2.2.0.7 false FAIR VALUE MEASUREMENTS (Debt Securities) (Details) (USD $) 41203 - Disclosure - FAIR VALUE MEASUREMENTS (Debt Securities) (Details) true false In Millions false false 1 USD false false Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit13 Standard http://www.xbrl.org/2003/instance pure xbrli 0 Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 Unit14 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 2 USD false false Unit13 Standard http://www.xbrl.org/2003/instance pure xbrli 0 Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 Unit14 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 FAIR VALUE MEASUREMENTS 0 tsn_FairValueMeasurementsAbstract tsn false na duration Fair Value Measurements false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false xbrli:stringItemType string Fair Value Measurements false 3 Balance at beginning of year 1 us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue us-gaap true debit instant No definition available. false false false false false false false false true false false periodstartlabel false 1 true true false false 72000000 72 false false false 2 true true false false 54000000 54 false false false xbrli:monetaryItemType monetary This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c false 4 Included in earnings 1 us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 1000000 1 false false false 2 false true false false -4000000 -4 false false false xbrli:monetaryItemType monetary This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c(1) false 6 Purchases, issuances and settlements, net 1 us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -1000000 -1 false false false 2 false true false false 18000000 18 false false false xbrli:monetaryItemType monetary This element represents purchases, sales, issuances, and settlements (net) which have taken place during the period in relation to assets measured at fair value on a recurring basis using unobservable inputs (Level 3). 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c false 8 Total gains (losses) for the periods included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at end of year 1 us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 true true false false 0 0 false false false 2 true true false false -4000000 -4 false false false xbrli:monetaryItemType monetary This element represents the net change of assets measured at fair value on a recurring basis using unobservable inputs (Level 3) which have taken place during the period. Such net change may be comprised of changes in fair value (gains or losses) whether realized or unrealized that have been included in earnings, changed net asset value, or other comprehensive income (a separate component of shareholders' equity); purchases, sales, issuances, or settlements of assets; and net transfers in to or out of this category within the fair value hierarchy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c(1), c(2), c(3) false 2 7 false Millions UnKnown UnKnown false true