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Debt and Capital - Additional information (Detail) - USD ($) $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Debt and capital [line items] |  |  |  |
Undrawn borrowing facilities | $ 10,239 | $ 6,125 |  |
Cash and cash equivalents | $ 6,201 | 3,025 | $ 3,604 | $ 4,058
Description of changes in LIBOR rate | A reasonably possible change in the USD London Interbank Offered Rate (USD LIBOR) (+1.5%/-1.5% (2021: +1.0%/-1.0%)), with all variables held constant, would not have a material impact on the Group’s equity or the income statement in the current period. |  |  |
Other financial assets | $ 797 | 427 |  |
Interest rate swap contract [member] | Cash flow hedges [member] |  |  |  |
Debt and capital [line items] |  |  |  |
Nominal amount of financial instrument interest rate swaps used to hedge credit risk | 600 |  |  |
Interest rate benchmark rates not exposed to cash flow hedge [member] | Currency swap contract [member] |  |  |  |
Debt and capital [line items] |  |  |  |
Derivative financial liabilities | 5 | 9 |  |
Interest rate risk [member] | Interest rate benchmark rates not exposed to cash flow hedge [member] |  |  |  |
Debt and capital [line items] |  |  |  |
Cash and cash equivalents | 6,143 | 2,962 |  |
Interest bearing liabilities excluding transaction costs | 83 | 367 |  |
Other financial assets | $ 167 | $ 0 |  |

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- 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] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2022-03-24 -Paragraph B13 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B -URIDate 2022-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 54 -Subparagraph i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_54_i&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 54 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_54_d&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Description of changes in libor rate. + References No definition available. + Details
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