2.4.0.8412020 - Disclosure - Derivatives, Net Gains (Losses) in Income related to Fair Value Hedges (Details)truefalseIn Millions, unless otherwise specifiedfalse1falseUSDfalsefalse$FROM_Apr01_2013_TO_Jun30_2013http://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2falseUSDfalsefalse$FROM_Apr01_2012_TO_Jun30_2012http://www.sec.gov/CIK0000072971duration2012-04-01T00:00:002012-06-30T00:00:00USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3falseUSDfalsefalse$FROM_Jan01_2013_TO_Jun30_2013http://www.sec.gov/CIK0000072971duration2013-01-01T00:00:002013-06-30T00:00:00USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4falseUSDfalsefalse$FROM_Jan01_2012_TO_Jun30_2012http://www.sec.gov/CIK0000072971duration2012-01-01T00:00:002012-06-30T00:00:00USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true4wfc_NetGainsLossesRecognizedInIncomeStatementRelatedToDerivativesInFairValueHedgingRelationshipsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse02false5wfc_GainLossOnFairValueHedgesRecognizedInNetInterestIncomewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse328000000328USD$falsetruefalse2truefalsefalse394000000394USD$falsetruefalse3truefalsefalse669000000669USD$falsetruefalse4truefalsefalse769000000769USD$falsetruefalsexbrli:monetaryItemTypemonetaryGain (loss) on fair value hedges recognized in net interest income.No definition available.false23false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnDerivativewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-1281000000-1281USD$falsefalsefalse2truefalsefalse107000000107USD$falsefalsefalse3truefalsefalse-2268000000-2268USD$falsefalsefalse4truefalsefalse153000000153USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Derivative.No definition available.false24false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnHedgedItemwfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse11470000001147USD$falsefalsefalse2truefalsefalse110000000110USD$falsefalsefalse3truefalsefalse21100000002110USD$falsefalsefalse4truefalsefalse-52000000-52USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Hedged Item.No definition available.false25false5us-gaap_DerivativeNetHedgeIneffectivenessGainLossus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-134000000-134USD$falsefalsefalse2truefalsefalse217000000217USD$falsefalsefalse3truefalsefalse-158000000-158USD$falsefalsefalse4truefalsefalse101000000101USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe portion of a hedge deemed to be ineffective that is reflected in current period results of operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986
false26false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_DerivativeInstrumentRiskAxis_InterestRateContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_AvailableforsaleSecuritiesMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseAvailable for sale Securities [Member]us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AvailableforsaleSecuritiesMemberus-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxisexplicitMemberfalsefalseInterest Rate Contract [Member]us-gaap_DerivativeInstrumentRiskAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_InterestRateContractMemberus-gaap_DerivativeInstrumentRiskAxisexplicitMemberUSDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse07true4wfc_NetGainsLossesRecognizedInIncomeStatementRelatedToDerivativesInFairValueHedgingRelationshipsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse08false5wfc_GainLossOnFairValueHedgesRecognizedInNetInterestIncomewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-136000000-136USD$falsefalsefalse2truefalsefalse-113000000-113USD$falsefalsefalse3truefalsefalse-261000000-261USD$falsefalsefalse4truefalsefalse-225000000-225USD$falsefalsefalsexbrli:monetaryItemTypemonetaryGain (loss) on fair value hedges recognized in net interest income.No definition available.false29false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnDerivativewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse899000000899USD$falsefalsefalse2truefalsefalse-512000000-512USD$falsefalsefalse3truefalsefalse12030000001203USD$falsefalsefalse4truefalsefalse-210000000-210USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Derivative.No definition available.false210false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnHedgedItemwfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-890000000-890USD$falsefalsefalse2truefalsefalse494000000494USD$falsefalsefalse3truefalsefalse-1178000000-1178USD$falsefalsefalse4truefalsefalse198000000198USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Hedged Item.No definition available.false211false5us-gaap_DerivativeNetHedgeIneffectivenessGainLossus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse90000009USD$falsefalsefalse2truefalsefalse-18000000-18USD$falsefalsefalse3truefalsefalse2500000025USD$falsefalsefalse4truefalsefalse-12000000-12USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe portion of a hedge deemed to be ineffective that is reflected in current period results of operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986
false212false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse9falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_DerivativeInstrumentRiskAxis_ForeignExchangeContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_AvailableforsaleSecuritiesMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseAvailable for sale Securities [Member]us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AvailableforsaleSecuritiesMemberus-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxisexplicitMemberfalsefalseForeign Exchange Contract [Member]us-gaap_DerivativeInstrumentRiskAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ForeignExchangeContractMemberus-gaap_DerivativeInstrumentRiskAxisexplicitMemberUSDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse013true4wfc_NetGainsLossesRecognizedInIncomeStatementRelatedToDerivativesInFairValueHedgingRelationshipsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse014false5wfc_GainLossOnFairValueHedgesRecognizedInNetInterestIncomewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-2000000-2USD$falsefalsefalse2truefalsefalse-1000000-1USD$falsefalsefalse3truefalsefalse-2000000-2USD$falsefalsefalse4truefalsefalse-4000000-4USD$falsefalsefalsexbrli:monetaryItemTypemonetaryGain (loss) on fair value hedges recognized in net interest income.No definition available.false215false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnDerivativewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse104000000104USD$falsefalsefalse2truefalsefalse145000000145USD$falsefalsefalse3truefalsefalse312000000312USD$falsefalsefalse4truefalsefalse186000000186USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Derivative.No definition available.false216false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnHedgedItemwfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-100000000-100USD$falsefalsefalse2truefalsefalse-148000000-148USD$falsefalsefalse3truefalsefalse-303000000-303USD$falsefalsefalse4truefalsefalse-162000000-162USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Hedged Item.No definition available.false217false5us-gaap_DerivativeNetHedgeIneffectivenessGainLossus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse40000004USD$falsefalsefalse2truefalsefalse-3000000-3USD$falsefalsefalse3truefalsefalse90000009USD$falsefalsefalse4truefalsefalse2400000024USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe portion of a hedge deemed to be ineffective that is reflected in current period results of operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986
false218false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse13falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_DerivativeInstrumentRiskAxis_InterestRateContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_LongTermDebtMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseLong-term debt [Member]us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LongTermDebtMemberus-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxisexplicitMemberfalsefalseInterest Rate Contract [Member]us-gaap_DerivativeInstrumentRiskAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_InterestRateContractMemberus-gaap_DerivativeInstrumentRiskAxisexplicitMemberUSDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse019true4wfc_NetGainsLossesRecognizedInIncomeStatementRelatedToDerivativesInFairValueHedgingRelationshipsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse020false5wfc_GainLossOnFairValueHedgesRecognizedInNetInterestIncomewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse395000000395USD$falsefalsefalse2truefalsefalse447000000447USD$falsefalsefalse3truefalsefalse792000000792USD$falsefalsefalse4truefalsefalse866000000866USD$falsefalsefalsexbrli:monetaryItemTypemonetaryGain (loss) on fair value hedges recognized in net interest income.No definition available.false221false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnDerivativewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-1666000000-1666USD$falsefalsefalse2truefalsefalse12020000001202USD$falsefalsefalse3truefalsefalse-2394000000-2394USD$falsefalsefalse4truefalsefalse334000000334USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Derivative.No definition available.false222false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnHedgedItemwfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse15760000001576USD$falsefalsefalse2truefalsefalse-1014000000-1014USD$falsefalsefalse3truefalsefalse22640000002264USD$falsefalsefalse4truefalsefalse-212000000-212USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Hedged Item.No definition available.false223false5us-gaap_DerivativeNetHedgeIneffectivenessGainLossus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-90000000-90USD$falsefalsefalse2truefalsefalse188000000188USD$falsefalsefalse3truefalsefalse-130000000-130USD$falsefalsefalse4truefalsefalse122000000122USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe portion of a hedge deemed to be ineffective that is reflected in current period results of operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986
false224false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse17falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_DerivativeInstrumentRiskAxis_ForeignExchangeContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_LongTermDebtMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseLong-term debt [Member]us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_LongTermDebtMemberus-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxisexplicitMemberfalsefalseForeign Exchange Contract [Member]us-gaap_DerivativeInstrumentRiskAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ForeignExchangeContractMemberus-gaap_DerivativeInstrumentRiskAxisexplicitMemberUSDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse025true4wfc_NetGainsLossesRecognizedInIncomeStatementRelatedToDerivativesInFairValueHedgingRelationshipsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse026false5wfc_GainLossOnFairValueHedgesRecognizedInNetInterestIncomewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse6900000069USD$falsefalsefalse2truefalsefalse6000000060USD$falsefalsefalse3truefalsefalse137000000137USD$falsefalsefalse4truefalsefalse131000000131USD$falsefalsefalsexbrli:monetaryItemTypemonetaryGain (loss) on fair value hedges recognized in net interest income.No definition available.false227false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnDerivativewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-607000000-607USD$falsefalsefalse2truefalsefalse-717000000-717USD$falsefalsefalse3truefalsefalse-1380000000-1380USD$falsefalsefalse4truefalsefalse-151000000-151USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Derivative.No definition available.false228false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnHedgedItemwfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse557000000557USD$falsefalsefalse2truefalsefalse770000000770USD$falsefalsefalse3truefalsefalse13280000001328USD$falsefalsefalse4truefalsefalse122000000122USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Hedged Item.No definition available.false229false5us-gaap_DerivativeNetHedgeIneffectivenessGainLossus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-50000000-50USD$falsefalsefalse2truefalsefalse5300000053USD$falsefalsefalse3truefalsefalse-52000000-52USD$falsefalsefalse4truefalsefalse-29000000-29USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe portion of a hedge deemed to be ineffective that is reflected in current period results of operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986
false230false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse21falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_DerivativeInstrumentRiskAxis_InterestRateContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_MortgagesHeldForSaleMemberhttp://www.sec.gov/CIK0000072971duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseMortgages held for sale [Member]us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxisxbrldihttp://xbrl.org/2006/xbrldiwfc_MortgagesHeldForSaleMemberus-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxisexplicitMemberfalsefalseInterest Rate Contract [Member]us-gaap_DerivativeInstrumentRiskAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_InterestRateContractMemberus-gaap_DerivativeInstrumentRiskAxisexplicitMemberUSDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse031true4wfc_NetGainsLossesRecognizedInIncomeStatementRelatedToDerivativesInFairValueHedgingRelationshipsAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse032false5wfc_GainLossOnFairValueHedgesRecognizedInNetInterestIncomewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse20000002USD$falsefalsefalse2truefalsefalse10000001USD$falsefalsefalse3truefalsefalse30000003USD$falsefalsefalse4truefalsefalse10000001USD$falsefalsefalsexbrli:monetaryItemTypemonetaryGain (loss) on fair value hedges recognized in net interest income.No definition available.false233false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnDerivativewfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-11000000-11USD$falsefalsefalse2truefalsefalse-11000000-11USD$falsefalsefalse3truefalsefalse-9000000-9USD$falsefalsefalse4truefalsefalse-6000000-6USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Derivative.No definition available.false234false5wfc_DerivativeNetHedgeIneffectivenessGainLossComponentRecognizedOnHedgedItemwfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse40000004USD$falsefalsefalse2truefalsefalse80000008USD$falsefalsefalse3truefalsefalse-1000000-1USD$falsefalsefalse4truefalsefalse20000002USD$falsefalsefalsexbrli:monetaryItemTypemonetaryDerivative, Net Hedge Ineffectiveness Gain (Loss), Component recognized on Hedged Item.No definition available.false235false5us-gaap_DerivativeNetHedgeIneffectivenessGainLossus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-7000000-7USD$falsetruefalse2truefalsefalse-3000000-3USD$falsetruefalse3truefalsefalse-10000000-10USD$falsetruefalse4truefalsefalse-4000000-4USD$falsetruefalsexbrli:monetaryItemTypemonetaryThe portion of a hedge deemed to be ineffective that is reflected in current period results of operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986
false2falseDerivatives, Net Gains (Losses) in Income related to Fair Value Hedges (Details) (USD $)MillionsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://wellsfargo.com/role/DisclosureDerivativesNetGainsLossesInIncomeRelatedToFairValueHedgesDetails435