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 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 |
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 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment | — |
8 181
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
8 084
EUR
|
— | — | — | — | — | — | — | — |
| Investment property | — |
614,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
502,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — |
1 583
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1 943
EUR
|
— | — | — | — | — | — | — | — |
| Deferred tax assets | — |
26,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
46,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other non-current financial assets | — |
972,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
374,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Non-current assets | — |
14 383
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
13 744
EUR
|
— | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Current inventories | — |
84,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
70,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Current tax assets, current | — |
179,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
85,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other current financial assets | — |
193,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
169,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other current non-financial assets | — |
298,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
467,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — |
2 379
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3 463
EUR
|
— | — | — | — | — | — | — | — |
| Current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — |
3 969
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
4 826
EUR
|
— | — | — | — | — | — | — | — |
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — |
10,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
-
EUR
|
— | — | — | — | — | — | — | — |
| Assets | — |
18 362
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
18 570
EUR
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — |
297,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
297,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Share premium | — |
543,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
543,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Treasury shares | — |
1,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — |
3 516
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3 652
EUR
|
— | — | — | — | — | — | — | — |
| Non-controlling interests | — |
660,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
561,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity |
1,000,000
EUR
|
4 176
EUR
|
259,000,000
EUR
|
2 936
EUR
|
3 516
EUR
|
543,000,000
EUR
|
660,000,000
EUR
|
297,000,000
EUR
|
561,000,000
EUR
|
3 652
EUR
|
297,000,000
EUR
|
349,000,000
EUR
|
3,000,000
EUR
|
543,000,000
EUR
|
3 164
EUR
|
4 213
EUR
|
5 032
EUR
|
975,000,000
EUR
|
543,000,000
EUR
|
6 007
EUR
|
149,000,000
EUR
|
-
EUR
|
4 341
EUR
|
297,000,000
EUR
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||
| Non-current provisions for employee benefits | — |
513,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
644,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other non-current provisions | — |
136,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
97,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Deferred tax liabilities | — |
300,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
89,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other non-current non-financial liabilities | — |
953,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
797,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Non-current liabilities | — |
11 046
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
10 997
EUR
|
— | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||
| Current provisions for employee benefits | — |
141,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
104,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other current provisions | — |
24,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
6,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Trade and other current payables | — |
785,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
682,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other current non-financial liabilities | — |
1 008
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
958,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Liabilities included in disposal groups classified as held for sale | — |
3 140
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3 360
EUR
|
— | — | — | — | — | — | — | — |
| Equity and liabilities | — |
18 362
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
18 570
EUR
|
— | — | — | — | — | — | — | — |