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Inventories (Tables)

12 Months Ended

Dec. 31, 2020

Disclosure Of Inventories [Abstract]

Summary of inventories


			2020 US$m			2019 US$m
Raw materials and purchased components			640			675
Consumable stores			1,050			925
Work in progress			1,288			1,066
Finished goods and goods for resale			1,113			936
Total inventories			4,091			3,602
Comprising:
Expected to be used within one year			3,917			3,463
Expected to be used after more than one year			174			139
Total inventories			4,091			3,602