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Segment Reporting - Business Assets And Liabilities Segments (Details) - ARS ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Business Segments [Line Items] |  |
Financial Assets At Amortised Cost - Loans And Advances By Business Segment | $ 195,129,732 | $ 279,336,187
Corporate Banking By Business Segment | 38,620,739 | 80,295,259
Small And Medium Companies By Business Segment | 47,033,650 | 80,677,348
Retail Assets By Business Segment | 109,475,343 | 118,363,580
Other Assets By Business Segment | 259,041,289 | 276,833,239
Total Assets By Business Segment | 454,171,021 | 556,169,426
Financial Liabilities At Amortised Cost - Deposits By Business Segment | 293,988,047 | 399,209,017
Corporate Banking Liabilities By Business Segment | 24,526,990 | 45,639,098
Small And Medium Companies Liabilities By Business Segment | 68,158,704 | 75,747,149
Retail Liabilities By Business Segment | 201,302,353 | 277,822,770
Other Liabilities By Business Segment | 75,845,904 | 86,901,841
Total Liabilities by Business Segment | $ 369,833,951 | $ 486,110,858

X
- Definition The amount of assets by business segment. + References No definition available. + Details
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- Definition The amount of corporate banking by business segment. + References No definition available. + Details
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- Definition The amount of corporate banking liabilities by business segment. + References No definition available. + Details
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- Definition The amount of loans and advances at amortised cost by business segment. + References No definition available. + Details
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- Definition The amount of loans and advances at amortised cost by business segment. + References No definition available. + Details
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- Definition The amount of liabilities by business segment. + References No definition available. + Details
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Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
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- Definition The amount of other assets by business segment. + References No definition available. + Details
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Balance Type: | debit
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- Definition The amount of other liabilities by business segment. + References No definition available. + Details
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Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition The amount of retail assets by business segment + References No definition available. + Details
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- Definition The amount of small and medium companies liabilities by business segment. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition The amount of small and medium companies by business segment. + References No definition available. + Details
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- Definition The amount of small and medium companies liabilities by business segment. + References No definition available. + Details
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