Statement Of Changes In Equity [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||
| Increase (decrease) through acquisition of subsidiary, equity |
43,000,000
EUR
|
-
EUR
|
-
EUR
|
43,000,000
EUR
|
-
EUR
|
43,000,000
EUR
|
-
EUR
|
94,000,000
EUR
|
-
EUR
|
87,000,000
EUR
|
-
EUR
|
-
EUR
|
7,000,000
EUR
|
87,000,000
EUR
|
| Increase (decrease) through transactions with owners, equity |
2,542,000,000
EUR
|
2,812,000,000
EUR
|
-
EUR
|
2,972,000,000
EUR
|
430,000,000
EUR
|
160,000,000
EUR
|
-
EUR
|
144,000,000
EUR
|
229,000,000
EUR
|
1,844,000,000
EUR
|
1,000,000
EUR
|
-
EUR
|
1,470,000,000
EUR
|
1,614,000,000
EUR
|
| Reduction of issued capital | — |
497,000,000
EUR
|
1,000,000
EUR
|
497,000,000
EUR
|
496,000,000
EUR
|
— | — | — | — | — | — | — | — | — |