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 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 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 |
2023-01-01 to 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||
| Equity | — | — | — | — |
1,037,000,000
EUR
|
— |
553,000,000
EUR
|
2,642,000,000
EUR
|
27,000,000
EUR
|
719,000,000
EUR
|
— |
3 276,1
EUR
|
— |
3 186,3
EUR
|
— |
3 540,3
EUR
|
— | — |
3 460,7
EUR
|
— | — | — |
2,623,000,000
EUR
|
— |
1,037,000,000
EUR
|
— |
553,000,000
EUR
|
363,000,000
EUR
|
277,000,000
EUR
|
3 198,4
EUR
|
3 103,4
EUR
|
— |
3 448,9
EUR
|
2,801,000,000
EUR
|
1,037,000,000
EUR
|
333,000,000
EUR
|
553,000,000
EUR
|
523,000,000
EUR
|
3 168,8
EUR
|
2 990,8
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
0
EUR
|
2,320,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — | — |
507,000,000
EUR
|
— |
2,827,000,000
EUR
|
— |
2,320,000,000
EUR
|
— |
4,394,000,000
EUR
|
0
EUR
|
— |
3,862,000,000
EUR
|
532,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — | — | — | — |
3,862,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other comprehensive income |
0
EUR
|
199,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
376,000,000
EUR
|
— | — | — | — |
17,000,000
EUR
|
— |
182,000,000
EUR
|
— |
177,000,000
EUR
|
— |
1,654,000,000
EUR
|
0
EUR
|
— |
1,504,000,000
EUR
|
150,000,000
EUR
|
0
EUR
|
— |
892,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — |
612,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Comprehensive income |
0
EUR
|
2,519,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
376,000,000
EUR
|
— | — | — | — |
490,000,000
EUR
|
— |
3,009,000,000
EUR
|
— |
2,143,000,000
EUR
|
— |
2,740,000,000
EUR
|
0
EUR
|
— |
2,358,000,000
EUR
|
382,000,000
EUR
|
0
EUR
|
— |
892,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — |
3,250,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Issue of equity |
0
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — | — |
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — | — | — | — |
0
EUR
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
0
EUR
|
1,480,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — | — |
466,000,000
EUR
|
— |
1,946,000,000
EUR
|
— |
1,480,000,000
EUR
|
— |
1,959,000,000
EUR
|
0
EUR
|
— |
1,398,000,000
EUR
|
561,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — | — | — | — |
1,398,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
0
EUR
|
68,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
14,000,000
EUR
|
— | — | — | — |
9,000,000
EUR
|
— |
59,000,000
EUR
|
— |
54,000,000
EUR
|
— |
650,000,000
EUR
|
0
EUR
|
— |
640,000,000
EUR
|
10,000,000
EUR
|
0
EUR
|
— |
6,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — |
646,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
0
EUR
|
271,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — | — |
4,000,000
EUR
|
— |
275,000,000
EUR
|
— |
271,000,000
EUR
|
— |
254,000,000
EUR
|
0
EUR
|
— |
243,000,000
EUR
|
11,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — | — | — | — |
243,000,000
EUR
|
— | — | — | — | — | — | — | — |