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Earnings/(loss) per ordinary share - Additional Information (Detail) $ in Millions | Aug. 09, 2022 USD ($)
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Earnings per share [abstract] |
Share buyback | $ 500

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- References No definition available. + Details
Name: | ifrs-full_EarningsPerShareAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Share buyback. + References No definition available. + Details
Name: | ihg_ShareBuyback
Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant