v3.26.1
LOANS - Loan portfolio by maturity (Details) - COP ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of financial assets [line items]        
Financial assets $ 305,457,293 $ 304,853,883    
Financial assets at amortised cost, category        
Disclosure of financial assets [line items]        
Financial assets 243,432,271 251,981,889    
Loan portfolio | Financial assets at amortised cost, category        
Disclosure of financial assets [line items]        
Financial assets 184,225,973 190,129,486    
Loan portfolio | Financial assets at amortised cost, category | Gross carrying amount        
Disclosure of financial assets [line items]        
Financial assets 192,655,943 200,136,125 $ 186,203,770 $ 188,313,361
Loan portfolio | Financial assets at amortised cost, category | Gross carrying amount | Up to 1 year        
Disclosure of financial assets [line items]        
Financial assets 63,383,527 72,080,213    
Loan portfolio | Financial assets at amortised cost, category | Gross carrying amount | From 1 to 3 years        
Disclosure of financial assets [line items]        
Financial assets 45,832,545 46,310,815    
Loan portfolio | Financial assets at amortised cost, category | Gross carrying amount | From 3 to 5 years        
Disclosure of financial assets [line items]        
Financial assets 29,389,702 26,622,937    
Loan portfolio | Financial assets at amortised cost, category | Gross carrying amount | More than 5 years        
Disclosure of financial assets [line items]        
Financial assets 54,050,169 55,122,160    
Loans to corporate entities [member] | Financial assets at amortised cost, category        
Disclosure of financial assets [line items]        
Financial assets 105,824,421 110,756,010    
Loans to corporate entities [member] | Financial assets at amortised cost, category | Gross carrying amount        
Disclosure of financial assets [line items]        
Financial assets 110,086,500 116,119,698    
Commercial lending portfolio [member] | Financial assets at amortised cost, category        
Disclosure of financial assets [line items]        
Financial assets 104,047,053 110,051,750    
Commercial lending portfolio [member] | Financial assets at amortised cost, category | Gross carrying amount        
Disclosure of financial assets [line items]        
Financial assets 108,308,984 115,414,643 107,047,817 104,775,099
Commercial lending portfolio [member] | Financial assets at amortised cost, category | Gross carrying amount | Up to 1 year        
Disclosure of financial assets [line items]        
Financial assets 49,278,231 59,494,116    
Commercial lending portfolio [member] | Financial assets at amortised cost, category | Gross carrying amount | From 1 to 3 years        
Disclosure of financial assets [line items]        
Financial assets 29,694,500 30,333,667    
Commercial lending portfolio [member] | Financial assets at amortised cost, category | Gross carrying amount | From 3 to 5 years        
Disclosure of financial assets [line items]        
Financial assets 15,860,292 13,675,325    
Commercial lending portfolio [member] | Financial assets at amortised cost, category | Gross carrying amount | More than 5 years        
Disclosure of financial assets [line items]        
Financial assets 13,475,961 11,911,535    
Interbank and overnight funds [member] | Financial assets at amortised cost, category        
Disclosure of financial assets [line items]        
Financial assets 1,777,368 704,260    
Interbank and overnight funds [member] | Financial assets at amortised cost, category | Gross carrying amount        
Disclosure of financial assets [line items]        
Financial assets 1,777,516 705,055 392,607 5,967,743
Interbank and overnight funds [member] | Financial assets at amortised cost, category | Gross carrying amount | Up to 1 year        
Disclosure of financial assets [line items]        
Financial assets 1,777,516 705,055    
Consumer | Financial assets at amortised cost, category        
Disclosure of financial assets [line items]        
Financial assets 56,791,437 57,810,307    
Consumer | Financial assets at amortised cost, category | Gross carrying amount        
Disclosure of financial assets [line items]        
Financial assets 60,456,213 61,976,325 59,999,611 59,419,444
Consumer | Financial assets at amortised cost, category | Gross carrying amount | Up to 1 year        
Disclosure of financial assets [line items]        
Financial assets 11,207,153 10,887,363    
Consumer | Financial assets at amortised cost, category | Gross carrying amount | From 1 to 3 years        
Disclosure of financial assets [line items]        
Financial assets 14,398,577 14,549,074    
Consumer | Financial assets at amortised cost, category | Gross carrying amount | From 3 to 5 years        
Disclosure of financial assets [line items]        
Financial assets 11,566,323 11,342,281    
Consumer | Financial assets at amortised cost, category | Gross carrying amount | More than 5 years        
Disclosure of financial assets [line items]        
Financial assets 23,284,160 25,197,607    
Mortgage | Financial assets at amortised cost, category        
Disclosure of financial assets [line items]        
Financial assets 21,609,555 21,562,412    
Mortgage | Financial assets at amortised cost, category | Gross carrying amount        
Disclosure of financial assets [line items]        
Financial assets 22,111,710 22,035,727 18,486,206 17,883,355
Mortgage | Financial assets at amortised cost, category | Gross carrying amount | Up to 1 year        
Disclosure of financial assets [line items]        
Financial assets 1,119,825 990,277    
Mortgage | Financial assets at amortised cost, category | Gross carrying amount | From 1 to 3 years        
Disclosure of financial assets [line items]        
Financial assets 1,739,368 1,427,865    
Mortgage | Financial assets at amortised cost, category | Gross carrying amount | From 3 to 5 years        
Disclosure of financial assets [line items]        
Financial assets 1,963,065 1,605,095    
Mortgage | Financial assets at amortised cost, category | Gross carrying amount | More than 5 years        
Disclosure of financial assets [line items]        
Financial assets 17,289,452 18,012,490    
Microcredit | Financial assets at amortised cost, category        
Disclosure of financial assets [line items]        
Financial assets 560 757    
Microcredit | Financial assets at amortised cost, category | Gross carrying amount        
Disclosure of financial assets [line items]        
Financial assets 1,520 4,375 $ 277,529 $ 267,720
Microcredit | Financial assets at amortised cost, category | Gross carrying amount | Up to 1 year        
Disclosure of financial assets [line items]        
Financial assets 802 3,402    
Microcredit | Financial assets at amortised cost, category | Gross carrying amount | From 1 to 3 years        
Disclosure of financial assets [line items]        
Financial assets 100 209    
Microcredit | Financial assets at amortised cost, category | Gross carrying amount | From 3 to 5 years        
Disclosure of financial assets [line items]        
Financial assets 22 236    
Microcredit | Financial assets at amortised cost, category | Gross carrying amount | More than 5 years        
Disclosure of financial assets [line items]        
Financial assets $ 596 $ 528