Analysis Of Income And Expense [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||
| Revenue [abstract] | ||||||||||||||||
| Interest income | — | — | — | — | — | — |
747,000,000
EUR
|
— | — | — |
605,000,000
EUR
|
— | — | — | — | — |
| Dividend income | — | — | — | — | — | — |
42,000,000
EUR
|
— | — | — |
21,000,000
EUR
|
— | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||
| Interest expense | — | — | — | — | — | — |
1,267,000
EUR
|
— | — | — |
1,251,000
EUR
|
— | — | — | — | — |
| Interest income (expense) | — | — | — | — | — | — |
3,327,000
EUR
|
— | — | — |
3,121,000
EUR
|
— | — | — | — | — |
| Other operating income (expense) | — | — | — | — | — | — |
120,000,000
EUR
|
— | — | — |
117,000,000
EUR
|
— | — | — | — | — |
| Selling, general and administrative expense [abstract] | ||||||||||||||||
| General and administrative expense | — | — | — | — | — | — |
2,978,000
EUR
|
— | — | — |
2,832,000
EUR
|
— | — | — | — | — |
| Fee and commission income (expense) [abstract] | ||||||||||||||||
| Fee and commission income [abstract] | ||||||||||||||||
| Fee and commission income | — | — | — | — | — | — |
2,852,000
EUR
|
— | — | — |
2,465,000
EUR
|
— | — | — | — | — |
| Fee and commission expense [abstract] | ||||||||||||||||
| Fee and commission expense | — | — | — | — | — | — |
867,000,000
EUR
|
— | — | — |
780,000,000
EUR
|
— | — | — | — | — |
| Fee and commission income (expense) | — | — | — | — | — | — |
1,985,000
EUR
|
— | — | — |
1,684,000
EUR
|
— | — | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||||
| Classes of employee benefits expense [abstract] | ||||||||||||||||
| Employee benefits expense | — | — | — | — | — | — |
1,579,000
EUR
|
— | — | — |
1,521,000
EUR
|
— | — | — | — | — |
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||||||||||
| Depreciation and amortisation expense [abstract] | ||||||||||||||||
| Depreciation and amortisation expense | — | — | — | — | — | — |
407,000,000
EUR
|
— | — | — |
384,000,000
EUR
|
— | — | — | — | — |
| Disclosure of attribution of expenses by nature to their function [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of attribution of expenses by nature to their function [abstract] | ||||||||||||||||
| Disclosure of attribution of expenses by nature to their function [line items] | ||||||||||||||||
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||
| Other comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — |
29,000,000
EUR
|
— | — | — |
56,000,000
EUR
|
— | — | — | — | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||
| Share of profit (loss) of associates accounted for using equity method | — | — | — | — | — | — |
46,000,000
EUR
|
— | — | — |
41,000,000
EUR
|
— | — | — | — | — |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method, before tax [abstract] | ||||||||||||||||
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, before tax | — | — | — | — | — | — |
24,000,000
EUR
|
— | — | — |
8,000,000
EUR
|
— | — | — | — | — |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, before tax | — | — | — | — | — | — |
3,000,000
EUR
|
— | — | — |
2,000,000
EUR
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — | — | — | — | — | — |
2,000,000
EUR
|
— | — | — |
3,000,000
EUR
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — | — | — | — |
20,000,000
EUR
|
— | — | — |
1,000,000
EUR
|
— | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income |
164,000,000
EUR
|
121,000,000
EUR
|
0
EUR
|
0
EUR
|
1,493,000
EUR
|
0
EUR
|
1,658,000
EUR
|
1,372,000
EUR
|
804,000,000
EUR
|
0
EUR
|
103,000,000
EUR
|
50,000,000
EUR
|
0
EUR
|
53,000,000
EUR
|
750,000,000
EUR
|
0
EUR
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — |
1,493,000
EUR
|
— | — | — |
53,000,000
EUR
|
— | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — |
164,000,000
EUR
|
— | — | — |
50,000,000
EUR
|
— | — | — | — | — |