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Outstanding Loans and Leases - Purchased Loans at Acquisition Date (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] | |||
| Less: Accretable yield | $ 5,608us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield | $ 6,694us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield | $ 4,644us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield |
| Federal National Mortgage Association FNMA | |||
| Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] | |||
| Contractually required payments including interest |
8,274us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition / us-gaap_LitigationCaseAxis = bac_FederalNationalMortgageAssociationFnmaMember |
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| Less: Nonaccretable difference |
2,159bac_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodNonaccretableDifference / us-gaap_LitigationCaseAxis = bac_FederalNationalMortgageAssociationFnmaMember |
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| Cash flows expected to be collected |
6,115us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition / us-gaap_LitigationCaseAxis = bac_FederalNationalMortgageAssociationFnmaMember |
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| Less: Accretable yield |
1,125us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield / us-gaap_LitigationCaseAxis = bac_FederalNationalMortgageAssociationFnmaMember |
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| Fair value of loans acquired |
$ 4,990us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue / us-gaap_LitigationCaseAxis = bac_FederalNationalMortgageAssociationFnmaMember |
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- Definition
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities. Acquired During Period, Nonaccretable Difference No definition available.
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- Definition
Amount of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of cash flows expected to be collected at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of contractually required payments receivable at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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