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Taxes (Details 6) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]    
Unrecognized tax carry forwards $ 987 $ 1,352
Later Than Seven Years And Not Later Than Nine Years [Member]    
IfrsStatementLineItems [Line Items]    
Unrecognized tax carry forwards 418  
Later Than Eleven Years And Not Later Than Thirteen Years [Member]    
IfrsStatementLineItems [Line Items]    
Unrecognized tax carry forwards 339  
Later Than Fourteen Years And Not Later Than Sixteen Years [Member]    
IfrsStatementLineItems [Line Items]    
Unrecognized tax carry forwards 167  
Undefined Expiration [Member]    
IfrsStatementLineItems [Line Items]    
Unrecognized tax carry forwards $ 63