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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2024
Earnings per share [abstract]  
Summary of Earnings per share
    
2024
      2023  
Profit attributable to equity holders of the parent (US$m)
   
 
1,937
 
      1,740  
Weighted average number of shares on issue for basic earnings per share
   
 
1,896,041,815
 
      1,896,624,636  
Effect of dilution from contingently issuable shares
   
 
14,691,983
 
      12,981,487  
Weighted average number of shares on issue adjusted for the effect of dilution
   
 
1,910,733,798
 
      1,909,606,123  
Basic earnings per share (US cents)
   
 
102.2
 
      91.7  
Diluted earnings per share (US cents)
   
 
101.4
 
      91.1