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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014	Sep. 27, 2014
Income Tax Disclosure [Abstract]
Effective tax rate for continuing operations	35.60%us-gaap_EffectiveIncomeTaxRateContinuingOperations	38.30%us-gaap_EffectiveIncomeTaxRateContinuingOperations	32.40%us-gaap_EffectiveIncomeTaxRateContinuingOperations	36.20%us-gaap_EffectiveIncomeTaxRateContinuingOperations
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	3.20%tsn_UnrecognizedTaxBenefitPercentReductionResultingfromLapseofApplicableStatuteofLimitations
Unrecognized tax benefits	$ 229us-gaap_UnrecognizedTaxBenefits		$ 229us-gaap_UnrecognizedTaxBenefits		$ 272us-gaap_UnrecognizedTaxBenefits
Unrecognized tax benefits that would impact effective tax rate	200us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate		200us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate		241us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Unrecognized tax benefits, income tax penalties and interest accrued	49us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued		49us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued		54us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Unrecognized tax benefits, reductions that could result from tax audit resolutions	$ 18us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound		$ 18us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound

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Unrecognized Tax Benefit, Percent Reduction Resulting from Lapse of Applicable Statute of Limitations

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

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-Number 210

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Amount of (increase) decrease reasonably possible in the estimated upper bound of the unrecognized tax benefit for a tax position taken or expected to be taken.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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