Statement Of Financial Position [Abstract]
| Concept |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-01-01 |
As at 2023-01-01 |
As at 2023-01-01 |
As at 2023-01-01 |
As at 2023-01-01 |
As at 2023-01-01 |
As at 2023-01-01 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2022-01-01 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||||||||||||||||
| Property, plant and equipment |
348,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
399,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
414,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Investment property |
2,620,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
2,754,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
2,719,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Investments accounted for using equity method |
6,231,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
6,450,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
6,919,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Deferred tax assets |
146,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
131,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
31,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||||||||||||||||
| Cash and cash equivalents |
8,207,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
6,670,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
6,929,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Assets |
208,94 1
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
207,024,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
251,443,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||||||||||
| Equity attributable to owners of parent |
19,624,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
19,265,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
21,624,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Non-controlling interests |
79,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
72,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
244,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity |
21, 119
EUR
|
7 ,011
EUR
|
79,000,000
EUR
|
12,579,000,000
EUR
|
34,000,000
EUR
|
19,62 4
EUR
|
1,416,000,000
EUR
|
1,7 64
EUR
|
6 ,652
EUR
|
72,000,000
EUR
|
19,265,000,000
EUR
|
35,000,000
EUR
|
12,578,000,000
EUR
|
21, 101
EUR
|
21, 101
EUR
|
6,6 52
EUR
|
72,000,000
EUR
|
12,578,000,000
EUR
|
35,000,000
EUR
|
19,265,000,000
EUR
|
1, 7 64
EUR
|
1, 764
EUR
|
2 1,62 4
EUR
|
12,575,000,000
EUR
|
38,000,000
EUR
|
244,000,000
EUR
|
23 ,632
EUR
|
9,01 1
EUR
|
1,7 64
EUR
|
38,000,000
EUR
|
20,2 75
EUR
|
34,918,000,000
EUR
|
32,888,000,000
EUR
|
266,000,000
EUR
|
12,575,000,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||||||||||||||||
| Deferred tax liabilities |
559,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
624,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
781,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||||||||||||||||
| Liabilities included in disposal groups classified as held for sale | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,530,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Liabilities |
187 ,822
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
185,9 23
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
227 ,811
EUR
|
— | — | — | — | — | — | — | — |
| Equity and liabilities |
208,94 1
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
207,024,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
251,443,000,000
EUR
|
— | — | — | — | — | — | — | — |