Statement Of Changes In Equity [Abstract]

Informa PLC - Filing #2025090

Concept	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	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	2022-01-01 to 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Dividends recognised as distributions to owners of parent	– GBP	176,600,000 GBP	– GBP	176,600,000 GBP	– GBP	176,600,000 GBP	– GBP	– GBP	– GBP	43,300,000 GBP	– GBP	43,300,000 GBP	– GBP	43,300,000 GBP	– GBP	– GBP
Dividends recognised as distributions to non-controlling interests	– GBP	16,000,000 GBP	16,000,000 GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	9,500,000 GBP	– GBP	– GBP	9,500,000 GBP	– GBP
Increase (decrease) through acquisition of subsidiary, equity	– GBP	92,300,000 GBP	92,300,000 GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	– GBP	25,900,000 GBP	– GBP	– GBP	25,900,000 GBP	– GBP
Increase (decrease) through exercise of options, equity	– GBP	– GBP	– GBP	11,100,000 GBP	– GBP	– GBP	11,100,000 GBP	– GBP	– GBP	– GBP	11,100,000 GBP	– GBP	– GBP	11,100,000 GBP	– GBP	– GBP
Increase (decrease) through transactions with owners, equity	– GBP	4,700,000 GBP	3,600,000 GBP	8,300,000 GBP	– GBP	8,300,000 GBP	– GBP	– GBP	—	—	—	—	—	—	—	—
Purchase of treasury shares	– GBP	4,800,000 GBP	– GBP	– GBP	– GBP	4,800,000 GBP	4,800,000 GBP	– GBP	– GBP	3,300,000 GBP	3,300,000 GBP	3,300,000 GBP	– GBP	– GBP	– GBP	– GBP
Share issue related cost	100,000 GBP	173,800,000 GBP	– GBP	– GBP	– GBP	173,800,000 GBP	173,700,000 GBP	– GBP	—	—	—	—	—	—	—	—