Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
2 475
EUR
|
2 355
EUR
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements |
116,000,000
EUR
|
30,000,000
EUR
|
— |
| Categories of financial assets [abstract] | |||
| Financial assets at fair value through profit or loss [abstract] | |||
| Financial assets at fair value through profit or loss, mandatorily measured at fair value | — | — | — |
| Financial assets at fair value through profit or loss, classified as held for trading |
10 509
EUR
|
8 327
EUR
|
— |
| Financial assets at fair value through profit or loss |
28 132
EUR
|
23 539
EUR
|
— |
| Financial assets at fair value through other comprehensive income [abstract] | |||
| Financial assets at fair value through other comprehensive income |
24 261
EUR
|
18 587
EUR
|
— |
| Financial assets at amortised cost |
265 875
EUR
|
263 625
EUR
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
61 407
EUR
|
53 961
EUR
|
67 481
EUR
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | |||
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners |
1,000,000
EUR
|
4,000,000
EUR
|
— |
| Miscellaneous assets [abstract] | |||
| Restricted cash and cash equivalents |
0
EUR
|
0
EUR
|
— |
| Derivative financial assets | — | — | — |
| Derivative financial assets held for hedging |
271,000,000
EUR
|
295,000,000
EUR
|
— |
| Loans and advances | — | — | — |
| Loans and advances to banks |
225,000,000
EUR
|
222,000,000
EUR
|
— |
| Reverse repurchase agreements and cash collateral on securities borrowed |
20 804
EUR
|
25 345
EUR
|
— |
| Other assets |
1 911
EUR
|
1 691
EUR
|
— |
| Categories of financial liabilities [abstract] | |||
| Financial liabilities at fair value through profit or loss [abstract] | |||
| Financial liabilities at fair value through profit or loss that meet definition of held for trading |
5 677
EUR
|
7 050
EUR
|
— |
| Financial liabilities at fair value through profit or loss |
22 356
EUR
|
21 840
EUR
|
— |
| Financial liabilities at amortised cost |
306 050
EUR
|
280 874
EUR
|
— |
| Financial liabilities |
328 723
EUR
|
303 116
EUR
|
— |
| Miscellaneous liabilities [abstract] | |||
| Derivative financial liabilities | — | — | — |
| Derivative financial liabilities held for hedging |
316,000,000
EUR
|
401,000,000
EUR
|
— |
| Deposit liabilities | — | — | — |
| Deposits from banks |
6 456
EUR
|
6 136
EUR
|
— |
| Other liabilities |
2 678
EUR
|
2 611
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
373 048
EUR
|
346 921
EUR
|
— |
| Liabilities |
348 737
EUR
|
322 661
EUR
|
— |
| Assets less current liabilities [abstract] |