Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
As at 2023-12-31 |
2023-01-01 to 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 |
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 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 |
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 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 | — | — | — |
32 040
EUR
|
4 702
EUR
|
— | — | — |
3 928
EUR
|
— |
13 407
EUR
|
— |
1 473
EUR
|
91,000,000
EUR
|
1 419
EUR
|
28 113
EUR
|
382,000,000
EUR
|
10 422
EUR
|
— | — |
29 409
EUR
|
— | — | — |
4 259
EUR
|
— |
9 872
EUR
|
— |
56,000,000
EUR
|
12 719
EUR
|
3 470
EUR
|
2 088
EUR
|
1 473
EUR
|
240,000,000
EUR
|
25 939
EUR
|
— | — | — | — | — |
9 956
EUR
|
2 597
EUR
|
1 973
EUR
|
24 771
EUR
|
12 242
EUR
|
1 481
EUR
|
22 881
EUR
|
1 889
EUR
|
304,000,000
EUR
|
1 117
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
-
EUR
|
5 102
EUR
|
4 702
EUR
|
— | — |
4 702
EUR
|
400,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
4 417
EUR
|
— |
157,000,000
EUR
|
— |
-
EUR
|
— | — | — | — | — | — | — |
-
EUR
|
4 259
EUR
|
4 259
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
12,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 061
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
-
EUR
|
5 090
EUR
|
4 702
EUR
|
— | — |
4 526
EUR
|
564,000,000
EUR
|
-
EUR
|
— |
152,000,000
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
328,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
5 478
EUR
|
— |
117,000,000
EUR
|
— |
-
EUR
|
— | — | — | — | — | — | — |
1 039
EUR
|
4 259
EUR
|
5 361
EUR
|
-
EUR
|
63,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Issue of equity |
-
EUR
|
712,000,000
EUR
|
-
EUR
|
— | — |
709,000,000
EUR
|
3,000,000
EUR
|
688,000,000
EUR
|
— |
-
EUR
|
— |
21,000,000
EUR
|
— | — | — | — | — | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
14,000,000
EUR
|
491,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — | — |
-
EUR
|
-
EUR
|
491,000,000
EUR
|
477,000,000
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
-
EUR
|
556,000,000
EUR
|
-
EUR
|
— | — |
647,000,000
EUR
|
91,000,000
EUR
|
-
EUR
|
— |
1,000,000
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
1,000,000
EUR
|
648,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
104,000,000
EUR
|
— |
6,000,000
EUR
|
— |
120,000,000
EUR
|
— | — | — | — | — | — | — |
22,000,000
EUR
|
-
EUR
|
98,000,000
EUR
|
-
EUR
|
1,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
166,000,000
EUR
|
397,000,000
EUR
|
-
EUR
|
— | — |
397,000,000
EUR
|
-
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
231,000,000
EUR
|
— |
899,000,000
EUR
|
-
EUR
|
1 100
EUR
|
— |
-
EUR
|
— |
201,000,000
EUR
|
— | — | — | — | — | — | — |
-
EUR
|
-
EUR
|
1 100
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
-
EUR
|
3,000,000
EUR
|
-
EUR
|
— | — |
1,000,000
EUR
|
2,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
1,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
50,000,000
EUR
|
— |
19,000,000
EUR
|
— |
32,000,000
EUR
|
— | — | — | — | — | — | — |
-
EUR
|
-
EUR
|
32,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
-
EUR
|
265,000,000
EUR
|
-
EUR
|
— | — |
265,000,000
EUR
|
-
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
265,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
265,000,000
EUR
|
— |
-
EUR
|
— |
265,000,000
EUR
|
— | — | — | — | — | — | — |
-
EUR
|
-
EUR
|
265,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |