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Cash and cash equivalents - Summary of Restricted Cash and Cash Equivalents (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Disclosure of Restricted Cash And Cash Equivalents [Line Items]
Restricted cash and cash equivalents	$ 22	$ 56
Local Countries [Member]
Disclosure of Restricted Cash And Cash Equivalents [Line Items]
Restricted cash and cash equivalents	2	30
UK Portfolio [member]
Disclosure of Restricted Cash And Cash Equivalents [Line Items]
Restricted cash and cash equivalents	15	14
Other Restrictions [Member]
Disclosure of Restricted Cash And Cash Equivalents [Line Items]
Restricted cash and cash equivalents	$ 5	$ 12

X

- Definition

The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard
-URIDate 2024-03-27

+ Details

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Balance Type:	debit
Period Type:	instant

X

- Definition

Disclosure of restricted cash and cash equivalents.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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X

- Details

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