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 |
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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||
| Equity | — |
5 033
EUR
|
— |
5 396
EUR
|
— | — |
184,000,000
EUR
|
1 481
EUR
|
159,000,000
EUR
|
4 849
EUR
|
1 093
EUR
|
— |
3 861
EUR
|
— | — | — | — |
1 609
EUR
|
1 481
EUR
|
5 039
EUR
|
1 209
EUR
|
159,000,000
EUR
|
1 178
EUR
|
— | — | — |
1 045
EUR
|
3 814
EUR
|
1 681
EUR
|
1 086
EUR
|
1 482
EUR
|
4 900
EUR
|
158,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||
| Profit (loss) |
8 499
EUR
|
— |
3 933
EUR
|
— |
4 566
EUR
|
3 933
EUR
|
— | — | — | — | — | — | — | — |
412,000,000
EUR
|
254,000,000
EUR
|
158,000,000
EUR
|
— | — | — | — | — | — | — |
254,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other comprehensive income |
537,000,000
EUR
|
— |
241,000,000
EUR
|
— |
296,000,000
EUR
|
— | — | — | — | — | — |
241,000,000
EUR
|
— | — |
206,000,000
EUR
|
— |
168,000,000
EUR
|
— | — | — | — | — | — |
38,000,000
EUR
|
38,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Comprehensive income |
7 962
EUR
|
— |
3 692
EUR
|
— |
4 270
EUR
|
3 933
EUR
|
— | — | — | — | — |
241,000,000
EUR
|
— | — |
206,000,000
EUR
|
254,000,000
EUR
|
10,000,000
EUR
|
— | — | — | — | — | — |
38,000,000
EUR
|
216,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Issue of equity |
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — | — | — |
1,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — | — |
-
EUR
|
1,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
44,000,000
EUR
|
— |
74,000,000
EUR
|
— |
30,000,000
EUR
|
56,000,000
EUR
|
— | — | — | — | — |
18,000,000
EUR
|
— | — |
75,000,000
EUR
|
9,000,000
EUR
|
60,000,000
EUR
|
— | — | — | — | — | — |
6,000,000
EUR
|
15,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
2,000,000
EUR
|
— |
1,000,000
EUR
|
— |
1,000,000
EUR
|
1,000,000
EUR
|
— | — | — | — | — | — | — | — |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — | — |
-
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
25,000,000
EUR
|
— |
52,000,000
EUR
|
— |
77,000,000
EUR
|
309,000,000
EUR
|
— | — | — | — | — |
257,000,000
EUR
|
— | — |
349,000,000
EUR
|
69,000,000
EUR
|
252,000,000
EUR
|
— | — | — | — | — | — |
28,000,000
EUR
|
97,000,000
EUR
|
— | — | — | — | — | — | — | — |