Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
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 |
As at 2020-12-31 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
7,000,000
EUR
|
1,413,000,000
EUR
|
782,000,000
EUR
|
— | — | — | — |
5,621,000,000
EUR
|
— | — |
5,176,000,000
EUR
|
153,000,000
EUR
|
4,587,000,000
EUR
|
— |
492,000,000
EUR
|
304,000,000
EUR
|
445,000,000
EUR
|
— | — | — |
509,000,000
EUR
|
355,000,000
EUR
|
— |
301,000,000
EUR
|
4,480,000,000
EUR
|
— | — |
4,000,000
EUR
|
551,000,000
EUR
|
451,000,000
EUR
|
4,587,000,000
EUR
|
— | — |
4,835,000,000
EUR
|
— | — | — | — |
89,000,000
EUR
|
3,174,000,000
EUR
|
423,000,000
EUR
|
381,000,000
EUR
|
202,000,000
EUR
|
3,197,000,000
EUR
|
3,597,000,000
EUR
|
250,000,000
EUR
|
43,000,000
EUR
|
4,000,000
EUR
|
271,000,000
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
48,000,000
EUR
|
— | — | — |
–
EUR
|
–
EUR
|
–
EUR
|
1,018,000,000
EUR
|
— |
–
EUR
|
–
EUR
|
— | — | — |
–
EUR
|
— | — | — |
1,066,000,000
EUR
|
1,018,000,000
EUR
|
273,000,000
EUR
|
— | — |
–
EUR
|
— | — |
258,000,000
EUR
|
–
EUR
|
— | — | — | — |
–
EUR
|
–
EUR
|
— |
–
EUR
|
15,000,000
EUR
|
–
EUR
|
258,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
27,000,000
EUR
|
— | — | — |
–
EUR
|
–
EUR
|
–
EUR
|
59,000,000
EUR
|
— |
–
EUR
|
59,000,000
EUR
|
— | — | — |
–
EUR
|
— | — | — |
86,000,000
EUR
|
–
EUR
|
401,000,000
EUR
|
— | — |
–
EUR
|
— | — |
–
EUR
|
1,000,000
EUR
|
— | — | — | — |
–
EUR
|
–
EUR
|
— |
349,000,000
EUR
|
51,000,000
EUR
|
–
EUR
|
350,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
75,000,000
EUR
|
— | — | — |
–
EUR
|
–
EUR
|
–
EUR
|
1,077,000,000
EUR
|
— |
–
EUR
|
59,000,000
EUR
|
— | — | — |
–
EUR
|
— | — | — |
1,152,000,000
EUR
|
1,018,000,000
EUR
|
128,000,000
EUR
|
— | — |
–
EUR
|
— | — |
258,000,000
EUR
|
1,000,000
EUR
|
— | — | — | — |
–
EUR
|
–
EUR
|
— |
349,000,000
EUR
|
36,000,000
EUR
|
–
EUR
|
92,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Issue of equity |
–
EUR
|
— | — | — |
–
EUR
|
–
EUR
|
–
EUR
|
3,000,000
EUR
|
— |
–
EUR
|
–
EUR
|
— | — | — |
3,000,000
EUR
|
— | — | — |
3,000,000
EUR
|
–
EUR
|
1,430,000,000
EUR
|
— | — |
–
EUR
|
— | — |
–
EUR
|
–
EUR
|
— | — | — | — |
–
EUR
|
30,000,000
EUR
|
— |
–
EUR
|
–
EUR
|
1,400,000,000
EUR
|
1,430,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
–
EUR
|
— | — | — |
–
EUR
|
–
EUR
|
–
EUR
|
104,000,000
EUR
|
— |
–
EUR
|
–
EUR
|
— | — | — |
–
EUR
|
— | — | — |
104,000,000
EUR
|
104,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
37,000,000
EUR
|
— | — | — |
–
EUR
|
–
EUR
|
331,000,000
EUR
|
331,000,000
EUR
|
— |
–
EUR
|
–
EUR
|
— | — | — |
–
EUR
|
— | — | — |
368,000,000
EUR
|
–
EUR
|
99,000,000
EUR
|
— | — |
–
EUR
|
— | — |
–
EUR
|
–
EUR
|
— | — | — | — |
70,000,000
EUR
|
–
EUR
|
— |
–
EUR
|
29,000,000
EUR
|
–
EUR
|
70,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
4,000,000
EUR
|
— | — | — |
–
EUR
|
–
EUR
|
–
EUR
|
10,000,000
EUR
|
— |
–
EUR
|
–
EUR
|
— | — | — |
–
EUR
|
— | — | — |
14,000,000
EUR
|
10,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
–
EUR
|
— | — | — |
–
EUR
|
64,000,000
EUR
|
–
EUR
|
64,000,000
EUR
|
— |
–
EUR
|
–
EUR
|
— | — | — |
–
EUR
|
— | — | — |
64,000,000
EUR
|
–
EUR
|
47,000,000
EUR
|
— | — |
–
EUR
|
— | — |
–
EUR
|
47,000,000
EUR
|
— | — | — | — |
–
EUR
|
–
EUR
|
— |
–
EUR
|
–
EUR
|
–
EUR
|
47,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |