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 |
As at 2022-12-31 |
2022-01-01 to 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 |
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 |
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 |
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 |
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 |
2,254,000,000
EUR
|
— | — |
350,000,000
EUR
|
— | — |
3,000,000
EUR
|
— |
2,000,000
EUR
|
1,351,000,000
EUR
|
20,000,000
EUR
|
10,000,000
EUR
|
96,000,000
EUR
|
2,252,000,000
EUR
|
660,000,000
EUR
|
— | — | — |
24,000,000
EUR
|
1,076,000,000
EUR
|
2,000,000
EUR
|
350,000,000
EUR
|
— | — | — |
2,014,000,000
EUR
|
— |
660,000,000
EUR
|
2,011,000,000
EUR
|
3,000,000
EUR
|
60,000,000
EUR
|
10,000,000
EUR
|
— | — |
1,113,000,000
EUR
|
1,000,000
EUR
|
3,000,000
EUR
|
350,000,000
EUR
|
660,000,000
EUR
|
1,963,000,000
EUR
|
10,000,000
EUR
|
28,000,000
EUR
|
141,000,000
EUR
|
1,966,000,000
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — |
462,000,000
EUR
|
— |
462,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — |
462,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — | — |
250,000,000
EUR
|
— | — | — | — | — | — | — |
251,000,000
EUR
|
250,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Other comprehensive income | — | — |
7,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
75,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — | — |
469,000,000
EUR
|
— |
507,000,000
EUR
|
0
EUR
|
— |
1,000,000
EUR
|
— | — | — | — | — | — | — |
469,000,000
EUR
|
37,000,000
EUR
|
0
EUR
|
— | — | — | — | — |
0
EUR
|
325,000,000
EUR
|
— |
81,000,000
EUR
|
— | — | — | — | — |
325,000,000
EUR
|
244,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — |
232,000,000
EUR
|
— |
232,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — |
232,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — | — |
273,000,000
EUR
|
— | — | — | — | — | — | — |
273,000,000
EUR
|
273,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — |
4,000,000
EUR
|
— | — |
4,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
4,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — |
22,000,000
EUR
|
— |
22,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
22,000,000
EUR
|
— | — | — | — | — | — | — | — |
15,000,000
EUR
|
— | — | — | — | — | — | — |
15,000,000
EUR
|
15,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |