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GOODWILL - Roll forward - Tabular disclosure (Details) - COP ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Reconciliation of changes in goodwill [abstract]    
Balance at the beginning of the year $ 2,202,222 $ 2,248,217
Impairment charge   (10,000)
Effect of movements in exchange rates 21,386 (35,995)
Balance at the end of the year $ 2,223,608 $ 2,202,222