Analysis Of Income And Expense [Abstract]

ageas SA/NV - Filing #5970941

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	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	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	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	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
Analysis of income and expense [abstract]
Material income and expense [abstract]
Investment income	—	—	—	—	—	—	—	—	4,734,000,000 EUR	—	—	4,659,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Expenses by nature [abstract]
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]
Impairment loss (reversal of impairment loss) recognised in profit or loss	—	—	—	—	—	—	—	—	31,000,000 EUR	—	—	35,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Other expenses, by nature	—	—	—	—	—	—	—	—	1,623,000,000 EUR	—	—	1,406,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Miscellaneous other comprehensive income [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations	—	—	—	—	—	—	—	—	286,000,000 EUR	—	—	262,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Other comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	—	—	29,000,000 EUR	—	—	142,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract]
Share of profit (loss) of associates and joint ventures accounted for using equity method	—	—	—	—	—	—	—	—	564,000,000 EUR	—	—	439,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method, before tax [abstract]
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, before tax	—	—	—	—	—	—	—	—	146,000,000 EUR	—	—	32,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, before tax	—	—	—	—	—	—	—	—	678,000,000 EUR	—	—	360,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Income tax relating to components of other comprehensive income [abstract]
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss	—	—	—	—	—	—	—	—	31,000,000 EUR	—	—	2,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss	—	—	—	—	—	—	—	—	173,000,000 EUR	—	—	61,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	1,118,000,000 EUR	1,988,000,000 EUR	2,406,000,000 EUR	990,000,000 EUR	- EUR	- EUR	289,000,000 EUR	162,000,000 EUR	1,152,000,000 EUR	- EUR	1,000,000 EUR	1,391,000,000 EUR	953,000,000 EUR	38,000,000 EUR	2,577,000,000 EUR	1,025,000,000 EUR	2,208,000,000 EUR	366,000,000 EUR	- EUR	259,000,000 EUR	- EUR	- EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	—	—	990,000,000 EUR	—	—	1,025,000,000 EUR	—	—	—	—	—	—	—	—	—	—
Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract]
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	—	—	162,000,000 EUR	—	—	366,000,000 EUR	—	—	—	—	—	—	—	—	—	—