Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Property, plant and equipment [abstract] | ||||
| Property, plant and equipment |
268,000,000
EUR
|
290,000,000
EUR
|
— | — |
| Intangible assets and goodwill [abstract] | ||||
| Goodwill |
98,000,000
EUR
|
96,000,000
EUR
|
— | — |
| Investment property [abstract] | ||||
| Investment property |
84,000,000
EUR
|
104,000,000
EUR
|
— | — |
| Investments accounted for using equity method [abstract] | ||||
| Investments accounted for using equity method |
25,000,000
EUR
|
42,000,000
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 |
156,000,000
EUR
|
257,000,000
EUR
|
— | — |
| Financial assets at fair value through profit or loss |
557,000,000
EUR
|
611,000,000
EUR
|
— | — |
| Financial assets at fair value through other comprehensive income [abstract] | ||||
| Financial assets at fair value through other comprehensive income |
2,743,000
EUR
|
3,754,000
EUR
|
— | — |
| Financial assets at amortised cost |
51,585,000
EUR
|
48,448,000
EUR
|
— | — |
| Cash and cash equivalents [abstract] | ||||
| Cash and cash equivalents |
520,000,000
EUR
|
1,894,000
EUR
|
1,894,000
EUR
|
907,000,000
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 or as held for distribution to owners |
25,000,000
EUR
|
–
EUR
|
— | — |
| Miscellaneous assets [abstract] | ||||
| Derivative financial assets | — | — | — | — |
| Derivative financial assets held for hedging |
338,000,000
EUR
|
178,000,000
EUR
|
— | — |
| Debt instruments held [abstract] | ||||
| Debt instruments held |
3,167,000
EUR
|
2,319,000
EUR
|
— | — |
| Loans and advances | — | — | — | — |
| Loans and advances to banks |
12,655,000
EUR
|
11,166,000
EUR
|
— | — |
| Loans and advances to customers |
35,763,000
EUR
|
34,963,000
EUR
|
— | — |
| Cash and bank balances at central banks |
520,000,000
EUR
|
1,894,000
EUR
|
— | — |
| Other assets |
280,000,000
EUR
|
276,000,000
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 |
692,000,000
EUR
|
301,000,000
EUR
|
— | — |
| Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently |
204,000,000
EUR
|
234,000,000
EUR
|
— | — |
| Financial liabilities at amortised cost |
50,669,000
EUR
|
49,666,000
EUR
|
— | — |
| Miscellaneous liabilities [abstract] | ||||
| Derivative financial liabilities | — | — | — | — |
| Derivative financial liabilities held for hedging |
245,000,000
EUR
|
107,000,000
EUR
|
— | — |
| Deposit liabilities | — | — | — | — |
| Deposits from banks |
6,344,000
EUR
|
7,361,000
EUR
|
— | — |
| Deposits from customers [abstract] | ||||
| Deposits from customers |
34,288,000
EUR
|
35,148,000
EUR
|
— | — |
| Other liabilities |
797,000,000
EUR
|
868,000,000
EUR
|
— | — |
| Net assets (liabilities) [abstract] | ||||
| Assets |
56,523,000
EUR
|
56,325,000
EUR
|
— | — |
| Liabilities |
52,532,000
EUR
|
51,947,000
EUR
|
— | — |
| Assets less current liabilities [abstract] |