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Segmental Information - Summary of Information by Reportable Segment - Reconciliation of Capital Expenditure (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Disclosure of reportable segments [line items] |  |
Capital expenditure per management reporting | $ 253 | $ 161
Contract acquisition costs | 129 | 70
Lease incentives received |  | 6
Timing differences and other adjustments | (8) | 1
Additions per the Financial Statements | 137 | 104
Comprising additions to: |  |
Goodwill and other intangible assets | 53 | 46
Property, plant and equipment | 21 | 57
Investment in associates | 3 | 1
Other financial assets | 60 |
Additions per the Group Financial Statements | 137 | 104
Key money paid [member] |  |
Disclosure of reportable segments [line items] |  |
Contract acquisition costs | (108) | (64)
Americas [member] |  |
Disclosure of reportable segments [line items] |  |
Capital expenditure per management reporting | 128 | 71
Contract acquisition costs | (74) | (47)
Timing differences and other adjustments | 1 |
Additions per the Financial Statements | 55 | 24
Comprising additions to: |  |
Property, plant and equipment | 4 | 23
Investment in associates | 3 | 1
Other financial assets | 48 |
Additions per the Group Financial Statements | 55 | 24
EMEAA [member] |  |
Disclosure of reportable segments [line items] |  |
Capital expenditure per management reporting | 35 | 21
Contract acquisition costs | (31) | (16)
Timing differences and other adjustments | (2) |
Additions per the Financial Statements | 2 | 5
Comprising additions to: |  |
Property, plant and equipment | 2 | 5
Additions per the Group Financial Statements | 2 | 5
Greater China [member] |  |
Disclosure of reportable segments [line items] |  |
Capital expenditure per management reporting | 3 | 2
Contract acquisition costs | (3) | (1)
Timing differences and other adjustments | 0 | (1)
Additions per the Financial Statements | 0 |
Comprising additions to: |  |
Property, plant and equipment | 0 |
Additions per the Group Financial Statements | 0 |
Central [member] |  |
Disclosure of reportable segments [line items] |  |
Capital expenditure per management reporting | 87 | 67
Lease incentives received |  | 6
Timing differences and other adjustments | (7) | 2
Additions per the Financial Statements | 80 | 75
Comprising additions to: |  |
Goodwill and other intangible assets | 53 | 46
Property, plant and equipment | 15 | 29
Other financial assets | 12 |
Additions per the Group Financial Statements | $ 80 | $ 75

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