Analysis Of Income And Expense [Abstract]
| Concept |
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 |
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 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||||||||||||||
| Interest income |
1,113,700.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,154,100.0
EUR
|
— | — | — | — | — |
| Dividend income |
28,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
36,000,000.0
EUR
|
— | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||||||||||||||||
| Interest expense |
2,002,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,787,000,000.0
EUR
|
— | — | — | — | — |
| Operating expense |
5,240,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
5,338,000,000.0
EUR
|
— | — | — | — | — |
| Fee and commission income (expense) [abstract] | ||||||||||||||||||||||||||||||
| Fee and commission income [abstract] | ||||||||||||||||||||||||||||||
| Fee and commission income |
3,291,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,747,000,000.0
EUR
|
— | — | — | — | — |
| Fee and commission expense [abstract] | ||||||||||||||||||||||||||||||
| Fee and commission expense |
743,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
912,000,000.0
EUR
|
— | — | — | — | — |
| Fee and commission income (expense) |
2,548,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,835,000,000.0
EUR
|
— | — | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||||||||||||||||||
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||||||||||||||||||||||||
| Depreciation and amortisation expense [abstract] | ||||||||||||||||||||||||||||||
| Depreciation and amortisation expense |
810,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
732,000,000.0
EUR
|
— | — | — | — | — |
| Other expenses, by nature |
1,525,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,420,000,000.0
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, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||||||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations |
181,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
24,000,000.0
EUR
|
— | — | — | — | — |
| Other comprehensive income, before tax, hedges of net investments in foreign operations |
155,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
20,000,000.0
EUR
|
— | — | — | — | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||||||||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method |
11,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
52,000,000.0
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 be reclassified to profit or loss, before tax |
8,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
23,000,000.0
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 |
138,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
63,000,000.0
EUR
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss |
364,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
110,000,000.0
EUR
|
— | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||||||||||||||
| Comprehensive income |
3,505,000,000.0
EUR
|
103,000,000.0
EUR
|
299,000,000.0
EUR
|
2,842,000,000.0
EUR
|
920,000,000.0
EUR
|
155,000,000.0
EUR
|
8,000,000.0
EUR
|
162,000,000.0
EUR
|
–
EUR
|
–
EUR
|
181,000,000.0
EUR
|
3,000,000.0
EUR
|
2,000,000.0
EUR
|
3,502,000,000.0
EUR
|
–
EUR
|
217,000,000.0
EUR
|
24,000,000.0
EUR
|
23,000,000.0
EUR
|
4,737,000,000.0
EUR
|
–
EUR
|
4,591,000,000.0
EUR
|
399,000,000.0
EUR
|
20,000,000.0
EUR
|
2,000,000.0
EUR
|
4,739,000,000.0
EUR
|
57,000,000.0
EUR
|
–
EUR
|
96,000,000.0
EUR
|
16,000,000.0
EUR
|
–
EUR
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||||||||||||||||
| Comprehensive income, attributable to owners of parent |
3,502,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,737,000,000.0
EUR
|
— | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||||||||||||||||
| Comprehensive income, attributable to non-controlling interests |
3,000,000.0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,000,000.0
EUR
|
— | — | — | — | — |