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Net debt - Analysis of changes in consolidated net debt (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of financial liabilities [Line Items] |  |
Net debt, beginning balance | $ (4,231) | $ (4,188)
Net debt, foreign exchange adjustment | (4) | (69)
Net debt, cash movements excluding exchange movements | (711) | 663
Net debt, other non-cash movements | (545) | (637)
Net debt, ending balance | (5,491) | (4,231)
Overdrafts | 11 | 1
Highly liquid financial assets held in managed investment funds classified as held for trading | 212 | 877
Borrowings excluding overdrafts |  |
Disclosure of financial liabilities [Line Items] |  |
Financial liabilities, beginning balance | (13,000) | (11,070)
Financial liabilities, foreign exchange adjustment | 57 | (87)
Financial liabilities,, cash movements excluding exchange movements | 494 | (1,523)
Financial liabilities,, other non-cash movements | 18 | (320)
Financial liabilities, ending balance | (12,431) | (13,000)
Lease liabilities |  |
Disclosure of financial liabilities [Line Items] |  |
Financial liabilities, beginning balance | (1,351) | (1,200)
Financial liabilities, foreign exchange adjustment | 69 | (21)
Financial liabilities,, cash movements excluding exchange movements | 455 | 426
Financial liabilities,, other non-cash movements | (586) | (556)
Financial liabilities, ending balance | (1,413) | (1,351)
Derivatives related to net debt |  |
Disclosure of financial liabilities [Line Items] |  |
Financial liabilities, beginning balance | (429) | (690)
Financial liabilities, foreign exchange adjustment | (30) | 62
Financial liabilities,, cash movements excluding exchange movements | 104 | (4)
Financial liabilities,, other non-cash movements | 12 | 203
Financial liabilities, ending balance | (343) | (429)
Cash and cash equivalents including overdrafts |  |
Disclosure of financial liabilities [Line Items] |  |
Cash and cash equivalents including overdrafts and other investments, beginning balance | 9,672 | 6,774
Cash and cash equivalents including overdrafts and other investments, foreign exchange adjustment | (99) | (23)
Cash and cash equivalents including overdrafts and other investments, cash movements excluding exchange movements | (1,089) | 2,921
Cash and cash equivalents including overdrafts and other investments, other non-cash movements | 0 | 0
Cash and cash equivalents including overdrafts and other investments, ending balance | 8,484 | 9,672
Other investments |  |
Disclosure of financial liabilities [Line Items] |  |
Cash and cash equivalents including overdrafts and other investments, beginning balance | 877 | 1,998
Cash and cash equivalents including overdrafts and other investments, foreign exchange adjustment | (1) | 0
Cash and cash equivalents including overdrafts and other investments, cash movements excluding exchange movements | (675) | (1,157)
Cash and cash equivalents including overdrafts and other investments, other non-cash movements | 11 | 36
Cash and cash equivalents including overdrafts and other investments, ending balance | $ 212 | $ 877

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- Definition The amount that has been withdrawn from an account in excess of existing cash balances. This is considered a short-term extension of credit by the bank. [Refer: Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of financial assets at fair value through profit or loss classified as held for trading. A financial asset is classified as held for trading if: (a) it is acquired principally for the purpose of selling it in the near term; (b) on initial recognition it is part of a portfolio of identified financial instruments that are managed together and for which there is evidence of a recent actual pattern of short-term profit-taking; or (c) it is a derivative (except for a derivative that is a financial guarantee contract or a designated and effective hedging instrument). [Refer: At fair value [member]; Financial assets at fair value through profit or loss, mandatorily measured at fair value] + 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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