XML 445 R172.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Net Debt - Additional Information (Detail) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Disclosure of comparative information prepared under previous GAAP [line items] |  |  |
Net debt | $ 1,881 | $ 2,529 | $ 2,665
Intercontinental San Juan [member] |  |  |
Disclosure of comparative information prepared under previous GAAP [line items] |  |  |
Lease termination | 90 |  |
Previous GAAP [member] |  |  |
Disclosure of comparative information prepared under previous GAAP [line items] |  |  |
Net debt | $ 1,801 | $ 2,375 |

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

X
- Definition The amount of net debt of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NetDebt
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Increase decrease through financing cash flows liabilities arising from termination of lease. + References No definition available. + Details
Name: | ihg_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromTerminationOfLease
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ihg_LeaseEntityAxis=ihg_IntercontinentalSanJuanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_FinancialEffectOfTransitionFromPreviousGAAPToIFRSsAxis=ifrs-full_PreviousGAAPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |