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 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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — |
264,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
291,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — |
3,043,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
2,871,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — |
366,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
384,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
322,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
333,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
4,906,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
4,714,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||||||||
| Current tax assets, current | — | — | — |
24,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
24,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
547,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
436,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — | — |
5,386,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3,927,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — | — |
196,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
429,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||
| Equity attributable to owners of parent | — | — | — |
4,538,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3,706,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — |
734,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
647,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity |
EUR
|
4,422,000,000
EUR
|
68,000,000
EUR
|
5,272,000,000
EUR
|
5,000,000
EUR
|
4,538,000,000
EUR
|
734,000,000
EUR
|
149,000,000
EUR
|
192,000,000
EUR
|
3,635,000,000
EUR
|
67,000,000
EUR
|
7,000,000
EUR
|
647,000,000
EUR
|
3,706,000,000
EUR
|
192,000,000
EUR
|
EUR
|
181,000,000
EUR
|
4,353,000,000
EUR
|
66,000,000
EUR
|
3,292,000,000
EUR
|
533,000,000
EUR
|
129,000,000
EUR
|
3,825,000,000
EUR
|
3,197,000,000
EUR
|
41,000,000
EUR
|
7,000,000
EUR
|
192,000,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||||||||
| Non-current provisions | — | — | — |
276,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
238,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Trade and other non-current payables | — | — | — |
372,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
347,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — |
54,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
48,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
1,612,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
1,602,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||||||||
| Current provisions | — | — | — |
131,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
144,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — |
2,762,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
2,201,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — |
41,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
24,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Liabilities included in disposal groups classified as held for sale | — | — | — |
113,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
234,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
3,491,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
2,881,000,000
EUR
|
— | — | — | — | — | — | — | — | — |