Statement Of Financial Position [Abstract]
| Concept |
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 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
3,488,000,000
EUR
|
— | — | — | — | — |
4,449,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — | — |
3,757,000,000
EUR
|
— | — | — | — | — |
3,690,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — |
1 942,9
EUR
|
— | — | — | — | — |
2 075,1
EUR
|
— | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — |
4,273,000,000
EUR
|
— | — | — | — | — |
6,111,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
1,366,000,000
EUR
|
— | — | — | — | — |
1,321,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — |
3 337,0
EUR
|
— | — | — | — | — |
3 750,5
EUR
|
— | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Trade and other current receivables | — | — | — | — | — | — |
1 332,7
EUR
|
— | — | — | — | — |
1 520,0
EUR
|
— | — | — | — | — | — | — | — |
| Current tax assets, current | — | — | — | — | — | — |
461,000,000
EUR
|
— | — | — | — | — |
470,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other current financial assets | — | — | — | — | — | — |
170,000,000
EUR
|
— | — | — | — | — |
234,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
1 594,5
EUR
|
— | — | — | — | — |
1 477,8
EUR
|
— | — | — | — | — | — | — | — |
| Current assets | — | — | — | — | — | — |
3 229,1
EUR
|
— | — | — | — | — |
3 298,6
EUR
|
— | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
6 566,1
EUR
|
— | — | — | — | — |
7 049,1
EUR
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
542,000,000
EUR
|
— | — | — | — | — |
542,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
1 238,0
EUR
|
— | — | — | — | — |
1 263,8
EUR
|
— | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — |
477,000,000
EUR
|
— | — | — | — | — |
583,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity |
477,000,000
EUR
|
1 238,0
EUR
|
542,000,000
EUR
|
1 445,1
EUR
|
4,459,000,000
EUR
|
2,323,000,000
EUR
|
1 285,7
EUR
|
1 263,8
EUR
|
583,000,000
EUR
|
2,481,000,000
EUR
|
1 286,4
EUR
|
2,296,000,000
EUR
|
1 322,1
EUR
|
542,000,000
EUR
|
1 209,2
EUR
|
2,962,000,000
EUR
|
416,000,000
EUR
|
483,000,000
EUR
|
9,593,000,000
EUR
|
1 007,6
EUR
|
530,000,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions for employee benefits | — | — | — | — | — | — |
1,977,000,000
EUR
|
— | — | — | — | — |
1,928,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other non-current provisions | — | — | — | — | — | — |
925,000,000
EUR
|
— | — | — | — | — |
722,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — |
844,000,000
EUR
|
— | — | — | — | — |
1,229,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other non-current financial liabilities | — | — | — | — | — | — |
914,000,000
EUR
|
— | — | — | — | — |
1,157,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — |
3 162,6
EUR
|
— | — | — | — | — |
3 748,1
EUR
|
— | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Trade and other current payables | — | — | — | — | — | — |
1 089,6
EUR
|
— | — | — | — | — |
1 098,6
EUR
|
— | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — | — | — | — |
1,258,000,000
EUR
|
— | — | — | — | — |
1,374,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other current financial liabilities | — | — | — | — | — | — |
541,000,000
EUR
|
— | — | — | — | — |
792,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — |
2 117,8
EUR
|
— | — | — | — | — |
1 978,9
EUR
|
— | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — |
6 566,1
EUR
|
— | — | — | — | — |
7 049,1
EUR
|
— | — | — | — | — | — | — | — |