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 |
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 |
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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||
| Equity |
4 855
EUR
|
— | — | — | — | — |
183,000,000
EUR
|
543,000,000
EUR
|
830,000,000
EUR
|
3 408
EUR
|
40,000,000
EUR
|
297,000,000
EUR
|
4 025
EUR
|
— | — | — | — |
1,000,000
EUR
|
2 936
EUR
|
— | — |
4 176
EUR
|
— | — |
259,000,000
EUR
|
3 516
EUR
|
543,000,000
EUR
|
— |
660,000,000
EUR
|
297,000,000
EUR
|
— | — |
3 164
EUR
|
561,000,000
EUR
|
3 652
EUR
|
297,000,000
EUR
|
349,000,000
EUR
|
3,000,000
EUR
|
543,000,000
EUR
|
4 213
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — |
591,000,000
EUR
|
516,000,000
EUR
|
75,000,000
EUR
|
— | — | — | — | — | — | — | — |
516,000,000
EUR
|
— | — | — | — | — |
248,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
248,000,000
EUR
|
248,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other comprehensive income | — | — | — |
103,000,000
EUR
|
— |
72,000,000
EUR
|
— | — | — | — | — | — | — |
31,000,000
EUR
|
31,000,000
EUR
|
— |
96,000,000
EUR
|
— | — | — |
120,000,000
EUR
|
— |
120,000,000
EUR
|
— | — | — | — | — | — | — |
216,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
-
EUR
|
-
EUR
|
694,000,000
EUR
|
516,000,000
EUR
|
147,000,000
EUR
|
— | — | — | — | — | — | — |
31,000,000
EUR
|
547,000,000
EUR
|
-
EUR
|
96,000,000
EUR
|
— | — |
-
EUR
|
128,000,000
EUR
|
— |
120,000,000
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
— | — |
32,000,000
EUR
|
248,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — | — |
11,000,000
EUR
|
— |
11,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
4,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
4,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,000,000
EUR
|
— | — | — |
8,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
8,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — |
39,000,000
EUR
|
— |
39,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
39,000,000
EUR
|
— | — | — | — |
2,000,000
EUR
|
2,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
2,000,000
EUR
|
— | — | — | — | — | — | — | — | — |