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RISK MANAGEMENT - Trading book risk - Net position (Details) - COP ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Financial assets $ 280,746,878 $ 274,682,875
Financial liabilities 249,900,662 247,219,098
Market risk [member]    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Financial assets 32,568,274 28,286,329
Financial liabilities 2,371,927 1,761,174
Net position $ 30,196,347 $ 26,525,155