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Financial Instruments Risks - Summary of Credit Risk Exposure of Loans and Advances (Detail) - ARS ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	$ 213,378,338	$ 173,409,861
Total loan commitments and financial guarantees	213,378,338	173,409,861
Maximum exposure to credit risk	1,903,342,526	1,892,223,634
Wholesale [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	39,880,930	32,989,030
Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	14,963,751	15,204,636
Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	17,460,813
Exposure to credit risk on loan commitments and financial guarantee contracts		10,551,603
Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	3,682,576	4,165,682
Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	3,773,790	3,067,109
Retail [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	173,497,408	140,420,831
Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	9,790,301	13,781,897
Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	162,959,370	125,774,817
Mortgages [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	677,186	802,068
Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	70,551	62,049
Financial assets at amortised cost, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	893,852,150	1,116,858,224
Financial assets at amortised cost, category [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Financial assets	390,097,138	345,853,117
Financial assets at amortised cost, category [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Financial assets	168,544,650	149,451,501
Financial assets at amortised cost, category [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	113,352,612	111,945,948
Financial assets at amortised cost, category [member] | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Financial assets	60,557	2,703
Financial assets at amortised cost, category [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Financial assets	49,397,216	44,436,903
Financial assets at amortised cost, category [member] | Wholesale Others [Member]
Disclosure of credit risk exposure [line items]
Financial assets	58,742,103	40,016,062
Financial assets at amortised cost, category [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Financial assets	406,663,113	459,114,122
Financial assets at amortised cost, category [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,077,336	1,219,920
Financial assets at amortised cost, category [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Financial assets	264,209,007	294,222,503
Financial assets at amortised cost, category [member] | Retail Personal Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	70,941,377	78,598,056
Financial assets at amortised cost, category [member] | Retail Bridge Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	27,158,478	34,642,733
Financial assets at amortised cost, category [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Financial assets	42,381,694	49,793,250
Financial assets at amortised cost, category [member] | Lease receivables [member]
Disclosure of credit risk exposure [line items]
Financial assets	863,298	625,315
Financial assets at amortised cost, category [member] | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Financial assets	31,923	12,345
Financial assets at amortised cost, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets	44,527,097	43,956,008
Financial assets at fair value through other comprehensive income, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	617,275,646	325,381,377
Total financial assets risk	1,689,964,188	1,718,813,773
Financial assets at fair value through other comprehensive income, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets	617,275,646
Cash and cash equivalents [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	178,836,392	276,574,172
Reverse repurchase agreements [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	52,564,802	267,934,977
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	52,564,802	267,934,977
Stage 1
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	194,902,377	160,736,610
Total loan commitments and financial guarantees	194,902,377	160,736,610
Maximum exposure to credit risk	1,619,541,797	1,616,639,454
Stage 1 | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	35,314,905	28,361,124
Stage 1 | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	12,225,728	13,010,025
Stage 1 | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	16,646,205
Exposure to credit risk on loan commitments and financial guarantee contracts		9,435,127
Stage 1 | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	2,937,612	3,294,538
Stage 1 | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	3,505,360	2,621,434
Stage 1 | Retail [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	159,587,472	132,375,486
Stage 1 | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	9,371,002	13,379,892
Stage 1 | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	149,659,487	118,383,977
Stage 1 | Mortgages [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	490,752	550,949
Stage 1 | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	66,231	60,668
Stage 1 | Financial assets at amortised cost, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	771,059,294	966,901,255
Stage 1 | Financial assets at amortised cost, category [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Financial assets	370,966,529	308,661,046
Stage 1 | Financial assets at amortised cost, category [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Financial assets	157,101,387	129,739,961
Stage 1 | Financial assets at amortised cost, category [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	107,308,134	96,263,799
Stage 1 | Financial assets at amortised cost, category [member] | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Financial assets	2,803	1,938
Stage 1 | Financial assets at amortised cost, category [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Financial assets	47,812,102	42,639,286
Stage 1 | Financial assets at amortised cost, category [member] | Wholesale Others [Member]
Disclosure of credit risk exposure [line items]
Financial assets	58,742,103	40,016,062
Stage 1 | Financial assets at amortised cost, category [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Financial assets	347,527,963	390,305,232
Stage 1 | Financial assets at amortised cost, category [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Financial assets	589,908	802,622
Stage 1 | Financial assets at amortised cost, category [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Financial assets	227,101,438	259,546,715
Stage 1 | Financial assets at amortised cost, category [member] | Retail Personal Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	62,527,232	61,477,071
Stage 1 | Financial assets at amortised cost, category [member] | Retail Bridge Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	25,608,568	33,086,389
Stage 1 | Financial assets at amortised cost, category [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Financial assets	30,819,975	34,783,933
Stage 1 | Financial assets at amortised cost, category [member] | Lease receivables [member]
Disclosure of credit risk exposure [line items]
Financial assets	848,954	597,280
Stage 1 | Financial assets at amortised cost, category [member] | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Financial assets	31,888	11,222
Stage 1 | Financial assets at amortised cost, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets		0
Stage 1 | Financial assets at fair value through other comprehensive income, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	474,743,734	212,427,417
Total financial assets risk	1,424,639,420	1,455,902,844
Stage 1 | Financial assets at fair value through other comprehensive income, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets	474,743,734
Stage 1 | Cash and cash equivalents [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	178,836,392	276,574,172
Stage 1 | Reverse repurchase agreements [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	52,564,802	267,934,977
Stage 1 | 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	52,564,802	267,934,977
Stage 2
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	18,408,859	12,597,776
Total loan commitments and financial guarantees	18,408,859	12,597,776
Maximum exposure to credit risk	271,152,835	256,768,181
Stage 2 | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	4,554,978	4,610,616
Stage 2 | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	2,734,023	2,184,410
Stage 2 | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	814,608
Exposure to credit risk on loan commitments and financial guarantee contracts		1,116,476
Stage 2 | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	744,964	871,144
Stage 2 | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	261,383	438,586
Stage 2 | Retail [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	13,853,881	7,987,160
Stage 2 | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	417,935	401,687
Stage 2 | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	13,259,575	7,333,974
Stage 2 | Mortgages [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	172,051	250,118
Stage 2 | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Financial assets	35
Exposure to credit risk on loan commitments and financial guarantee contracts	4,320	1,381
Stage 2 | Financial assets at amortised cost, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	110,212,064	131,216,445
Stage 2 | Financial assets at amortised cost, category [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Financial assets	17,078,867	30,406,084
Stage 2 | Financial assets at amortised cost, category [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Financial assets	9,820,911	16,530,105
Stage 2 | Financial assets at amortised cost, category [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	6,044,465	12,311,878
Stage 2 | Financial assets at amortised cost, category [member] | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Financial assets	57,175	97
Stage 2 | Financial assets at amortised cost, category [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,156,316	1,564,004
Stage 2 | Financial assets at amortised cost, category [member] | Wholesale Others [Member]
Disclosure of credit risk exposure [line items]
Financial assets		0
Stage 2 | Financial assets at amortised cost, category [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Financial assets	48,606,100	56,854,353
Stage 2 | Financial assets at amortised cost, category [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Financial assets	317,253	229,340
Stage 2 | Financial assets at amortised cost, category [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Financial assets	32,947,827	30,109,986
Stage 2 | Financial assets at amortised cost, category [member] | Retail Personal Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	4,400,529	11,810,633
Stage 2 | Financial assets at amortised cost, category [member] | Retail Bridge Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	738,283	696,214
Stage 2 | Financial assets at amortised cost, category [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Financial assets	10,188,965	14,007,771
Stage 2 | Financial assets at amortised cost, category [member] | Lease receivables [member]
Disclosure of credit risk exposure [line items]
Financial assets	13,208	409
Stage 2 | Financial assets at amortised cost, category [member] | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Financial assets		0
Stage 2 | Financial assets at amortised cost, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets	44,527,097	43,956,008
Stage 2 | Financial assets at fair value through other comprehensive income, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	142,531,912	112,953,960
Total financial assets risk	252,743,976	244,170,405
Stage 2 | Financial assets at fair value through other comprehensive income, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets	142,531,912
Stage 2 | Cash and cash equivalents [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts		0
Stage 2 | Reverse repurchase agreements [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts		0
Stage 2 | 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		0
Stage 3
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	67,102	75,475
Total loan commitments and financial guarantees	67,102	75,475
Maximum exposure to credit risk	12,647,894	18,815,999
Stage 3 | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	11,047	17,290
Stage 3 | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	4,000	10,201
Stage 3 | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts		0
Stage 3 | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts		0
Stage 3 | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	7,047	7,089
Stage 3 | Retail [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	56,055	58,185
Stage 3 | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	1,364	318
Stage 3 | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	40,308	56,866
Stage 3 | Mortgages [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts	14,383	1,001
Stage 3 | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts		0
Stage 3 | Financial assets at amortised cost, category [member]
Disclosure of credit risk exposure [line items]
Financial assets	12,580,792	18,740,524
Stage 3 | Financial assets at amortised cost, category [member] | Wholesale [Member]
Disclosure of credit risk exposure [line items]
Financial assets	2,051,742	6,785,987
Stage 3 | Financial assets at amortised cost, category [member] | Wholesale Business [Member]
Disclosure of credit risk exposure [line items]
Financial assets	1,622,352	3,181,435
Stage 3 | Financial assets at amortised cost, category [member] | Wholesale CIB [Member]
Disclosure of credit risk exposure [line items]
Financial assets	13	3,370,271
Stage 3 | Financial assets at amortised cost, category [member] | Wholesale International and Institutional [Member]
Disclosure of credit risk exposure [line items]
Financial assets	579	668
Stage 3 | Financial assets at amortised cost, category [member] | Wholesale MSMEs [Member]
Disclosure of credit risk exposure [line items]
Financial assets	428,798	233,613
Stage 3 | Financial assets at amortised cost, category [member] | Wholesale Others [Member]
Disclosure of credit risk exposure [line items]
Financial assets		0
Stage 3 | Financial assets at amortised cost, category [member] | Retail [Member]
Disclosure of credit risk exposure [line items]
Financial assets	10,529,050	11,954,537
Stage 3 | Financial assets at amortised cost, category [member] | Retail Advances [Member]
Disclosure of credit risk exposure [line items]
Financial assets	170,175	187,958
Stage 3 | Financial assets at amortised cost, category [member] | Retail Credit Cards [Member]
Disclosure of credit risk exposure [line items]
Financial assets	4,159,742	4,565,802
Stage 3 | Financial assets at amortised cost, category [member] | Retail Personal Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	4,013,616	5,310,352
Stage 3 | Financial assets at amortised cost, category [member] | Retail Bridge Loans [Member]
Disclosure of credit risk exposure [line items]
Financial assets	811,627	860,130
Stage 3 | Financial assets at amortised cost, category [member] | Mortgages [member]
Disclosure of credit risk exposure [line items]
Financial assets	1,372,754	1,001,546
Stage 3 | Financial assets at amortised cost, category [member] | Lease receivables [member]
Disclosure of credit risk exposure [line items]
Financial assets	1,136	27,626
Stage 3 | Financial assets at amortised cost, category [member] | Other Financials Assets [Member]
Disclosure of credit risk exposure [line items]
Financial assets	0	1,123
Stage 3 | Financial assets at amortised cost, category [member] | Debt securities [member]
Disclosure of credit risk exposure [line items]
Financial assets		0
Stage 3 | Financial assets at fair value through other comprehensive income, category [member]
Disclosure of credit risk exposure [line items]
Financial assets		0
Total financial assets risk	$ 12,580,792	18,740,524
Stage 3 | Cash and cash equivalents [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts		0
Stage 3 | Reverse repurchase agreements [member]
Disclosure of credit risk exposure [line items]
Exposure to credit risk on loan commitments and financial guarantee contracts		0
Stage 3 | 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		$ 0

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Financial assets risk

+ References

No definition available.

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- Definition

The amount of loan commitments and financial guarantees risk.

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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No definition available.

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- Definition

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]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 35H
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-Name IFRS
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-Name IFRS
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- Definition

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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- Definition

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]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 7
-IssueDate 2022-03-24
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-URIDate 2022-03-24

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