Analysis Of Income And Expense [Abstract]

ageas SA/NV - Filing #3105704

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
Analysis of income and expense [abstract]
Material income and expense [abstract]
Investment income	4,659,000 EUR	—	—	—	—	—	—	—	—	—	—	301,000,000 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	35,000,000 EUR	—	—	—	—	—	—	—	—	—	—	66,000,000 EUR	—	—	—	—
Other expenses, by nature	1,406,000 EUR	—	—	—	—	—	—	—	—	—	—	1,237,000 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	262,000,000 EUR	—	—	—	—	—	—	—	—	—	—	14,000,000 EUR	—	—	—	—
Other comprehensive income, attributable to non-controlling interests	142,000,000 EUR	—	—	—	—	—	—	—	—	—	—	134,000,000 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	439,000,000 EUR	—	—	—	—	—	—	—	—	—	—	508,000,000 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	32,000,000 EUR	—	—	—	—	—	—	—	—	—	—	156,000,000 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	360,000,000 EUR	—	—	—	—	—	—	—	—	—	—	261,000,000 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	2,000,000 EUR	—	—	—	—	—	—	—	—	—	—	18,000,000 EUR	—	—	—	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss	61,000,000 EUR	—	—	—	—	—	—	—	—	—	—	282,000,000 EUR	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	1,391,000 EUR	953,000,000 EUR	38,000,000 EUR	2,577,000 EUR	366,000,000 EUR	1,025,000 EUR	2,208,000 EUR	259,000,000 EUR	1,097,000 EUR	150,000,000 EUR	21,000,000 EUR	74,000,000 EUR	53,000,000 EUR	9,000,000 EUR	7,416,000 EUR	8,633,000 EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	1,025,000 EUR	—	—	—	—	—	—	—	—	—	—	21,000,000 EUR	—	—	—	—
Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract]
Comprehensive income, attributable to non-controlling interests	366,000,000 EUR	—	—	—	—	—	—	—	—	—	—	53,000,000 EUR	—	—	—	—