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Credit risk exposure and allowances - Schedule of Credit Exposure, Loan Commitments and Financial Guarantees (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Financial assets at beginning of period | $ 11,753,183,986 |
Financial assets at end of period | 15,350,501,149 | $ 11,753,183,986
Gross carrying amount | Loan Committments And Financial Guarantees |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Financial assets at beginning of period | 1,408,980,172 | 1,446,973,647
New loan commitments and financial guarantees originated | 1,143,574,333 | 1,020,377,775
Expirations and repayments | (550,654,430) | (474,348,167)
Write-offs | (1,822) | (1,154)
Foreign exchange | 42,983,605 | 257,057,134
Inflation adjustment | (1,208,484,851) | (1,522,227,116)
Financial assets at end of period | 3,471,551,943 | 1,408,980,172
Gross carrying amount | Loan Committments And Financial Guarantees | Transfers from Stage 1 to Stage 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | (26,215,078) | (17,632,433)
Gross carrying amount | Loan Committments And Financial Guarantees | Transfers from Stage 2 to Stage 1 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 89,786,509 | 41,602,125
Gross carrying amount | Loan Committments And Financial Guarantees | Transfers from Stage 1 or 2 to Stage 3 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | (970,669) | (1,209,581)
Gross carrying amount | Loan Committments And Financial Guarantees | Transfers from Stage 3 to Stage 1 or 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 323,981 | (76,360)
Gross carrying amount | Loan Committments And Financial Guarantees | Changes without transfers between Stages |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 2,572,230,193 | 658,464,302
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Financial assets at beginning of period | 1,274,815,404 | 1,321,683,381
New loan commitments and financial guarantees originated | 1,087,873,500 | 984,079,857
Expirations and repayments | (493,088,612) | (421,131,951)
Write-offs | 0 | 0
Foreign exchange | 40,682,101 | 236,444,966
Inflation adjustment | (1,112,263,685) | (1,400,568,081)
Financial assets at end of period | 3,310,861,940 | 1,274,815,404
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Transfers from Stage 1 to Stage 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | (234,954,965) | (254,854,479)
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Transfers from Stage 2 to Stage 1 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 282,600,695 | 218,840,681
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Transfers from Stage 1 or 2 to Stage 3 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | (2,055,990) | (1,545,425)
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Transfers from Stage 3 to Stage 1 or 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 1,000,777 | 457,019
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Changes without transfers between Stages |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 2,466,252,715 | 591,409,436
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (collectively assessed) |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Financial assets at beginning of period | 451,089 | 453,972
New loan commitments and financial guarantees originated | 222,498 | 331,158
Expirations and repayments | (423,595) | (545,315)
Write-offs | (1,822) | (1,154)
Foreign exchange | 0 | 0
Inflation adjustment | (349,581) | (577,251)
Financial assets at end of period | 947,610 | 451,089
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (collectively assessed) | Transfers from Stage 1 to Stage 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 0 | 0
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (collectively assessed) | Transfers from Stage 2 to Stage 1 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 0 | 0
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (collectively assessed) | Transfers from Stage 1 or 2 to Stage 3 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 1,765,558 | 1,462,449
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (collectively assessed) | Transfers from Stage 3 to Stage 1 or 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | (1,015,178) | (1,053,689)
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (collectively assessed) | Changes without transfers between Stages |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 298,641 | 380,919
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (individually assessed) |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Financial assets at beginning of period | 753 | 1,065
New loan commitments and financial guarantees originated | 0 | 0
Expirations and repayments | (69) | (1,422)
Write-offs | 0 | 0
Foreign exchange | 0 | 0
Inflation adjustment | (4,433) | (4,406)
Financial assets at end of period | 1,975 | 753
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (individually assessed) | Transfers from Stage 1 to Stage 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 0 | 0
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (individually assessed) | Transfers from Stage 2 to Stage 1 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 0 | 0
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (individually assessed) | Transfers from Stage 1 or 2 to Stage 3 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 208 | 322
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (individually assessed) | Transfers from Stage 3 to Stage 1 or 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | (1,342) | (21,506)
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 1 and Stage 3 | Credit risk exposure (individually assessed) | Changes without transfers between Stages |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 6,858 | 26,700
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (collectively assessed) |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Financial assets at beginning of period | 133,320,842 | 124,417,490
New loan commitments and financial guarantees originated | 52,586,237 | 35,642,932
Expirations and repayments | (56,648,154) | (52,529,209)
Write-offs | 0 | 0
Foreign exchange | 1,893,004 | 20,514,301
Inflation adjustment | (94,947,309) | (120,617,404)
Financial assets at end of period | 158,966,261 | 133,320,842
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (collectively assessed) | Transfers from Stage 1 to Stage 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 208,668,179 | 237,205,389
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (collectively assessed) | Transfers from Stage 2 to Stage 1 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | (192,561,880) | (177,171,409)
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (collectively assessed) | Transfers from Stage 1 or 2 to Stage 3 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | (680,161) | (1,126,681)
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (collectively assessed) | Transfers from Stage 3 to Stage 1 or 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 339,440 | 541,548
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (collectively assessed) | Changes without transfers between Stages |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 106,996,063 | 66,443,885
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (individually assessed) |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Financial assets at beginning of period | 392,084 | 417,739
New loan commitments and financial guarantees originated | 2,892,098 | 323,828
Expirations and repayments | (494,000) | (140,270)
Write-offs | 0 | 0
Foreign exchange | 408,500 | 97,867
Inflation adjustment | (919,843) | (459,974)
Financial assets at end of period | 774,157 | 392,084
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (individually assessed) | Transfers from Stage 1 to Stage 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 71,708 | 16,657
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (individually assessed) | Transfers from Stage 2 to Stage 1 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | (252,306) | (67,147)
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (individually assessed) | Transfers from Stage 1 or 2 to Stage 3 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | (284) | (246)
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (individually assessed) | Transfers from Stage 3 to Stage 1 or 2 |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | 284 | 268
Gross carrying amount | Loan Committments And Financial Guarantees | Stage 2 | Credit risk exposure (individually assessed) | Changes without transfers between Stages |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Transfers of loan commitments and financial guarantees: | $ (1,324,084) | $ 203,362

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- Definition The decrease in exposure to credit risk on loan commitments and financial guarantee contracts resulting from derecognition. [Refer: Exposure to credit risk on loan commitments and financial guarantee contracts] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35I -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35I_c&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph IG20B -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_IG20B&doctype=Implementation%20Guidance -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35H&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in exposure to credit risk on loan commitments and financial guarantee contracts. [Refer: Exposure to credit risk on loan commitments and financial guarantee contracts] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35H&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35I -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35I&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in exposure to credit risk on loan commitments and financial guarantee contracts resulting from foreign exchange. [Refer: Exposure to credit risk on loan commitments and financial guarantee contracts] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph IG20B -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_IG20B&doctype=Implementation%20Guidance -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35H&doctype=Standard -URIDate 2024-03-27 + Details
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