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Mortgage Servicing Rights - Sensitivity Impacts (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended |
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Mar. 31, 2015
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| 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 | 226bac_SensitivityAnalysisofFairValueTransferorsInterestsinTransferredFinancialAssetsImpactof10PercentIncreaseinPrepaymentSpeed |
| Prepayment rates, impact of 20 percent increase | 482bac_SensitivityAnalysisofFairValueTransferorsInterestsinTransferredFinancialAssetsImpactof20PercentIncreaseinPrepaymentSpeed |
| Prepayment rates, impact of 10 percent decrease | (201)bac_SensitivityAnalysisofFairValueTransferorsInterestsinTransferredFinancialAssetsImpactof10PercentDecreaseinPrepaymentSpeed |
| Prepayment rates, impact of 20 percent decrease | (381)bac_SensitivityAnalysisofFairValueTransferorsInterestsinTransferredFinancialAssetsImpactof20PercentDecreaseinPrepaymentSpeed |
| OAS level, impact of 100 bps decrease | 140bac_SensitivityAnalysisofFairValueTransferorsInterestinTransferredFinancialAssetsImpactof100BasisPointsDecreaseinOptionAdjustedSpread |
| OAS level, impact of 200 bps decrease | 292bac_SensitivityAnalysisofFairValueTransferorsInterestinTransferredFinancialAssetsImpactof200BasisPointsDecreaseinOptionAdjustedSpread |
| OAS level, impact of 100 bps increase | (129)bac_SensitivityAnalysisofFairValueTransferorsInterestinTransferredFinancialAssetsImpactof100BasisPointsIncreaseinOptionAdjustedSpread |
| OAS level, impact of 200 bps increase | (249)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 12 days |
| Impact of 20 percent increase | 4 months 17 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 | 2 months 1 day |
| Impact of 20 percent increase | 3 months 25 days |
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- Definition
Sensitivity Analysis of Fair Value, Transferor's Interest in Transferred Financial Assets, Impact of 100 Basis Points Decrease in Option Adjusted Spread No definition available.
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- Definition
Sensitivity Analysis of Fair Value, Transferor's Interest in Transferred Financial Assets, Impact of 100 Basis Points Increase in Option Adjusted Spread No definition available.
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- Definition
Sensitivity Analysis of Fair Value, Transferor's Interest in Transferred Financial Assets, Impact of 10 Percent Decrease in Prepayment Weighted Average Life No definition available.
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- Definition
This represents the hypothetical impact of a 10 percent change on the fair value and weighted average lives of interests that continue to be held by the transferor, servicing assets, or servicing liabilities as of the balance sheet date. No definition available.
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- Definition
Sensitivity Analysis of Fair Value, Transferor's Interest in Transferred Financial Assets, Impact of 200 Basis Points Decrease in Option Adjusted Spread No definition available.
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- Definition
This represents the hypothetical impact of a 200bps change to the option adjusted spread level on the fair value of interests that continue to be held by the transferor, servicing assets, or servicing liabilities as of the balance sheet date. No definition available.
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- Definition
Sensitivity Analysis of Fair Value, Transferor's Interest in Transferred Financial Assets, Impact of 20 Percent Decrease in Prepayment Weighted Average Life No definition available.
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- Definition
This represents the hypothetical impact of a 20 percent change on the fair value and weighted average lives of interests that continue to be held by the transferor, servicing assets, or servicing liabilities as of the balance sheet date. No definition available.
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- Definition
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Decrease in Prepayment Speed No definition available.
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- Definition
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Increase in Prepayment Speed No definition available.
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- Definition
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Decrease in Prepayment Speed No definition available.
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- Definition
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Increase in Prepayment Speed No definition available.
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