Statement Of Financial Position [Abstract]
| Concept |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||||||||
| Property, plant and equipment | — |
55,114,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
49,948,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Investment property | — |
245,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
213,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — |
552,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
428,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — |
3,007,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,294,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — |
17,417,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
27,671,000,000
EUR
|
— | — | — | — | — | — | — |
23,516,000,000
EUR
|
— | — | — | — | — |
| Assets | — |
1,217,570
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,191,980
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||||||||
| Issued capital | — |
2,197,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,192,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — |
29,566,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
20,441,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — |
40,017,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
29,672,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — |
5,778,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,979,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
17,142,000,000
EUR
|
45,795,000,000
EUR
|
5,778,000,000
EUR
|
0
EUR
|
1,064,000,000
EUR
|
0
EUR
|
2,197,000,000
EUR
|
29,566,000,000
EUR
|
40,017,000,000
EUR
|
32,000,000
EUR
|
7,792,000,000
EUR
|
1,177,000,000
EUR
|
29,672,000,000
EUR
|
15,801,000,000
EUR
|
20,441,000,000
EUR
|
0
EUR
|
1,043,000,000
EUR
|
2,979,000,000
EUR
|
2,192,000,000
EUR
|
32,651,000,000
EUR
|
263,000,000
EUR
|
9,159,000,000
EUR
|
1,177,000,000
EUR
|
17,098,000,000
EUR
|
8,520,000,000
EUR
|
435,000,000
EUR
|
910,000,000
EUR
|
19,818,000,000
EUR
|
1,990,000,000
EUR
|
484,000,000
EUR
|
2,720,000,000
EUR
|
15,765,000,000
EUR
|
9,492,000,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Deferred tax liabilities | — |
1,497,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,430,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — |
1,217,570
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,191,980
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |