Statement Of Financial Position [Abstract]
| Concept |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||
| Deferred tax assets |
806,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
1,919,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current assets |
2 328,3
EUR
|
— | — | — | — | — | — | — | — | — |
2 569,9
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||
| Other current financial assets |
7,386,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
5,314,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
7,858,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
7,343,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets |
1 804,8
EUR
|
— | — | — | — | — | — | — | — | — |
1 458,5
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Assets |
4 133,0
EUR
|
— | — | — | — | — | — | — | — | — |
4 047,1
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||
| Issued capital |
754,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
754,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
4,107,000,000
EUR
|
1,681,000,000
EUR
|
7,633,000,000
EUR
|
428,000,000
EUR
|
1 237,0
EUR
|
754,000,000
EUR
|
1,980,000,000
EUR
|
4,000,000,000
EUR
|
7,445,000,000
EUR
|
7,620,000,000
EUR
|
4,757,000,000
EUR
|
166,000,000
EUR
|
1,980,000,000
EUR
|
1,681,000,000
EUR
|
754,000,000
EUR
|
2,626,000,000
EUR
|
1,980,000,000
EUR
|
1,681,000,000
EUR
|
7,595,000,000
EUR
|
754,000,000
EUR
|
418,000,000
EUR
|
8,966,000,000
EUR
|
| Liabilities [abstract] | ||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||
| Non-current provisions for employee benefits |
7,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
7,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities |
2 373,5
EUR
|
— | — | — | — | — | — | — | — | — |
2 391,6
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||
| Current provisions |
717,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
138,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities |
1 348,9
EUR
|
— | — | — | — | — | — | — | — | — |
1 179,8
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Liabilities |
3 722,4
EUR
|
— | — | — | — | — | — | — | — | — |
3 571,4
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
4 133,0
EUR
|
— | — | — | — | — | — | — | — | — |
4 047,1
EUR
|
— | — | — | — | — | — | — | — | — | — | — |