v3.26.1
RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Other accounts receivable at FVTPL (Details) - COP ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of financial assets [line items]    
Financial assets $ 305,457,293 $ 304,853,883
Financial assets at fair value through profit or loss, category [member]    
Disclosure of financial assets [line items]    
Financial assets 31,969,586 24,400,493
Service concession arrangement [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 2,635,437 4,181,835
Service concession arrangement [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 2,635,437 4,181,835
Service concession arrangement [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount [member] | Investment grade [member]    
Disclosure of financial assets [line items]    
Financial assets   $ 4,181,835
Service concession arrangement [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] | Gross carrying amount [member] | Speculative grade [member]    
Disclosure of financial assets [line items]    
Financial assets $ 2,635,437