Statement Of Changes In Equity [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||
| Increase (decrease) through change in equity of subsidiaries, equity |
358,000,000
EUR
|
355,000,000
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
3,000,000
EUR
|
3,000,000
EUR
|
–
EUR
|
–
EUR
|
13,000,000
EUR
|
–
EUR
|
14,000,000
EUR
|
1,000,000
EUR
|
1,000,000
EUR
|
| Increase (decrease) through transactions with owners, equity |
475,000,000
EUR
|
1,094,000,000
EUR
|
177,000,000
EUR
|
142,000,000
EUR
|
897,000,000
EUR
|
619,000,000
EUR
|
42,000,000
EUR
|
55,000,000
EUR
|
254,000,000
EUR
|
2,310,000,000
EUR
|
156,000,000
EUR
|
752,000,000
EUR
|
1,558,000,000
EUR
|
2,023,000,000
EUR
|
| Purchase of treasury shares | — |
10,000,000
EUR
|
— | — | — | — | — | — | — |
55,000,000
EUR
|
— | — | — | — |
| Cancellation of treasury shares |
–
EUR
|
29,000,000
EUR
|
–
EUR
|
142,000,000
EUR
|
–
EUR
|
29,000,000
EUR
|
113,000,000
EUR
|
–
EUR
|
–
EUR
|
1,000,000
EUR
|
156,000,000
EUR
|
–
EUR
|
1,000,000
EUR
|
157,000,000
EUR
|