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Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2023
Earnings per share [abstract]  
Summary of Earnings per share
    
2023
     
2022
     
2021
  
 
  
Profit attributable to equity holders of the parent (US$m)
   
 
1,660
 
   
 
6,498
 
   
 
1,983
 
Weighted average number of shares on issue for basic earnings per share
   
 
1,896,498,169
 
   
 
1,511,257,404
 
   
 
962,604,811
 
Effect of dilution from contingently issuable shares
   
 
14,444,802
 
   
 
13,061,376
 
   
 
9,023,439
 
Weighted average number of shares on issue adjusted for the effect of dilution
   
 
1,910,942,971
 
   
 
1,524,318,780
 
   
 
971,628,250
 
Basic earnings per share (US cents)
   
 
87.5
 
   
 
430.0
 
   
 
206.0
 
Diluted earnings per share (US cents)
   
 
86.9
 
   
 
426.3
 
   
 
204.1