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Regulatory Requirements and Restrictions (Details)
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Dec. 31, 2014
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Jan. 01, 2015
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Dec. 31, 2013
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| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | |||
| Tier 1 capital ratio | 4.00%us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets | ||
| Total capital ratio | 8.00%us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets | ||
| Increase in capital required for capital adequacy to reach well capitalized to risk weighted assets | 2.00%bac_IncreaseInCapitalRequiredForCapitalAdequacyToReachWellCapitalizedToRiskWeightedAssets | ||
| Subsequent Event | |||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | |||
| Tier 1 capital ratio |
6.00%us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
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| Percentage increase in Tier 1 capital ratio |
2.00%bac_BaselThreeTransitionPercentageIncreaseinTierOneBasedCapitalRequiredforCapitalAdequacytoRiskWeightedAssets / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
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| Bank of America Corporation | |||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | |||
| Tier 1 leverage required for capital adequacy |
4.00%us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
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| Tier 1 leverage ratio |
5.00%us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
5.00%us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
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| Tier 1 capital ratio |
13.40%us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
12.20%us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
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| Total capital ratio |
16.50%us-gaap_CapitalToRiskWeightedAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
15.10%us-gaap_CapitalToRiskWeightedAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
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| Tier 1 leverage ratio |
8.20%us-gaap_TierOneLeverageCapitalToAverageAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
7.70%us-gaap_TierOneLeverageCapitalToAverageAssets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
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| Bank of America, N.A. | |||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | |||
| Tier 1 leverage ratio |
5.00%us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets / dei_LegalEntityAxis = bac_SubsidiariesBankofAmericaN.A.Member |
5.00%us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets / dei_LegalEntityAxis = bac_SubsidiariesBankofAmericaN.A.Member |
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| Tier 1 capital ratio |
13.10%us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets / dei_LegalEntityAxis = bac_SubsidiariesBankofAmericaN.A.Member |
12.30%us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets / dei_LegalEntityAxis = bac_SubsidiariesBankofAmericaN.A.Member |
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| Total capital ratio |
14.60%us-gaap_CapitalToRiskWeightedAssets / dei_LegalEntityAxis = bac_SubsidiariesBankofAmericaN.A.Member |
13.80%us-gaap_CapitalToRiskWeightedAssets / dei_LegalEntityAxis = bac_SubsidiariesBankofAmericaN.A.Member |
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| Tier 1 leverage ratio |
9.60%us-gaap_TierOneLeverageCapitalToAverageAssets / dei_LegalEntityAxis = bac_SubsidiariesBankofAmericaN.A.Member |
9.20%us-gaap_TierOneLeverageCapitalToAverageAssets / dei_LegalEntityAxis = bac_SubsidiariesBankofAmericaN.A.Member |
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- Definition
Basel Three Transition, Percentage Increase in Tier One Based Capital Required for Capital Adequacy to Risk Weighted Assets No definition available.
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- Definition
Increase In Capital Required For Capital Adequacy To Reach Well Capitalized To Risk Weighted Assets No definition available.
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- Definition
The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total Capital divided by risk weighted assets as defined in the regulations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tier 1 Leverage Capital divided by average assets as defined in the regulations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tier 1 capital divided by risk weighted assets as defined by regulations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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- Details
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