Statement Of Changes In Equity [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — | — |
21,999,000,000
EUR
|
6,093,000,000
EUR
|
— |
51,000,000
EUR
|
1,987,000,000
EUR
|
1,231,000,000
EUR
|
— |
1,540,000,000
EUR
|
1,227,000,000
EUR
|
239,000,000
EUR
|
9,000,000
EUR
|
6,000,000
EUR
|
21,994,000,000
EUR
|
12,970,000,000
EUR
|
5,000,000
EUR
|
38,000,000
EUR
|
940,000,000
EUR
|
— | — |
1,854,000,000
EUR
|
— |
20,989,000,000
EUR
|
940,000,000
EUR
|
— |
45,000,000
EUR
|
36,000,000
EUR
|
6,870,000,000
EUR
|
1,733,000,000
EUR
|
— |
24,000,000
EUR
|
24,000,000
EUR
|
29,000,000
EUR
|
12,970,000,000
EUR
|
1,987,000,000
EUR
|
20,989,000,000
EUR
|
162,000,000
EUR
|
— |
21,471,000,000
EUR
|
20,000,000
EUR
|
81,000,000
EUR
|
2,046,000,000
EUR
|
1,987,000,000
EUR
|
12,970,000,000
EUR
|
21,471,000,000
EUR
|
32,000,000
EUR
|
177,000,000
EUR
|
4,947,000,000
EUR
|
41,000,000
EUR
|
1,419,000,000
EUR
|
1,648,000,000
EUR
|
940,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,234,000,000
EUR
|
45,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
3,000,000
EUR
|
1,737,000,000
EUR
|
— | — |
506,000,000
EUR
|
— | — | — |
1,231,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
1,740,000,000
EUR
|
359,000,000
EUR
|
— |
45,000,000
EUR
|
— | — | — | — | — | — | — |
314,000,000
EUR
|
— | — | — | — | — | — | — |
359,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Issue of equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
994,000,000
EUR
|
— | — | — | — |
994,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
994,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |