Statement Of Changes In Equity [Abstract]
| Concept |
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 |
2020-01-01 to 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 |
As at 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 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 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 |
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 |
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 |
2019-01-01 to 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 |
As at 2018-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
2 363
EUR
|
96,000,000
EUR
|
— | — |
493,000,000
EUR
|
1 230
EUR
|
— | — |
1 894
EUR
|
238,000,000
EUR
|
— | — |
10,000,000
EUR
|
37,000,000
EUR
|
675,000,000
EUR
|
950,000,000
EUR
|
141,000,000
EUR
|
— |
1 134
EUR
|
— | — |
33,000,000
EUR
|
— | — | — |
1 193
EUR
|
— | — |
150,000,000
EUR
|
9,000,000
EUR
|
391,000,000
EUR
|
— | — |
1 043
EUR
|
880,000,000
EUR
|
312,000,000
EUR
|
2 579
EUR
|
29,000,000
EUR
|
— | — |
127,000,000
EUR
|
48,000,000
EUR
|
— | — |
486,000,000
EUR
|
— | — | — |
424,000,000
EUR
|
770,000,000
EUR
|
1 561
EUR
|
22,000,000
EUR
|
110,000,000
EUR
|
254,000,000
EUR
|
1 451
EUR
|
17,000,000
EUR
|
111,000,000
EUR
|
479,000,000
EUR
|
2 743
EUR
|
3,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
266,000,000
EUR
|
— | — | — | — | — | — | — |
238,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
28,000,000
EUR
|
— |
-
EUR
|
238,000,000
EUR
|
— | — | — |
312,000,000
EUR
|
— | — | — | — |
34,000,000
EUR
|
— | — | — | — | — |
312,000,000
EUR
|
346,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
296,000,000
EUR
|
— | — |
1,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — |
4,000,000
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— |
284,000,000
EUR
|
15,000,000
EUR
|
— |
-
EUR
|
281,000,000
EUR
|
6,000,000
EUR
|
— |
33,000,000
EUR
|
39,000,000
EUR
|
— | — | — |
-
EUR
|
8,000,000
EUR
|
— | — | — | — | — |
-
EUR
|
31,000,000
EUR
|
— | — |
12,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
30,000,000
EUR
|
— | — |
1,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
238,000,000
EUR
|
— | — |
4,000,000
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— |
284,000,000
EUR
|
13,000,000
EUR
|
— |
-
EUR
|
43,000,000
EUR
|
6,000,000
EUR
|
— |
33,000,000
EUR
|
351,000,000
EUR
|
— | — | — |
-
EUR
|
26,000,000
EUR
|
— | — | — | — | — |
312,000,000
EUR
|
377,000,000
EUR
|
— | — |
12,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Issue of equity |
5,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— |
-
EUR
|
5,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — |
-
EUR
|
3,000,000
EUR
|
— | — | — | — | — |
-
EUR
|
3,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
191,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — |
170,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— |
-
EUR
|
21,000,000
EUR
|
— |
-
EUR
|
170,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
206,000,000
EUR
|
— | — | — |
206,000,000
EUR
|
25,000,000
EUR
|
— | — | — | — | — |
-
EUR
|
231,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
5,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — |
5,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— |
-
EUR
|
-
EUR
|
— |
-
EUR
|
5,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
55,000,000
EUR
|
— | — | — |
55,000,000
EUR
|
5,000,000
EUR
|
— | — | — | — | — |
-
EUR
|
60,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
11,000,000
EUR
|
— | — |
-
EUR
|
11,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— |
-
EUR
|
-
EUR
|
— |
-
EUR
|
11,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
26,000,000
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
26,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
26,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
14,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
14,000,000
EUR
|
— | — | — | — | — |
-
EUR
|
— |
-
EUR
|
-
EUR
|
— |
-
EUR
|
14,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
16,000,000
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
16,000,000
EUR
|
— | — |
-
EUR
|
16,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |