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Net Debt - Summary of Net Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of net debt [abstract]
Cash and cash equivalents	$ 1,008	$ 1,322
Loans and other borrowings - current	(398)	(599)
Loans and other borrowings - non-current	(2,876)	(2,567)
Lease liabilities-current	(26)	(30)
Lease liabilities-non current	(388)	(396)
Principal amounts payable on maturity of derivative financial instruments (note 23)	(102)	(2)
Net debt	$ (2,782)	$ (2,272)	$ (1,851)

X

- Definition

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

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- Definition

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- Definition

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Principal amounts payable receivable on maturity of derivative financial instruments swapping debt values.

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