XML 351 R77.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Accounting policies - Additional Information (Detail) € in Millions, $ in Millions | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2024 EUR (€) | Sep. 30, 2024 EUR (€) | Dec. 31, 2023 USD ($) | Nov. 30, 2023 EUR (€) | Dec. 31, 2022 USD ($)
Accounting policies [line items] |  |  |  |  |  |
Depreciation method, property, plant and equipment | All depreciation is charged on a straight-line basis. |  |  |  |  |
Payment terms of trade receivables | 30 days |  |  |  |  |
Outstanding letters of credit | $ 84 |  |  | $ 68 |  |
2028 [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Revolving credit facility exercised | $ 1,350 |  |  |  |  |
EUR500m 1.625% bonds 2024 [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Notional amount | € |  | € 500 |  |  |  |
Amount of debt under consideration | € |  | 300 |  |  |  |
EUR600m 4.375% bonds 2029 [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Notional amount | € |  | € 600 | € 750 |  | € 600 |
Intercontinental Hotels Boston [Member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Percentage of margin before the asset gets impaired fully | 25.00% |  |  |  |  |
Loyalty programme liability [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, recognised in profit or loss, before tax, liabilities | $ 86 |  |  |  |  |
Loyalty programme liability [member] | System Fund [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Deferred revenue | $ 1,653 |  |  | $ 1,529 |  | $ 1,411
Buildings [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Estimated useful lives | 50 years |  |  |  |  |
Software [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Amortisation method, intangible assets other than goodwill | straight-line basis |  |  |  |  |
Bottom of range [member] | Fixtures, fittings and equipment [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Estimated useful lives | 3 years |  |  |  |  |
Bottom of range [member] | Software [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Estimated useful lives | 3 years |  |  |  |  |
Bottom of range [member] | Software [member] | Guest Reservation System [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Estimated useful lives | 7 years |  |  |  |  |
Top of range [member] | Fixtures, fittings and equipment [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Estimated useful lives | 25 years |  |  |  |  |
Top of range [member] | Software [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Estimated useful lives | 5 years |  |  |  |  |
Top of range [member] | Software [member] | Guest Reservation System [member] |  |  |  |  |  |
Accounting policies [line items] |  |  |  |  |  |
Estimated useful lives | 10 years |  |  |  |  |

X
- Definition The amortisation method used for intangible assets other than goodwill with finite useful lives. [Refer: Intangible assets other than goodwill; Depreciation and amortisation expense] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_AmortisationMethodIntangibleAssetsOtherThanGoodwill
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The depreciation method used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DepreciationMethodPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The description of the significant payment terms in contracts with customers. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2024-01-01 -Paragraph 119 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_119_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DescriptionOfSignificantPaymentTermsInContractsWithCustomers
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of increase (decrease) in the fair value measurement of liabilities, recognised in profit or loss before tax, due to a reasonably possible increase in an unobservable input. [Refer: Tax income (expense)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph h -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_h_ii&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseInFairValueMeasurementDueToReasonablyPossibleIncreaseInUnobservableInputRecognisedInProfitOrLossBeforeTaxLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The useful life, measured as period of time, used for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The useful life, measured as period of time, used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accounting policies. + References No definition available. + Details
Name: | ihg_AccountingPoliciesLineItems
Namespace Prefix: | ihg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of debt under consideration. + References No definition available. + Details
Name: | ihg_AmountOfDebtUnderConsideration
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred revenues. + References No definition available. + Details
Name: | ihg_DeferredRevenues
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | ihg_LettersOfCreditOutstandingAmount2
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of margin before the asset gets impaired fully. + References No definition available. + Details
Name: | ihg_PercentageOfMarginBeforeTheAssetGetsImpairedFully
Namespace Prefix: | ihg_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Revolving credit facility exercised. + References No definition available. + Details
Name: | ihg_RevolvingCreditFacilityExercised
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ihg_YearOfMaturityAxis=ihg_TwoThousandAndTwentyEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ihg_FiveHundredMillionEuroOnePointSixTwoFivePercentageBondsDueInTwoThousandTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=ihg_SixHundredMillionPoundsFourPointThreeSevenFivePercentBondsDueTwoThousandAndTwentyNineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=ihg_IntercontinentalHotelsBostonMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=ihg_LoyaltyProgrammeLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ihg_SystemFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_BuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis=ifrs-full_ComputerSoftwareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_FixturesAndFittingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |