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Trade and other receivables (Tables)
12 Months Ended
Dec. 31, 2021
Text Block [Abstract]  
Summary of Trade and other receivables
    
2021
    
2020
 
(in $ millions)
  
$
    
$
 
Current
                 
Trade receivables
     117        124  
Less: Loss allowance (see Note 25)
     (22      (40
       95        84  
Loans and advances
     118        40  
Less: Loss allowance (see Note 25)
     (11      (9
       107        31  
Payment cycle receivables
     71        69  
Less: Loss allowance
     (18      (12
       53        57  
       255        172