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Inventories (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure Of Inventories [Abstract]

Summary of inventories



	2019 US$m		2018 US$m
Raw materials and purchased components	675		734
Consumable stores	925		862
Work in progress	1,066		1,026
Finished goods and goods for resale	936		977
Total inventories	3,602		3,599
Comprising:
Expected to be used within one year	3,463		3,447
Expected to be used after more than one year	139		152
Total inventories	3,602		3,599