Analysis Of Income And Expense [Abstract]

KBC Groupe NV - Filing #3173649

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	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	2022-01-01 to 2022-12-31
Analysis of income and expense [abstract]
Revenue [abstract]
Interest income	—	20 170 EUR	—	—	—	—	—	—	—	—	—	—	—	11 225 EUR	—	—	—	—
Dividend income	—	59,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	59,000,000 EUR	—	—	—	—
Revenue	—	11 224 EUR	—	—	—	—	—	—	—	—	—	—	—	10 035 EUR	—	—	—	—
Material income and expense [abstract]
Interest expense	—	14 697 EUR	—	—	—	—	—	—	—	—	—	—	—	6 063 EUR	—	—	—	—
Interest income (expense)	—	5 473 EUR	—	—	—	—	—	—	—	—	—	—	—	5 162 EUR	—	—	—	—
Operating expense	—	4 616 EUR	—	—	—	—	—	—	—	—	—	—	—	4 327 EUR	—	—	—	—
Fee and commission income (expense) [abstract]
Fee and commission income [abstract]
Fee and commission income	—	2 991 EUR	—	—	—	—	—	—	—	—	—	—	—	2 800 EUR	—	—	—	—
Fee and commission expense [abstract]
Fee and commission expense	—	642,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	581,000,000 EUR	—	—	—	—
Fee and commission income (expense)	—	2 349 EUR	—	—	—	—	—	—	—	—	—	—	—	2 218 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	—	215,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	282,000,000 EUR	—	—	—	—
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	—	115,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	15,000,000 EUR	—	—	—	—
Other comprehensive income, net of tax, hedges of net investments in foreign operations	—	52,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	4,000,000 EUR	—	—	—	—
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	—	115,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	15,000,000 EUR	—	—	—	—
Income tax relating to exchange differences on translation of foreign operations and hedges of net investments in foreign operations included in other comprehensive income [abstract]
Income tax relating to exchange differences on translation of foreign operations included in other comprehensive income	—	0 EUR	—	—	—	—	—	—	—	—	—	—	—	0 EUR	—	—	—	—
Income tax relating to hedges of net investments in foreign operations included in other comprehensive income	—	23,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	12,000,000 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	—	4,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	10,000,000 EUR	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of 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, net of tax	—	0 EUR	—	—	—	—	—	—	—	—	—	—	—	0 EUR	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax	—	0 EUR	—	—	—	—	—	—	—	—	—	—	—	0 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	—	0 EUR	—	—	—	—	—	—	—	—	—	—	—	0 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	—	0 EUR	—	—	—	—	—	—	—	—	—	—	—	0 EUR	—	—	—	—
Income tax relating to share of other comprehensive income of associates and joint ventures accounted for using equity method [abstract]
Income tax relating to share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss	—	0 EUR	—	—	—	—	—	—	—	—	—	—	—	0 EUR	—	—	—	—
Income tax relating to share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss	—	0 EUR	—	—	—	—	—	—	—	—	—	—	—	0 EUR	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	0 EUR	3 896 EUR	0 EUR	1,000,000 EUR	3 400 EUR	0 EUR	0 EUR	3 897 EUR	497,000,000 EUR	0 EUR	0 EUR	215,000,000 EUR	3 035 EUR	3 035 EUR	0 EUR	2 819 EUR	0 EUR	0 EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	3 897 EUR	—	—	—	—	—	—	—	—	—	—	—	3 035 EUR	—	—	—	—
Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract]
Comprehensive income, attributable to non-controlling interests	—	1,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	0 EUR	—	—	—	—