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 |
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 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||||||||||||||
| Goodwill | — | — |
222,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
215,000,000
EUR
|
— | — | — | — | — | — | — | — |
217,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — |
1,235,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
1,230,000,000
EUR
|
— | — | — | — | — | — | — | — |
1,305,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — |
109,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
230,000,000
EUR
|
— | — | — | — | — | — | — | — |
307,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — |
278,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
252,000,000
EUR
|
— | — | — | — | — | — | — | — |
485,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — |
951,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
795,000,000
EUR
|
— | — | — | — | — | — | — | — |
1,096,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — |
19,954,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
20,286,000,000
EUR
|
— | — | — | — | — | — | — | — |
22,158,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||||||||||||||
| Current inventories | — | — |
567,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
543,000,000
EUR
|
— | — | — | — | — | — | — | — |
737,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Other current financial assets | — | — |
484,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
607,000,000
EUR
|
— | — | — | — | — | — | — | — |
800,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
6,658,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
6,423,000,000
EUR
|
— | — | — | — | — | — | — | — |
3,715,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — |
74,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
-
EUR
|
— | — | — | — | — | — | — | — |
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Current assets | — | — |
10,729,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
9,895,000,000
EUR
|
— | — | — | — | — | — | — | — |
8,539,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Assets | — | — |
30,683,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
30,181,000,000
EUR
|
— | — | — | — | — | — | — | — |
30,697,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||||||||
| Issued capital | — | — |
643,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
429,000,000
EUR
|
— | — | — | — | — | — | — | — |
429,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Share premium | — | — |
4,949,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
4,139,000,000
EUR
|
— | — | — | — | — | — | — | — |
4,139,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — |
25,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
25,000,000
EUR
|
— | — | — | — | — | — | — | — |
67,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — |
3,824,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
5,351,000,000
EUR
|
— | — | — | — | — | — | — | — |
2,382,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — |
8,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
9,000,000
EUR
|
— | — | — | — | — | — | — | — |
15,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
12,542,000,000
EUR
|
25,000,000
EUR
|
3,816,000,000
EUR
|
3,824,000,000
EUR
|
4,949,000,000
EUR
|
8,000,000
EUR
|
643,000,000
EUR
|
3,151,000,000
EUR
|
9,000,000
EUR
|
5,351,000,000
EUR
|
429,000,000
EUR
|
25,000,000
EUR
|
4,139,000,000
EUR
|
5,342,000,000
EUR
|
9,894,000,000
EUR
|
-
EUR
|
2,299,000,000
EUR
|
429,000,000
EUR
|
2,382,000,000
EUR
|
15,000,000
EUR
|
15,000,000
EUR
|
2,284,000,000
EUR
|
2,397,000,000
EUR
|
4,139,000,000
EUR
|
67,000,000
EUR
|
67,000,000
EUR
|
429,000,000
EUR
|
4,139,000,000
EUR
|
403,000,000
EUR
|
2,522,000,000
EUR
|
2,620,000,000
EUR
|
403,000,000
EUR
|
98,000,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||||||||||||||
| Non-current provisions for employee benefits | — | — |
1,939,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
2,041,000,000
EUR
|
— | — | — | — | — | — | — | — |
2,117,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — |
1,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
22,000,000
EUR
|
— | — | — | — | — | — | — | — |
142,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — |
22,773,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
23,745,000,000
EUR
|
— | — | — | — | — | — | — | — |
15,651,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Current liabilities | — | — |
11,726,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
11,778,000,000
EUR
|
— | — | — | — | — | — | — | — |
12,649,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — |
34,499,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
35,523,000,000
EUR
|
— | — | — | — | — | — | — | — |
28,300,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — |
30,683,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
30,181,000,000
EUR
|
— | — | — | — | — | — | — | — |
30,697,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |