v3.26.1
RISK MANAGEMENT - Mitigation of credit risk, collateral and other (Details) - COP ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of financial assets [line items]    
Credit exposure $ 290,890,645 $ 292,433,720
Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure 192,655,943 200,136,125
Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure 22,111,710 22,035,727
Less than 50% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure 10,559,114 9,427,666
51 - 70% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure 8,779,050 7,820,690
71 - 90% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure 2,382,447 3,964,073
91 - 100% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure 206,889 556,783
More than 100% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure 184,210 266,515
Financial instruments credit-impaired [member] | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure 739,221 795,165
Financial instruments credit-impaired [member] | Less than 50% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure 240,489 205,345
Financial instruments credit-impaired [member] | 51 - 70% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure 360,955 320,667
Financial instruments credit-impaired [member] | More than 70% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of financial assets [line items]    
Credit exposure $ 137,777 $ 269,153