Statement Of Financial Position [Abstract]
| Concept |
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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||
| Assets [abstract] | ||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||
| Right-of-use assets | — | — | — |
47,000,000
EUR
|
— |
44,000,000
EUR
|
— | — | — | — |
57,000,000
EUR
|
— | — | — | — | — |
| Intangible assets other than goodwill | — | — | — |
54,000,000
EUR
|
— |
28,000,000
EUR
|
— | — | — | — |
31,000,000
EUR
|
— | — | — | — | — |
| Investments accounted for using equity method | — | — | — |
498,000,000
EUR
|
— |
364,000,000
EUR
|
— | — | — | — |
361,000,000
EUR
|
— | — | — | — | — |
| Trade and other non-current receivables | — | — | — |
6,000,000
EUR
|
— |
-
EUR
|
— | — | — | — |
47,000,000
EUR
|
— | — | — | — | — |
| Non-current assets | — | — | — |
5,015,000,000
EUR
|
— |
4,892,000,000
EUR
|
— | — | — | — |
5,011,000,000
EUR
|
— | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||
| Current inventories | — | — | — |
127,000,000
EUR
|
— |
140,000,000
EUR
|
— | — | — | — |
100,000,000
EUR
|
— | — | — | — | — |
| Trade and other current receivables | — | — | — |
401,000,000
EUR
|
— |
367,000,000
EUR
|
— | — | — | — |
266,000,000
EUR
|
— | — | — | — | — |
| Current tax assets, current | — | — | — |
1,000,000
EUR
|
— |
1,000,000
EUR
|
— | — | — | — |
1,000,000
EUR
|
— | — | — | — | — |
| Cash and cash equivalents | — | — | — |
853,000,000
EUR
|
— |
890,000,000
EUR
|
— | — | — | — |
1,146,000,000
EUR
|
— | — | — | — | — |
| Current assets | — | — | — |
1,383,000,000
EUR
|
— |
1,398,000,000
EUR
|
— | — | — | — |
1,513,000,000
EUR
|
— | — | — | — | — |
| Assets | — | — | — |
6,398,000,000
EUR
|
— |
6,314,000,000
EUR
|
— | — | — | — |
6,523,000,000
EUR
|
— | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||
| Equity [abstract] | ||||||||||||||||
| Issued capital | — | — | — |
18,000,000
EUR
|
— |
18,000,000
EUR
|
— | — | — | — |
18,000,000
EUR
|
— | — | — | — | — |
| Retained earnings | — | — | — |
2,750,000,000
EUR
|
— |
2,443,000,000
EUR
|
— | — | — | — |
2,224,000,000
EUR
|
— | — | — | — | — |
| Other reserves | — | — | — |
497,000,000
EUR
|
— |
497,000,000
EUR
|
— | — | — | — |
497,000,000
EUR
|
— | — | — | — | — |
| Equity attributable to owners of parent | — | — | — |
3,232,000,000
EUR
|
— |
2,924,000,000
EUR
|
— | — | — | — |
2,716,000,000
EUR
|
— | — | — | — | — |
| Equity |
18,000,000
EUR
|
32,000,000
EUR
|
2,750,000,000
EUR
|
3,232,000,000
EUR
|
497,000,000
EUR
|
2,924,000,000
EUR
|
2,443,000,000
EUR
|
18,000,000
EUR
|
34,000,000
EUR
|
497,000,000
EUR
|
2,716,000,000
EUR
|
2,201,000,000
EUR
|
2,694,000,000
EUR
|
18,000,000
EUR
|
22,000,000
EUR
|
497,000,000
EUR
|
| Liabilities [abstract] | ||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||
| Deferred tax liabilities | — | — | — |
452,000,000
EUR
|
— |
361,000,000
EUR
|
— | — | — | — |
309,000,000
EUR
|
— | — | — | — | — |
| Non-current liabilities | — | — | — |
2,021,000,000
EUR
|
— |
2,268,000,000
EUR
|
— | — | — | — |
2,722,000,000
EUR
|
— | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||
| Trade and other current payables | — | — | — |
751,000,000
EUR
|
— |
730,000,000
EUR
|
— | — | — | — |
675,000,000
EUR
|
— | — | — | — | — |
| Current tax liabilities, current | — | — | — |
0
EUR
|
— |
0
EUR
|
— | — | — | — |
0
EUR
|
— | — | — | — | — |
| Current liabilities | — | — | — |
1,145,000,000
EUR
|
— |
1,122,000,000
EUR
|
— | — | — | — |
1,085,000,000
EUR
|
— | — | — | — | — |
| Liabilities | — | — | — |
3,166,000,000
EUR
|
— |
3,390,000,000
EUR
|
— | — | — | — |
3,807,000,000
EUR
|
— | — | — | — | — |
| Equity and liabilities | — | — | — |
6,398,000,000
EUR
|
— |
6,314,000,000
EUR
|
— | — | — | — |
6,523,000,000
EUR
|
— | — | — | — | — |