XML 349 R77.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Segmental Information - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Reportable segments [member] |  |
Disclosure of reportable segments [line items] |  |
Income from government grants |  | $ 6
Additional variable rent expenditure |  | 10
Business insurance claims |  | 6
EMEAA [Member] |  |
Disclosure of reportable segments [line items] |  |
Income from government grants |  | $ 16
Geographic concentration risk2 [member] | Revenue [member] |  |
Disclosure of reportable segments [line items] |  |
Concentration risk benchmark | revenue relating to an individual country is separately disclosed when it represents 10% or more of total revenue. |
Concentration risk percentage | 10.00% |
Geographic concentration risk2 [member] | Non-current Assets [member] |  |
Disclosure of reportable segments [line items] |  |
Concentration risk benchmark | non-current assets relating to an individual country are separately disclosed when they represent 10% or more of total non-current assets |
Concentration risk percentage | 10.00% |

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfOperatingSegmentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of income recognised in relation to government grants. [Refer: Government grants] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 20 -IssueDate 2023-01-01 -Paragraph 39 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=20&code=ifrs-tx-2023-en-r&anchor=para_39_b&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_RevenueFromGovernmentGrants
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Additional variable rent expenditure. + References No definition available. + Details
Name: | ihg_AdditionalVariableRentExpenditure
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Business insurance claims. + References No definition available. + Details
Name: | ihg_BusinessInsuranceClaims
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Concentration risk benchmark description2. + References No definition available. + Details
Name: | ihg_ConcentrationRiskBenchmarkDescription2
Namespace Prefix: | ihg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Concentration risks percentage + References No definition available. + Details
Name: | ihg_ConcentrationRisksPercentage
Namespace Prefix: | ihg_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_SegmentsAxis=ifrs-full_ReportableSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_GeographicalAreasAxis=ihg_EMEAAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ihg_ConcentrationRiskByType1Axis=ihg_GeographicConcentrationRisk2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ihg_ConcentrationRiskByBenchmark1Axis=ihg_RevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ihg_ConcentrationRiskByBenchmark1Axis=ihg_NonCurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |