Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 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 |
2023-01-01 to 2023-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 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 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
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 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
1 987,5
EUR
|
— |
6,341,000,000
EUR
|
— |
0
EUR
|
— |
1,311,000,000
EUR
|
— |
2,596,000,000
EUR
|
5,968,000,000
EUR
|
2,400,000,000
EUR
|
6,073,000,000
EUR
|
1 380,1
EUR
|
14,000,000
EUR
|
— |
2 310,3
EUR
|
— | — | — | — |
6,602,000,000
EUR
|
6,915,000,000
EUR
|
1,311,000,000
EUR
|
0
EUR
|
7,543,000,000
EUR
|
2,596,000,000
EUR
|
1,883,000,000
EUR
|
1 618,8
EUR
|
— |
19,000,000
EUR
|
— |
7,786,000,000
EUR
|
2,596,000,000
EUR
|
7,442,000,000
EUR
|
6,891,000,000
EUR
|
2 489,5
EUR
|
14,000,000
EUR
|
1 800,1
EUR
|
3,000,000
EUR
|
1,148,000,000
EUR
|
1,311,000,000
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
1,150,000,000
EUR
|
— |
1,150,000,000
EUR
|
— |
1,150,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
51,000,000
EUR
|
53,000,000
EUR
|
3,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
53,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
550,000,000
EUR
|
— |
550,000,000
EUR
|
— | — | — |
517,000,000
EUR
|
— | — | — | — | — | — | — | — |
34,000,000
EUR
|
— |
730,000,000
EUR
|
— |
0
EUR
|
5,000,000
EUR
|
— | — | — | — | — | — | — | — |
730,000,000
EUR
|
— |
735,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
1,700,000,000
EUR
|
— |
1,700,000,000
EUR
|
— |
1,150,000,000
EUR
|
— |
517,000,000
EUR
|
— | — | — | — | — | — | — | — |
34,000,000
EUR
|
— |
679,000,000
EUR
|
53,000,000
EUR
|
3,000,000
EUR
|
5,000,000
EUR
|
— | — | — | — | — | — | — | — |
676,000,000
EUR
|
— |
735,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Issue of equity |
209,000,000
EUR
|
— |
209,000,000
EUR
|
— | — | — | — | — |
209,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,000,000
EUR
|
1,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
1,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
3,000,000
EUR
|
— |
3,000,000
EUR
|
— |
3,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
24,000,000
EUR
|
24,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
24,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |