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Schedule of guarantees given as collateral (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]    
Guarantees given as collateral $ 245 $ 42
Commodity derivatives [member]    
IfrsStatementLineItems [Line Items]    
Guarantees given as collateral 111 15
currency derivatives [member]    
IfrsStatementLineItems [Line Items]    
Guarantees given as collateral $ 134 $ 27