Loans to Customers - Schedule of Outstanding NPLs as Compared to Total Allowance for Impairment Losses (Details) - KZT (₸) ₸ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Loans to customers [abstract]
Gross NPLs	₸ 466,845	₸ 327,730
Total allowance for impairment losses	₸ 371,764	₸ 295,843
Total allowance for impairment losses to Gross NPLs	80.00%	90.00%

The amount of the loss allowance the entity has made on loans and advances that are measured in accordance with paragraph 4.1.2 of IFRS 9.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant