Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
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 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 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 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 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||
| Equity |
3 448,9
EUR
|
— | — | — |
2,801,000,000
EUR
|
1,037,000,000
EUR
|
333,000,000
EUR
|
553,000,000
EUR
|
523,000,000
EUR
|
3 168,8
EUR
|
2 990,8
EUR
|
— | — | — |
343,000,000
EUR
|
— | — |
3 290,7
EUR
|
2 767,7
EUR
|
977,000,000
EUR
|
— |
2 990,1
EUR
|
— |
3,006,000,000
EUR
|
553,000,000
EUR
|
1,037,000,000
EUR
|
— |
2,673,000,000
EUR
|
2 381,1
EUR
|
2 467,5
EUR
|
503,000,000
EUR
|
196,000,000
EUR
|
480,000,000
EUR
|
1,037,000,000
EUR
|
2 734,8
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
3,683,000,000
EUR
|
521,000,000
EUR
|
3,162,000,000
EUR
|
— | — | — | — | — | — | — |
3,162,000,000
EUR
|
— |
538,000,000
EUR
|
— |
4,538,000,000
EUR
|
4,538,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
5,076,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other comprehensive income | — |
23,000,000
EUR
|
83,000,000
EUR
|
529,000,000
EUR
|
— | — | — | — | — | — | — |
106,000,000
EUR
|
423,000,000
EUR
|
181,000,000
EUR
|
— |
1,141,000,000
EUR
|
2,598,000,000
EUR
|
— | — | — |
1,457,000,000
EUR
|
— | — | — | — | — |
2,779,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Comprehensive income | — |
3,706,000,000
EUR
|
438,000,000
EUR
|
3,691,000,000
EUR
|
— | — | — | — | — | — | — |
3,268,000,000
EUR
|
423,000,000
EUR
|
719,000,000
EUR
|
— |
5,679,000,000
EUR
|
7,136,000,000
EUR
|
— | — | — |
1,457,000,000
EUR
|
— | — | — | — | — |
7,855,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Issue of equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
50,000,000
EUR
|
— | — | — | — | — |
50,000,000
EUR
|
— | — | — |
50,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
2,037,000,000
EUR
|
640,000,000
EUR
|
1,397,000,000
EUR
|
— | — | — | — | — | — | — |
1,397,000,000
EUR
|
— |
305,000,000
EUR
|
— |
1,210,000,000
EUR
|
1,210,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
1,515,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
318,000,000
EUR
|
16,000,000
EUR
|
271,000,000
EUR
|
— | — | — | — | — | — | — |
302,000,000
EUR
|
31,000,000
EUR
|
84,000,000
EUR
|
— |
348,000,000
EUR
|
348,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
432,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
292,000,000
EUR
|
13,000,000
EUR
|
279,000,000
EUR
|
— | — | — | — | — | — | — |
279,000,000
EUR
|
— |
3,000,000
EUR
|
— |
268,000,000
EUR
|
268,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
271,000,000
EUR
|
— | — | — | — | — | — | — | — |