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 |
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 |
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 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 | — |
1 993,8
EUR
|
— | — | — |
577,000,000
EUR
|
— |
2,178,000,000
EUR
|
2 121,4
EUR
|
— | — |
545,000,000
EUR
|
3,999,000,000
EUR
|
1 936,1
EUR
|
1 928,0
EUR
|
— | — | — | — |
2,122,000,000
EUR
|
1 966,2
EUR
|
659,000,000
EUR
|
543,000,000
EUR
|
3,047,000,000
EUR
|
1 862,1
EUR
|
— | — | — |
1 707,1
EUR
|
1 714,7
EUR
|
1 638,5
EUR
|
2,552,000,000
EUR
|
3,171,000,000
EUR
|
543,000,000
EUR
|
686,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) |
5,159,000,000
EUR
|
— |
5,037,000,000
EUR
|
122,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— | — |
5,159,000,000
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
4,846,000,000
EUR
|
179,000,000
EUR
|
4,846,000,000
EUR
|
— | — | — | — | — | — |
4,667,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Other comprehensive income |
1,026,000,000
EUR
|
— |
1,044,000,000
EUR
|
18,000,000
EUR
|
-
EUR
|
— |
952,000,000
EUR
|
— | — |
74,000,000
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
335,000,000
EUR
|
46,000,000
EUR
|
211,000,000
EUR
|
— | — | — | — | — | — |
381,000,000
EUR
|
-
EUR
|
124,000,000
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income |
4,133,000,000
EUR
|
— |
3,993,000,000
EUR
|
140,000,000
EUR
|
-
EUR
|
— |
952,000,000
EUR
|
— | — |
5,085,000,000
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
5,181,000,000
EUR
|
133,000,000
EUR
|
5,057,000,000
EUR
|
— | — | — | — | — | — |
5,048,000,000
EUR
|
-
EUR
|
124,000,000
EUR
|
— | — | — | — | — | — | — |
| Issue of equity |
57,000,000
EUR
|
— |
57,000,000
EUR
|
-
EUR
|
56,000,000
EUR
|
— |
-
EUR
|
— | — |
1,000,000
EUR
|
2,000,000
EUR
|
— | — | — | — |
1,000,000
EUR
|
66,000,000
EUR
|
-
EUR
|
1,000,000
EUR
|
— | — | — | — | — | — |
66,000,000
EUR
|
66,000,000
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
3,721,000,000
EUR
|
— |
3,492,000,000
EUR
|
229,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— | — |
3,721,000,000
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
2,578,000,000
EUR
|
183,000,000
EUR
|
2,578,000,000
EUR
|
— | — | — | — | — | — |
2,395,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
45,000,000
EUR
|
— |
52,000,000
EUR
|
7,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— | — |
45,000,000
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
191,000,000
EUR
|
20,000,000
EUR
|
191,000,000
EUR
|
— | — | — | — | — | — |
171,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
20,000,000
EUR
|
— |
20,000,000
EUR
|
-
EUR
|
-
EUR
|
— |
-
EUR
|
— | — |
20,000,000
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
6,000,000
EUR
|
-
EUR
|
6,000,000
EUR
|
— | — | — | — | — | — |
6,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
5,000,000
EUR
|
— |
5,000,000
EUR
|
-
EUR
|
-
EUR
|
— |
-
EUR
|
— | — |
5,000,000
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
60,000,000
EUR
|
-
EUR
|
60,000,000
EUR
|
— | — | — | — | — | — |
60,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
259,000,000
EUR
|
— |
259,000,000
EUR
|
-
EUR
|
-
EUR
|
— |
-
EUR
|
— | — |
259,000,000
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
251,000,000
EUR
|
-
EUR
|
251,000,000
EUR
|
— | — | — | — | — | — |
251,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — |