Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||
| Equity |
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
|
— | — |
9,582,000,000
EUR
|
2,338,000,000
EUR
|
1 758,5
EUR
|
2,640,000,000
EUR
|
239,000,000
EUR
|
1 284,7
EUR
|
2 716,7
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — |
4,245,000,000
EUR
|
977,000,000
EUR
|
3,268,000,000
EUR
|
— | — | — | — | — |
3,268,000,000
EUR
|
— |
505,000,000
EUR
|
— | — |
2,116,000,000
EUR
|
— | — |
2,116,000,000
EUR
|
— | — | — | — | — |
2,621,000,000
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income | — | — | — |
4,275,000,000
EUR
|
977,000,000
EUR
|
3,298,000,000
EUR
|
— | — | — | — | — |
3,298,000,000
EUR
|
— |
505,000,000
EUR
|
— | — |
2,148,000,000
EUR
|
— | — |
2,148,000,000
EUR
|
— | — | — | — | — |
2,653,000,000
EUR
|
— | — | — | — | — | — | — |
| Issue of equity | — | — |
13,000,000
EUR
|
94,000,000
EUR
|
1,000,000
EUR
|
0
EUR
|
— | — | — | — | — |
93,000,000
EUR
|
80,000,000
EUR
|
383,000,000
EUR
|
— | — |
4,329,000,000
EUR
|
— | — |
0
EUR
|
— | — |
461,000,000
EUR
|
— |
3,868,000,000
EUR
|
4,712,000,000
EUR
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — | — |
2,328,000,000
EUR
|
330,000,000
EUR
|
729,000,000
EUR
|
— | — | — | — | — |
1,998,000,000
EUR
|
1,269,000,000
EUR
|
254,000,000
EUR
|
— | — |
1,661,000,000
EUR
|
— | — |
594,000,000
EUR
|
— | — | — | — |
1,067,000,000
EUR
|
1,915,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — | — |
0
EUR
|
1,000,000
EUR
|
3,000,000
EUR
|
4,000,000
EUR
|
— | — | — | — | — |
4,000,000
EUR
|
— |
4,000,000
EUR
|
— | — |
18,000,000
EUR
|
— | — |
18,000,000
EUR
|
— | — |
0
EUR
|
— | — |
22,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — | — | — |
2,116,000,000
EUR
|
2,124,000,000
EUR
|
8,000,000
EUR
|
— | — | — | — | — |
8,000,000
EUR
|
— |
2,571,000,000
EUR
|
— | — |
26,000,000
EUR
|
— | — |
26,000,000
EUR
|
— | — | — | — | — |
2,596,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — |
188,000,000
EUR
|
0
EUR
|
188,000,000
EUR
|
— | — | — | — | — |
188,000,000
EUR
|
— |
0
EUR
|
— | — |
174,000,000
EUR
|
— | — |
174,000,000
EUR
|
— | — | — | — | — |
174,000,000
EUR
|
— | — | — | — | — | — | — |