Statement Of Changes In Equity [Abstract]

Intercontinental Hotels Group PLC - Filing #1575486

Concept	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	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 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	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	As at 2019-12-31	2019-01-01 to 2019-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	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	2,870,000,000 USD	809,000,000 USD	—	57,000,000 USD	381,000,000 USD	5,000,000 USD	—	—	—	—	—	1,473,000,000 USD	8,000,000 USD	—	1,465,000,000 USD	151,000,000 USD	—	—	6,000,000 USD	—	10,000,000 USD	—	1,131,000,000 USD	4,000,000 USD	47,000,000 USD	4,000,000 USD	420,000,000 USD	2,865,000,000 USD	146,000,000 USD	8,000,000 USD	1,139,000,000 USD	10,000,000 USD	1,111,000,000 USD
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	– USD	—	– USD	—	—	—	– USD	265,000,000 USD	—	—	—	266,000,000 USD	1,000,000 USD	—	266,000,000 USD	—	—	– USD	– USD	– USD	– USD	260,000,000 USD	– USD	– USD	– USD	– USD	– USD	260,000,000 USD	—	– USD	– USD	260,000,000 USD	—	—	—	—	—	—	—	—	—	– USD	—	—	—	386,000,000 USD	—	—	—	– USD	– USD	– USD	– USD	– USD	—	—	385,000,000 USD	—	—	– USD	1,000,000 USD	—	385,000,000 USD	—	– USD	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	– 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	3,000,000 USD	83,000,000 USD	– USD	46,000,000 USD	– USD	– USD	150,000,000 USD	—	– USD	– USD	150,000,000 USD	—	—	—	—	—	—	—	—	—	18,000,000 USD	—	—	—	37,000,000 USD	—	—	—	2,000,000 USD	– USD	10,000,000 USD	39,000,000 USD	– USD	—	—	37,000,000 USD	—	—	– USD	– USD	—	6,000,000 USD	—	– USD	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	– 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	263,000,000 USD	83,000,000 USD	– USD	46,000,000 USD	– USD	– USD	410,000,000 USD	—	– USD	– USD	410,000,000 USD	—	—	—	—	—	—	—	—	—	18,000,000 USD	—	—	—	349,000,000 USD	—	—	—	2,000,000 USD	– USD	10,000,000 USD	39,000,000 USD	– USD	—	—	348,000,000 USD	—	—	– USD	1,000,000 USD	—	379,000,000 USD	—	– USD	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	722,000,000 USD	—	—	—	– USD	– USD	– USD	– USD	– USD	—	—	721,000,000 USD	—	—	– USD	1,000,000 USD	—	721,000,000 USD	—	– USD	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	—	2,000,000 USD	—	– USD	—	—	—	– USD	– USD	—	—	—	– USD	– USD	—	– USD	—	—	– USD	– USD	– USD	2,000,000 USD	– USD	– USD	– USD	– USD	5,000,000 USD	– USD	– USD	—	5,000,000 USD	– USD	– USD	—	—	—	—	—	—	—	—	—	– USD	—	—	—	– USD	—	—	—	– USD	– USD	– USD	– USD	5,000,000 USD	—	—	– USD	—	—	5,000,000 USD	– USD	—	– USD	—	– USD	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	—	– USD	—	– USD	—	—	—	– USD	– USD	—	—	—	34,000,000 USD	– USD	—	– USD	—	—	– USD	34,000,000 USD	– USD	– USD	14,000,000 USD	– USD	14,000,000 USD	– USD	– USD	– USD	– USD	—	– USD	– USD	– USD	—	—	—	—	—	—	—	—	—	– USD	—	—	—	– USD	—	—	—	– USD	19,000,000 USD	– USD	– USD	– USD	—	—	– USD	—	—	– USD	– USD	—	19,000,000 USD	—	– USD	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	—	– USD	—	– USD	—	—	—	– USD	39,000,000 USD	—	—	—	39,000,000 USD	– USD	—	39,000,000 USD	—	—	– USD	– USD	– USD	– USD	27,000,000 USD	– USD	– USD	– USD	– USD	– USD	27,000,000 USD	—	– USD	– USD	27,000,000 USD	—	—	—	—	—	—	—	—	—	– USD	—	—	—	41,000,000 USD	—	—	—	– USD	– USD	– USD	– USD	– USD	—	—	41,000,000 USD	—	—	– USD	– USD	—	41,000,000 USD	—	– USD	—	—	—	—	—	—	—	—	—	—	—