Analysis Of Income And Expense [Abstract]

3i Group PLC - Filing #1887734

Concept	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31	2021-04-01 to 2022-03-31
Analysis of income and expense [abstract]
Revenue [abstract]
Interest income	—	—	—	4,000,000 GBP	—	—	—	– GBP
Interest income on financial assets designated at fair value through profit or loss	—	—	—	29,000,000 GBP	—	—	—	30,000,000 GBP
Dividend income	—	—	—	229,000,000 GBP	—	—	—	206,000,000 GBP
Revenue	—	—	—	4,666,000,000 GBP	—	—	—	4,079,000,000 GBP
Material income and expense [abstract]
Gains (losses) on disposals of investments [abstract]
Gains (losses) on disposals of investments	—	—	—	64,000,000 GBP	—	—	—	89,000,000 GBP
Interest expense	—	—	—	54,000,000 GBP	—	—	—	53,000,000 GBP
Other operating income (expense)	—	—	—	1,000,000 GBP	—	—	—	2,000,000 GBP
Operating expense	—	—	—	137,000,000 GBP	—	—	—	127,000,000 GBP
Gains (losses) on change in fair value of derivatives [abstract]
Gains (losses) on change in fair value of derivatives	—	—	—	122,000,000 GBP	—	—	—	2,000,000 GBP
Fee and commission income (expense) [abstract]
Fee and commission income [abstract]
Portfolio and other management fee income	—	—	—	10,000,000 GBP	—	—	—	6,000,000 GBP
Miscellaneous other comprehensive income [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations	4,000,000 GBP	—	—	4,000,000 GBP	—	1,000,000 GBP	—	1,000,000 GBP
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	4,000,000 GBP	4,072,000,000 GBP	509,000,000 GBP	4,585,000,000 GBP	3,549,000,000 GBP	1,000,000 GBP	466,000,000 GBP	4,014,000,000 GBP