XML 201 R154.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Financial and capital risk management (Details 7) - Risk U S Libor Decrease [Member]
$ in Millions
Dec. 31, 2023
USD ($)
U S Floating Rate Versus U S Fixed Swap Rate [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities $ (25)
U S Floating Rate Versus U S Fixed Swap Rate [Member] | Sensitivity Scenario I [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (67)
U S Floating Rate Versus U S Fixed Swap Rate [Member] | Sensitivity Scenario Ii [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (111)
Protected Item Libor U S Indexed Debt [Member] | Sensitivity Scenario I [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities 67
Protected Item Libor U S Indexed Debt [Member] | Sensitivity Scenario Ii [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities $ 111