XML 445 R203.htm IDEA: XBRL DOCUMENT v3.10.0.1

Capital and other commitments - Summary of Capital and Other Commitments (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Disclosure of contractual capital commitments [line items]
Capital and other commitments	$ 136	$ 104
UK Portfolio [member]
Disclosure of contractual capital commitments [line items]
Capital and other commitments	$ 33

X

- 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

X

- Definition

Disclosure of contractual capital commitments.

+ References

No definition available.

+ Details

Name:	ihg_DisclosureOfContractualCapitalCommitmentsLineItems
Namespace Prefix:	ihg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=ihg_UKPortfolioMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: