XML 453 R97.htm IDEA: XBRL DOCUMENT
v3.20.4

Auditor's Remuneration Paid to Ernst & Young LLP - Summary of Auditor's Remuneration Paid (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Auditor's remuneration [abstract] |  |  |  |
Audit of the Financial Statements |  | $ 3.0 | $ 3.0 | $ 3.3
Audit of subsidiaries |  | 3.3 | 3.2 | 2.9
Audit-related assurance services |  | 0.2 | 0.2 | 0.2
Other assurance services | [1] | 1.1 | 1.3 | 1.3
Other non-audit services not covered by the above |  | 0.1 | 0.1 | 0.1
Total expense related to remuneration |  | $ 7.7 | $ 7.8 | $ 7.8
[1] | Excludes fees of $0.2m which have not yet been incurred.

X
- Definition The amount of fees paid or payable to the entity's auditors. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_AuditorsRemuneration
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_AuditorsRemunerationAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of fees paid or payable to the entity's auditors for auditing services. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_AuditorsRemunerationForAuditServices
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of fees paid or payable to the entity's auditors for services that the entity does not separately disclose in the same statement or note. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_AuditorsRemunerationForOtherServices
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Auditors remuneration for audit of subsidiary financial statements. + References No definition available. + Details
Name: | ihg_AuditorsRemunerationForAuditOfSubsidiaries
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other assurance services comprise the aggregate fees for assurance and related services that are related to the performance of the audit or review of the financial statements and are not reported under total audit fees. + References No definition available. + Details
Name: | ihg_AuditorsRemunerationForAuditRelatedAssuranceServices
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Auditors remuneration for Assurance services not related to the audit. + References No definition available. + Details
Name: | ihg_AuditorsRemunerationForOtherAssuranceServices
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration