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Consortia (partnerships) in E&P activities (Details)
$ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
Agua Marinha [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Água-Marinha
Location Campos basin
Proportion of ownership interest in joint operation 30.00%
Operator Petrobras
Year 2023
Additional Information 1st Cycle of Permanent Offer for Production Sharing
ANP Bonus Petrobras portion $ 4
Sudoeste De Sagitario [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Sudoeste de Sagitário
Location Santos basin
Proportion of ownership interest in joint operation 60.00%
Operator Petrobras
Year 2023
Additional Information 1st Cycle of Permanent Offer for Production Sharing
ANP Bonus Petrobras portion $ 40
Atapu [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Atapu
Location Santos basin
Proportion of ownership interest in joint operation 52.50%
Operator Petrobras
Year 2022
Additional Information Production sharing
ANP Bonus Petrobras portion $ 402
Sepia [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Sépia
Location Santos basin
Proportion of ownership interest in joint operation 30.00%
Operator Petrobras
Year 2022
Additional Information Production sharing
ANP Bonus Petrobras portion $ 409