Statement Of Changes In Equity [Abstract]

Intercontinental Hotels Group PLC - Filing #1997551

Concept	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 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	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 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	As at 2022-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	396,000,000 USD	—	—	4,000,000 USD	—	141,000,000 USD	35,000,000 USD	376,000,000 USD	23,000,000 USD	—	—	—	2,000,000 USD	—	—	1,946,000,000 USD	—	—	—	14,000,000 USD	2,863,000,000 USD	1,950,000,000 USD	—	—	—	—	26,000,000 USD	498,000,000 USD	37,000,000 USD	—	– USD	1,608,000,000 USD	—	7,000,000 USD	10,000,000 USD	607,000,000 USD	137,000,000 USD	1,615,000,000 USD	—	—	—	—	—	2,856,000,000 USD	2,873,000,000 USD	—	10,000,000 USD	—	25,000,000 USD	22,000,000 USD	316,000,000 USD	—	—	1,481,000,000 USD	7,000,000 USD	154,000,000 USD	—	—	904,000,000 USD	—	1,474,000,000 USD	5,000,000 USD	—	—	—	—	24,000,000 USD	2,875,000,000 USD	1,849,000,000 USD	568,000,000 USD	8,000,000 USD	1,857,000,000 USD	156,000,000 USD	1,000,000 USD	298,000,000 USD	11,000,000 USD	10,000,000 USD
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	– USD	750,000,000 USD	—	– USD	—	—	—	—	– USD	– USD	– USD	—	– USD	750,000,000 USD	—	750,000,000 USD	– USD	– USD	—	—	—	– USD	– USD	– USD	– USD	—	—	—	– USD	—	—	376,000,000 USD	—	—	—	—	—	375,000,000 USD	375,000,000 USD	1,000,000 USD	– USD	– USD	—	—	– USD	—	– USD	—	—	—	– USD	265,000,000 USD	—	—	—	266,000,000 USD	1,000,000 USD	—	266,000,000 USD	—	—	– USD	– USD	– USD	– USD	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	– USD	2,000,000 USD	—	– USD	—	—	—	—	122,000,000 USD	– USD	3,000,000 USD	—	2,000,000 USD	129,000,000 USD	—	129,000,000 USD	– USD	– USD	—	—	—	– USD	– USD	182,000,000 USD	– USD	—	—	—	1,000,000 USD	—	—	192,000,000 USD	—	—	—	—	—	193,000,000 USD	15,000,000 USD	1,000,000 USD	5,000,000 USD	– USD	—	—	– USD	—	29,000,000 USD	—	—	—	– USD	69,000,000 USD	—	—	—	8,000,000 USD	– USD	—	69,000,000 USD	—	—	14,000,000 USD	– USD	18,000,000 USD	– USD	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	– USD	748,000,000 USD	—	– USD	—	—	—	—	122,000,000 USD	– USD	3,000,000 USD	—	2,000,000 USD	621,000,000 USD	—	621,000,000 USD	– USD	– USD	—	—	—	– USD	– USD	182,000,000 USD	– USD	—	—	—	1,000,000 USD	—	—	568,000,000 USD	—	—	—	—	—	568,000,000 USD	390,000,000 USD	– USD	5,000,000 USD	– USD	—	—	– USD	—	29,000,000 USD	—	—	—	– USD	334,000,000 USD	—	—	—	274,000,000 USD	1,000,000 USD	—	335,000,000 USD	—	—	14,000,000 USD	– USD	18,000,000 USD	– USD	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	3,000,000 USD	245,000,000 USD	—	– USD	—	—	—	—	– USD	– USD	– USD	—	– USD	248,000,000 USD	—	245,000,000 USD	– USD	– USD	—	—	—	– USD	– USD	– USD	– USD	—	—	—	– USD	—	—	233,000,000 USD	—	—	—	—	—	233,000,000 USD	233,000,000 USD	– USD	– USD	– USD	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	—	– USD	– USD	—	7,000,000 USD	—	—	—	—	– USD	1,000,000 USD	– USD	—	– USD	– USD	—	– USD	7,000,000 USD	1,000,000 USD	—	—	—	16,000,000 USD	17,000,000 USD	– USD	– USD	—	—	—	– USD	—	—	– USD	—	—	—	—	—	– USD	– USD	– USD	– USD	1,000,000 USD	—	—	2,000,000 USD	—	– USD	—	—	—	– USD	– USD	—	—	—	– USD	– USD	—	– USD	—	—	– USD	– USD	– USD	2,000,000 USD	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	—	– USD	21,000,000 USD	—	– USD	—	—	—	—	– USD	21,000,000 USD	– USD	—	– USD	– USD	—	– USD	– USD	– USD	—	—	—	– USD	– USD	– USD	26,000,000 USD	—	—	—	– USD	—	—	– USD	—	—	—	—	—	– USD	26,000,000 USD	– USD	– USD	– USD	—	—	– USD	—	– USD	—	—	—	– USD	– USD	—	—	—	34,000,000 USD	– USD	—	– USD	—	—	– USD	34,000,000 USD	– USD	– USD	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	—	– USD	51,000,000 USD	—	– USD	—	—	—	—	– USD	– USD	– USD	—	– USD	51,000,000 USD	—	51,000,000 USD	– USD	– USD	—	—	—	– USD	– USD	– USD	– USD	—	—	—	– USD	—	—	44,000,000 USD	—	—	—	—	—	44,000,000 USD	44,000,000 USD	– USD	– USD	– USD	—	—	– USD	—	– USD	—	—	—	– USD	39,000,000 USD	—	—	—	39,000,000 USD	– USD	—	39,000,000 USD	—	—	– USD	– USD	– USD	– USD	—	—	—	—	—	—	—	—	—	—	—