Statement Of Financial Position [Abstract]
| Concept |
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 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 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 financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Property, plant and equipment | — | — |
60,000,000
EUR
|
— | — | — | — |
24,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — |
446,000,000
EUR
|
— | — | — | — |
469,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — |
140,000,000
EUR
|
— | — | — | — |
140,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — |
64,000,000
EUR
|
— | — | — | — |
51,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — |
14,000,000
EUR
|
— | — | — | — |
13,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
9,000,000
EUR
|
— | — | — | — |
112,000,000
EUR
|
— | — | — | — | — |
276,000,000
EUR
|
— | — | — | — |
| Assets | — | — |
2,245,000,000
EUR
|
— | — | — | — |
1,913,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital | — | — |
1,000,000
EUR
|
— | — | — | — |
1,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — |
0
EUR
|
— | — | — | — |
2,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — |
1,057,000,000
EUR
|
— | — | — | — |
957,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
247,000,000
EUR
|
0
EUR
|
1,057,000,000
EUR
|
810,000,000
EUR
|
0
EUR
|
1,000,000
EUR
|
247,000,000
EUR
|
957,000,000
EUR
|
1,000,000
EUR
|
710,000,000
EUR
|
2,000,000
EUR
|
1,000,000
EUR
|
569,000,000
EUR
|
817,000,000
EUR
|
1,000,000
EUR
|
247,000,000
EUR
|
-
EUR
|
1,000,000
EUR
|
| Liabilities [abstract] | ||||||||||||||||||
| Liabilities | — | — |
1,188,000,000
EUR
|
— | — | — | — |
956,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — |
2,245,000,000
EUR
|
— | — | — | — |
1,913,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |