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Schedule of income tax and minimum notional income tax liability (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
IfrsStatementLineItems [Line Items]    
Non current income tax and minimum notional income tax provision $ 188 $ 131
Current income tax and minimum notional income tax provision 20 11
Income Tax Net Of Witholdings And Advances [Member]    
IfrsStatementLineItems [Line Items]    
Non current income tax and minimum notional income tax provision 158 131
Current income tax and minimum notional income tax provision 20 11
Minimum National Income Tax [Member]    
IfrsStatementLineItems [Line Items]    
Non current income tax and minimum notional income tax provision $ 30