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Other Reserves - Summary of Information About Other Reserves (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of reserves within equity [abstract]
Employee benefits reserve	$ 290	$ 278	$ 232
Foreign currency translation reserve	795	796	793
Hedging reserve	88	(586)	(400)
Distributable profits reserve	4,118	3,541	58
Other reserves	(30)	2
Total	$ 5,261	$ 4,031	$ 683

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- References

No definition available.

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- Definition

A component of equity representing reserves within equity, not including retained earnings. [Refer: Retained earnings]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
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-URIDate 2023-03-23

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- Definition

A component of equity representing the accumulated portion of gain (loss) on a hedging instrument that is determined to be an effective hedge for cash flow hedges. [Refer: Cash flow hedges [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 78
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 9
-IssueDate 2023-01-01
-Paragraph 6.5.11
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- Definition

A component of equity representing exchange differences on translation of financial statements recognised in other comprehensive income and accumulated in equity. [Refer: Other comprehensive income]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 21
-IssueDate 2023-01-01
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=21&code=ifrs-tx-2023-en-r&anchor=para_52_b&doctype=Standard
-URIDate 2023-03-23

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- Definition

A component of equity representing the accumulated remeasurements of defined benefit plans. [Refer: Defined benefit plans [member]]

+ References

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-Name IAS
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- Definition

Distributable profits reserve.

+ References

No definition available.

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- Definition

Other reserves classified as other.

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No definition available.

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