Annual report pursuant to Section 13 and 15(d)

Outstanding Loans and Leases - Home Loans - TDRs Entered into During the Period (Details)

v2.4.1.9
Outstanding Loans and Leases - Home Loans - TDRs Entered into During the Period (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Financing Receivable, Modifications [Line Items]      
Threshold period past due for nonperforming status of financing receivables 90 days    
Residential Portfolio Segment      
Financing Receivable, Modifications [Line Items]      
Unpaid Principal Balance $ 6,803bac_FinancingReceivableModificationsPostModificationUnpaidPrincipalBalance
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember 		$ 12,111bac_FinancingReceivableModificationsPostModificationUnpaidPrincipalBalance
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember 		$ 16,809bac_FinancingReceivableModificationsPostModificationUnpaidPrincipalBalance
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
Carrying Value 5,712us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember 		10,537us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember 		13,086us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
Pre-Modification Interest Rate 5.12%bac_FinancingReceivableModificationsPreModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember 		5.30%bac_FinancingReceivableModificationsPreModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember 		5.49%bac_FinancingReceivableModificationsPreModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
Post-Modification Interest Rate 4.73%bac_FinancingReceivableModificationsPostModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember 		4.24%bac_FinancingReceivableModificationsPostModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember 		4.66%bac_FinancingReceivableModificationsPostModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
Net Charge-offs 171us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember 		427us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember 		1,239us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
Residential Portfolio Segment | Residential Mortgage      
Financing Receivable, Modifications [Line Items]      
Threshold period considered past due after modification 90 days    
Unpaid Principal Balance 5,940bac_FinancingReceivableModificationsPostModificationUnpaidPrincipalBalance
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		11,233bac_FinancingReceivableModificationsPostModificationUnpaidPrincipalBalance
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		15,088bac_FinancingReceivableModificationsPostModificationUnpaidPrincipalBalance
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember
Carrying Value 5,120us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		10,016us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		12,228us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember
Pre-Modification Interest Rate 5.28%bac_FinancingReceivableModificationsPreModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		5.30%bac_FinancingReceivableModificationsPreModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		5.52%bac_FinancingReceivableModificationsPreModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember
Post-Modification Interest Rate 4.93%bac_FinancingReceivableModificationsPostModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		4.27%bac_FinancingReceivableModificationsPostModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		4.70%bac_FinancingReceivableModificationsPostModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember
Net Charge-offs 72us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		235us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		523us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember
Principal Forgiveness 53bac_FinancingReceivableModificationsPrincipalForgiveness
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		467bac_FinancingReceivableModificationsPrincipalForgiveness
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember 		778bac_FinancingReceivableModificationsPrincipalForgiveness
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember
Residential Portfolio Segment | Home equity lines of credit      
Financing Receivable, Modifications [Line Items]      
Unpaid Principal Balance 863bac_FinancingReceivableModificationsPostModificationUnpaidPrincipalBalance
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		878bac_FinancingReceivableModificationsPostModificationUnpaidPrincipalBalance
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		1,721bac_FinancingReceivableModificationsPostModificationUnpaidPrincipalBalance
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember
Carrying Value 592us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		521us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		858us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember
Pre-Modification Interest Rate 4.00%bac_FinancingReceivableModificationsPreModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		5.29%bac_FinancingReceivableModificationsPreModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		5.22%bac_FinancingReceivableModificationsPreModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember
Post-Modification Interest Rate 3.33%bac_FinancingReceivableModificationsPostModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		3.92%bac_FinancingReceivableModificationsPostModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		4.39%bac_FinancingReceivableModificationsPostModificationInterestRate
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember
Net Charge-offs 99us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		192us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		716us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember
Principal Forgiveness 1bac_FinancingReceivableModificationsPrincipalForgiveness
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember 		  9bac_FinancingReceivableModificationsPrincipalForgiveness
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember
Chapter Seven Bankruptcy | Residential Portfolio Segment      
Financing Receivable, Modifications [Line Items]      
Carrying Value 710us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ChapterSevenBankruptcyMember 		1,429us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ChapterSevenBankruptcyMember 		3,534us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ChapterSevenBankruptcyMember
Chapter Seven Bankruptcy | Residential Portfolio Segment | Residential Mortgage      
Financing Receivable, Modifications [Line Items]      
Carrying Value 521us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ChapterSevenBankruptcyMember 		1,151us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ChapterSevenBankruptcyMember 		2,936us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialMortgageMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ChapterSevenBankruptcyMember
Chapter Seven Bankruptcy | Residential Portfolio Segment | Home equity lines of credit      
Financing Receivable, Modifications [Line Items]      
Carrying Value $ 189us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ChapterSevenBankruptcyMember 		$ 278us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ChapterSevenBankruptcyMember 		$ 598us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ bac_FinancingReceivablePortfolioSegmentAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_HomeEquityMember
/ bac_LoanRestructuringModificationNameAxis
= bac_ChapterSevenBankruptcyMember
Nonperforming Financing Receivable | Chapter Seven Bankruptcy      
Financing Receivable, Modifications [Line Items]      
Threshold period past due for nonperforming status of financing receivables 90 days