XML 146 R125.htm IDEA: XBRL DOCUMENT
v3.21.1

Investment in Joint Ventures and Associates - Most Significant Investment in Joint Ventures and Associates (Details) - Rombo Cia Financiera SA - ARS ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Most Significant Investment in Joint Ventures and Associates |  |
Assets of Joint Ventures and Associates | $ 9,354,472 | $ 10,801,444
Liabilities of Joint Ventures and Associates | 7,461,599 | 8,562,999
Profit of Joint Ventures and Associates | 345,574 | 395,620
Equity of Joint Ventures and Associates | $ 1,892,873 | $ 2,238,445
Ownership Interest | 40.00% | 40.00%

X
- Definition The amount of assets related to the most significant investment in joint ventures and associates. + References No definition available. + Details
Name: | bbar_AssetsOfJointVenturesAndAssociates
Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Disclosure of most significant investments in associates. + References No definition available. + Details
Name: | bbar_DisclosureOfMostSignificantInvestmentsInAssociatesLineItems
Namespace Prefix: | bbar_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The equity related to the most significant investment in joint ventures and associates. + References No definition available. + Details
Name: | bbar_EquityOfJointVenturesAndAssociates
Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of liabilities related to the most significant investment in joint ventures and associates. + References No definition available. + Details
Name: | bbar_LiabilitiesOfJointVenturesAndAssociates
Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The profit related to the most significant investment in joint ventures and associates. + References No definition available. + Details
Name: | bbar_ProfitOfJointVenturesAndAssociate
Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2020-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2020-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | bbar_SignificantInvestmentsInAssociates1Axis=bbar_RomboCiaFinancieraSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |