Statement Of Changes In Equity [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 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 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||
| Equity | — | — |
15,000,000
EUR
|
6,478,000,000
EUR
|
— |
4,692,000,000
EUR
|
94,000,000
EUR
|
— |
1,456,000,000
EUR
|
— |
251,000,000
EUR
|
— |
94,000,000
EUR
|
— |
166,000,000
EUR
|
— | — |
4,021,000,000
EUR
|
30,000,000
EUR
|
5,688,000,000
EUR
|
1,437,000,000
EUR
|
— |
94,000,000
EUR
|
1,435,000,000
EUR
|
5,086,000,000
EUR
|
3,516,000,000
EUR
|
41,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||
| Profit (loss) |
1,147,000,000
EUR
|
49,000,000
EUR
|
— | — |
1,196,000,000
EUR
|
— | — | — | — |
1,147,000,000
EUR
|
— |
25,000,000
EUR
|
— |
1,064,000,000
EUR
|
— | — |
1,039,000,000
EUR
|
— | — | — | — |
1,039,000,000
EUR
|
— | — | — | — | — |
| Other comprehensive income |
86,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
124,000,000
EUR
|
— | — | — | — | — |
| Comprehensive income |
1,233,000,000
EUR
|
49,000,000
EUR
|
— | — |
1,282,000,000
EUR
|
— | — |
86,000,000
EUR
|
— |
1,147,000,000
EUR
|
— |
25,000,000
EUR
|
— |
1,189,000,000
EUR
|
— |
125,000,000
EUR
|
1,039,000,000
EUR
|
— | — | — | — |
1,163,000,000
EUR
|
— | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
34,000,000
EUR
|
— | — |
34,000,000
EUR
|
— | — | — | — | — | — |
55,000,000
EUR
|
— |
55,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — | — |
3,000,000
EUR
|
— | — | — | — |
3,000,000
EUR
|
— | — | — |
1,000,000
EUR
|
— | — |
1,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |