Statement Of Comprehensive Income [Abstract]

Informa PLC - Filing #1880901

Concept	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	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	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	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
Statement of 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 [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]
Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans	– GBP	– GBP	26,900,000 GBP	26,900,000 GBP	– GBP	—	—	26,900,000 GBP	– GBP	– GBP	– GBP	– GBP	69,200,000 GBP	– GBP	– GBP	—	—	– GBP	69,200,000 GBP	69,200,000 GBP
Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract]
Exchange differences on translation [abstract]
Gains (losses) on exchange differences on translation of foreign operations, before tax	– GBP	– GBP	413,700,000 GBP	– GBP	5,900,000 GBP	—	—	407,800,000 GBP	– GBP	407,800,000 GBP	2,700,000 GBP	– GBP	1,500,000 GBP	– GBP	1,500,000 GBP	—	—	– GBP	1,200,000 GBP	– GBP
Cash flow hedges [abstract]
Gains (losses) on cash flow hedges, before tax	—	—	33,300,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	37,000,000 GBP	—
Reclassification adjustments on cash flow hedges, before tax	—	—	63,100,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	91,500,000 GBP	—
Hedges of net investment in foreign operations [abstract]
Gains (losses) on hedges of net investments in foreign operations, before tax	—	—	173,400,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	42,400,000 GBP	—
Cost of hedging [abstract]
Change in value of foreign currency basis spreads [abstract]
Gains (losses) on change in value of foreign currency basis spreads, before tax	—	—	1,800,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2,400,000 GBP	—
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss	—	—	1,500,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	10,300,000 GBP	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract]
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss	—	—	8,200,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,900,000 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
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	2,015,400,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	191,300,000 GBP	—
Comprehensive income, attributable to non-controlling interests	—	—	9,700,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	13,000,000 GBP	—