v3.26.3
Financial risk management (Details 3) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
IfrsStatementLineItems [Line Items]    
Notional value $ 72,445  
Fair value of derivative financial assets (liability) 24 $ (25)
Foreign Exchange Rate Risk [Member] | Cross Currency Swap C D I X U S [Member] | Derivatives Not Designated For Hedge Accounting [Member]    
IfrsStatementLineItems [Line Items]    
Notional value 488 488
Fair value of derivative financial assets (liability) $ (50) (85)
Maturity 2029  
Foreign Exchange Rate Risk [Member] | Short Position Foreign Currency Forwards [Member] | Derivatives Not Designated For Hedge Accounting [Member]    
IfrsStatementLineItems [Line Items]    
Notional value $ (31) (20)
Maturity 2026  
Interest rate risk [member] | Swap contract [member] | Derivatives Not Designated For Hedge Accounting [Member]    
IfrsStatementLineItems [Line Items]    
Notional value $ 3,312 3,008
Fair value of derivative financial assets (liability) 69 53
Price Risk [Member] | Future Contracts Crude Oil And Oil Products [Member] | Derivatives Not Designated For Hedge Accounting [Member]    
IfrsStatementLineItems [Line Items]    
Notional value 409 (3,045)
Fair value of derivative financial assets (liability) $ 5 7
Maturity 2026  
Price Risk [Member] | Swap Short Position Soybean Oil [Member] | Derivatives Not Designated For Hedge Accounting [Member]    
IfrsStatementLineItems [Line Items]    
Notional value $ 9  
Maturity 2026  
Price Risk [Member] | Options Long Put Soybean Oil [Member] | Derivatives Not Designated For Hedge Accounting [Member]    
IfrsStatementLineItems [Line Items]    
Notional value   $ (4)
Maturity 2026