XML 199 R179.htm IDEA: XBRL DOCUMENT v3.22.1

Financial Instruments Risks (Details)	Dec. 31, 2021
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