Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
2023-01-01 to 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 |
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 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 |
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 | — | — |
3 219,6
EUR
|
— | — |
1 472,1
EUR
|
— |
3,169,000,000
EUR
|
149,000,000
EUR
|
1 747,5
EUR
|
— |
4,204,000,000
EUR
|
1 025,2
EUR
|
— |
1 699,3
EUR
|
3 959,5
EUR
|
— | — | — | — | — |
1 584,4
EUR
|
305,000,000
EUR
|
3,114,000,000
EUR
|
2 375,2
EUR
|
3,950,000,000
EUR
|
— | — |
338,000,000
EUR
|
5,139,000,000
EUR
|
3 543,6
EUR
|
1 446,0
EUR
|
2 236,2
EUR
|
1 307,4
EUR
|
3,101,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) |
-
EUR
|
5,086,000,000
EUR
|
— |
4,729,000,000
EUR
|
357,000,000
EUR
|
— |
-
EUR
|
— | — | — |
-
EUR
|
— | — |
4,729,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
4,245,000,000
EUR
|
977,000,000
EUR
|
3,268,000,000
EUR
|
— | — | — | — | — |
3,268,000,000
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income |
-
EUR
|
5,075,000,000
EUR
|
— |
4,720,000,000
EUR
|
357,000,000
EUR
|
— |
-
EUR
|
— | — | — |
-
EUR
|
— | — |
4,720,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
4,275,000,000
EUR
|
977,000,000
EUR
|
3,298,000,000
EUR
|
— | — | — | — | — |
3,298,000,000
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
-
EUR
|
2,813,000,000
EUR
|
— |
2,060,000,000
EUR
|
753,000,000
EUR
|
— |
-
EUR
|
— | — | — |
33,000,000
EUR
|
— | — |
2,027,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
2,328,000,000
EUR
|
330,000,000
EUR
|
729,000,000
EUR
|
— | — | — | — | — |
1,998,000,000
EUR
|
1,269,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
-
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
— |
-
EUR
|
— | — | — |
-
EUR
|
— | — |
0
EUR
|
— | — |
-
EUR
|
0
EUR
|
1,000,000
EUR
|
3,000,000
EUR
|
4,000,000
EUR
|
— | — | — | — | — |
4,000,000
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
— |
-
EUR
|
— | — | — |
-
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
2,116,000,000
EUR
|
2,124,000,000
EUR
|
8,000,000
EUR
|
— | — | — | — | — |
8,000,000
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
-
EUR
|
160,000,000
EUR
|
— |
160,000,000
EUR
|
0
EUR
|
— |
-
EUR
|
— | — | — |
-
EUR
|
— | — |
160,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
188,000,000
EUR
|
0
EUR
|
188,000,000
EUR
|
— | — | — | — | — |
188,000,000
EUR
|
-
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) in equity |
-
EUR
|
343,000,000
EUR
|
— |
343,000,000
EUR
|
1,000,000
EUR
|
— |
55,000,000
EUR
|
— | — | — |
287,000,000
EUR
|
— | — |
0
EUR
|
— | — |
-
EUR
|
13,000,000
EUR
|
94,000,000
EUR
|
1,000,000
EUR
|
0
EUR
|
— | — | — | — | — |
93,000,000
EUR
|
80,000,000
EUR
|
— | — | — | — | — | — | — |