Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||
| Intangible assets and goodwill [abstract] | ||
| Intangible assets and goodwill |
108,000,000
EUR
|
127,000,000
EUR
|
| Investments accounted for using equity method [abstract] | ||
| Investments accounted for using equity method |
474,000,000
EUR
|
564,000,000
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 |
907,000,000
EUR
|
1,155,000,000
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 |
13,000,000
EUR
|
89,000,000
EUR
|
| Miscellaneous assets [abstract] | ||
| Derivative financial assets |
5,212,000,000
EUR
|
3,785,000,000
EUR
|
| Loans and advances | — | — |
| Loans and advances to banks |
2,982,000,000
EUR
|
2,801,000,000
EUR
|
| Loans and advances to customers | — | — |
| Loans to consumers |
9,955,000,000
EUR
|
10,518,000,000
EUR
|
| Cash and bank balances at central banks |
60,865,000,000
EUR
|
66,865,000,000
EUR
|
| Other assets |
4,473,000,000
EUR
|
4,263,000,000
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 |
641,000,000
EUR
|
687,000,000
EUR
|
| Miscellaneous liabilities [abstract] | ||
| Derivative financial liabilities |
4,148,000,000
EUR
|
4,344,000,000
EUR
|
| Deposit liabilities | — | — |
| Deposits from banks |
17,509,000,000
EUR
|
38,076,000,000
EUR
|
| Deposits from customers [abstract] | ||
| Balances on term deposits from customers |
30,096,000,000
EUR
|
18,780,000,000
EUR
|
| Balances on demand deposits from customers |
100,397,000,000
EUR
|
98,790,000,000
EUR
|
| Balances on current accounts from customers |
122,030,000,000
EUR
|
132,983,000,000
EUR
|
| Balances on other deposits from customers |
2,491,000,000
EUR
|
665,000,000
EUR
|
| Subordinated liabilities [abstract] | ||
| Subordinated liabilities |
7,290,000,000
EUR
|
7,549,000,000
EUR
|
| Debt instruments issued |
56,259,000,000
EUR
|
59,688,000,000
EUR
|
| Other liabilities |
5,187,000,000
EUR
|
4,757,000,000
EUR
|
| Issued capital [abstract] | ||
| Issued capital |
898,000,000
EUR
|
940,000,000
EUR
|
| Accumulated other comprehensive income [abstract] | ||
| Accumulated other comprehensive income |
842,000,000
EUR
|
1,227,000,000
EUR
|
| Net assets (liabilities) [abstract] | ||
| Assets |
379,581,000,000
EUR
|
399,113,000,000
EUR
|
| Liabilities |
356,767,000,000
EUR
|
377,114,000,000
EUR
|
| Assets less current liabilities [abstract] |