XML 358 R85.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Revenue - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2021
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Impairment charges | $ 53 |  |
Maximum exposure to credit risk | 438 |  | $ 501
Non-SVC contract asset [member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Impairment charges | 20 |  |
SVC contract asset [member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Impairment charges | 33 |  |
System Fund [member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Increase decrease in revenue of central segment | 20 | $ 18 |
Increase decrease in operating profit of central segment | 21 | $ 22 |
Americas [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Impairment charges | 42 |  |
Maximum exposure to credit risk | 212 |  | 275
EMEAA [Member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Impairment charges | 11 |  |
Maximum exposure to credit risk | 183 |  | 172
Performance Guarantees [member] | Financial guarantee contracts [member] |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |
Maximum exposure to credit risk | $ 72 |  | $ 85

X
- Definition The decrease in contract assets resulting from impairment. [Refer: Contract assets; Impairment loss] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_118_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DecreaseThroughImpairmentContractAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35K -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35K_a&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2023-01-01 -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 36 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_36_a&doctype=Standard&book=b -URIDate 2021-03-24 + Details
Name: | ifrs-full_MaximumExposureToCreditRisk
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Increase​​ in profit​ of central​ segment following aligned treatment of loyalty programme. + References No definition available. + Details
Name: | ihg_IncreaseInProfitOfCentralSegmentFollowingAlignedTreatmentOfLoyaltyProgramme
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase in revenue of central segment following aligned treatment of loyalty programme. + References No definition available. + Details
Name: | ihg_IncreaseInRevenueOfCentralSegmentFollowingAlignedTreatmentOfLoyaltyProgramme
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=ihg_NonSVCContractAssetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=ihg_SVCContractAssetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_FinancialGuaranteeContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |