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Income and Expenses - Summary of Other Operating Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Material income and expense [abstract]
Impairment of goodwill	$ 8	$ 28	$ 28
Others	3	12	2
Other expenses	$ 11	$ 40	$ 30

X

- Definition

The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]]

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No definition available.

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X

- Definition

The amount of miscellaneous other operating expenses. [Refer: Other operating income (expense)]

+ References

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- Definition

The amount of expenses that the entity does not separately disclose in the same statement or note when the entity uses the 'nature of expense' form for its analysis of expenses. [Refer: Expenses, by nature]

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