2.4.0.8405150 - Disclosure - Loans and Allowance for Credit Losses, Troubled Debt Restructurings Modifications by Type (Details)truefalseIn Millions, unless otherwise specifiedfalse1falseUSDfalsefalse$FROM_Apr01_2013_TO_Jun30_2013http://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2falseUSDfalsefalse$FROM_Apr01_2012_TO_Jun30_2012http://www.sec.gov/CIK0000072971duration2012-04-01T00:00:002012-06-30T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3falseUSDfalsefalse$FROM_Jan01_2013_TO_Jun30_2013http://www.sec.gov/CIK0000072971duration2013-01-01T00:00:002013-06-30T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4falseUSDfalsefalse$FROM_Jan01_2012_TO_Jun30_2012http://www.sec.gov/CIK0000072971duration2012-01-01T00:00:002012-06-30T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true4wfc_PrimaryModificationTypeAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse02false5wfc_RecordedInvestmentAmountAfterLoanModificationToPrincipalwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse312000000312USD$falsetruefalse2truefalsefalse381000000381USD$falsetruefalse3truefalsefalse723000000723USD$falsetruefalse4truefalsefalse713000000713USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans with principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, or principal that has been legally separated and deferred to the end of the loan with a zero percent contractual interest rate.No definition available.false23false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse590000000590USD$falsefalsefalse2truefalsefalse434000000434USD$falsefalsefalse3truefalsefalse12130000001213USD$falsefalsefalse4truefalsefalse956000000956USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to a contractual reduction in the loan's interest rate.No definition available.false24false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateConcessionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse15250000001525USD$falsefalsefalse2truefalsefalse13140000001314USD$falsefalsefalse3truefalsefalse39910000003991USD$falsefalsefalse4truefalsefalse31430000003143USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans modified to an interest rate that is not commensurate with the credit risk, but excludes principal modifications and modifications to reduce the interest rate.No definition available.false25false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse24270000002427USD$falsefalsefalse2truefalsefalse21290000002129USD$falsefalsefalse3truefalsefalse59270000005927USD$falsefalsefalse4truefalsefalse48120000004812USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true26true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse07false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse5800000058USD$falsefalsefalse2truefalsefalse137000000137USD$falsefalsefalse3truefalsefalse188000000188USD$falsefalsefalse4truefalsefalse222000000222USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
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available.false215false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse788000000788USD$falsefalsefalse2truefalsefalse10810000001081USD$falsefalsefalse3truefalsefalse18270000001827USD$falsefalsefalse4truefalsefalse21440000002144USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true216true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse017false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse10000001USD$falsefalsefalse2truefalsefalse4200000042USD$falsefalsefalse3truefalsefalse1100000011USD$falsefalsefalse4truefalsefalse5300000053USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
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amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true226true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse027false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse2300000023USD$falsefalsefalse3truefalsefalse10000001USD$falsefalsefalse4truefalsefalse2600000026USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
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It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false029false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse1600000016USD$falsefalsefalse2truefalsefalse1400000014USD$falsefalsefalse3truefalsefalse8300000083USD$falsefalsefalse4truefalsefalse2300000023USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition 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amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true236true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse037false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse10000001USD$falsefalsefalse2truefalsefalse1400000014USD$falsefalsefalse3truefalsefalse60000006USD$falsefalsefalse4truefalsefalse1400000014USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
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of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true246true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse047false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse50000005USD$falsefalsefalse3truefalsefalse40000004USD$falsefalsefalse4truefalsefalse1300000013USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
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It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false049false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse30000003USD$falsefalsefalse2truefalsefalse50000005USD$falsefalsefalse3truefalsefalse30000003USD$falsefalsefalse4truefalsefalse60000006USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition available.false250false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse21falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_FinancingReceivableTroubledDebtRestructuringAxis_FinanceLeasesFinancingReceivableMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseLease Financing [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FinanceLeasesFinancingReceivableMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse051true4wfc_PrimaryModificationTypeAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse052false5wfc_RecordedInvestmentAmountAfterLoanModificationToPrincipalwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans with principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, or principal that has been legally separated and deferred to the end of the loan with a zero percent contractual interest rate.No definition available.false253false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to a contractual reduction in the loan's interest rate.No definition available.false254false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateConcessionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse10000001USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse20000002USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans modified to an interest rate that is not commensurate with the credit risk, but excludes principal modifications and modifications to reduce the interest rate.No definition available.false255false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse10000001USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse20000002USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true256true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse057false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
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It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false059false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition available.false260false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse25falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_FinancingReceivableTroubledDebtRestructuringAxis_ForeignLoansMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseForeign Loans [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldiwfc_ForeignLoansMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse061true4wfc_PrimaryModificationTypeAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse062false5wfc_RecordedInvestmentAmountAfterLoanModificationToPrincipalwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse1500000015USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans with principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, or principal that has been legally separated and deferred to the end of the loan with a zero percent contractual interest rate.No definition available.false263false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to a contractual reduction in the loan's interest rate.No definition available.false264false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateConcessionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse20000002USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans modified to an interest rate that is not commensurate with the credit risk, but excludes principal modifications and modifications to reduce the interest rate.No definition available.false265false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse1500000015USD$falsefalsefalse4truefalsefalse20000002USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true266true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse067false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
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It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false069false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition 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available.false275false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse16390000001639USD$falsefalsefalse2truefalsefalse10480000001048USD$falsefalsefalse3truefalsefalse41000000004100USD$falsefalsefalse4truefalsefalse26680000002668USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true276true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse077false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse5700000057USD$falsefalsefalse2truefalsefalse9500000095USD$falsefalsefalse3truefalsefalse177000000177USD$falsefalsefalse4truefalsefalse169000000169USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
false278false5wfc_WeightedAverageRateReductionRelatedToLoanModificationswfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.03320.0332falsefalsefalse2truetruefalse0.03880.0388falsefalsefalse3truetruefalse0.03180.0318falsefalsefalse4truetruefalse0.03900.0390falsefalsefalsenum:percentItemTypepureAmount of weighted average reduction for those loan modifications involving interest rate reductions expressed as a percentage. It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false079false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse685000000685USD$falsefalsefalse2truefalsefalse655000000655USD$falsefalsefalse3truefalsefalse14340000001434USD$falsefalsefalse4truefalsefalse13750000001375USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition available.false280false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse33falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_FinancingReceivableTroubledDebtRestructuringAxis_FirstMortgageMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseReal estate 1-4 family first mortgage [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FirstMortgageMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse081true4wfc_PrimaryModificationTypeAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse082false5wfc_RecordedInvestmentAmountAfterLoanModificationToPrincipalwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse282000000282USD$falsefalsefalse2truefalsefalse348000000348USD$falsefalsefalse3truefalsefalse626000000626USD$falsefalsefalse4truefalsefalse654000000654USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans with principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, or principal that has been legally separated and deferred to the end of the loan with a zero percent contractual interest rate.No definition available.false283false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse378000000378USD$falsefalsefalse2truefalsefalse207000000207USD$falsefalsefalse3truefalsefalse757000000757USD$falsefalsefalse4truefalsefalse504000000504USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to a contractual reduction in the loan's interest rate.No definition available.false284false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateConcessionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse715000000715USD$falsefalsefalse2truefalsefalse173000000173USD$falsefalsefalse3truefalsefalse20960000002096USD$falsefalsefalse4truefalsefalse372000000372USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans modified to an interest rate that is not commensurate with the credit risk, but excludes principal modifications and modifications to reduce the interest rate.No definition available.false285false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse13750000001375USD$falsefalsefalse2truefalsefalse728000000728USD$falsefalsefalse3truefalsefalse34790000003479USD$falsefalsefalse4truefalsefalse15300000001530USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true286true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse087false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse4800000048USD$falsefalsefalse2truefalsefalse7400000074USD$falsefalsefalse3truefalsefalse145000000145USD$falsefalsefalse4truefalsefalse133000000133USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
false288false5wfc_WeightedAverageRateReductionRelatedToLoanModificationswfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.02710.0271falsefalsefalse2truetruefalse0.03000.0300falsefalsefalse3truetruefalse0.02560.0256falsefalsefalse4truetruefalse0.02910.0291falsefalsefalsenum:percentItemTypepureAmount of weighted average reduction for those loan modifications involving interest rate reductions expressed as a percentage. It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false089false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse563000000563USD$falsefalsefalse2truefalsefalse502000000502USD$falsefalsefalse3truefalsefalse11860000001186USD$falsefalsefalse4truefalsefalse10420000001042USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition 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[Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SecondMortgageMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse091true4wfc_PrimaryModificationTypeAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse092false5wfc_RecordedInvestmentAmountAfterLoanModificationToPrincipalwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse2500000025USD$falsefalsefalse2truefalsefalse1400000014USD$falsefalsefalse3truefalsefalse5200000052USD$falsefalsefalse4truefalsefalse3300000033USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans with principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, or principal that has been legally separated and deferred to the end of the loan with a zero percent contractual interest rate.No definition available.false293false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse4600000046USD$falsefalsefalse2truefalsefalse6700000067USD$falsefalsefalse3truefalsefalse9400000094USD$falsefalsefalse4truefalsefalse137000000137USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to a contractual reduction in the loan's interest rate.No definition available.false294false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateConcessionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse9000000090USD$falsefalsefalse2truefalsefalse3500000035USD$falsefalsefalse3truefalsefalse258000000258USD$falsefalsefalse4truefalsefalse6900000069USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans modified to an interest rate that is not commensurate with the credit risk, but excludes principal modifications and modifications to reduce the interest rate.No definition available.false295false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse161000000161USD$falsefalsefalse2truefalsefalse116000000116USD$falsefalsefalse3truefalsefalse404000000404USD$falsefalsefalse4truefalsefalse239000000239USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true296true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse097false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse10000001USD$falsefalsefalse2truefalsefalse70000007USD$falsefalsefalse3truefalsefalse1600000016USD$falsefalsefalse4truefalsefalse1600000016USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
false298false5wfc_WeightedAverageRateReductionRelatedToLoanModificationswfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.03240.0324falsefalsefalse2truetruefalse0.03660.0366falsefalsefalse3truetruefalse0.03240.0324falsefalsefalse4truetruefalse0.03850.0385falsefalsefalsenum:percentItemTypepureAmount of weighted average reduction for those loan modifications involving interest rate reductions expressed as a percentage. It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false099false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse7000000070USD$falsefalsefalse2truefalsefalse7900000079USD$falsefalsefalse3truefalsefalse142000000142USD$falsefalsefalse4truefalsefalse165000000165USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition available.false2100false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse41falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_FinancingReceivableTroubledDebtRestructuringAxis_CreditCardReceivablesMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseCredit Card [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CreditCardReceivablesMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0101true4wfc_PrimaryModificationTypeAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0102false5wfc_RecordedInvestmentAmountAfterLoanModificationToPrincipalwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans with principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, or principal that has been legally separated and deferred to the end of the loan with a zero percent contractual interest rate.No definition available.false2103false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse4600000046USD$falsefalsefalse2truefalsefalse5900000059USD$falsefalsefalse3truefalsefalse9200000092USD$falsefalsefalse4truefalsefalse133000000133USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to a contractual reduction in the loan's interest rate.No definition available.false2104false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateConcessionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans modified to an interest rate that is not commensurate with the credit risk, but excludes principal modifications and modifications to reduce the interest rate.No definition available.false2105false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse4600000046USD$falsefalsefalse2truefalsefalse5900000059USD$falsefalsefalse3truefalsefalse9200000092USD$falsefalsefalse4truefalsefalse133000000133USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true2106true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0107false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
false2108false5wfc_WeightedAverageRateReductionRelatedToLoanModificationswfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.10530.1053falsefalsefalse2truetruefalse0.10750.1075falsefalsefalse3truetruefalse0.10630.1063falsefalsefalse4truetruefalse0.10820.1082falsefalsefalsenum:percentItemTypepureAmount of weighted average reduction for those loan modifications involving interest rate reductions expressed as a percentage. It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false0109false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse4600000046USD$falsefalsefalse2truefalsefalse5900000059USD$falsefalsefalse3truefalsefalse9200000092USD$falsefalsefalse4truefalsefalse133000000133USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition available.false2110false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse45falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_FinancingReceivableTroubledDebtRestructuringAxis_ConsumerLoansAutoFinancingReceivableMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseAutomobile [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ConsumerLoansAutoFinancingReceivableMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0111true4wfc_PrimaryModificationTypeAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0112false5wfc_RecordedInvestmentAmountAfterLoanModificationToPrincipalwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse10000001USD$falsefalsefalse2truefalsefalse20000002USD$falsefalsefalse3truefalsefalse20000002USD$falsefalsefalse4truefalsefalse40000004USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans with principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, or principal that has been legally separated and deferred to the end of the loan with a zero percent contractual interest rate.No definition available.false2113false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse20000002USD$falsefalsefalse2truefalsefalse1300000013USD$falsefalsefalse3truefalsefalse80000008USD$falsefalsefalse4truefalsefalse3200000032USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to a contractual reduction in the loan's interest rate.No definition available.false2114false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateConcessionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse2400000024USD$falsefalsefalse2truefalsefalse3400000034USD$falsefalsefalse3truefalsefalse4800000048USD$falsefalsefalse4truefalsefalse5700000057USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans modified to an interest rate that is not commensurate with the credit risk, but excludes principal modifications and modifications to reduce the interest rate.No definition available.false2115false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse2700000027USD$falsefalsefalse2truefalsefalse4900000049USD$falsefalsefalse3truefalsefalse5800000058USD$falsefalsefalse4truefalsefalse9300000093USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true2116true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0117false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse80000008USD$falsefalsefalse2truefalsefalse1300000013USD$falsefalsefalse3truefalsefalse1600000016USD$falsefalsefalse4truefalsefalse1900000019USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
false2118false5wfc_WeightedAverageRateReductionRelatedToLoanModificationswfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.08770.0877falsefalsefalse2truetruefalse0.07650.0765falsefalsefalse3truetruefalse0.07000.0700falsefalsefalse4truetruefalse0.07560.0756falsefalsefalsenum:percentItemTypepureAmount of weighted average reduction for those loan modifications involving interest rate reductions expressed as a percentage. It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false0119false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse20000002USD$falsefalsefalse2truefalsefalse1400000014USD$falsefalsefalse3truefalsefalse80000008USD$falsefalsefalse4truefalsefalse3400000034USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition available.false2120false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse49falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_FinancingReceivableTroubledDebtRestructuringAxis_ConsumerLoanMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseOther revolving credit and installment [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ConsumerLoanMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0121true4wfc_PrimaryModificationTypeAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0122false5wfc_RecordedInvestmentAmountAfterLoanModificationToPrincipalwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans with principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, or principal that has been legally separated and deferred to the end of the loan with a zero percent contractual interest rate.No definition available.false2123false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse40000004USD$falsefalsefalse2truefalsefalse10000001USD$falsefalsefalse3truefalsefalse60000006USD$falsefalsefalse4truefalsefalse10000001USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to a contractual reduction in the loan's interest rate.No definition available.false2124false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateConcessionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse40000004USD$falsefalsefalse2truefalsefalse10000001USD$falsefalsefalse3truefalsefalse70000007USD$falsefalsefalse4truefalsefalse10000001USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans modified to an interest rate that is not commensurate with the credit risk, but excludes principal modifications and modifications to reduce the interest rate.No definition available.false2125false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse80000008USD$falsefalsefalse2truefalsefalse20000002USD$falsefalsefalse3truefalsefalse1300000013USD$falsefalsefalse4truefalsefalse20000002USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true2126true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0127false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse10000001USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse10000001USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
false2128false5wfc_WeightedAverageRateReductionRelatedToLoanModificationswfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.05310.0531falsefalsefalse2truetruefalse0.04720.0472falsefalsefalse3truetruefalse0.04800.0480falsefalsefalse4truetruefalse0.04720.0472falsefalsefalsenum:percentItemTypepureAmount of weighted average reduction for those loan modifications involving interest rate reductions expressed as a percentage. It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false0129false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse40000004USD$falsefalsefalse2truefalsefalse10000001USD$falsefalsefalse3truefalsefalse60000006USD$falsefalsefalse4truefalsefalse10000001USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition available.false2130false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse53falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_FinancingReceivableTroubledDebtRestructuringAxis_TrialModificationsMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseTrial modifications [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldiwfc_TrialModificationsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0131true4wfc_PrimaryModificationTypeAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0132false5wfc_RecordedInvestmentAmountAfterLoanModificationToPrincipalwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans with principal forgiveness at the time of the modification, contingent principal forgiveness granted over the life of the loan based on borrower performance, or principal that has been legally separated and deferred to the end of the loan with a zero percent contractual interest rate.No definition available.false2133false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to a contractual reduction in the loan's interest rate.No definition available.false2134false5wfc_RecordedInvestmentAmountAfterLoanModificationRelatedToInterestRateConcessionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse2200000022USD$falsefalsefalse2truefalsefalse9400000094USD$falsefalsefalse3truefalsefalse5400000054USD$falsefalsefalse4truefalsefalse671000000671USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment after modification related to loans modified to an interest rate that is not commensurate with the credit risk, but excludes principal modifications and modifications to reduce the interest rate.No definition available.false2135false5wfc_RecordedInvestmentAmountOfLoansModifiedwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse2200000022USD$falsefalsefalse2truefalsefalse9400000094USD$falsefalsefalse3truefalsefalse5400000054USD$falsefalsefalse4truefalsefalse671000000671USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified in troubled debt restructurings after the financing receivable has been modified.No definition available.true2136true4wfc_FinancialEffectsOfModificationsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0137false5us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDownus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryReflects the amount of the write-down related to a troubled debt restructuring.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554
false2138false5wfc_WeightedAverageRateReductionRelatedToLoanModificationswfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse00falsefalsefalse2truetruefalse00falsefalsefalse3truetruefalse00falsefalsefalse4truetruefalse00falsefalsefalsenum:percentItemTypepureAmount of weighted average reduction for those loan modifications involving interest rate reductions expressed as a percentage. It is calculated as the difference between the interest rate immediately prior to the loan modification and the rate immediately after the loan modification, weighted based on recorded investment of the loan.No definition available.false0139false5wfc_RecordedInvestmentOfLoansModifiedByInterestRateReductionwfc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsetruefalse2truefalsefalse00USD$falsetruefalse3truefalsefalse00USD$falsetruefalse4truefalsefalse00USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount of outstanding recorded investment for financing receivables that have been classified as troubled debt restructurings that included a reduction of interest rate.No definition available.false2falseLoans and Allowance for Credit Losses, Troubled Debt Restructurings Modifications by Type (Details) (USD $)MillionsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://wellsfargo.com/role/DisclosureLoansAndAllowanceForCreditLossesTroubledDebtRestructuringsModificationsByTypeDetails4139
