XML 206 R187.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Financial Instruments Risks - Additional Information (Details) | Dec. 31, 2023
--- | ---
Disclosure of nature and extent of risks arising from financial instruments [abstract] |
Sensitivity Analysis Measurement Percentage | 100.00%

X
- Definition Sensitivity Analysis, Measurement Percentage + References No definition available. + Details
Name: | bbar_SensitivityAnalysisMeasurementPercentage
Namespace Prefix: | bbar_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration