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 |
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 |
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 |
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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||
| Equity |
3,065,000,000
EUR
|
— | — | — | — | — | — |
145,000,000
EUR
|
2,139,000,000
EUR
|
864,000,000
EUR
|
131,000,000
EUR
|
1,000,000
EUR
|
67,000,000
EUR
|
2,920,000,000
EUR
|
— |
20,000,000
EUR
|
— | — | — |
126,000,000
EUR
|
491,000,000
EUR
|
— | — | — |
2,597,000,000
EUR
|
— |
2,000,000
EUR
|
80,000,000
EUR
|
— |
2,459,000,000
EUR
|
— |
2,174,000,000
EUR
|
1,000,000
EUR
|
138,000,000
EUR
|
— | — |
387,000,000
EUR
|
124,000,000
EUR
|
17,000,000
EUR
|
2,196,000,000
EUR
|
1,000,000
EUR
|
74,000,000
EUR
|
337,000,000
EUR
|
2,201,000,000
EUR
|
2,321,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
–
EUR
|
–
EUR
|
532,000,000
EUR
|
523,000,000
EUR
|
9,000,000
EUR
|
–
EUR
|
— | — | — | — | — | — | — |
523,000,000
EUR
|
— |
–
EUR
|
–
EUR
|
9,000,000
EUR
|
— | — |
–
EUR
|
–
EUR
|
397,000,000
EUR
|
— |
–
EUR
|
— | — |
–
EUR
|
— |
–
EUR
|
— | — | — |
407,000,000
EUR
|
397,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
–
EUR
|
–
EUR
|
143,000,000
EUR
|
11,000,000
EUR
|
3,000,000
EUR
|
18,000,000
EUR
|
— | — | — | — | — | — | — |
140,000,000
EUR
|
— |
–
EUR
|
147,000,000
EUR
|
12,000,000
EUR
|
— | — |
20,000,000
EUR
|
–
EUR
|
253,000,000
EUR
|
— |
–
EUR
|
— | — |
257,000,000
EUR
|
— |
–
EUR
|
— | — | — |
265,000,000
EUR
|
16,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
–
EUR
|
–
EUR
|
675,000,000
EUR
|
534,000,000
EUR
|
12,000,000
EUR
|
18,000,000
EUR
|
— | — | — | — | — | — | — |
663,000,000
EUR
|
— |
–
EUR
|
147,000,000
EUR
|
22,000,000
EUR
|
— | — |
20,000,000
EUR
|
–
EUR
|
650,000,000
EUR
|
— |
–
EUR
|
— | — |
257,000,000
EUR
|
— |
–
EUR
|
— | — | — |
671,000,000
EUR
|
413,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
–
EUR
|
–
EUR
|
188,000,000
EUR
|
182,000,000
EUR
|
6,000,000
EUR
|
–
EUR
|
— | — | — | — | — | — | — |
182,000,000
EUR
|
— |
–
EUR
|
–
EUR
|
8,000,000
EUR
|
— | — |
–
EUR
|
–
EUR
|
343,000,000
EUR
|
— |
–
EUR
|
— | — |
–
EUR
|
— |
–
EUR
|
— | — | — |
351,000,000
EUR
|
343,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
–
EUR
|
–
EUR
|
5,000,000
EUR
|
5,000,000
EUR
|
–
EUR
|
–
EUR
|
— | — | — | — | — | — | — |
5,000,000
EUR
|
— |
–
EUR
|
–
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
–
EUR
|
–
EUR
|
23,000,000
EUR
|
–
EUR
|
–
EUR
|
–
EUR
|
— | — | — | — | — | — | — |
23,000,000
EUR
|
— |
23,000,000
EUR
|
–
EUR
|
–
EUR
|
— | — |
–
EUR
|
–
EUR
|
31,000,000
EUR
|
— |
31,000,000
EUR
|
— | — |
–
EUR
|
— |
–
EUR
|
— | — | — |
31,000,000
EUR
|
–
EUR
|
— | — | — | — | — | — | — | — | — |