XML 446 R204.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Capital and other commitments - Additional Information (Detail) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Disclosure of capital and other commitments [line items] |  |
Unutilised facilities provided by banks | $ 5,000,000 | $ 5,000,000
Capital and other commitments | 136,000,000 | 104,000,000
Associates [member] |  |
Disclosure of capital and other commitments [line items] |  |
Capital and other commitments | $ 0 | $ 33,000,000

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- Definition The amount of capital commitments for which the entity has entered into a contract. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard -URIDate 2018-03-16 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Disclosure of Capital and other Commitments [line items] + References No definition available. + Details
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Namespace Prefix: | ihg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Undrawn loan facility to a hotel owners. + References No definition available. + Details
Name: | ihg_UndrawnLoanFacilityToAHotelOwners
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |