Disclosure Of Income Tax [Text Block]

KBC Groupe NV - Filing #3174055

Concept	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31
Disclosure of income tax [text block]	—	—	—	—
Major components of tax expense (income) [abstract]
Tax expense (income)	—	804,000,000 EUR	—	407,000,000 EUR
Income tax relating to components of 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 cash flow hedges included in other comprehensive income	—	62,000,000 EUR	—	6,000,000 EUR
Income tax relating to changes in revaluation surplus of property, plant and equipment, right-of-use assets and intangible assets included in other comprehensive income	—	1,000,000 EUR	—	1,000,000 EUR
Income tax relating to remeasurements of defined benefit plans included in other comprehensive income	—	96,000,000 EUR	—	11,000,000 EUR
Income tax relating to hedges of net investments in foreign operations included in other comprehensive income	—	28,000,000 EUR	—	21,000,000 EUR
Income tax relating to changes in fair value of financial liability attributable to change in credit risk of liability included in other comprehensive income	—	0 EUR	—	2,000,000 EUR
Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income	—	141,000,000 EUR	—	45,000,000 EUR
Disclosure of temporary difference, unused tax losses and unused tax credits [text block]	—	—	—	—
Disclosure of temporary difference, unused tax losses and unused tax credits [abstract]
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]
Deferred tax assets and liabilities [abstract]
Deferred tax assets	1 117 EUR	—	1 499 EUR	—
Deferred tax liabilities	348,000,000 EUR	—	419,000,000 EUR	—
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]