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 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
261,000,000
EUR
|
— | — | — |
209,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Investment property | — | — | — | — | — | — |
4 024,6
EUR
|
— | — | — |
4 472,1
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — |
2,094,000,000
EUR
|
— | — | — |
2,094,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
185,000,000
EUR
|
— | — | — |
312,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — | — | — | — |
126,000,000
EUR
|
— | — | — |
443,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — |
5 132,2
EUR
|
— | — | — |
5 455,4
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Trade and other current receivables | — | — | — | — | — | — |
8,280,000,000
EUR
|
— | — | — |
7,999,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Current tax assets, current | — | — | — | — | — | — |
114,000,000
EUR
|
— | — | — |
94,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Other current financial assets | — | — | — | — | — | — |
220,000,000
EUR
|
— | — | — |
273,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
1 277,5
EUR
|
— | — | — |
8,302,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — | — | — | — | — |
774,000,000
EUR
|
— | — | — |
3,350,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Current assets | — | — | — | — | — | — |
3 817,8
EUR
|
— | — | — |
3 632,4
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
8 950,0
EUR
|
— | — | — |
9 087,9
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
2,640,000,000
EUR
|
— | — | — |
2,552,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
1 758,5
EUR
|
— | — | — |
2 144,4
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — |
9,582,000,000
EUR
|
— | — | — |
1 191,1
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
9,582,000,000
EUR
|
2,338,000,000
EUR
|
1 758,5
EUR
|
2,640,000,000
EUR
|
239,000,000
EUR
|
1 284,7
EUR
|
2 716,7
EUR
|
2 144,4
EUR
|
1 191,1
EUR
|
3,118,000,000
EUR
|
3 335,5
EUR
|
1 610,6
EUR
|
331,000,000
EUR
|
2,552,000,000
EUR
|
1 401,4
EUR
|
4,079,000,000
EUR
|
546,000,000
EUR
|
2,454,000,000
EUR
|
3 229,4
EUR
|
1 229,3
EUR
|
2 000,1
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions | — | — | — | — | — | — |
240,000,000
EUR
|
— | — | — |
251,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — |
697,000,000
EUR
|
— | — | — |
534,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — |
2 630,5
EUR
|
— | — | — |
2 823,7
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Trade and other current payables | — | — | — | — | — | — |
1 798,4
EUR
|
— | — | — |
1 639,6
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — | — | — | — |
210,000,000
EUR
|
— | — | — |
61,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — |
3 602,8
EUR
|
— | — | — |
2 928,6
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — |
8 950,0
EUR
|
— | — | — |
9 087,9
EUR
|
— | — | — | — | — | — | — | — | — | — |