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Inventories (Tables)
 12 Months Ended
Dec. 31, 2024
Disclosure Of Inventories [Abstract]  
Summary of inventories
2024
US$m
2023
US$m
Raw materials and purchased components
971
1,050
Consumable stores
1,560
1,520
Work in progress
1,931
2,467
Finished goods and goods for resale
1,620
1,836
Total inventories
6,082
6,873
Comprising:
Expected to be used within one year
5,860
6,659
Expected to be used after more than one year
222
214
Total inventories
6,082
6,873