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Loans and Allowance for Credit Losses, Loans by Loan to Value Ratio, Consumer (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]          
Total consumer PCI loans (carrying value) $ 23,320us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality $ 26,727us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality      
Loans 862,551us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome [1],[2] 822,286us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome [1],[2] 798,351us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome 769,631us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome 757,267us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Residential Mortgage [Member]          
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]          
Total consumer PCI loans (carrying value) 21,813us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		 24,223us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		      
Loans 325,103us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		 324,457us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		      
Residential Mortgage [Member] | Loans Excluding Purchased Credit-Impaired Loans [Member]          
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]          
0-60% 111,322wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioZeroToSixtyPercent
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		 87,692wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioZeroToSixtyPercent
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		      
60.01-80% 103,763wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioSixtyPointZeroOneToEightyPercent
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		 97,341wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioSixtyPointZeroOneToEightyPercent
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		      
80.01-100% 39,174wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioEightyPointZeroOneToHundredPercent
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		 47,115wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioEightyPointZeroOneToHundredPercent
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		      
100.01-120% 13,387wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioOneHundredPointZeroOneToOneHundredTwentyPercent
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		 20,670wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioOneHundredPointZeroOneToOneHundredTwentyPercent
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		      
Greater than 120% 6,914wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioGreaterThan120Percent
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		 13,675wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioGreaterThan120Percent
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		      
No LTV/CLTV available 2,462wfc_FinancingReceivableRecordedInvestmentLoanToValueAndCombinedLoanToValueRatioNotAvailable
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		 3,004wfc_FinancingReceivableRecordedInvestmentLoanToValueAndCombinedLoanToValueRatioNotAvailable
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		      
Government insured/guaranteed loans 26,268wfc_FinancingReceivableGovernmentInsuredOrGuaranteed
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		 30,737wfc_FinancingReceivableGovernmentInsuredOrGuaranteed
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		      
Loans, excluding Purchased Credit Impaired Loans 303,290us-gaap_LoansAndLeasesReceivableOtherNetOfDeferredIncome
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		 300,234us-gaap_LoansAndLeasesReceivableOtherNetOfDeferredIncome
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= us-gaap_ResidentialMortgageMember		      
Real estate 1-4 family first mortgage [Member]          
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]          
Total consumer PCI loans (carrying value) 21,712us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember		 24,100us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember		      
Loans 265,386us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember		 258,507us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember		 249,912us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember		 229,408us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember		 231,113us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
Real estate 1-4 family first mortgage [Member] | Loans Excluding Purchased Credit-Impaired Loans [Member]          
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]          
0-60% 95,719wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioZeroToSixtyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 74,047wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioZeroToSixtyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
60.01-80% 86,112wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioSixtyPointZeroOneToEightyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 80,187wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioSixtyPointZeroOneToEightyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
80.01-100% 25,170wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioEightyPointZeroOneToHundredPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 30,842wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioEightyPointZeroOneToHundredPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
100.01-120% 6,133wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioOneHundredPointZeroOneToOneHundredTwentyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 10,678wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioOneHundredPointZeroOneToOneHundredTwentyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
Greater than 120% 2,856wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioGreaterThan120Percent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 6,306wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioGreaterThan120Percent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
No LTV/CLTV available 1,416wfc_FinancingReceivableRecordedInvestmentLoanToValueAndCombinedLoanToValueRatioNotAvailable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 1,610wfc_FinancingReceivableRecordedInvestmentLoanToValueAndCombinedLoanToValueRatioNotAvailable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
Government insured/guaranteed loans 26,268wfc_FinancingReceivableGovernmentInsuredOrGuaranteed
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 30,737wfc_FinancingReceivableGovernmentInsuredOrGuaranteed
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
Loans, excluding Purchased Credit Impaired Loans 243,674us-gaap_LoansAndLeasesReceivableOtherNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 234,407us-gaap_LoansAndLeasesReceivableOtherNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FirstMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
Real estate 1-4 family junior lien mortgage [Member]          
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]          
Total consumer PCI loans (carrying value) 101us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember		 123us-gaap_FinancingReceivableAcquiredWithDeterioratedCreditQuality
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember		      
Loans 59,717us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember		 65,950us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember		 75,503us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember		 86,041us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember		 96,205us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
Real estate 1-4 family junior lien mortgage [Member] | Loans Excluding Purchased Credit-Impaired Loans [Member]          
Loans by Loan to Value, Excluding Purchased Credit Impaired Loans [Abstract]          
0-60% 15,603wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioZeroToSixtyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 13,645wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioZeroToSixtyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
60.01-80% 17,651wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioSixtyPointZeroOneToEightyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 17,154wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioSixtyPointZeroOneToEightyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
80.01-100% 14,004wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioEightyPointZeroOneToHundredPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 16,273wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioEightyPointZeroOneToHundredPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
100.01-120% 7,254wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioOneHundredPointZeroOneToOneHundredTwentyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 9,992wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioOneHundredPointZeroOneToOneHundredTwentyPercent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
Greater than 120% 4,058wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioGreaterThan120Percent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 7,369wfc_FinancingReceivableRecordedInvestmentLoanToValueRatioGreaterThan120Percent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
No LTV/CLTV available 1,046wfc_FinancingReceivableRecordedInvestmentLoanToValueAndCombinedLoanToValueRatioNotAvailable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 1,394wfc_FinancingReceivableRecordedInvestmentLoanToValueAndCombinedLoanToValueRatioNotAvailable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
Government insured/guaranteed loans 0wfc_FinancingReceivableGovernmentInsuredOrGuaranteed
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 0wfc_FinancingReceivableGovernmentInsuredOrGuaranteed
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
Loans, excluding Purchased Credit Impaired Loans $ 59,616us-gaap_LoansAndLeasesReceivableOtherNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		 $ 65,827us-gaap_LoansAndLeasesReceivableOtherNetOfDeferredIncome
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_SecondMortgageMember
/ wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationAxis
= wfc_LoansExcludingCertainLoansAcquiredInTransferWithEvidenceOfCreditDeteriorationMember		      
[1] Financial information for certain periods prior to 2014 was revised to reflect our determination that certain factoring arrangements did not qualify as loans. See Note 1 (Summary of Significant Accounting Policies) for more information.
[2] Parenthetical amounts represent assets and liabilities for which we have elected the fair value option.