Statement Of Changes In Equity [Abstract]

Informa PLC - Filing #5879407

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	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	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	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
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	—	—	2,460,500,000 GBP	1,878,600,000 GBP	—	1,300,000 GBP	834,300,000 GBP	82,100,000 GBP	—	—	6,485,200,000 GBP	—	2,226,900,000 GBP	—	—	7,319,500,000 GBP	—	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
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	– GBP	297,700,000 GBP	– GBP	– GBP	—	—	– GBP	—	—	—	297,700,000 GBP	68,700,000 GBP	—	366,400,000 GBP	—	737,200,000 GBP	370,800,000 GBP	—	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	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	—	—	—	—	—	—	—	—	7,500,000 GBP	—	—	—	—	265,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	12,000,000 GBP	302,200,000 GBP	– GBP	– GBP	—	—	6,500,000 GBP	—	—	—	296,700,000 GBP	71,700,000 GBP	—	373,900,000 GBP	—	—	—	—	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	—	—	—	—	—	—	—	—	—	—	—	—	—
Issue of equity	37,500,000 GBP	37,500,000 GBP	– GBP	– GBP	—	—	– GBP	—	—	—	– GBP	– GBP	—	37,500,000 GBP	—	—	—	—	173,800,000 GBP	—	173,800,000 GBP	173,700,000 GBP	—	– GBP	—	– GBP	– GBP	—	– GBP	—	100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	20,600,000 GBP	20,600,000 GBP	– GBP	– GBP	—	—	– GBP	—	—	—	– GBP	– GBP	—	20,600,000 GBP	—	—	—	—	19,600,000 GBP	—	19,600,000 GBP	19,600,000 GBP	—	– GBP	—	– GBP	– GBP	—	– GBP	—	– GBP	—	—	—	—	—	—	—	—	—	—	—	—	—