Statement Of Changes In Equity [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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||
| Dividends recognised as distributions to owners of parent |
–
EUR
|
–
EUR
|
–
EUR
|
6,152,000,000
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
6,152,000,000
EUR
|
6,152,000,000
EUR
|
1,933,000,000
EUR
|
–
EUR
|
–
EUR
|
1,933,000,000
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
1,933,000,000
EUR
|
–
EUR
|
–
EUR
|
| Dividends recognised as distributions to non-controlling interests |
140,000,000
EUR
|
–
EUR
|
–
EUR
|
43,000,000
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
183,000,000
EUR
|
43,000,000
EUR
|
101,000,000
EUR
|
–
EUR
|
–
EUR
|
42,000,000
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
59,000,000
EUR
|
42,000,000
EUR
|
–
EUR
|
–
EUR
|
| Increase (decrease) through disposal of subsidiary, equity |
–
EUR
|
–
EUR
|
4,000,000
EUR
|
0
EUR
|
–
EUR
|
4,000,000
EUR
|
–
EUR
|
–
EUR
|
0
EUR
|
–
EUR
|
0
EUR
|
4,000,000
EUR
|
0
EUR
|
–
EUR
|
–
EUR
|
5,000,000
EUR
|
–
EUR
|
5,000,000
EUR
|
–
EUR
|
5,000,000
EUR
|
–
EUR
|
0
EUR
|
0
EUR
|
–
EUR
|
| Increase (decrease) through transactions with owners, equity |
139,000,000
EUR
|
–
EUR
|
–
EUR
|
6,200,000,000
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
6,339,000,000
EUR
|
6,200,000,000
EUR
|
2,035,000,000
EUR
|
–
EUR
|
–
EUR
|
1,976,000,000
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
59,000,000
EUR
|
1,976,000,000
EUR
|
–
EUR
|
–
EUR
|