v3.26.1
FINANCIAL OBLIGATIONS - Issued bonds by issued date and maturity date - Additional information (Details)
$ in Millions
12 Months Ended
Nov. 19, 2025
COP ($)
Oct. 12, 2025
COP ($)
Sep. 24, 2025
COP ($)
Aug. 12, 2025
COP ($)
Mar. 10, 2025
COP ($)
Mar. 02, 2025
COP ($)
Feb. 12, 2025
COP ($)
Feb. 04, 2025
COP ($)
Jan. 30, 2025
COP ($)
Jan. 23, 2025
COP ($)
Dec. 31, 2025
COP ($)
$ / $
Dec. 31, 2024
COP ($)
$ / $
Dec. 31, 2023
COP ($)
Aug. 15, 2025
COP ($)
May 15, 2025
COP ($)
Feb. 13, 2025
COP ($)
Disclosure of detailed information about borrowings [line items]                                
Payments of bonds                     $ 1,513,644 $ 1,725,323 $ 3,934,469      
Bonds issued                     21,456,986 26,215,847        
Interest expense on bonds                     1,542,457 1,676,593 $ 2,049,348      
Colombia, Pesos                                
Disclosure of detailed information about borrowings [line items]                                
Bonds issued                     8,531,016 9,472,568        
Colombia, Pesos | Banco de Bogota S.A.                                
Disclosure of detailed information about borrowings [line items]                                
Payments of bonds     $ 186,135                          
Bonds issued                     902,401 1,088,630        
Colombia, Pesos | Banco de Occidente S.A.                                
Disclosure of detailed information about borrowings [line items]                                
Payments of bonds   $ 255,359             $ 203,139              
Bonds issued                     1,419,919 1,876,405        
Colombia, Pesos | Corporacion Financiera Colombiana S.A.                                
Disclosure of detailed information about borrowings [line items]                                
Payments of bonds $ 101,085         $ 129,220       $ 107,442            
Bonds issued                     4,126,514 3,871,660   $ 350,000 $ 48,800 $ 133,100
Bonds issued, current                           $ 60,761    
Colombia, Pesos | Banco Popular S.A.                                
Disclosure of detailed information about borrowings [line items]                                
Payments of bonds         $ 342,187     $ 222,664                
Bonds issued                     816,093 1,370,950        
Foreign currency [member]                                
Disclosure of detailed information about borrowings [line items]                                
Bonds issued                     12,925,970 16,743,279        
Foreign currency [member] | Banco de Bogota S.A. and MFH                                
Disclosure of detailed information about borrowings [line items]                                
Bonds issued                     6,587,469 9,316,131        
Foreign currency [member] | Banco de Occidente S.A.                                
Disclosure of detailed information about borrowings [line items]                                
Bonds issued                     $ 677,521 791,791        
TRM variation year over year | $ / $                     36,245          
Interest expense on bonds       $ 38,499     $ 39,526                  
Foreign currency [member] | Grupo Aval Limited                                
Disclosure of detailed information about borrowings [line items]                                
Bonds issued                     $ 3,777,033 $ 4,428,224        
TRM variation year over year | $ / $                     (652.07) (652.07)