Statement Of Changes In Equity [Abstract]
| Concept |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
579,000,000
EUR
|
-
EUR
|
173,000,000
EUR
|
— |
2,000,000
EUR
|
500,000,000
EUR
|
— | — |
-
EUR
|
456,000,000
EUR
|
61,000,000
EUR
|
643,000,000
EUR
|
— | — |
173,000,000
EUR
|
— | — | — | — | — | — | — |
-
EUR
|
114,000,000
EUR
|
36,000,000
EUR
|
339,000,000
EUR
|
— | — |
36,000,000
EUR
|
-
EUR
|
— |
426,000,000
EUR
|
500,000,000
EUR
|
— |
-
EUR
|
414,000,000
EUR
|
— | — | — |
75,000,000
EUR
|
372,000,000
EUR
|
-
EUR
|
271,000,000
EUR
|
158,000,000
EUR
|
500,000,000
EUR
|
1,000,000
EUR
|
272,000,000
EUR
|
414,000,000
EUR
|
38,000,000
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
207,000,000
EUR
|
— | — | — |
-
EUR
|
— | — |
207,000,000
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
207,000,000
EUR
|
-
EUR
|
-
EUR
|
230,000,000
EUR
|
— | — | — | — |
230,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — |
230,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
138,000,000
EUR
|
— | — | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — | — |
21,000,000
EUR
|
-
EUR
|
— |
117,000,000
EUR
|
-
EUR
|
-
EUR
|
138,000,000
EUR
|
41,000,000
EUR
|
33,000,000
EUR
|
8,000,000
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — |
8,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
345,000,000
EUR
|
— | — | — |
-
EUR
|
— | — |
207,000,000
EUR
|
-
EUR
|
— | — | — | — |
21,000,000
EUR
|
-
EUR
|
— |
117,000,000
EUR
|
-
EUR
|
-
EUR
|
345,000,000
EUR
|
41,000,000
EUR
|
33,000,000
EUR
|
238,000,000
EUR
|
— | — | — | — |
230,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — |
238,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Issue of equity |
47,000,000
EUR
|
— | — | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
2,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
45,000,000
EUR
|
47,000,000
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
-
EUR
|
— | — | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
-
EUR
|
— | — | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
1,000,000
EUR
|
— | — | — | — |
157,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — |
1,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
158,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
-
EUR
|
— | — | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
2,000,000
EUR
|
-
EUR
|
2,000,000
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — |
2,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |