Statement Of Financial Position [Abstract]
| Concept |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
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 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
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 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — | — | — |
676,000,000
EUR
|
— | — |
732,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investment property | — | — | — | — | — | — | — | — |
3,364,000,000
EUR
|
— | — |
3,051,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reinsurance contracts held that are assets | — | — | — | — | — | — | — | — |
485,000,000
EUR
|
— | — |
501,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — | — | — | — | — | — |
457,000,000
EUR
|
— | — |
426,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — | — | — |
101,000,000
EUR
|
— | — |
636,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — | — | — |
4,194,000,000
EUR
|
— | — |
7,910,000,000
EUR
|
— | — | — | — | — | — | — | — |
2,246,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — | — | — |
138,595,000,000
EUR
|
— | — |
150,768,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — | — | — |
34,000,000
EUR
|
— | — |
34,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — | — | — |
4,528,000,000
EUR
|
— | — |
4,147,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — | — | — |
4,070,000,000
EUR
|
— | — |
4,070,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — | — | — | — | — | — |
109,000,000
EUR
|
— | — |
7,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — | — | — |
8,779,000,000
EUR
|
— | — |
8,339,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — | — | — |
47,000,000
EUR
|
— | — |
35,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
4,528,000,000
EUR
|
4,070,000,000
EUR
|
34,000,000
EUR
|
47,000,000
EUR
|
109,000,000
EUR
|
8,779,000,000
EUR
|
432,000,000
EUR
|
1,007,000,000
EUR
|
9,833,000,000
EUR
|
175,000,000
EUR
|
288,000,000
EUR
|
9,377,000,000
EUR
|
4,147,000,000
EUR
|
35,000,000
EUR
|
4,070,000,000
EUR
|
34,000,000
EUR
|
7,000,000
EUR
|
8,339,000,000
EUR
|
383,000,000
EUR
|
1,004,000,000
EUR
|
6,177,000,000
EUR
|
168,000,000
EUR
|
27,000,000
EUR
|
1,533,000,000
EUR
|
3,569,000,000
EUR
|
79,000,000
EUR
|
24,000,000
EUR
|
5,146,000,000
EUR
|
266,000,000
EUR
|
1,004,000,000
EUR
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||
| Provisions [abstract] | ||||||||||||||||||||||||||||||
| Provisions | — | — | — | — | — | — | — | — |
413,000,000
EUR
|
— | — |
414,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — | — | — |
128,762,000,000
EUR
|
— | — |
141,391,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — | — | — |
138,595,000,000
EUR
|
— | — |
150,768,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |