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Inventories (Tables)
 12 Months Ended
Dec. 31, 2023
Disclosure Of Inventories [Abstract]  
Summary of inventories
2023
US$m
2022
US$m
Raw materials and purchased components
1,050
1,235
Consumable stores
1,520
1,327
Work in progress
2,467
2,086
Finished goods and goods for resale
1,836
1,768
Total inventories
6,873
6,416
Comprising:
Expected to be used within one year
6,659
6,213
Expected to be used after more than one year
214
203
Total inventories
6,873
6,416