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Staff costs and Directors' remuneration - Summary of Average Number of Employees (Detail) - Employee | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of average number of employees [line items] |  |  |
Average number of employees, including part-time employees | 27,598 | 25,880 | 22,328
Costs borne by IHG [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees, including part-time employees | 7,292 | 7,047 | 6,013
Employees whose costs are borne by the System Fund or are reimbursed [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees, including part-time employees | 20,306 | 18,833 | 16,315
Americas [member] | Costs borne by IHG [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees, including part-time employees | 1,578 | 1,548 | 1,481
EMEAA [member] | Costs borne by IHG [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees, including part-time employees | 3,642 | 3,638 | 2,808
Greater China [member] | Costs borne by IHG [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees, including part-time employees | 352 | 333 | 299
Central [member] | Costs borne by IHG [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees, including part-time employees | 1,720 | 1,528 | 1,425

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- Definition The average number of personnel employed by the entity during a period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
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