Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Credit-related Contingent Features and Collateral (Details)

v2.4.1.9
Derivatives - Credit-related Contingent Features and Collateral (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Derivative [Line Items]  
Additional collateral required to be posted upon downgrade, one incremental notch $ 1,358bac_AdditionalCollateralEffectofDowngradebyOneIncrementalNotchAggregateFairValue
Additional collateral required to be posted upon downgrade, second incremental notch 2,714bac_AdditionalCollateralEffectofDowngradebySecondIncrementalNotchAggregateFairValue
Credit derivatives  
Derivative [Line Items]  
Derivative liability subject to unilateral termination upon downgrade, one incremental notch 1,364bac_DerivativeNetLiabilityPositionEffectofDowngradebyOneIncrementalNotchAggregateFairValueIncludingTriggeringCircumstance
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_CreditRiskContractMember
Derivative liability subject to unilateral termination upon downgrade, second incremental notch 4,724bac_DerivativeNetLiabilityPositionEffectofDowngradebySecondIncrementalNotchAggregateFairValueIncludingTriggeringCircumstance
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_CreditRiskContractMember
Collateral posted subject to unilateral termination upon downgrade, one incremental notch 1,106bac_CollateralPostedEffectofDowngradebyOneIncrementalNotchAggregateFairValueIncludingTriggeringCircumstances
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_CreditRiskContractMember
Collateral posted subject to unilateral termination upon downgrade, second incremental notch 3,922bac_CollateralPostedEffectofDowngradebySecondIncrementalNotchAggregateFairValueIncludingTriggeringCircumstance
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_CreditRiskContractMember
Bank of America, N.A. and subsidiaries  
Derivative [Line Items]  
Additional collateral required to be posted upon downgrade, one incremental notch 1,087bac_AdditionalCollateralEffectofDowngradebyOneIncrementalNotchAggregateFairValue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Additional collateral required to be posted upon downgrade, second incremental notch $ 1,877bac_AdditionalCollateralEffectofDowngradebySecondIncrementalNotchAggregateFairValue
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember