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Tax - Summary of Deferred Tax (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | $ 48 | $ 54
Group income statement | 13 | 12
Group statement of comprehensive income | (11) | 1
Group statement of changes in equity | 6 | 1
Exchange and other adjustments | 10 | (20)
Ending balance | 66 | 48
Deferred gains on loan notes [member] |  |
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | (34) | (34)
Group income statement | 0 | 0
Group statement of comprehensive income | 0 | 0
Group statement of changes in equity | 0 | 0
Exchange and other adjustments | 0 |
Ending balance | (34) | (34)
Associates [member] |  |
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | (59) | (55)
Group income statement | (1) | (4)
Group statement of comprehensive income | 0 | 0
Group statement of changes in equity | 0 | 0
Exchange and other adjustments | 0 |
Ending balance | (60) | (59)
Losses [member] |  |
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | 79 | 84
Group income statement | 0 | 5
Group statement of comprehensive income | (6) | (1)
Group statement of changes in equity | 0 | 0
Exchange and other adjustments | 3 | (9)
Ending balance | 76 | 79
Employee benefits [member] |  |
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | 32 | 39
Group income statement | 2 | 1
Group statement of comprehensive income | 0 | (6)
Group statement of changes in equity | 6 | 1
Exchange and other adjustments | 1 | (3)
Ending balance | 41 | 32
Deferred compensation [member] |  |
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | 52 | 48
Group income statement | 2 | 4
Group statement of comprehensive income | 0 | 0
Group statement of changes in equity | 0 | 0
Exchange and other adjustments | 0 |
Ending balance | 54 | 52
Other short-term temporary differences [member] |  |
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | 16 | 9
Group income statement | (1) | (1)
Group statement of comprehensive income | (5) | 8
Group statement of changes in equity | 0 | 0
Exchange and other adjustments | 2 | 0
Ending balance | 12 | 16
Expected credit losses on trade receivables [member] |  |
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | 14 | 20
Group income statement | (3) | (5)
Group statement of comprehensive income | 0 | 0
Group statement of changes in equity | 0 | 0
Exchange and other adjustments | 0 | (1)
Ending balance | 11 | 14
Property, plant, equipment and software [member] |  |
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | (53) | (81)
Group income statement | 22 | 32
Group statement of comprehensive income | 0 | 0
Group statement of changes in equity | 0 | 0
Exchange and other adjustments | 1 | (4)
Ending balance | (30) | (53)
Application Fees [Member] |  |
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | 41 | 40
Group income statement | 1 | 1
Group statement of comprehensive income | 0 | 0
Group statement of changes in equity | 0 | 0
Exchange and other adjustments | 0 |
Ending balance | 42 | 41
Intangible Assets Excluding Software [Member] |  |
Disclosure of income tax reconciliation [line items] |  |
Beginning balance | (40) | (16)
Group income statement | (9) | (21)
Group statement of comprehensive income | 0 | 0
Group statement of changes in equity | 0 | 0
Exchange and other adjustments | 3 | (3)
Ending balance | $ (46) | $ (40)

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- Definition The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph g -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_g_ii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2023-03-23 + Details
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