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Consortia (partnerships) in E&P activities (Details)
12 Months Ended
Dec. 31, 2024
IfrsStatementLineItems [Line Items]  
Petrobras production portion in 2020 (kboed) 1,617
Tupi [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Tupi
Location Santos basin pre-salt
Partners 65.00%
Petrobras production portion in 2020 (kboed) 666
Regime Concession
Tupi [Member] | Shell [Member]  
IfrsStatementLineItems [Line Items]  
Partners 25.00%
Tupi [Member] | Petrogal [Member]  
IfrsStatementLineItems [Line Items]  
Partners 10.00%
Buzios [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Búzios ECO
Location Santos basin pre-salt
Partners 85.00%
Petrobras production portion in 2020 (kboed) 501
Regime Production sharing
Bzios [Member] | CNODC [Member]  
IfrsStatementLineItems [Line Items]  
Partners 10.00%
Bzios [Member] | CNOOC [Member]  
IfrsStatementLineItems [Line Items]  
Partners 5.00%
Mero [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Mero
Location Santos basin pre-salt
Partners 40.00%
Petrobras production portion in 2020 (kboed) 136
Regime Production sharing
Mero [Member] | Shell [Member]  
IfrsStatementLineItems [Line Items]  
Partners 20.00%
Mero [Member] | CNODC [Member]  
IfrsStatementLineItems [Line Items]  
Partners 10.00%
Mero [Member] | CNOOC [Member]  
IfrsStatementLineItems [Line Items]  
Partners 10.00%
Mero [Member] | Total Energies [Member]  
IfrsStatementLineItems [Line Items]  
Partners 20.00%
Roncador [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Roncador
Location Campos basin
Partners 75.00%
Petrobras production portion in 2020 (kboed) 85
Regime Concession
Roncador [Member] | Equinor [Member]  
IfrsStatementLineItems [Line Items]  
Partners 25.00%
Sapinhoa [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Sapinhoá
Location Santos basin pre-salt
Partners 45.00%
Petrobras production portion in 2020 (kboed) 77
Regime Concession
Sapinhoa [Member] | Shell [Member]  
IfrsStatementLineItems [Line Items]  
Partners 30.00%
Sapinhoa [Member] | Repsol Sinopec [Member]  
IfrsStatementLineItems [Line Items]  
Partners 25.00%
Atapu [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Atapu ECO
Location Santos basin pre-salt
Partners 52.50%
Petrobras production portion in 2020 (kboed) 47
Regime Production sharing
Atapu [Member] | Shell [Member]  
IfrsStatementLineItems [Line Items]  
Partners 25.00%
Atapu [Member] | Total Energies [Member]  
IfrsStatementLineItems [Line Items]  
Partners 22.50%
Berbigao [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Berbigão
Location Santos basin pre-salt
Partners 42.50%
Petrobras production portion in 2020 (kboed) 31
Regime Concession
Berbigao [Member] | Shell [Member]  
IfrsStatementLineItems [Line Items]  
Partners 25.00%
Berbigao [Member] | Petrogal [Member]  
IfrsStatementLineItems [Line Items]  
Partners 10.00%
Berbigao [Member] | Total Energies [Member]  
IfrsStatementLineItems [Line Items]  
Partners 22.50%
Sururu [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Sururu
Location Santos basin pre-salt
Partners 42.50%
Petrobras production portion in 2020 (kboed) 29
Regime Concession
Sururu [Member] | Shell [Member]  
IfrsStatementLineItems [Line Items]  
Partners 25.00%
Sururu [Member] | Petrogal [Member]  
IfrsStatementLineItems [Line Items]  
Partners 10.00%
Sururu [Member] | Total Energies [Member]  
IfrsStatementLineItems [Line Items]  
Partners 22.50%
Tartaruga Verde [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Tartaruga Verde
Location Campos basin
Partners 50.00%
Petrobras production portion in 2020 (kboed) 26
Regime Concession
Tartaruga Verde [Member] | Petrogal [Member]  
IfrsStatementLineItems [Line Items]  
Partners 50.00%
Sepia [Member]  
IfrsStatementLineItems [Line Items]  
Name of joint operation Sépia ECO
Location Santos basin pre-salt
Partners 30.00%
Petrobras production portion in 2020 (kboed) 19
Regime Production sharing
Sepia [Member] | Petrogal [Member]  
IfrsStatementLineItems [Line Items]  
Partners 21.00%
Sepia [Member] | Total Energies [Member]  
IfrsStatementLineItems [Line Items]  
Partners 28.00%
Sepia [Member] | Country Of Qatar [Member]  
IfrsStatementLineItems [Line Items]  
Partners 21.00%