Statement Of Changes In Equity [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 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||
| Statement of changes in equity [line items] | |||||||
| Increase (decrease) through transactions with owners, equity |
34,000,000
EUR
|
12,000,000
EUR
|
22,000,000
EUR
|
34,000,000
EUR
|
— | — | — |
| Purchase of treasury shares | — | — | — | — |
4,000,000
EUR
|
4,000,000
EUR
|
4,000,000
EUR
|