Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2023-12-31 |
|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||
| Intangible assets and goodwill [abstract] | ||
| Intangible assets and goodwill |
253,000,000
EUR
|
99,000,000
EUR
|
| Investments accounted for using equity method [abstract] | ||
| Investments accounted for using equity method |
244,000,000
EUR
|
333,000,000
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 |
2,503,000,000
EUR
|
1,371,000,000
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 |
1,330,000,000
EUR
|
130,000,000
EUR
|
| Miscellaneous assets [abstract] | ||
| Derivative financial assets |
4,347,000,000
EUR
|
4,403,000,000
EUR
|
| Loans and advances | — | — |
| Loans and advances to banks |
2,049,000,000
EUR
|
2,324,000,000
EUR
|
| Cash and bank balances at central banks |
44,464,000,000
EUR
|
53,656,000,000
EUR
|
| Other assets |
5,518,000,000
EUR
|
5,351,000,000
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 |
1,163,000,000
EUR
|
917,000,000
EUR
|
| Miscellaneous liabilities [abstract] | ||
| Derivative financial liabilities |
2,499,000,000
EUR
|
2,856,000,000
EUR
|
| Deposit liabilities | — | — |
| Deposits from banks |
2,329,000,000
EUR
|
5,352,000,000
EUR
|
| Deposits from customers [abstract] | ||
| Balances on term deposits from customers |
53,533,000,000
EUR
|
51,728,000,000
EUR
|
| Balances on demand deposits from customers |
108,008,000,000
EUR
|
100,943,000,000
EUR
|
| Balances on current accounts from customers |
92,746,000,000
EUR
|
99,948,000,000
EUR
|
| Balances on other deposits from customers |
1,899,000,000
EUR
|
1,846,000,000
EUR
|
| Subordinated liabilities [abstract] | ||
| Subordinated liabilities |
6,613,000,000
EUR
|
5,572,000,000
EUR
|
| Debt instruments issued |
74,542,000,000
EUR
|
66,227,000,000
EUR
|
| Other liabilities |
4,247,000,000
EUR
|
5,741,000,000
EUR
|
| Issued capital [abstract] | ||
| Issued capital |
833,000,000
EUR
|
866,000,000
EUR
|
| Accumulated other comprehensive income [abstract] | ||
| Accumulated other comprehensive income |
409,000,000
EUR
|
315,000,000
EUR
|
| Net assets (liabilities) [abstract] | ||
| Assets |
385,047,000,000
EUR
|
377,909,000,000
EUR
|
| Liabilities |
358,939,000,000
EUR
|
353,741,000,000
EUR
|
| Assets less current liabilities [abstract] |