Annual report pursuant to Section 13 and 15(d)

Outstanding Loans and Leases - Credit Card and Other Consumer - Renegotiated TDRs Entered into During the Period by Program Type (Details)

v2.4.1.9
Outstanding Loans and Leases - Credit Card and Other Consumer - Renegotiated TDRs Entered into During the Period by Program Type (Details) (Consumer Portfolio Segment, USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Financing Receivable, Modifications [Line Items]      
Carrying Value $ 426us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2 $ 522us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2 $ 728us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Period for payment default after modification 12 months    
Direct/Indirect Consumer
      
Financing Receivable, Modifications [Line Items]      
Carrying Value 19us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember 		38us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember 		113us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
Percent expected to be in payment default within 12 months after modification 12.00%bac_FinancingReceivableModificationSubsequentDefaultPercentExpectedtoBeinPaymentDefaultWithin12MonthsAfterModification
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember 		   
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 5us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember 		12us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember 		35us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
Other consumer
      
Financing Receivable, Modifications [Line Items]      
Carrying Value   8us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_OtherFinancingReceivablesMember 		9us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_OtherFinancingReceivablesMember
United States | Credit Card Receivable
      
Financing Receivable, Modifications [Line Items]      
Carrying Value 301us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= country_US 		329us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= country_US 		400us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= country_US
Percent expected to be in payment default within 12 months after modification 14.00%bac_FinancingReceivableModificationSubsequentDefaultPercentExpectedtoBeinPaymentDefaultWithin12MonthsAfterModification
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= country_US 		   
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 56us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= country_US 		61us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= country_US 		203us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= country_US
Non United States | Credit Card Receivable
      
Financing Receivable, Modifications [Line Items]      
Carrying Value 106us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		147us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		206us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember
Percent expected to be in payment default within 12 months after modification 81.00%bac_FinancingReceivableModificationSubsequentDefaultPercentExpectedtoBeinPaymentDefaultWithin12MonthsAfterModification
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		   
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 200us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		236us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		298us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember
Internal Programs      
Financing Receivable, Modifications [Line Items]      
Carrying Value 206us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember 		231us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember 		331us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember
Internal Programs | Direct/Indirect Consumer      
Financing Receivable, Modifications [Line Items]      
Carrying Value 4us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember 		15us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember 		36us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember
Internal Programs | Other consumer      
Financing Receivable, Modifications [Line Items]      
Carrying Value   8us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_OtherFinancingReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember 		9us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_OtherFinancingReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember
Internal Programs | United States | Credit Card Receivable      
Financing Receivable, Modifications [Line Items]      
Carrying Value 196us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= country_US 		192us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= country_US 		248us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= country_US
Internal Programs | Non United States | Credit Card Receivable      
Financing Receivable, Modifications [Line Items]      
Carrying Value 6us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		16us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		38us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_InternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember
External Programs      
Financing Receivable, Modifications [Line Items]      
Carrying Value 113us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember 		154us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember 		185us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember
External Programs | Direct/Indirect Consumer      
Financing Receivable, Modifications [Line Items]      
Carrying Value 2us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember 		8us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember 		19us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember
External Programs | Other consumer      
Financing Receivable, Modifications [Line Items]      
Carrying Value   0us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_OtherFinancingReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember 		0us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_OtherFinancingReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember
External Programs | United States | Credit Card Receivable      
Financing Receivable, Modifications [Line Items]      
Carrying Value 105us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= country_US 		137us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= country_US 		152us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= country_US
External Programs | Non United States | Credit Card Receivable      
Financing Receivable, Modifications [Line Items]      
Carrying Value 6us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		9us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		14us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ExternalProgramsMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember
Other      
Financing Receivable, Modifications [Line Items]      
Carrying Value 107us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember 		137us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember 		212us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember
Other | Direct/Indirect Consumer      
Financing Receivable, Modifications [Line Items]      
Carrying Value 13us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember 		15us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember 		58us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_DirectandIndirectFinancingReceivableMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember
Other | Other consumer      
Financing Receivable, Modifications [Line Items]      
Carrying Value   0us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_OtherFinancingReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember 		0us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= bac_OtherFinancingReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember
Other | United States | Credit Card Receivable      
Financing Receivable, Modifications [Line Items]      
Carrying Value 0us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember
/ us-gaap_StatementGeographicalAxis
= country_US 		0us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember
/ us-gaap_StatementGeographicalAxis
= country_US 		0us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember
/ us-gaap_StatementGeographicalAxis
= country_US
Other | Non United States | Credit Card Receivable      
Financing Receivable, Modifications [Line Items]      
Carrying Value $ 94us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		$ 122us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember 		$ 154us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CreditCardReceivablesMember
/ bac_LoanRestructuringModificationNameAxis
= bac_OtherProgramMember
/ us-gaap_StatementGeographicalAxis
= bac_NonUnitedStatesMember