Bank of America Corporation Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Cover
- Cover Page
- Audit Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Principles (Policies)
Notes Tables
Notes Details

Securitizations and Other Variable Interest Entities - First Lien Mortgage Securitizations (Details)

v3.25.0.1

Securitizations and Other Variable Interest Entities - First Lien Mortgage Securitizations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Residential Mortgage - Agency
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Proceeds from loan sales	$ 4,459	$ 4,513	$ 8,084
Gains (losses) on securitizations	(6)	(15)	8
Repurchases from securitization trusts	36	33	53
Gain (loss) on loans securitized	33	49	41
Deconsolidation of securitizations	1,100	685	784
Commercial
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Proceeds from loan sales	13,392	2,132	5,853
Gains (losses) on securitizations	164	44	46
Repurchases from securitization trusts	0	0	0
First Lien Mortgages
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Mortgage loans serviced for investors	84,100	92,700
Servicing fees	231	248	$ 274
Transfers continuing involvement servicing fee advances	$ 1,000	$ 1,300

- Definition

Deconsolidation, Assets Deconsolidated In Period

+ References

No definition available.

+ Details

Name:	bac_DeconsolidationAssetsDeconsolidatedInPeriod
Namespace Prefix:	bac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Gain (Loss) on Loans Held-for-sale and Securitization Financial Asset For Which Transfer is Accounted as Sale Gain (Loss) on Sale

+ References

No definition available.

+ Details

Name:	bac_GainLossOnLoansHeldForSaleAndSecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale
Namespace Prefix:	bac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This represents the unpaid principal balance of mortgage loans serviced for investors at fair value.

+ References

No definition available.

+ Details

Name:	bac_ServicingAssetAtFairValueForInvestors
Namespace Prefix:	bac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the servicing advances on loans serviced, including securitizations where the entity has continuing involvement. Advance types include principal and interest (P&I), tax and insurance (T&I, also known as escrow advances) and corporate payments which are costs associated with foreclosing on and liquidating mortgage collateral.

+ References

No definition available.

+ Details

Name:	bac_TransfersContinuingInvolvementServicingFeeAdvances
Namespace Prefix:	bac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the initial fair value recorded for assets received on transfer of financial assets in a securitization, asset-backed financing arrangement, or a similar transfer which transaction is recognized as a sale of the transferred financial assets, during the period.

+ References

No definition available.

+ Details

Name:	bac_TransfersOfFinancialAssetsAccountedForAsSaleInitialFairValueOfAssetsObtainedAsProceedsInPeriod
Namespace Prefix:	bac_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Cash Flows between a transferor and a transferee attributable to purchases of previously transferred financial assets (or its underlying collateral) related to a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-3

+ Details

Name:	us-gaap_CashFlowsBetweenTransfereeAndTransferorPurchasesOfPreviouslyTransferredFinancialAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of contractually specified servicing fee, late fee, and ancillary fee recognized as income for servicing asset and servicing liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481229/860-50-50-2

+ Details

Name:	us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Reflects, by transferred financial asset type, the amount of sales proceeds in excess of or deficient from the sum of the carrying amounts of transferred financial assets plus transaction costs, including those transactions in which the seller/transferor has continuing involvement with the financial assets that have been transferred.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-3

+ Details

Name:	us-gaap_SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

Name:	us-gaap_SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_FinancialInstrumentAxis=bac_ResidentialMortgagebackedSecuritiesIssuedbyUSGovernmentSponsoredEnterprisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=bac_FirstLienMortgagesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: