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Financial Instruments Risks - Summary of Credit Risk Exposure of Loans and Advances (Details) - ARS ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	$ 647,025,344	$ 664,472,529
Total loan commitments and financial guarantees	647,025,344	664,472,529
Maximum exposure to credit risk	5,397,242,655	5,927,119,466
Wholesale [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	241,347,117	124,191,534
Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	96,632,508	46,597,993
Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	95,868,758	54,373,985
Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	35,404,046	11,467,755
Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	13,441,805	11,751,801
Retail [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	405,678,227	540,280,995
Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	13,284,965	30,487,566
Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	390,703,870	507,464,932
Mortgages [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	1,598,766	2,108,796
Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	90,626	219,701
Financial assets at amortised cost, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	3,492,654,055	2,783,507,847
Financial assets at amortised cost, category [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,221,331,138	1,214,785,498
Financial assets at amortised cost, category [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Financial assets	528,849,835	524,857,823
Financial assets at amortised cost, category [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	362,392,695	352,986,681
Financial assets at amortised cost, category [member] | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Financial assets	10,319	188,578
Financial assets at amortised cost, category [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Financial assets	159,206,280	153,825,763
Financial assets at amortised cost, category [member] | Wholesale Others [Member]
Disclosure of credit risk exposure [line items]
Financial assets	170,872,009	182,926,653
Financial assets at amortised cost, category [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Financial assets	972,219,682	1,266,372,541
Financial assets at amortised cost, category [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,909,410	3,354,887
Financial assets at amortised cost, category [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Financial assets	674,523,874	822,762,185
Financial assets at amortised cost, category [member] | Retail Personal Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	153,475,842	220,915,565
Financial assets at amortised cost, category [member] | Retail Bridge Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	47,968,181	84,573,077
Financial assets at amortised cost, category [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Financial assets	90,404,966	131,979,055
Financial assets at amortised cost, category [member] | Lease receivables [member]
Disclosure of credit risk exposure [line items]
Financial assets	2,177,565	2,688,360
Financial assets at amortised cost, category [member] | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,759,844	99,412
Financial assets at amortised cost, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets	96,681,440	138,659,964
Financial assets at fair value through other comprehensive income, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	841,884,579	1,922,232,186
Total financial assets risk	4,750,217,311	5,262,646,937
Financial assets at fair value through other comprehensive income, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets	841,884,579	1,922,232,186
Cash and cash equivalents [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	415,678,677	556,906,904
Reverse repurchase agreements [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	1,202,421,795	163,689,844
Reverse repurchase agreements [member] | BCRA Repos [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	1,202,421,795	163,689,844
Stage 1 [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	585,414,818	606,937,314
Total loan commitments and financial guarantees	585,414,818	606,937,314
Maximum exposure to credit risk	4,347,881,635	5,043,347,522
Stage 1 [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	217,735,177	109,972,663
Stage 1 [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	83,741,932	38,071,627
Stage 1 [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	92,737,597	51,837,248
Stage 1 [member] | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	31,588,932	9,147,894
Stage 1 [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	9,666,716	10,915,894
Stage 1 [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	367,679,641	496,964,651
Stage 1 [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	12,787,853	29,181,844
Stage 1 [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	353,899,032	466,048,328
Stage 1 [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	913,866	1,528,230
Stage 1 [member] | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	78,890	206,249
Stage 1 [member] | Financial assets at amortised cost, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	3,154,006,364	2,401,123,764
Stage 1 [member] | Financial assets at amortised cost, category [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,129,949,339	1,155,211,671
Stage 1 [member] | Financial assets at amortised cost, category [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Financial assets	504,743,775	489,222,837
Stage 1 [member] | Financial assets at amortised cost, category [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	311,601,170	334,163,826
Stage 1 [member] | Financial assets at amortised cost, category [member] | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Financial assets	3,685	8,729
Stage 1 [member] | Financial assets at amortised cost, category [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Financial assets	142,728,700	148,889,626
Stage 1 [member] | Financial assets at amortised cost, category [member] | Wholesale Others [Member]
Disclosure of credit risk exposure [line items]
Financial assets	170,872,009	182,926,653
Stage 1 [member] | Financial assets at amortised cost, category [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Financial assets	821,635,230	1,082,222,249
Stage 1 [member] | Financial assets at amortised cost, category [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,166,156	1,837,008
Stage 1 [member] | Financial assets at amortised cost, category [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Financial assets	582,116,623	707,207,058
Stage 1 [member] | Financial assets at amortised cost, category [member] | Retail Personal Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	131,013,331	194,713,429
Stage 1 [member] | Financial assets at amortised cost, category [member] | Retail Bridge Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	46,532,007	79,746,567
Stage 1 [member] | Financial assets at amortised cost, category [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Financial assets	58,129,217	95,975,191
Stage 1 [member] | Financial assets at amortised cost, category [member] | Lease receivables [member]
Disclosure of credit risk exposure [line items]
Financial assets	2,163,236	2,643,692
Stage 1 [member] | Financial assets at amortised cost, category [member] | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Financial assets	514,660	99,304
Stage 1 [member] | Financial assets at fair value through other comprehensive income, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	192,781,776	1,478,379,540
Total financial assets risk	3,762,466,817	4,436,410,208
Stage 1 [member] | Financial assets at fair value through other comprehensive income, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets	192,781,776	1,478,379,540
Stage 1 [member] | Cash and cash equivalents [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	415,678,677	556,906,904
Stage 1 [member] | Reverse repurchase agreements [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	1,202,421,795	163,689,844
Stage 1 [member] | Reverse repurchase agreements [member] | BCRA Repos [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	1,202,421,795	163,689,844
Stage 2 [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	61,403,032	57,326,255
Total loan commitments and financial guarantees	61,403,032	57,326,255
Maximum exposure to credit risk	1,013,946,344	844,385,666
Stage 2 [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	23,589,353	14,184,466
Stage 2 [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	12,885,097	8,513,906
Stage 2 [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	3,131,153	2,536,737
Stage 2 [member] | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	3,815,114	2,319,861
Stage 2 [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	3,757,989	813,962
Stage 2 [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	37,813,679	43,141,789
Stage 2 [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	494,004	1,301,474
Stage 2 [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	36,679,554	41,291,086
Stage 2 [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	628,385	535,777
Stage 2 [member] | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	11,736	13,452
Stage 2 [member] | Financial assets at amortised cost, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	303,440,509	343,206,765
Stage 2 [member] | Financial assets at amortised cost, category [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Financial assets	85,843,115	53,184,583
Stage 2 [member] | Financial assets at amortised cost, category [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Financial assets	19,918,423	30,582,887
Stage 2 [member] | Financial assets at amortised cost, category [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	50,791,308	18,822,815
Stage 2 [member] | Financial assets at amortised cost, category [member] | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,537	178,046
Stage 2 [member] | Financial assets at amortised cost, category [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Financial assets	15,131,847	3,600,835
Stage 2 [member] | Financial assets at amortised cost, category [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Financial assets	120,915,954	151,362,218
Stage 2 [member] | Financial assets at amortised cost, category [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Financial assets	377,016	987,944
Stage 2 [member] | Financial assets at amortised cost, category [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Financial assets	78,202,893	102,601,449
Stage 2 [member] | Financial assets at amortised cost, category [member] | Retail Personal Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	11,302,243	13,703,503
Stage 2 [member] | Financial assets at amortised cost, category [member] | Retail Bridge Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	653,277	2,299,056
Stage 2 [member] | Financial assets at amortised cost, category [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Financial assets	29,121,012	31,729,028
Stage 2 [member] | Financial assets at amortised cost, category [member] | Lease receivables [member]
Disclosure of credit risk exposure [line items]
Financial assets	14,329	41,130
Stage 2 [member] | Financial assets at amortised cost, category [member] | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,245,184	108
Stage 2 [member] | Financial assets at amortised cost, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets	96,681,440	138,659,964
Stage 2 [member] | Financial assets at fair value through other comprehensive income, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	649,102,803	443,852,646
Total financial assets risk	952,543,312	787,059,411
Stage 2 [member] | Financial assets at fair value through other comprehensive income, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets	649,102,803	443,852,646
Stage 3 [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	207,494	208,960
Total loan commitments and financial guarantees	207,494	208,960
Maximum exposure to credit risk	35,414,676	39,386,278
Stage 3 [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	22,587	34,405
Stage 3 [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	5,479	12,460
Stage 3 [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	8
Stage 3 [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	17,100	21,945
Stage 3 [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	184,907	174,555
Stage 3 [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	3,108	4,248
Stage 3 [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	125,284	125,518
Stage 3 [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	56,515	44,789
Stage 3 [member] | Financial assets at amortised cost, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	35,207,182	39,177,318
Stage 3 [member] | Financial assets at amortised cost, category [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Financial assets	5,538,684	6,389,244
Stage 3 [member] | Financial assets at amortised cost, category [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Financial assets	4,187,637	5,052,099
Stage 3 [member] | Financial assets at amortised cost, category [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	217	40
Stage 3 [member] | Financial assets at amortised cost, category [member] | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Financial assets	5,097	1,803
Stage 3 [member] | Financial assets at amortised cost, category [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,345,733	1,335,302
Stage 3 [member] | Financial assets at amortised cost, category [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Financial assets	29,668,498	32,788,074
Stage 3 [member] | Financial assets at amortised cost, category [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Financial assets	366,238	529,935
Stage 3 [member] | Financial assets at amortised cost, category [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Financial assets	14,204,358	12,953,678
Stage 3 [member] | Financial assets at amortised cost, category [member] | Retail Personal Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	11,160,268	12,498,633
Stage 3 [member] | Financial assets at amortised cost, category [member] | Retail Bridge Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	782,897	2,527,454
Stage 3 [member] | Financial assets at amortised cost, category [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Financial assets	3,154,737	4,274,836
Stage 3 [member] | Financial assets at amortised cost, category [member] | Lease receivables [member]
Disclosure of credit risk exposure [line items]
Financial assets		3,538
Stage 3 [member] | Financial assets at fair value through other comprehensive income, category [member]
Disclosure of credit risk exposure [line items]
Total financial assets risk	$ 35,207,182	$ 39,177,318

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Financial assets risk

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The amount of loan commitments and financial guarantees risk.

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The amount of the exposure to credit risk on loan commitments and financial guarantee contracts. [Refer: Loan commitments [member]; Financial guarantee contracts [member]; Credit risk [member]]

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-Name IFRS
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The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities]

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The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]

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