Statement Of Changes In Equity [Abstract]

TP ICAP Group PLC - Filing #1868412

Concept	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	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	As at 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	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	As at 2022-12-31	As at 2022-12-31	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	2021-01-01 to 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	2021-01-01 to 2021-12-31	As at 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	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	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	As at 2020-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	2, 161 GBP	—	—	—	—	– GBP	—	—	—	—	5,000,000 GBP	—	—	18,000,000 GBP	– GBP	2, 800 GBP	22,000,000 GBP	197,000,000 GBP	– GBP	2, 143 GBP	—	—	94 6 GBP	109,000,000 GBP	—	2 6 GBP	197,000,000 GBP	2 ,7 6 9 GBP	—	—	—	—	—	38,000,000 GBP	—	—	1,9 7 8 GBP	5,000,000 GBP	—	946,000,000 GBP	– GBP	– GBP	1 ,9 6 1 GBP	– GBP	—	17,000,000 GBP	—	—	41,000,000 GBP	1,67 9 GBP	141,000,000 GBP	4,000,000 GBP	– GBP	1, 182 GBP	1, 38 3 GBP	27,000,000 GBP	1, 3 8 4 GBP	17,000,000 GBP	19,000,000 GBP	1,6 9 8 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	– GBP	– GBP	– GBP	– GBP	—	106,000,000 GBP	– GBP	103,000,000 GBP	3,000,000 GBP	—	– GBP	– GBP	—	—	—	—	—	—	—	103,000,000 GBP	– GBP	—	—	3,000,000 GBP	—	—	—	– GBP	– GBP	– GBP	– GBP	– GBP	—	– GBP	5,000,000 GBP	—	—	– GBP	—	—	—	—	—	– GBP	—	8,000,000 GBP	5,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	– GBP	147,000,000 GBP	– GBP	– GBP	—	148,000,000 GBP	– GBP	– GBP	1,000,000 GBP	—	– GBP	– GBP	—	—	—	—	—	—	—	147,000,000 GBP	– GBP	—	—	– GBP	—	—	—	– GBP	– GBP	– GBP	3,000,000 GBP	– GBP	—	1,000,000 GBP	7,000,000 GBP	—	—	– GBP	—	—	—	—	—	– GBP	—	7,000,000 GBP	3,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	– GBP	147,000,000 GBP	– GBP	– GBP	—	254,000,000 GBP	– GBP	103,000,000 GBP	4,000,000 GBP	—	– GBP	– GBP	—	—	—	—	—	—	—	250,000,000 GBP	– GBP	—	—	3,000,000 GBP	—	—	—	– GBP	– GBP	– GBP	3,000,000 GBP	– GBP	—	1,000,000 GBP	12,000,000 GBP	—	—	– GBP	—	—	—	—	—	– GBP	—	15,000,000 GBP	8,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	– GBP	– GBP	– GBP	– GBP	—	81,000,000 GBP	– GBP	78,000,000 GBP	3,000,000 GBP	—	– GBP	– GBP	—	—	—	—	—	—	—	78,000,000 GBP	– GBP	—	—	2,000,000 GBP	—	—	—	– GBP	– GBP	– GBP	– GBP	– GBP	—	– GBP	47,000,000 GBP	—	—	– GBP	—	—	—	—	—	– GBP	—	4 9 GBP	47,000,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—