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Collateral for crude oil exploration concession agreements (Details Narrative) - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
IfrsStatementLineItems [Line Items]    
Collateral for crude oil exploration concession agreements, amount $ 1,819 $ 1,748
Exploration and evaluation assets [member]    
IfrsStatementLineItems [Line Items]    
Assets pledged as collateral 1,764 1,648
Exploration And Evaluation Asset [Member]    
IfrsStatementLineItems [Line Items]    
Assets pledged as collateral $ 55 $ 100