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Related Parties (Tables)
 12 Months Ended
Dec. 31, 2021
Text Block [Abstract]  
Summary of Compensation to Directors and Executive Officers
 
i)
Transactions with key management personnel compensation
Compensation to Directors and executive officers of the Group comprised the following:
 
    
2021
     
2020
     
2019
  
(in $ millions)
   
$
     
$
     
$
  
Short-term employee benefits
      4         2        2  
Post-employment benefits
      *        *        *  
Share-based payment
      172         24        6  
 
 
*
Amount less than $1 million