v3.25.2
Financial and capital risk management (Details 7)
$ in Millions
Jun. 30, 2025
USD ($)
Bunker Crude Oil [Member] | Risk Bunker Oil Price Decrease [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities $ 6
Bunker Crude Oil [Member] | Risk Bunker Oil Price Decrease [Member] | Sensitivity Scenario I [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (139)
Bunker Crude Oil [Member] | Risk Bunker Oil Price Decrease [Member] | Sensitivity Scenario Ii [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (390)
Forwards Frieght [Member] | Risk Bunker Oil Price Decrease [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (5)
Forwards Frieght [Member] | Risk Bunker Oil Price Decrease [Member] | Sensitivity Scenario I [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (25)
Forwards Frieght [Member] | Risk Bunker Oil Price Decrease [Member] | Sensitivity Scenario Ii [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (45)
Hedge Fixed Price Nickel Sales [Member] | Risk Nickel Price Decrease [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (3)
Hedge Fixed Price Nickel Sales [Member] | Risk Nickel Price Decrease [Member] | Sensitivity Scenario I [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (16)
Hedge Fixed Price Nickel Sales [Member] | Risk Nickel Price Decrease [Member] | Sensitivity Scenario Ii [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities $ (29)