT v2.4.1.9
BUSINESS SEGMENTS AND RELATED INFORMATION (Narrative) (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Nov. 23, 2014
Nov. 24, 2013
Nov. 23, 2014
Segment
Nov. 24, 2013
May 25, 2014
Segment Reporting Information [Line Items]          
Number of reportable segments     3us-gaap_NumberOfReportableSegments    
Net derivative gains (losses) recognized in general corporate expenses     $ (61.2)us-gaap_DerivativeGainLossOnDerivativeNet    
Cumulative net derivative losses from economic hedges recognized in corporate 48.3cag_AccumulatedOtherComprehensiveIncomeLossUnrealizedGainLossOnDerivativeHedgesAdjustmentNetOfTax   48.3cag_AccumulatedOtherComprehensiveIncomeLossUnrealizedGainLossOnDerivativeHedgesAdjustmentNetOfTax    
Derivative gain to be reclassified to segment operating results thereafter     12.9cag_DerivativeGainLossOfPreviousYearToBeReclassifiedToSegmentOperatingResults    
Reclassify losses in 2014     38.0cag_DerivativeGainsLossesToBeReclassifiedToSegmentOperatingResultsNextFiscalYear    
Reclassify losses in 2015 and thereafter     10.3cag_DerivativeGainLossToBeReclassifiedToSegmentOperatingResultsThereafter    
Percentage of consolidated net sales in consumer food segment accounted by Wal-Mart Stores, Inc. and its affiliates 18.00%us-gaap_ConcentrationRiskPercentage1 18.00%us-gaap_ConcentrationRiskPercentage1 18.00%us-gaap_ConcentrationRiskPercentage1 19.00%us-gaap_ConcentrationRiskPercentage1  
Percentage of consolidated net receivables in commercial foods accounted by Wal-Mart Stores, Inc. and its affiliates 17.00%cag_EntityWideReceivablesMajorCustomerAmountInPercentage   17.00%cag_EntityWideReceivablesMajorCustomerAmountInPercentage   16.00%cag_EntityWideReceivablesMajorCustomerAmountInPercentage
Consumer Foods          
Segment Reporting Information [Line Items]          
Net derivative gains (losses) recognized in general corporate expenses 2.3us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_StatementBusinessSegmentsAxis
= cag_ConsumerFoodsMember
       
Private Brands          
Segment Reporting Information [Line Items]          
Net derivative gains (losses) recognized in general corporate expenses 0.6us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_StatementBusinessSegmentsAxis
= cag_PrivateBrandsMember
       
Commercial Segment          
Segment Reporting Information [Line Items]          
Net derivative gains (losses) recognized in general corporate expenses $ 0.2us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CommercialPortfolioSegmentMember