Statement Of Changes In Equity [Abstract]

Informa PLC - Filing #2025090

Concept	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	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	2023-01-01 to 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	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	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	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	7,184,600,000 GBP	—	—	2,853,500,000 GBP	—	2,090,600,000 GBP	—	—	436,100,000 GBP	—	1,878,600,000 GBP	—	1,400,000 GBP	75,600,000 GBP	6,748,500,000 GBP	—	—	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	5,757,800,000 GBP	1,878,600,000 GBP	208,000,000 GBP	1,500,000 GBP	288,100,000 GBP
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	462,700,000 GBP	—	419,000,000 GBP	– GBP	—	43,700,000 GBP	—	419,000,000 GBP	– GBP	—	– GBP	—	– GBP	—	—	—	678,200,000 GBP	215,500,000 GBP	—	– 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	—	—	—	—	—	—	—	—
Other comprehensive income	265,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	389,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	197,400,000 GBP	—	155,400,000 GBP	700,000 GBP	—	42,000,000 GBP	—	407,200,000 GBP	– GBP	—	251,100,000 GBP	—	– GBP	—	—	—	—	—	—	– 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	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	19,600,000 GBP	—	19,600,000 GBP	19,600,000 GBP	—	– GBP	—	– GBP	– GBP	—	– GBP	—	– GBP	—	—	—	—	—	—	– GBP	17,500,000 GBP	17,500,000 GBP	– GBP	– GBP	—	—	—	—	—	—	—	—	—	17,500,000 GBP	– GBP	– GBP	—	—	—	—	—	—	—	—