XML 222 R205.htm IDEA: XBRL DOCUMENT
v3.25.1

Investment Portfolio - Government and Corporate Securities (Equity Instruments at Fair Value Through Profit or Loss) (Details) - ARS ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Disclosure Of Detailed Information About Investment Portfolio Of Government And Corporate Securities [Line Items] |  |
Equity instruments held | $ 8,904,312 | $ 8,640,277
Level 1 Fair value |  |
Disclosure Of Detailed Information About Investment Portfolio Of Government And Corporate Securities [Line Items] |  |
Equity instruments held | 8,904,312 | 8,640,277
EQUITY INSTRUMENTS AT FAIR VALUE THROUGH PROFIT OR LOSS |  |
Disclosure Of Detailed Information About Investment Portfolio Of Government And Corporate Securities [Line Items] |  |
Equity instruments held | 8,904,312 | 8,640,277
EQUITY INSTRUMENTS AT FAIR VALUE THROUGH PROFIT OR LOSS | Private Securities - In pesos |  |
Disclosure Of Detailed Information About Investment Portfolio Of Government And Corporate Securities [Line Items] |  |
Equity instruments held | 8,904,312 | 8,640,277
EQUITY INSTRUMENTS AT FAIR VALUE THROUGH PROFIT OR LOSS | Private Securities - In pesos | Mutual Funds | Level 1 Fair value |  |
Disclosure Of Detailed Information About Investment Portfolio Of Government And Corporate Securities [Line Items] |  |
Equity instruments held | 749,178 | 1,615,390
EQUITY INSTRUMENTS AT FAIR VALUE THROUGH PROFIT OR LOSS | Private Securities - In pesos | Acción BYMA- Bolsas y Mercados Argentina | Level 1 Fair value |  |
Disclosure Of Detailed Information About Investment Portfolio Of Government And Corporate Securities [Line Items] |  |
Equity instruments held | 6,062,948 | 4,723,901
EQUITY INSTRUMENTS AT FAIR VALUE THROUGH PROFIT OR LOSS | Private Securities - In pesos | Acción Banco de Valores de Bs. As. | Level 1 Fair value |  |
Disclosure Of Detailed Information About Investment Portfolio Of Government And Corporate Securities [Line Items] |  |
Equity instruments held | $ 2,092,186 | $ 2,300,986

X
- Definition Disclosure of detailed information about investment portfolio of government and corporate securities. + References No definition available. + Details
Name: | bbar_DisclosureOfDetailedInformationAboutInvestmentPortfolioOfGovernmentAndCorporateSecuritiesLineItems
Namespace Prefix: | bbar_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of instruments held by the entity that provide evidence of a residual interest in the assets of another entity after deducting all of its liabilities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_EquityInstrumentsHeld
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_LevelsOfFairValueHierarchyAxis=ifrs-full_Level1OfFairValueHierarchyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=bbar_EquitySecuritiesAtFairValueThroughProfitOrLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=bbar_PesosMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=bbar_MutualFund1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=bbar_ShareBymaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=bbar_ShareBancoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |