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v3.24.0.1

Trade and other receivables - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Credit risk [member] | Change In Payment Plans [Member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Impact of applying provision matrix to all owner groups including in year changes | $ 13 | $ 15

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

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- Definition Impact of applying provision matrix to all owner groups including in year changes. + References No definition available. + Details
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Namespace Prefix: | ihg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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