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Derivative Financial Instruments (Aggregate Outstanding Notionals Related To Fair Value Hedges) (Details) (Fair Value Hedging [Member], Designated as Hedging Instrument [Member]) | Dec. 27, 2014 lb | Sep. 27, 2014 lb
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Live Cattle (in pounds) |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | 442,000,000 invest_DerivativeNonmonetaryNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = tsn_LiveCattleMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_FairValueHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | 427,000,000 invest_DerivativeNonmonetaryNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = tsn_LiveCattleMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_FairValueHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember
Lean Hogs (in pounds) |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | 224,000,000 invest_DerivativeNonmonetaryNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = tsn_LeanHogsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_FairValueHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | 329,000,000 invest_DerivativeNonmonetaryNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = tsn_LeanHogsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_FairValueHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNonmonetaryNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration