v3.26.1
RISK MANAGEMENT - Structural foreign exchange risk - Financial liabilities (Details)
$ in Millions, $ in Millions
Dec. 31, 2025
COP ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
COP ($)
Dec. 31, 2024
USD ($)
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities $ 278,063,105   $ 274,729,544  
Currency risk [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 44,887,422 $ 11,934 68,785,886 $ 15,748
Other Currency [Member] | Currency risk [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities   14   43
Financial liabilities at fair value through profit or loss, category [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 1,986,281   1,033,592  
Financial liabilities at amortised cost, category [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 276,076,824   273,695,952  
Trading derivatives [member] | Financial liabilities at fair value through profit or loss, classified as held for trading, category [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 1,951,439   1,011,934  
Customer deposits [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 207,405,238   200,872,177  
Customer deposits [member] | Financial liabilities at amortised cost, category [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 207,405,238   200,872,177  
Customer deposits [member] | Financial liabilities at amortised cost, category [member] | Currency risk [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 16,107,271 4,283 32,100,339 7,246
Customer deposits [member] | Financial liabilities at amortised cost, category [member] | Other Currency [Member] | Currency risk [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities   5   34
Financial obligations [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 68,671,586   72,823,775  
Financial obligations [member] | Financial liabilities at amortised cost, category [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 68,671,586   72,823,775  
Financial obligations [member] | Financial liabilities at amortised cost, category [member] | Currency risk [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 27,716,615 7,369 36,432,897 8,258
Financial obligations [member] | Financial liabilities at amortised cost, category [member] | Other Currency [Member] | Currency risk [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities   8   5
Derivatives [member] | Trading derivatives [member]        
Disclosure of nature and extent of risks arising from financial instruments [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 nature and extent of risks arising from financial instruments [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] | Currency risk [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 1,053,795 279 236,242 243
Derivatives [member] | Trading derivatives [member] | Financial liabilities at fair value through profit or loss, classified as held for trading, category [member] | Other Currency [Member] | Currency risk [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities   1   4
Derivatives [member] | Hedging instruments [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 34,842   21,658  
Derivatives [member] | Hedging instruments [member] | Financial liabilities at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities 34,842   21,658  
Derivatives [member] | Hedging instruments [member] | Financial liabilities at fair value through profit or loss, mandatorily measured at fair value, category [member] | Currency risk [member]        
Disclosure of nature and extent of risks arising from financial instruments [line items]        
Financial liabilities $ 9,741 $ 3 $ 16,408 $ 1