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Financial instruments - Summary of fair value of financial instruments (Detail) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023
--- | --- | --- | ---
Assets |  |  |
Cash and cash equivalents | $ 9,256 | $ 9,673 | $ 9,179
Investments in equity shares and funds | 218 | 181 |
Investments in equity shares and funds | 4,454 | 4,407 |
Other investments, including loans | 795 | 1,277 |
Trade and other financial receivables | 3,186 | 3,243 |
Derivatives related to net debt | 37 | 87 |
Liabilities |  |  |
Trade and other financial payables | (6,085) | (6,324) |
Derivatives related to net debt | (532) | (516) |
Not Designated As Hedging Instrument |  |  |
Assets |  |  |
Forward, option and embedded derivatives contracts | 91 | 54 |
Liabilities |  |  |
Forward, option and embedded derivatives contracts | (129) | (92) |
Hedging instruments |  |  |
Liabilities |  |  |
Forward, option and embedded derivatives contracts | (158) | (174) |
Fair value |  |  |
Assets |  |  |
Cash and cash equivalents | 9,256 |  |
Held at amortised cost |  |  |
Assets |  |  |
Cash and cash equivalents | 5,127 | 6,951 |
Investments in equity shares and funds | 0 | 0 |
Other investments, including loans | 21 | 153 |
Trade and other financial receivables | 2,055 | 1,851 |
Derivatives related to net debt | 0 | 0 |
Liabilities |  |  |
Trade and other financial payables | (6,005) | (6,277) |
Derivatives related to net debt | 0 | 0 |
Held at amortised cost | Not Designated As Hedging Instrument |  |  |
Assets |  |  |
Forward, option and embedded derivatives contracts | 0 | 0 |
Liabilities |  |  |
Forward, option and embedded derivatives contracts | 0 | 0 |
Held at amortised cost | Hedging instruments |  |  |
Liabilities |  |  |
Forward, option and embedded derivatives contracts | 0 | 0 |
Level 1 | Fair value |  |  |
Assets |  |  |
Cash and cash equivalents | 4,129 | 2,722 |
Investments in equity shares and funds | 82 | 85 |
Other investments, including loans | 474 | 896 |
Trade and other financial receivables | 16 | 9 |
Derivatives related to net debt | 0 | 0 |
Liabilities |  |  |
Trade and other financial payables | 0 | 0 |
Derivatives related to net debt | 0 | 0 |
Level 1 | Fair value | Not Designated As Hedging Instrument |  |  |
Assets |  |  |
Forward, option and embedded derivatives contracts | 0 | 0 |
Liabilities |  |  |
Forward, option and embedded derivatives contracts | 0 | 0 |
Level 1 | Fair value | Hedging instruments |  |  |
Liabilities |  |  |
Forward, option and embedded derivatives contracts | 0 | 0 |
Level 2 | Fair value |  |  |
Assets |  |  |
Cash and cash equivalents | 0 | 0 |
Investments in equity shares and funds | 0 | 0 |
Other investments, including loans | 0 | 0 |
Trade and other financial receivables | 1,115 | 1,383 |
Derivatives related to net debt | 37 | 87 |
Liabilities |  |  |
Trade and other financial payables | (80) | (47) |
Derivatives related to net debt | (532) | (516) |
Level 2 | Fair value | Not Designated As Hedging Instrument |  |  |
Assets |  |  |
Forward, option and embedded derivatives contracts | 32 | 28 |
Liabilities |  |  |
Forward, option and embedded derivatives contracts | (64) | (63) |
Level 2 | Fair value | Hedging instruments |  |  |
Liabilities |  |  |
Forward, option and embedded derivatives contracts | 0 | 0 |
Level 3 | Fair value |  |  |
Assets |  |  |
Cash and cash equivalents | 0 | 0 |
Investments in equity shares and funds | 136 | 96 |
Other investments, including loans | 300 | 228 |
Trade and other financial receivables | 0 | 0 |
Derivatives related to net debt | 0 | 0 |
Liabilities |  |  |
Trade and other financial payables | 0 | 0 |
Derivatives related to net debt | 0 | 0 |
Level 3 | Fair value | Not Designated As Hedging Instrument |  |  |
Assets |  |  |
Forward, option and embedded derivatives contracts | 59 | 26 |
Liabilities |  |  |
Forward, option and embedded derivatives contracts | (65) | (29) |
Level 3 | Fair value | Hedging instruments |  |  |
Liabilities |  |  |
Forward, option and embedded derivatives contracts | $ (158) | $ (174) |

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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 2023-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_45&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B13 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_i&doctype=Standard -URIDate 2023-03-23 + Details
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