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Inventories - Summary of Inventories (Parenthetical) (Detail) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Classes of inventories [line items]
Work-in-progress	[1]	$ 136	$ 144
Construction contracts [member]
Classes of inventories [line items]
Work-in-progress		$ 9	$ 9
[1] Work-in-progress includes $9 million (2020: $9 million) in respect of the cumulative costs incurred, net of amounts transferred to cost of sales under percentage-of-completion accounting, for construction contracts in progress at the balance sheet date.

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- Definition

Classes of inventories [line items]

+ References

No definition available.

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- Definition

A classification of current inventory representing the amount of assets currently in production, which require further processes to be converted into finished goods or services. [Refer: Current finished goods; Inventories]

+ References

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