XML 172 R153.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Debt Securities Issued (Parenthetical) (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 ARS ($)
Disclosure Of Debt Instruments Issued [Line Items] |
Interest rate adopted | BADLAR
Balances on time deposits | $ 1
Bottom of range [member] |
Disclosure Of Debt Instruments Issued [Line Items] |
No of days interest rate on time deposits used | 30 days
Top of range [member] |
Disclosure Of Debt Instruments Issued [Line Items] |
No of days interest rate on time deposits used | 35 days

X
- Definition Balances on time deposits. + References No definition available. + Details
Name: | bbar_BalancesOnTimeDeposits
Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Interest rate adopted. + References No definition available. + Details
Name: | bbar_InterestRateAdopted
Namespace Prefix: | bbar_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition No of days interest rate on time deposits used. + References No definition available. + Details
Name: | bbar_NoOfDaysInterestRateOnTimeDepositsUsed
Namespace Prefix: | bbar_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |