<?xml version="1.0" encoding="utf-8"?>
<InstanceReport xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Version>2.2.0.7</Version>
  <hasSegments>true</hasSegments>
  <ReportName>PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Plan Assets) (Details) (USD $)</ReportName>
  <ReportLongName>41505 - Disclosure - PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Plan Assets) (Details)</ReportLongName>
  <DisplayLabelColumn>true</DisplayLabelColumn>
  <ShowElementNames>false</ShowElementNames>
  <RoundingOption>In Millions</RoundingOption>
  <HasEmbeddedReports>false</HasEmbeddedReports>
  <Columns>
    <Column>
      <LabelColumn>false</LabelColumn>
      <Id>1</Id>
      <Labels>
        <Label Id="1" Label="12 Months Ended" />
        <Label Id="2" Label="Oct. 02, 2010" />
      </Labels>
      <CurrencyCode>USD</CurrencyCode>
      <FootnoteIndexer />
      <hasSegments>false</hasSegments>
      <hasScenarios>false</hasScenarios>
      <Segments />
      <Scenarios />
      <Units>
        <Unit>
          <UnitID>Unit12</UnitID>
          <UnitType>Standard</UnitType>
          <StandardMeasure>
            <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
            <MeasureValue>USD</MeasureValue>
            <MeasureNamespace>iso4217</MeasureNamespace>
          </StandardMeasure>
          <Scale>0</Scale>
        </Unit>
        <Unit>
          <UnitID>Unit13</UnitID>
          <UnitType>Standard</UnitType>
          <StandardMeasure>
            <MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema>
            <MeasureValue>pure</MeasureValue>
            <MeasureNamespace>xbrli</MeasureNamespace>
          </StandardMeasure>
          <Scale>0</Scale>
        </Unit>
        <Unit>
          <UnitID>Unit1</UnitID>
          <UnitType>Standard</UnitType>
          <StandardMeasure>
            <MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema>
            <MeasureValue>shares</MeasureValue>
            <MeasureNamespace>xbrli</MeasureNamespace>
          </StandardMeasure>
          <Scale>0</Scale>
        </Unit>
        <Unit>
          <UnitID>Unit14</UnitID>
          <UnitType>Divide</UnitType>
          <NumeratorMeasure>
            <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
            <MeasureValue>USD</MeasureValue>
            <MeasureNamespace>iso4217</MeasureNamespace>
          </NumeratorMeasure>
          <DenominatorMeasure>
            <MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema>
            <MeasureValue>shares</MeasureValue>
            <MeasureNamespace>xbrli</MeasureNamespace>
          </DenominatorMeasure>
          <Scale>0</Scale>
        </Unit>
      </Units>
      <CurrencySymbol>$</CurrencySymbol>
    </Column>
    <Column>
      <LabelColumn>false</LabelColumn>
      <Id>2</Id>
      <Labels>
        <Label Id="1" Label="Oct. 03, 2009" />
      </Labels>
      <CurrencyCode>USD</CurrencyCode>
      <FootnoteIndexer />
      <hasSegments>false</hasSegments>
      <hasScenarios>false</hasScenarios>
      <Segments />
      <Scenarios />
      <Units>
        <Unit>
          <UnitID>Unit12</UnitID>
          <UnitType>Standard</UnitType>
          <StandardMeasure>
            <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
            <MeasureValue>USD</MeasureValue>
            <MeasureNamespace>iso4217</MeasureNamespace>
          </StandardMeasure>
          <Scale>0</Scale>
        </Unit>
        <Unit>
          <UnitID>Unit13</UnitID>
          <UnitType>Standard</UnitType>
          <StandardMeasure>
            <MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema>
            <MeasureValue>pure</MeasureValue>
            <MeasureNamespace>xbrli</MeasureNamespace>
          </StandardMeasure>
          <Scale>0</Scale>
        </Unit>
        <Unit>
          <UnitID>Unit14</UnitID>
          <UnitType>Divide</UnitType>
          <NumeratorMeasure>
            <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
            <MeasureValue>USD</MeasureValue>
            <MeasureNamespace>iso4217</MeasureNamespace>
          </NumeratorMeasure>
          <DenominatorMeasure>
            <MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema>
            <MeasureValue>shares</MeasureValue>
            <MeasureNamespace>xbrli</MeasureNamespace>
          </DenominatorMeasure>
          <Scale>0</Scale>
        </Unit>
        <Unit>
          <UnitID>Unit1</UnitID>
          <UnitType>Standard</UnitType>
          <StandardMeasure>
            <MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema>
            <MeasureValue>shares</MeasureValue>
            <MeasureNamespace>xbrli</MeasureNamespace>
          </StandardMeasure>
          <Scale>0</Scale>
        </Unit>
      </Units>
      <CurrencySymbol>$</CurrencySymbol>
    </Column>
  </Columns>
  <Rows>
    <Row>
      <Id>2</Id>
      <Label>Actual Plan Asset Allocations- Cash</Label>
      <Level>2</Level>
      <ElementName>tsn_DefinedBenefitPlanCash</ElementName>
      <ElementPrefix>tsn</ElementPrefix>
      <IsBaseElement>false</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>Defined benefit plan, Cash</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.003</NumericAmount>
          <RoundedNumericAmount>0.003</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.002</NumericAmount>
          <RoundedNumericAmount>0.002</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>Defined benefit plan, Cash</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>3</Id>
      <Label>Actual Plan Asset Allocations- Fixed Income Securities</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanDebtSecurities</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.185</NumericAmount>
          <RoundedNumericAmount>0.185</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.197</NumericAmount>
          <RoundedNumericAmount>0.197</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>The percentage of the fair value of debt securities to the fair value of total plan assets held as of the measurement date.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(1)

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>4</Id>
      <Label>Actual Plan Asset Allocations- US Stock Funds</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanEquitySecurities</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.446</NumericAmount>
          <RoundedNumericAmount>0.446</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.432</NumericAmount>
          <RoundedNumericAmount>0.432</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>The percentage of the fair value of equity securities to the fair value of total plan assets held as of the measurement date.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(1)

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>5</Id>
      <Label>Actual Plan Asset Allocations- International Stock Funds</Label>
      <Level>2</Level>
      <ElementName>tsn_DefinedBenefitPlanInternationalStockFunds</ElementName>
      <ElementPrefix>tsn</ElementPrefix>
      <IsBaseElement>false</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>Defined benefit plan, International stock funds</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.199</NumericAmount>
          <RoundedNumericAmount>0.199</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.202</NumericAmount>
          <RoundedNumericAmount>0.202</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>Defined benefit plan, International stock funds</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>6</Id>
      <Label>Actual Plan Asset Allocations- Real Estate</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanRealEstate</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.05</NumericAmount>
          <RoundedNumericAmount>0.05</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.047</NumericAmount>
          <RoundedNumericAmount>0.047</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>The percentage of the fair value of real estate to the fair value of total plan assets held as of the measurement date.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(1)

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>7</Id>
      <Label>Actual Plan Asset Allocations- Alternatives</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanOtherPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.117</NumericAmount>
          <RoundedNumericAmount>0.117</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.12</NumericAmount>
          <RoundedNumericAmount>0.12</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>The percentage of the fair value of investments other than debt securities, equity securities, and real estate to the fair value of total plan assets held as of the measurement date.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(1)

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>8</Id>
      <Label>Actual Plan Asset Allocations- Total</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>1</NumericAmount>
          <RoundedNumericAmount>1</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>1</NumericAmount>
          <RoundedNumericAmount>1</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>The aggregate percentage of the fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of total plan assets held as of the measurement date.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(1)

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>9</Id>
      <Label>Target Plan Asset Allocations- Cash</Label>
      <Level>2</Level>
      <ElementName>tsn_DefinedBenefitPlanTargetAllocationPercentageOfAssetsCash</ElementName>
      <ElementPrefix>tsn</ElementPrefix>
      <IsBaseElement>false</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>Defined benefit plan target allocation percentage of assets, cash</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.01</NumericAmount>
          <RoundedNumericAmount>0.01</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>Defined benefit plan target allocation percentage of assets, cash</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>10</Id>
      <Label>Target Plan Asset Allocations- Fixed Income Securities</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecurities</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.19</NumericAmount>
          <RoundedNumericAmount>0.19</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>Target allocation percentage of investments in debt securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(2)

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>11</Id>
      <Label>Target Plan Asset Allocations- US Stock Funds</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquitySecurities</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.45</NumericAmount>
          <RoundedNumericAmount>0.45</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>Target allocation percentage of investments in equity securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>12</Id>
      <Label>Target Plan Asset Allocations- International Stock Funds</Label>
      <Level>2</Level>
      <ElementName>tsn_DefinedBenefitPlanTargetAllocationPercentageOfAssetsInternationalStockFunds</ElementName>
      <ElementPrefix>tsn</ElementPrefix>
      <IsBaseElement>false</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>Defined benefit plan target allocation percentage of assets, International stock funds</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.2</NumericAmount>
          <RoundedNumericAmount>0.2</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>Defined benefit plan target allocation percentage of assets, International stock funds</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>13</Id>
      <Label>Target Plan Asset Allocations- Real Estate</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanTargetAllocationPercentageOfAssetsRealEstate</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.05</NumericAmount>
          <RoundedNumericAmount>0.05</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>Target allocation percentage of investments in real estate to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>14</Id>
      <Label>Target Plan Asset Allocations- Alternatives</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanTargetAllocationPercentageOfAssetsOther</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0.1</NumericAmount>
          <RoundedNumericAmount>0.1</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>Target allocation percentage in other than debt securities, equity securities, and real estate to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>15</Id>
      <Label>Target Plan Asset Allocations- Total</Label>
      <Level>2</Level>
      <ElementName>tsn_DefinedBenefitPlanTargetAllocationPercentageOfAssetsTotal</ElementName>
      <ElementPrefix>tsn</ElementPrefix>
      <IsBaseElement>false</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>Defined benefit plan target allocation percentage of assets, total</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>1</NumericAmount>
          <RoundedNumericAmount>1</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>us-types:percentItemType</ElementDataType>
      <SimpleDataType>pure</SimpleDataType>
      <ElementDefenition>Defined benefit plan target allocation percentage of assets, total</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>16</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>true</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>22000000</NumericAmount>
          <RoundedNumericAmount>22</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>true</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>21000000</NumericAmount>
          <RoundedNumericAmount>21</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>17</Id>
      <Label>Level 1 [Member] | Cash and Cash Equivalents [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>3</Id>
          <Labels>
            <Label Id="1" Label="Level 1 [Member]" />
            <Label Id="2" Label="Cash and Cash Equivalents [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 1 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel1Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Cash and Cash Equivalents [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_CashAndCashEquivalentsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>32</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>33</Id>
      <Label>Level 1 [Member] | Fixed Income Securities Bond Fund [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>4</Id>
          <Labels>
            <Label Id="1" Label="Level 1 [Member]" />
            <Label Id="2" Label="Fixed Income Securities Bond Fund [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 1 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel1Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Fixed Income Securities Bond Fund [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_BondFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>48</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>11000000</NumericAmount>
          <RoundedNumericAmount>11</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>49</Id>
      <Label>Level 1 [Member] | U.S. stock funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>5</Id>
          <Labels>
            <Label Id="1" Label="Level 1 [Member]" />
            <Label Id="2" Label="U.S. stock funds [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 1 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel1Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>U.S. stock funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_EquitySecuritiesMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>64</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>26000000</NumericAmount>
          <RoundedNumericAmount>26</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>65</Id>
      <Label>Level 1 [Member] | International stock funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>6</Id>
          <Labels>
            <Label Id="1" Label="Level 1 [Member]" />
            <Label Id="2" Label="International stock funds [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 1 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel1Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>International stock funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_InternationalStockFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>80</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>12000000</NumericAmount>
          <RoundedNumericAmount>12</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>81</Id>
      <Label>Level 1 [Member] | Global real estate funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>7</Id>
          <Labels>
            <Label Id="1" Label="Level 1 [Member]" />
            <Label Id="2" Label="Global real estate funds [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 1 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel1Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Global real estate funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_RealEstateMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>96</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>3000000</NumericAmount>
          <RoundedNumericAmount>3</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>97</Id>
      <Label>Level 1 [Member] | Total equity securities [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>8</Id>
          <Labels>
            <Label Id="1" Label="Level 1 [Member]" />
            <Label Id="2" Label="Total equity securities [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 1 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel1Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total equity securities [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_ExchangeTradedFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>112</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>41000000</NumericAmount>
          <RoundedNumericAmount>41</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>113</Id>
      <Label>Level 1 [Member] | Alternatives [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>9</Id>
          <Labels>
            <Label Id="1" Label="Level 1 [Member]" />
            <Label Id="2" Label="Alternatives [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 1 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel1Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Alternatives [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_AlternativesMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>128</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[2]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>129</Id>
      <Label>Level 1 [Member] | Total fair value [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>10</Id>
          <Labels>
            <Label Id="1" Label="Level 1 [Member]" />
            <Label Id="2" Label="Total fair value [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 1 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel1Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total fair value [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_TotalFairValueMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>144</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>52000000</NumericAmount>
          <RoundedNumericAmount>52</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>145</Id>
      <Label>Level 1 [Member] | Insurance contract [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>11</Id>
          <Labels>
            <Label Id="1" Label="Level 1 [Member]" />
            <Label Id="2" Label="Insurance contract [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 1 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel1Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Insurance contract [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_InsuranceContractsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>160</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>161</Id>
      <Label>Level 1 [Member] | Total plan assets [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>12</Id>
          <Labels>
            <Label Id="1" Label="Level 1 [Member]" />
            <Label Id="2" Label="Total plan assets [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 1 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel1Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total plan assets [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_TotalPlanAssetsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>176</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>52000000</NumericAmount>
          <RoundedNumericAmount>52</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>177</Id>
      <Label>Level 2 [Member] | Cash and Cash Equivalents [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>13</Id>
          <Labels>
            <Label Id="1" Label="Level 2 [Member]" />
            <Label Id="2" Label="Cash and Cash Equivalents [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 2 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel2Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Cash and Cash Equivalents [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_CashAndCashEquivalentsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>192</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>193</Id>
      <Label>Level 2 [Member] | Fixed Income Securities Bond Fund [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>14</Id>
          <Labels>
            <Label Id="1" Label="Level 2 [Member]" />
            <Label Id="2" Label="Fixed Income Securities Bond Fund [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 2 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel2Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Fixed Income Securities Bond Fund [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_BondFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>208</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>209</Id>
      <Label>Level 2 [Member] | U.S. stock funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>15</Id>
          <Labels>
            <Label Id="1" Label="Level 2 [Member]" />
            <Label Id="2" Label="U.S. stock funds [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 2 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel2Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>U.S. stock funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_EquitySecuritiesMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>224</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>225</Id>
      <Label>Level 2 [Member] | International stock funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>16</Id>
          <Labels>
            <Label Id="1" Label="Level 2 [Member]" />
            <Label Id="2" Label="International stock funds [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 2 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel2Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>International stock funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_InternationalStockFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>240</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>241</Id>
      <Label>Level 2 [Member] | Global real estate funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>17</Id>
          <Labels>
            <Label Id="1" Label="Level 2 [Member]" />
            <Label Id="2" Label="Global real estate funds [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 2 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel2Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Global real estate funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_RealEstateMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>256</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>257</Id>
      <Label>Level 2 [Member] | Total equity securities [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>18</Id>
          <Labels>
            <Label Id="1" Label="Level 2 [Member]" />
            <Label Id="2" Label="Total equity securities [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 2 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel2Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total equity securities [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_ExchangeTradedFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>272</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>273</Id>
      <Label>Level 2 [Member] | Alternatives [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>19</Id>
          <Labels>
            <Label Id="1" Label="Level 2 [Member]" />
            <Label Id="2" Label="Alternatives [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 2 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel2Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Alternatives [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_AlternativesMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>288</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[2]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>289</Id>
      <Label>Level 2 [Member] | Total fair value [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>20</Id>
          <Labels>
            <Label Id="1" Label="Level 2 [Member]" />
            <Label Id="2" Label="Total fair value [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 2 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel2Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total fair value [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_TotalFairValueMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>304</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>305</Id>
      <Label>Level 2 [Member] | Insurance contract [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>21</Id>
          <Labels>
            <Label Id="1" Label="Level 2 [Member]" />
            <Label Id="2" Label="Insurance contract [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 2 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel2Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Insurance contract [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_InsuranceContractsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>320</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>321</Id>
      <Label>Level 2 [Member] | Total plan assets [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>22</Id>
          <Labels>
            <Label Id="1" Label="Level 2 [Member]" />
            <Label Id="2" Label="Total plan assets [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 2 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel2Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total plan assets [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_TotalPlanAssetsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>336</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>337</Id>
      <Label>Level 3 [Member] | Cash and Cash Equivalents [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>23</Id>
          <Labels>
            <Label Id="1" Label="Level 3 [Member]" />
            <Label Id="2" Label="Cash and Cash Equivalents [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 3 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel3Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Cash and Cash Equivalents [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_CashAndCashEquivalentsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>352</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>353</Id>
      <Label>Level 3 [Member] | Fixed Income Securities Bond Fund [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>24</Id>
          <Labels>
            <Label Id="1" Label="Level 3 [Member]" />
            <Label Id="2" Label="Fixed Income Securities Bond Fund [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 3 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel3Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Fixed Income Securities Bond Fund [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_BondFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>368</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>369</Id>
      <Label>Level 3 [Member] | U.S. stock funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>25</Id>
          <Labels>
            <Label Id="1" Label="Level 3 [Member]" />
            <Label Id="2" Label="U.S. stock funds [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 3 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel3Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>U.S. stock funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_EquitySecuritiesMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>384</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>385</Id>
      <Label>Level 3 [Member] | International stock funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>26</Id>
          <Labels>
            <Label Id="1" Label="Level 3 [Member]" />
            <Label Id="2" Label="International stock funds [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 3 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel3Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>International stock funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_InternationalStockFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>400</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>401</Id>
      <Label>Level 3 [Member] | Global real estate funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>27</Id>
          <Labels>
            <Label Id="1" Label="Level 3 [Member]" />
            <Label Id="2" Label="Global real estate funds [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 3 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel3Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Global real estate funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_RealEstateMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>416</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>417</Id>
      <Label>Level 3 [Member] | Total equity securities [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>28</Id>
          <Labels>
            <Label Id="1" Label="Level 3 [Member]" />
            <Label Id="2" Label="Total equity securities [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 3 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel3Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total equity securities [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_ExchangeTradedFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>432</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>433</Id>
      <Label>Level 3 [Member] | Alternatives [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>29</Id>
          <Labels>
            <Label Id="1" Label="Level 3 [Member]" />
            <Label Id="2" Label="Alternatives [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 3 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel3Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Alternatives [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_AlternativesMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>448</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>7000000</NumericAmount>
          <RoundedNumericAmount>7</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[2]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>449</Id>
      <Label>Level 3 [Member] | Total fair value [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>30</Id>
          <Labels>
            <Label Id="1" Label="Level 3 [Member]" />
            <Label Id="2" Label="Total fair value [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 3 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel3Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total fair value [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_TotalFairValueMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>464</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>7000000</NumericAmount>
          <RoundedNumericAmount>7</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>465</Id>
      <Label>Level 3 [Member] | Insurance contract [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>31</Id>
          <Labels>
            <Label Id="1" Label="Level 3 [Member]" />
            <Label Id="2" Label="Insurance contract [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 3 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel3Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Insurance contract [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_InsuranceContractsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>480</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>15000000</NumericAmount>
          <RoundedNumericAmount>15</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>481</Id>
      <Label>Level 3 [Member] | Total plan assets [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>32</Id>
          <Labels>
            <Label Id="1" Label="Level 3 [Member]" />
            <Label Id="2" Label="Total plan assets [Member]" />
            <Label Id="3" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Level 3 [Member]</ValueName>
              <ValueType>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_FairValueInputsLevel3Member</Id>
                <dimensionId>us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total plan assets [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_TotalPlanAssetsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>496</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>22000000</NumericAmount>
          <RoundedNumericAmount>22</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>497</Id>
      <Label>Cash and Cash Equivalents [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>33</Id>
          <Labels>
            <Label Id="1" Label=" Cash and Cash Equivalents [Member]" />
            <Label Id="2" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Cash and Cash Equivalents [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_CashAndCashEquivalentsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>512</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>513</Id>
      <Label>Fixed Income Securities Bond Fund [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>34</Id>
          <Labels>
            <Label Id="1" Label=" Fixed Income Securities Bond Fund [Member]" />
            <Label Id="2" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Fixed Income Securities Bond Fund [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_BondFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>528</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>11000000</NumericAmount>
          <RoundedNumericAmount>11</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>529</Id>
      <Label>U.S. stock funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>35</Id>
          <Labels>
            <Label Id="1" Label=" U.S. stock funds [Member]" />
            <Label Id="2" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>U.S. stock funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_EquitySecuritiesMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>544</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>26000000</NumericAmount>
          <RoundedNumericAmount>26</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>545</Id>
      <Label>International stock funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>36</Id>
          <Labels>
            <Label Id="1" Label=" International stock funds [Member]" />
            <Label Id="2" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>International stock funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_InternationalStockFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>560</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>12000000</NumericAmount>
          <RoundedNumericAmount>12</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>561</Id>
      <Label>Global real estate funds [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>37</Id>
          <Labels>
            <Label Id="1" Label=" Global real estate funds [Member]" />
            <Label Id="2" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Global real estate funds [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_RealEstateMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>576</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>3000000</NumericAmount>
          <RoundedNumericAmount>3</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[1]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>577</Id>
      <Label>Total equity securities [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>38</Id>
          <Labels>
            <Label Id="1" Label=" Total equity securities [Member]" />
            <Label Id="2" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total equity securities [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>us-gaap_ExchangeTradedFundsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>592</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>41000000</NumericAmount>
          <RoundedNumericAmount>41</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>593</Id>
      <Label>Alternatives [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>39</Id>
          <Labels>
            <Label Id="1" Label=" Alternatives [Member]" />
            <Label Id="2" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Alternatives [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_AlternativesMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>608</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>7000000</NumericAmount>
          <RoundedNumericAmount>7</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer>[2]</FootnoteIndexer>
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>609</Id>
      <Label>Total fair value [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>40</Id>
          <Labels>
            <Label Id="1" Label=" Total fair value [Member]" />
            <Label Id="2" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total fair value [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_TotalFairValueMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>624</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>59000000</NumericAmount>
          <RoundedNumericAmount>59</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>625</Id>
      <Label>Insurance contract [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>41</Id>
          <Labels>
            <Label Id="1" Label=" Insurance contract [Member]" />
            <Label Id="2" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Insurance contract [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_InsuranceContractsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>42</Id>
          <Labels>
            <Label Id="1" Label=" Insurance contract [Member]" />
            <Label Id="2" Label="10/3/2009" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Insurance contract [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_InsuranceContractsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>640</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>15000000</NumericAmount>
          <RoundedNumericAmount>15</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>14000000</NumericAmount>
          <RoundedNumericAmount>14</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>641</Id>
      <Label>Total plan assets [Member]</Label>
      <Level>0</Level>
      <ElementName />
      <ElementPrefix>na</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>na</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>true</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>http://www.tyson.com/role/disclosurepensionsandotherpostretirementbenefitsplanassetsdetails</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns>
        <Columns>
          <LabelColumn>false</LabelColumn>
          <Id>43</Id>
          <Labels>
            <Label Id="1" Label=" Total plan assets [Member]" />
            <Label Id="2" Label="10/2/2010" />
          </Labels>
          <CurrencyCode>USD</CurrencyCode>
          <FootnoteIndexer />
          <hasSegments>true</hasSegments>
          <hasScenarios>false</hasScenarios>
          <Segments>
            <Segment>
              <IsDefaultForEntity>false</IsDefaultForEntity>
              <Name />
              <IsFromEntityGroup>false</IsFromEntityGroup>
              <ValueName>Total plan assets [Member]</ValueName>
              <ValueType>dei_LegalEntityAxis</ValueType>
              <Namespace>xbrldi</Namespace>
              <Schema>http://xbrl.org/2006/xbrldi</Schema>
              <DimensionInfo>
                <Id>tsn_TotalPlanAssetsMember</Id>
                <dimensionId>dei_LegalEntityAxis</dimensionId>
                <type>explicitMember</type>
              </DimensionInfo>
            </Segment>
          </Segments>
          <Scenarios />
          <Units>
            <Unit>
              <UnitID>Unit12</UnitID>
              <UnitType>Standard</UnitType>
              <StandardMeasure>
                <MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema>
                <MeasureValue>USD</MeasureValue>
                <MeasureNamespace>iso4217</MeasureNamespace>
              </StandardMeasure>
              <Scale>0</Scale>
            </Unit>
          </Units>
          <CurrencySymbol>$</CurrencySymbol>
        </Columns>
      </OriginalInstanceReportColumns>
      <ElementDataType />
      <SimpleDataType>na</SimpleDataType>
      <ElementDefenition>No definition available.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>656</Id>
      <Label>Defined Benefit Pension Plan Assets</Label>
      <Level>2</Level>
      <ElementName>us-gaap_DefinedBenefitPlanFairValueOfPlanAssets</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
      <IsEndingBalance>false</IsEndingBalance>
      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>verboselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
      <Cells>
        <Cell>
          <Id>1</Id>
          <ShowCurrencySymbol>true</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>74000000</NumericAmount>
          <RoundedNumericAmount>74</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>0</NumericAmount>
          <RoundedNumericAmount>0</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
  </Rows>
  <Footnotes>
    <Footnote>
      <NoteId>1</NoteId>
      <Note>Valued using quoted market prices in active markets. </Note>
    </Footnote>
    <Footnote>
      <NoteId>2</NoteId>
      <Note>Valued using plan's own assumptions about the assumptions market participants would use in pricing the assets based on the best information available, such as investment manager pricing. </Note>
    </Footnote>
  </Footnotes>
  <NumberOfCols>2</NumberOfCols>
  <NumberOfRows>95</NumberOfRows>
  <HasScenarios>false</HasScenarios>
  <MonetaryRoundingLevel>Millions</MonetaryRoundingLevel>
  <SharesRoundingLevel>UnKnown</SharesRoundingLevel>
  <PerShareRoundingLevel>UnKnown</PerShareRoundingLevel>
  <HasPureData>false</HasPureData>
  <SharesShouldBeRounded>true</SharesShouldBeRounded>
</InstanceReport>
