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Inventories - Summary of Inventories (Detail) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
(a) Inventories (current)    
Goods in transit $ 41 $ 95
Finished stocks 93 103
Warehouse stores and materials 476 480
Carbon credits [1] 6 0
Current inventories [1] 616 678
(b) Inventories (non-current)    
Warehouse stores and materials 3 11
Carbon credits [1] 117 54
Non-current inventories [1] $ 120 $ 65
[1] Inventories include carbon credits which were previously presented within other assets (non-current). The 2022 amounts have been reclassified to be presented on the same basis.