XML 424 R150.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Insurance - Additional Information (Detail) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Statements [Line Items] |  |  |
Insurance contracts that are liabilities | $ 39 | $ 37 | $ 32
International general liability principally for managed hotels [member] |  |  |
Statements [Line Items] |  |  |
Insurance contracts that are liabilities | 15 | 19 |
Managed hotels [member] |  |  |
Statements [Line Items] |  |  |
Maximum liabilities last five policy years | 17 | 14 |
Owned and leased properties [member] |  |  |
Statements [Line Items] |  |  |
Maximum liabilities last five policy years | $ 71 | $ 49 |

X
- Definition The amount of insurance contracts that are liabilities. [Refer: Liabilities; Insurance contracts [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 17 -IssueDate 2024-01-01 -Paragraph 99 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2024-en-r&anchor=para_99_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_InsuranceContractsThatAreLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum liabilities last five policy years managed properties. + References No definition available. + Details
Name: | ihg_MaximumLiabilitiesLastFivePolicyYearsManagedProperties
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Statements [Line Items] + References No definition available. + Details
Name: | ihg_StatementsLineItems
Namespace Prefix: | ihg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ihg_InsuranceReserveAxis=ihg_InternationalGeneralLiabilityPrincipallyForManagedHotelsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ihg_InsuranceReserveAxis=ihg_ManagedHotelsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ihg_InsuranceReserveAxis=ihg_OwnedAndLeasedPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |