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Equity - Ecopetrol Business Groups reserves (Details) - COP ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Equity    
Equity reserves $ 17,922,725 $ 8,898,633
Legal reserve    
Equity    
Equity reserves 9,747,885 6,407,256
Fiscal and statutory reserves    
Equity    
Equity reserves 509,082 509,082
Occasional reserves    
Equity    
Equity reserves $ 7,665,758 $ 1,982,295