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Subordinated Debt - Summary of Subordinated Debt (Details) - KZT (₸)
₸ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of detailed information about borrowings [line items]      
Total debt securities ₸ 51,050 ₸ 99,468 ₸ 140,378
Subordinated Debt Securities      
Disclosure of detailed information about borrowings [line items]      
Total debt securities ₸ 62,416 62,369 ₸ 67,608
Third Bond Program - Fourth Issue | Subordinated Debt Securities      
Disclosure of detailed information about borrowings [line items]      
Currency KZT    
Maturity date June 2025    
Nominal interest rate 10.70%    
Total debt securities ₸ 62,278 62,274  
Debt Component of Preference Shares | Subordinated Debt Securities      
Disclosure of detailed information about borrowings [line items]      
Currency KZT    
Total debt securities ₸ 138 ₸ 95