v3.26.1
RISK MANAGEMENT - Credit quality of financial assets (excluding loan portfolio) - Other accounts receivable at amortized cost - Evaluated using simplified approach (Details) - COP ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of financial assets [line items]    
Financial assets $ 305,457,293 $ 304,853,883
Accumulated impairment [member]    
Disclosure of financial assets [line items]    
Financial assets (8,935,367) (10,478,009)
Trade Receivables And Contract Assets From Individual Customers | Financial instruments credit-impaired [member]    
Disclosure of financial assets [line items]    
Financial assets 995,846 1,071,136
Trade Receivables And Contract Assets From Individual Customers | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 5,374,202 6,400,933
Trade Receivables And Contract Assets From Individual Customers | Accumulated impairment [member]    
Disclosure of financial assets [line items]    
Financial assets $ (221,259) $ (178,739)
Trade Receivables And Contract Assets From Individual Customers | Not later than one month [member]    
Disclosure of financial assets [line items]    
Expected credit loss rate 0.88% 0.54%
Trade Receivables And Contract Assets From Individual Customers | Not later than one month [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets $ 3,808,294 $ 5,021,674
Trade Receivables And Contract Assets From Individual Customers | Not later than one month [member] | Accumulated impairment [member]    
Disclosure of financial assets [line items]    
Financial assets $ (33,380) $ (26,971)
Trade Receivables And Contract Assets From Individual Customers | Later than one month and not later than two months [member]    
Disclosure of financial assets [line items]    
Expected credit loss rate 0.82% 1.11%
Trade Receivables And Contract Assets From Individual Customers | Later than one month and not later than two months [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets $ 113,701 $ 128,404
Trade Receivables And Contract Assets From Individual Customers | Later than one month and not later than two months [member] | Accumulated impairment [member]    
Disclosure of financial assets [line items]    
Financial assets $ (927) $ (1,428)
Trade Receivables And Contract Assets From Individual Customers | Later than two months and not later than three months [member]    
Disclosure of financial assets [line items]    
Expected credit loss rate 0.22% 0.94%
Trade Receivables And Contract Assets From Individual Customers | Later than two months and not later than three months [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets $ 456,361 $ 179,719
Trade Receivables And Contract Assets From Individual Customers | Later than two months and not later than three months [member] | Accumulated impairment [member]    
Disclosure of financial assets [line items]    
Financial assets $ (1,022) $ (1,682)
Trade Receivables And Contract Assets From Individual Customers | Later than three months [member]    
Disclosure of financial assets [line items]    
Expected credit loss rate 18.67% 13.88%
Trade Receivables And Contract Assets From Individual Customers | Later than three months [member] | Financial instruments credit-impaired [member]    
Disclosure of financial assets [line items]    
Financial assets $ 995,846 $ 1,071,136
Trade Receivables And Contract Assets From Individual Customers | Later than three months [member] | Gross carrying amount [member]    
Disclosure of financial assets [line items]    
Financial assets 995,846 1,071,136
Trade Receivables And Contract Assets From Individual Customers | Later than three months [member] | Accumulated impairment [member]    
Disclosure of financial assets [line items]    
Financial assets $ (185,930) $ (148,658)