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Auditor's remuneration - Summary of Auditor's Remuneration Paid (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Auditors Remuneration [Line Items] |  |  |
Audit of the Financial Statements | $ 6 | $ 4 | $ 4
Audit of subsidiaries | 2 | 3 | 3
Other assurance services | 1 | 1 | 1
Total expense related to remuneration | 9 | 8 | 8
SEC Regulations [Member] |  |  |
Auditors Remuneration [Line Items] |  |  |
Audit of the Financial Statements | 8 | 7 | 7
Other audit-related | 1 | 1 | 1
Total expense related to remuneration | $ 9 | $ 8 | $ 8

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- Definition The amount of fees paid or payable to the entity's auditors. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of fees paid or payable to the entity's auditors for auditing services. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Auditors remuneration for audit of subsidiary financial statements. + References No definition available. + Details
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- Definition Auditors remuneration for Assurance services not related to the audit. + References No definition available. + Details
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- Definition Auditors remuneration for other audit related services. + References No definition available. + Details
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- Definition Auditors remuneration. + References No definition available. + Details
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- Details
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