Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Amounts Recognized on the Balance Sheet (Details)

v2.4.1.9
Employee Benefit Plans - Amounts Recognized on the Balance Sheet (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Qualified Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Other assets $ 3,106us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_QualifiedPensionPlansMember
$ 4,131us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_QualifiedPensionPlansMember
Accrued expenses and other liabilities 0us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_QualifiedPensionPlansMember
0us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_QualifiedPensionPlansMember
Net amount recognized at December 31 3,106us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_QualifiedPensionPlansMember
4,131us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_QualifiedPensionPlansMember
Non-U.S. Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Other assets 252us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_ForeignPensionPlansDefinedBenefitMember
205us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_ForeignPensionPlansDefinedBenefitMember
Accrued expenses and other liabilities (376)us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_ForeignPensionPlansDefinedBenefitMember
(328)us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_ForeignPensionPlansDefinedBenefitMember
Net amount recognized at December 31 (124)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_ForeignPensionPlansDefinedBenefitMember
(123)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_ForeignPensionPlansDefinedBenefitMember
Nonqualified and Other Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Other assets 786us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_NonqualifiedAndOtherPensionPlansMember
777us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_NonqualifiedAndOtherPensionPlansMember
Accrued expenses and other liabilities (1,188)us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_NonqualifiedAndOtherPensionPlansMember
(1,127)us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_NonqualifiedAndOtherPensionPlansMember
Net amount recognized at December 31 (402)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_NonqualifiedAndOtherPensionPlansMember
(350)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_NonqualifiedAndOtherPensionPlansMember
Postretirement Health and Life Plans    
Defined Benefit Plan Disclosure [Line Items]    
Other assets 0us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_PostretirementHealthCoverageandLifeInsuranceMember
0us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_PostretirementHealthCoverageandLifeInsuranceMember
Accrued expenses and other liabilities (1,318)us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_PostretirementHealthCoverageandLifeInsuranceMember
(1,284)us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_PostretirementHealthCoverageandLifeInsuranceMember
Net amount recognized at December 31 $ (1,318)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_PostretirementHealthCoverageandLifeInsuranceMember
$ (1,284)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= bac_PostretirementHealthCoverageandLifeInsuranceMember