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Risk management (Details 1) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
IfrsStatementLineItems [Line Items]    
Notional value $ 65,138  
Fair Value Of Derivative Financial Assets (Liability) 20 $ (120)
Derivatives Not Designated For Hedge Accounting [Member] | Long Position Or Foreign Currency One [Member]    
IfrsStatementLineItems [Line Items]    
Notional value $ 2,527 9,058
Description of derivative maturity period 2024  
Derivatives Not Designated For Hedge Accounting [Member] | Short Position Or Crude Oil And Oil Products One [Member]    
IfrsStatementLineItems [Line Items]    
Notional value $ (3,580) (8,375)
Description of derivative maturity period 2024  
Derivatives Not Designated For Hedge Accounting [Member] | Short Position Soybean Oil [Member]    
IfrsStatementLineItems [Line Items]    
Notional value $ (1) (3)
Description of derivative maturity period 2024  
Futures contract [member] | Derivatives Not Designated For Hedge Accounting [Member]    
IfrsStatementLineItems [Line Items]    
Notional value $ (1,053) 683
Fair Value Of Derivative Financial Assets (Liability) 1 (40)
Forward contract [member] | Derivatives Not Designated For Hedge Accounting [Member] | Short Position Or Foreign Currency Forwards Brl Usd [Member]    
IfrsStatementLineItems [Line Items]    
Notional value $ 1  
Description of derivative maturity period 2024  
Swap contract [member] | Derivatives Not Designated For Hedge Accounting [Member]    
IfrsStatementLineItems [Line Items]    
Notional value $ 3,008 3,008
Swap contract [member] | Derivatives Not Designated For Hedge Accounting [Member] | I P C A [Member]    
IfrsStatementLineItems [Line Items]    
Fair Value Of Derivative Financial Assets (Liability) $ 68 (16)
Description of derivative maturity period 2029/2034  
Swap contract [member] | Derivatives Not Designated For Hedge Accounting [Member] | Foreign Currency Or Cross Currency Swap [Member]    
IfrsStatementLineItems [Line Items]    
Notional value $ 729 729
Fair Value Of Derivative Financial Assets (Liability) $ (49) $ (64)
Description of derivative maturity period 2024/2029