Statement Of Financial Position [Abstract]
| Concept |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
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 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||
| Right-of-use assets | — | — | — | — | — | — | — |
203,000,000
EUR
|
106,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — | — |
3,046,000,000
EUR
|
2,879,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — | — | — | — | — |
1,219,000,000
EUR
|
1,218,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — | — |
3,000,000
EUR
|
1,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — | — | — | — | — |
309,000,000
EUR
|
250,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — | — |
9,366,000,000
EUR
|
8,815,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Current tax assets, current | — | — | — | — | — | — | — |
47,000,000
EUR
|
48,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other current financial assets | — | — | — | — | — | — | — |
60,000,000
EUR
|
69,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other current non-financial assets | — | — | — | — | — | — | — |
2,731,000,000
EUR
|
1,931,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — | — |
3,320,000,000
EUR
|
4,439,000,000
EUR
|
— | — | — | — | — | — | — |
3,748,000,000
EUR
|
— | — | — | — | — | — | — |
| Current assets | — | — | — | — | — | — | — |
1 121,9
EUR
|
1 168,8
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — | — |
2 058,5
EUR
|
2 050,3
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — | — |
506,000,000
EUR
|
506,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — | — |
76,000,000
EUR
|
76,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — | — | — | — | — |
82,000,000
EUR
|
83,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — | — |
1 321,1
EUR
|
1 305,1
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — | — |
315,000,000
EUR
|
357,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
1 280,5
EUR
|
76,000,000
EUR
|
506,000,000
EUR
|
315,000,000
EUR
|
94,000,000
EUR
|
82,000,000
EUR
|
1 321,1
EUR
|
1 352,6
EUR
|
1 340,7
EUR
|
1 261,2
EUR
|
60,000,000
EUR
|
357,000,000
EUR
|
76,000,000
EUR
|
506,000,000
EUR
|
83,000,000
EUR
|
1 305,1
EUR
|
1 238,2
EUR
|
54,000,000
EUR
|
390,000,000
EUR
|
76,000,000
EUR
|
1 155,6
EUR
|
91,000,000
EUR
|
506,000,000
EUR
|
1 199,2
EUR
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||
| Non-current provisions | — | — | — | — | — | — | — |
328,000,000
EUR
|
300,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — | — |
409,000,000
EUR
|
441,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial liabilities | — | — | — | — | — | — | — |
52,000,000
EUR
|
58,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — | — |
1,719,000,000
EUR
|
1,624,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||
| Other current provisions | — | — | — | — | — | — | — |
232,000,000
EUR
|
215,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — | — | — | — | — |
2,000,000
EUR
|
24,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other current financial liabilities | — | — | — | — | — | — | — |
60,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other current non-financial liabilities | — | — | — | — | — | — | — |
188,000,000
EUR
|
130,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — | — |
5,341,000,000
EUR
|
5,471,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — | — |
2 058,5
EUR
|
2 050,3
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |