Annual report pursuant to Section 13 and 15(d)

Mortgage Servicing Rights - Sensitivity Impacts (Details)

v2.4.1.9
Mortgage Servicing Rights - Sensitivity Impacts (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]  
Prepayment rates, impact of 10 percent increase 232bac_SensitivityAnalysisofFairValueTransferorsInterestsinTransferredFinancialAssetsImpactof10PercentIncreaseinPrepaymentSpeed
Prepayment rates, impact of 20 percent increase 494bac_SensitivityAnalysisofFairValueTransferorsInterestsinTransferredFinancialAssetsImpactof20PercentIncreaseinPrepaymentSpeed
Prepayment rates, impact of 10 percent decrease (208)bac_SensitivityAnalysisofFairValueTransferorsInterestsinTransferredFinancialAssetsImpactof10PercentDecreaseinPrepaymentSpeed
Prepayment rates, impact of 20 percent decrease (395)bac_SensitivityAnalysisofFairValueTransferorsInterestsinTransferredFinancialAssetsImpactof20PercentDecreaseinPrepaymentSpeed
OAS level, impact of 100 bps decrease 158bac_SensitivityAnalysisofFairValueTransferorsInterestinTransferredFinancialAssetsImpactof100BasisPointsDecreaseinOptionAdjustedSpread
OAS level, impact of 200 bps decrease 329bac_SensitivityAnalysisofFairValueTransferorsInterestinTransferredFinancialAssetsImpactof200BasisPointsDecreaseinOptionAdjustedSpread
OAS level, impact of 100 bps increase (146)bac_SensitivityAnalysisofFairValueTransferorsInterestinTransferredFinancialAssetsImpactof100BasisPointsIncreaseinOptionAdjustedSpread
OAS level, impact of 200 bps increase (281)bac_SensitivityAnalysisofFairValueTransferorsInterestinTransferredFinancialAssetsImpactof200BasisPointsIncreaseinOptionAdjustedSpread
Fixed  
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]  
Impact of 10 percent decrease 2 months 23 days
Impact of 20 percent decrease 6 months
Impact of 10 percent increase 2 months 15 days
Impact of 20 percent increase 4 months 20 days
Adjustable  
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]  
Impact of 10 percent decrease 2 months 8 days
Impact of 20 percent decrease 4 months 24 days
Impact of 10 percent increase 1 month 27 days
Impact of 20 percent increase 3 months 21 days