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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524
false246false0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse29falseUSDtruefalse$AS_OF_Jun30_2013_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_ForeignLoansMember_wfc_FinancingReceivableAcquiredWithDeterioratedCreditQualityAxis_FinancingReceivableAcquiredWithDeterioratedCreditQualityMemberhttp://www.sec.gov/CIK0000072971instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseForeign Loans [Member]us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldiwfc_ForeignLoansMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalsePurchased Credit-Impaired Loans [Member]wfc_FinancingReceivableAcquiredWithDeterioratedCreditQualityAxisxbrldihttp://xbrl.org/2006/xbrldiwfc_FinancingReceivableAcquiredWithDeterioratedCreditQualityMemberwfc_FinancingReceivableAcquiredWithDeterioratedCreditQualityAxisexplicitMemberUSDollarStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse047true4wfc_PurchasedCreditImpairedLoansCommercialDaysPastDueAbstractwfc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse048false5us-gaap_FinancingReceivableRecordedInvestmentCurrentus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse540000000540USD$falsefalsefalse2truefalsefalse704000000704USD$falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFinancing receivables that are current.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953401-111524
false249false5wfc_FinancingReceivableRecordedInvestment30To89DaysPastDueAndStillAccruingwfc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse1100000011USD$falsefalsefalse2truefalsefalse00USD$falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryFinancing receivables that are less than 90 days past due but more than 29 days past due and still accruing.No definition available.false250false5us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruingus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse163000000163USD$falsefalsefalse2truefalsefalse167000000167USD$falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRecorded investment in financing receivables that are 90 days or more past due and still accruing.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5111-111524
false251false5us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQualityus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse714000000714USD$falsetruefalse2truefalsefalse871000000871USD$falsetruefalse3falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe balance of financing receivables that were acquired with deteriorated credit quality.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524
false2falseLoans and Allowance for Credit Losses, PCI, by Delinquency Status, Commercial (Details) (USD $)MillionsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://wellsfargo.com/role/LoansAndAllowanceForCreditLossesPCIByDelinquencyStatusCommercialDetails351
