v3.26.1
RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Derivative instruments - Trading derivatives - Liabilities (Details) - COP ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of financial liabilities [line items]    
Financial liabilities $ 278,063,105 $ 274,729,544
Financial liabilities at fair value through profit or loss, category [member]    
Disclosure of financial liabilities [line items]    
Financial liabilities 1,986,281 1,033,592
Trading derivatives [member] | Financial liabilities at fair value through profit or loss, classified as held for trading, category [member]    
Disclosure of financial liabilities [line items]    
Financial liabilities 1,951,439 1,011,934
Derivatives [member] | Trading derivatives [member]    
Disclosure of financial liabilities [line items]    
Financial liabilities 1,951,439 1,011,934
Derivatives [member] | Trading derivatives [member] | Financial liabilities at fair value through profit or loss, classified as held for trading, category [member]    
Disclosure of financial liabilities [line items]    
Notional amount 73,825,664 64,053,439
Financial liabilities 1,951,439 1,011,934
Derivatives [member] | Trading derivatives [member] | Financial liabilities at fair value through profit or loss, classified as held for trading, category [member] | Central counterparties [member]    
Disclosure of financial liabilities [line items]    
Notional amount 3,682,966 10,715,432
Financial liabilities $ 36,037 $ 6,646