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 |
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 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 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 |
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 |
As at 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 |
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 |
2 310,3
EUR
|
— | — | — | — |
6,602,000,000
EUR
|
6,915,000,000
EUR
|
0
EUR
|
1,311,000,000
EUR
|
7,543,000,000
EUR
|
2,596,000,000
EUR
|
1,883,000,000
EUR
|
1 618,8
EUR
|
— |
19,000,000
EUR
|
— | — |
7,786,000,000
EUR
|
— | — |
6,891,000,000
EUR
|
2 489,5
EUR
|
14,000,000
EUR
|
7,442,000,000
EUR
|
1,148,000,000
EUR
|
— |
1 800,1
EUR
|
3,000,000
EUR
|
1,311,000,000
EUR
|
2,596,000,000
EUR
|
— | — |
7,554,000,000
EUR
|
2,000,000
EUR
|
2,000,000
EUR
|
1 818,6
EUR
|
2,596,000,000
EUR
|
8,232,000,000
EUR
|
3,472,000,000
EUR
|
1,509,000,000
EUR
|
1,311,000,000
EUR
|
2 166,0
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
51,000,000
EUR
|
53,000,000
EUR
|
3,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
53,000,000
EUR
|
— | — |
0
EUR
|
— | — |
1,210,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
1,210,000,000
EUR
|
1,210,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
730,000,000
EUR
|
— |
0
EUR
|
5,000,000
EUR
|
— | — | — | — | — | — | — | — |
730,000,000
EUR
|
— |
735,000,000
EUR
|
0
EUR
|
— |
12,000,000
EUR
|
373,000,000
EUR
|
— | — | — | — | — |
360,000,000
EUR
|
— | — | — | — |
373,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
679,000,000
EUR
|
53,000,000
EUR
|
3,000,000
EUR
|
5,000,000
EUR
|
— | — | — | — | — | — | — | — |
676,000,000
EUR
|
— |
735,000,000
EUR
|
0
EUR
|
— |
12,000,000
EUR
|
1,582,000,000
EUR
|
— | — | — | — | — |
360,000,000
EUR
|
— | — | — | — |
1,583,000,000
EUR
|
1,210,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
1,000,000
EUR
|
1,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
1,000,000
EUR
|
— | — | — | — | — |
2,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
2,000,000
EUR
|
2,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
24,000,000
EUR
|
24,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
24,000,000
EUR
|
— | — | — | — | — |
4,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
4,000,000
EUR
|
4,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |