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Collateral for crude oil exploration concession agreements (Details Narrative) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]    
Collateral agreement amount gross $ 1,542 $ 1,770
Marlim [Member]    
IfrsStatementLineItems [Line Items]    
Assets pledged as collateral 1,529 1,756
Buzios [Member]    
IfrsStatementLineItems [Line Items]    
Assets pledged as collateral $ 13 $ 14