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Accrued liabilities and provisions - Litigation (Details) - COP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
CTEEP Regulatory Contingency, Case [Member]    
Accrued liabilities and provisions    
Legal proceedings in process, damages sought, value $ 34,846 $ 40,692
Property and Urban Land Tax (IPTU) CTEEP case    
Accrued liabilities and provisions    
Legal proceedings in process, damages sought, value 20,228 23,691
Direct fixing for the damages associated with the hydrocarbon spill case    
Accrued liabilities and provisions    
Legal proceedings in process, damages sought, value 14,245 14,245
Administrative processes case    
Accrued liabilities and provisions    
Legal proceedings in process, damages sought, value 10,161 11,675
Public Works Contributions, Case    
Accrued liabilities and provisions    
Legal proceedings in process, damages sought, value 6,792 223,439
Open competition for the management of a set of assets transferred case    
Accrued liabilities and provisions    
Legal proceedings in process, damages sought, value 5,774 5,774
Damages caused by export activities    
Accrued liabilities and provisions    
Legal proceedings in process, damages sought, value $ 5,428 $ 4,680