v3.26.1
RISK MANAGEMENT - Offset of financial liabilities (Details) - COP ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of offsetting of financial liabilities [line items]    
Gross financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements $ 23,770,627 $ 18,720,381
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position 23,770,627 18,720,381
Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities (22,692,861) (20,927,405)
Cash collateral pledged subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities (453,643) (408,732)
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements 624,123 (2,615,756)
Derivatives    
Disclosure of offsetting of financial liabilities [line items]    
Gross financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements 1,986,281 1,033,592
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position 1,986,281 1,033,592
Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities (335,732) (208,181)
Cash collateral pledged subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities (269,536) (71,745)
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements 1,381,013 753,666
Repurchase agreements    
Disclosure of offsetting of financial liabilities [line items]    
Gross financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements 21,784,346 17,686,789
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position 21,784,346 17,686,789
Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities (22,357,129) (20,719,224)
Cash collateral pledged subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities (184,107) (336,987)
Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements $ (756,890) $ (3,369,422)