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Other financial assets - Schedule of Movement in the Allowance For Expected Lifetime Credit Losses (Parenthetical) (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of financial assets [line items] |  |
Utilisation, Allowance account for credit losses of financial assets | $ 17 | $ 8
Acquired Asset [Member] |  |
Disclosure of financial assets [line items] |  |
Utilisation, Allowance account for credit losses of financial assets |  | 4
Assets other than cash or cash equivalents in subsidiary or businesses acquired or disposed |  | $ 0

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- Definition The amount of assets, other than cash or cash equivalents, in subsidiaries or other businesses over which control is obtained or lost. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 40 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_40_d&doctype=Standard -URIDate 2022-03-24 + Details
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Balance Type: | debit
Period Type: | duration

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The decrease in an allowance account for credit losses of financial assets resulting from the utilisation of the allowance. [Refer: Allowance account for credit losses of financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2023-01-01 -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b -URIDate 2022-03-24 + Details
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- Details
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Period Type: |