Statement Of Financial Position [Abstract]

KBC Groupe NV - Filing #3173656

Concept	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31
Statement of financial position [abstract]
Assets [abstract]
Reinsurance contracts held that are assets	—	64,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	55,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Investments in subsidiaries, joint ventures and associates reported in separate financial statements	—	30,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	32,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Non-current assets or disposal groups classified as held for sale or as held for distribution to owners	—	4,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	8 054 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Current tax assets	—	176,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	174,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Deferred tax assets	—	724,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1 001 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Cash and cash equivalents	—	53 961 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	67 481 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	63 554 EUR	—	—	—	—
Assets	—	346 921 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	354 545 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Equity attributable to owners of parent	—	22 010 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	20 319 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Non-controlling interests	—	0 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity	434,000,000 EUR	24 260 EUR	1 799 EUR	0 EUR	14 332 EUR	2 250 EUR	222,000,000 EUR	1 166 EUR	127,000,000 EUR	596,000,000 EUR	0 EUR	5 548 EUR	1 461 EUR	240,000,000 EUR	497,000,000 EUR	22 010 EUR	579,000,000 EUR	21 819 EUR	467,000,000 EUR	75,000,000 EUR	2 221 EUR	1 095 EUR	0 EUR	690,000,000 EUR	1 500 EUR	84,000,000 EUR	0 EUR	5 542 EUR	12 626 EUR	0 EUR	1 461 EUR	125,000,000 EUR	20 319 EUR	937,000,000 EUR	0 EUR	13 289 EUR	627,000,000 EUR	1 500 EUR	22 404 EUR	20 904 EUR	0 EUR	5 528 EUR	1 460 EUR
Liabilities [abstract]
Provisions [abstract]
Provisions	—	183,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	418,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Current tax liabilities	—	99,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	150,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Deferred tax liabilities	—	373,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	312,000,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Liabilities included in disposal groups classified as held for sale	—	0 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2 020 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Liabilities	—	322 661 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	332 727 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Equity and liabilities	—	346 921 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	354 545 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—