2.4.0.8412000 - Disclosure - Derivatives Textuals (Details)truefalsefalse1falseUSDfalsefalse$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$5falseUSDfalsefalse$AS_OF_Dec31_2012http://www.sec.gov/CIK0000072971instant2012-12-31T00:00:000001-01-01T00:00:00USDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true4wfc_DerivativesTextualAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse02false5wfc_BasisSwapsCombinedWithReceiveFixedRatePayFloatingRateSwapsNotionalwfc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse27000000002700000000USD$falsetruefalse2falsefalsefalse00falsefalsefalse3truefalsefalse27000000002700000000USD$falsetruefalse4falsefalsefalse00falsefalsefalse5truefalsefalse47000000004700000000USD$falsetruefalsexbrli:monetaryItemTypemonetaryBasis swaps combined with receive fixed rate pay floating rate swaps, notional.No definition available.false23false5wfc_DerivativeAssetFairValueAmountOffsetAgainstCollateralSubjectToMasterNettingArrangementswfc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse6120000000061200000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse6120000000061200000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse6890000000068900000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryFair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset offset against an obligation to return collateral.No definition available.false24false5wfc_DerivativeLiabilityFairValueAmountOffsetAgainstCollateralSubjectToMasterNettingArrangementswfc_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse6650000000066500000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse6650000000066500000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse7580000000075800000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryFair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset offset against the right to receive collateral.No definition available.false25false5us-gaap_DerivativeCreditRiskValuationAdjustmentDerivativeAssetsus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse311000000311000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse311000000311000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse352000000352000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of credit risk valuation adjustment to derivative assets to properly reflect the credit quality of the counterparties.No definition available.false26false5us-gaap_DerivativeCreditRiskValuationAdjustmentDerivativeLiabilitiesus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse8700000087000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse8700000087000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse6800000068000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of credit risk valuation adjustment to derivative liabilities to properly reflect the credit quality of the entity.No definition available.false27false5wfc_DerivativeAssetCollateralObligationToReturnCashOffsetwfc_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse54000000005400000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse54000000005400000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse50000000005000000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of obligation to return cash collateral under master netting arrangements offset against derivative assets.No definition available.false28false5wfc_DerivativeLiabilityCollateralRightToReclaimCashOffsetwfc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse1100000000011000000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse1100000000011000000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse1450000000014500000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of right to receive cash collateral under master netting arrangements offset against derivative liabilities.No definition available.false29false5us-gaap_DerivativeAssetsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse1787000000017870000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse1787000000017870000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse2381600000023816000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryFair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13495-108611
Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958
Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FIN39-1
-Paragraph 10A, 10B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 4, 17
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
false210false5us-gaap_GainLossFromComponentsExcludedFromAssessmentOfFairValueHedgeEffectivenessNetus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-1000000-1000000USD$falsefalsefalse2truefalsefalse-1000000-1000000USD$falsefalsefalse3truefalsefalse-4000000-4000000USD$falsefalsefalse4truefalsefalse-2000000-2000000USD$falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryNet gain (loss) relating to components of the gain (loss) on the fair value hedging instrument excluded from the assessment of fair value hedge effectiveness. Recognized in earnings.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph a(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986
false211false5us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonthsus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse309000000309000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph b(2)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
false212false5us-gaap_MaximumLengthOfTimeHedgedInCashFlowHedge1us-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse005 yearsfalsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaMaximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994
false013false5us-gaap_GainLossFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectivenessNetus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse00USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3truefalsefalse00USD$falsefalsefalse4truefalsefalse00USD$falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe net gain (loss) relating to components of the gain (loss) on the cash flow hedging instrument excluded from the assessment of cash flow hedge effectiveness. Recognized in earnings.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph b(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959
false214false5wfc_NetDerivativeGainsLossesFromEconomicHedgesRelatedToMortgageServicingActivitieswfc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-1799000000-1799000000USD$falsefalsefalse2truefalsefalse20080000002008000000USD$falsefalsefalse3truefalsefalse-2431000000-2431000000USD$falsefalsefalse4truefalsefalse21080000002108000000USD$falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryNet derivative gains (losses) from economic hedges related to mortgage servicing activities.No definition available.false215false5wfc_FairValueOfNetAssetLiabilityFromEconomicHedgesRelatedToMortgageServicingActivitieswfc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-1500000000-1500000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse-1500000000-1500000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse8700000087000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAggregate fair value of derivatives used for economic hedges net asset (liability).No definition available.false216false5wfc_AggregateFairValueOfDerivativeLoanCommitmentsNetAssetLiabilitywfc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse-615000000-615000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse-615000000-615000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse497000000497000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAggregate fair value of derivative loan commitments net asset (liability).No definition available.false217false5us-gaap_DerivativeNetLiabilityPositionAggregateFairValueus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse1500000000015000000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse1500000000015000000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse1620000000016200000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624258-113959
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44D
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
false218false5us-gaap_CollateralAlreadyPostedAggregateFairValueus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse1130000000011300000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse1130000000011300000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse1430000000014300000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44D
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624258-113959
false219false5us-gaap_AdditionalCollateralAggregateFairValueus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse38000000003800000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse38000000003800000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse19000000001900000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624258-113959
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44D
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
false220false5wfc_DerivativeAssetNotSubjectToEnforceableMasterNettingArrangementwfc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse1520000000015200000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse1520000000015200000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse1700000000017000000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryFair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, not subject to a master netting arrangement. Amounts include balances related to counterparties that are not subject to a master netting arrangement and counterparties that are subject to a master netting arrangement for which we have not sought or obtained a legal opinion for the enforceability of netting under those agreements.No definition available.false221false5wfc_DerivativeLiabilityNotSubjectToEnforceableMasterNettingArrangementwfc_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse87000000008700000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse87000000008700000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse73000000007300000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryFair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, not subject to a master netting arrangement. Amounts include balances related to counterparties that are not subject to a master netting arrangement and counterparties that are subject to a master netting arrangement .for which we have not sought or obtained a legal opinion for the enforceability of netting under those agreements.No definition available.false222false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falseUSDtruefalse$AS_OF_Jun30_2013_us-gaap_BalanceSheetLocationAxis_TradingAccountAssetsMemberhttp://www.sec.gov/CIK0000072971instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseTrading assets [Member]us-gaap_BalanceSheetLocationAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_TradingAccountAssetsMemberus-gaap_BalanceSheetLocationAxisexplicitMemberUSDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse023true4wfc_DerivativesTextualAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse024false5us-gaap_DerivativeAssetsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse1420000000014200000000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse1420000000014200000000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse1830000000018300000000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryFair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13495-108611
Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958
Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FIN39-1
-Paragraph 10A, 10B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 4, 17
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
false225false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse8falseUSDtruefalse$AS_OF_Jun30_2013_us-gaap_BalanceSheetLocationAxis_OtherAssets1Memberhttp://www.sec.gov/CIK0000072971instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseOther Assets [Member]us-gaap_BalanceSheetLocationAxisxbrldihttp://xbrl.org/2006/xbrldiwfc_OtherAssets1Memberus-gaap_BalanceSheetLocationAxisexplicitMemberUSDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse026true4wfc_DerivativesTextualAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse027false5us-gaap_DerivativeAssetsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse37000000003700000000USD$falsetruefalse2falsefalsefalse00falsefalsefalse3truefalsefalse37000000003700000000USD$falsetruefalse4falsefalsefalse00falsefalsefalse5truefalsefalse55000000005500000000USD$falsetruefalsexbrli:monetaryItemTypemonetaryFair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13495-108611
Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958
Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FIN39-1
-Paragraph 10A, 10B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 4, 17
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
false2falseDerivatives Textuals (Details) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://wellsfargo.com/role/DisclosureDerivativesTextualsDetails527
