Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
2021-01-01 to 2021-12-31 |
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 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||
| Profit (loss) |
2,000,000
EUR
|
— |
3,436,000,000
EUR
|
3,435,000,000
EUR
|
3,436,000,000
EUR
|
3,280,000,000
EUR
|
3,281,000,000
EUR
|
1,000,000
EUR
|
3,280,000,000
EUR
|
— |
| Other comprehensive income [abstract] | ||||||||||
| Other comprehensive income |
1,000,000
EUR
|
19,000,000
EUR
|
31,000,000
EUR
|
30,000,000
EUR
|
12,000,000
EUR
|
32,000,000
EUR
|
80,000,000
EUR
|
1,000,000
EUR
|
81,000,000
EUR
|
49,000,000
EUR
|
| Comprehensive income |
1,000,000
EUR
|
19,000,000
EUR
|
3,406,000,000
EUR
|
3,404,000,000
EUR
|
3,424,000,000
EUR
|
3,312,000,000
EUR
|
3,361,000,000
EUR
|
0
EUR
|
3,361,000,000
EUR
|
49,000,000
EUR
|
| Comprehensive income attributable to [abstract] | ||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
3,405,000,000
EUR
|
— | — |
3,361,000,000
EUR
|
— | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — |
1,000,000
EUR
|
— | — |
0
EUR
|
— | — | — |