Statement Of Changes In Equity [Abstract]

Intercontinental Hotels Group PLC - Filing #5584566

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Decrease (increase) through tax on share-based payment transactions, equity	– USD	15,000,000 USD	– USD	– USD	– USD	– USD	15,000,000 USD	– USD	– USD	15,000,000 USD	– USD	11,000,000 USD	11,000,000 USD	– USD	– USD	– USD	11,000,000 USD	– USD	– USD	– USD	– USD	– USD	– USD	– USD	1,000,000 USD	1,000,000 USD	– USD	– USD	– USD	– USD	– USD	– USD	1,000,000 USD
Purchase of treasury shares	– USD	812,000,000 USD	2,000,000 USD	2,000,000 USD	– USD	– USD	812,000,000 USD	– USD	– USD	812,000,000 USD	– USD	765,000,000 USD	765,000,000 USD	– USD	3,000,000 USD	– USD	765,000,000 USD	– USD	– USD	3,000,000 USD	– USD	– USD	1,000,000 USD	– USD	513,000,000 USD	513,000,000 USD	– USD	– USD	– USD	1,000,000 USD	– USD	– USD	513,000,000 USD