Statement Of Changes In Equity [Abstract]

Informa PLC - Filing #1880902

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	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	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	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	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	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 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	7,466,300,000 GBP	—	—	—	—	—	—	—	1,928,200,000 GBP	314,200,000 GBP	1,878,600,000 GBP	3,168,400,000 GBP	1,400,000 GBP	175,500,000 GBP	7,152,100,000 GBP	—	—	—	—	2,057,700,000 GBP	2,028,000,000 GBP	—	—	6,045,900,000 GBP	—	208,000,000 GBP	—	—	—	5,757,800,000 GBP	—	288,100,000 GBP	1,500,000 GBP	1,878,600,000 GBP	—	—	1,807,300,000 GBP	177,000,000 GBP	5,451,000,000 GBP	1,500,000 GBP	210,400,000 GBP	1,973,800,000 GBP	1,878,800,000 GBP	5,628,000,000 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	– GBP	– GBP	1,635,300,000 GBP	1,631,500,000 GBP	3,800,000 GBP	399,300,000 GBP	1,236,000,000 GBP	—	—	—	—	—	—	—	1,631,500,000 GBP	– GBP	– GBP	10,300,000 GBP	—	—	– GBP	77,900,000 GBP	—	– GBP	—	– GBP	177,900,000 GBP	266,100,000 GBP	—	– GBP	—	—	—	88,200,000 GBP	77,900,000 GBP	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	389,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	116,100,000 GBP	—	—	—	—	—	—	—	—	—
Comprehensive income	—	– GBP	28,000,000 GBP	2,025,100,000 GBP	1,659,900,000 GBP	9,700,000 GBP	—	—	—	—	—	—	—	—	—	2,015,400,000 GBP	– GBP	383,500,000 GBP	13,000,000 GBP	—	—	52,100,000 GBP	191,300,000 GBP	—	– GBP	—	2,400,000 GBP	—	—	—	– GBP	—	—	—	204,300,000 GBP	136,800,000 GBP	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	—	– GBP	17,500,000 GBP	17,500,000 GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	—	17,500,000 GBP	– GBP	– GBP	– GBP	—	—	15,000,000 GBP	15,000,000 GBP	—	– GBP	—	– GBP	—	—	—	– GBP	—	—	—	15,000,000 GBP	– GBP	—	—	—	—	—	—	—	—