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Risk management - Hedge of a net investment in a foreign operation (Details) - Hedge of a net investment in a foreign operation
$ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2023
USD ($)
Dec. 31, 2023
COP ($)
Dec. 31, 2022
COP ($)
Dec. 31, 2021
COP ($)
Risk management        
Opening balance   $ 9,354,071 $ 4,366,336 $ 1,494,926
Exchange difference   (8,973,471) 7,526,124 4,579,758
Deferred income tax (Note 10)   2,760,084 (2,538,389) (1,708,348)
Closing balance $ 10,270 $ 3,140,684 9,354,071 4,366,336
Hedging instrument assets 10,270   $ 9,354,071 $ 4,366,336
Ecopetrol Business Group        
Risk management        
Closing balance 9,942      
Hedging instrument assets 9,942      
ISA Colombia        
Risk management        
Closing balance 328      
Hedging instrument assets $ 328