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) |
538,000,000
EUR
|
4,538,000,000
EUR
|
— |
4,538,000,000
EUR
|
5,076,000,000
EUR
|
3,487,000,000
EUR
|
— |
482,000,000
EUR
|
3,005,000,000
EUR
|
3,005,000,000
EUR
|
| Other comprehensive income [abstract] | ||||||||||
| Other comprehensive income |
181,000,000
EUR
|
1,141,000,000
EUR
|
1,457,000,000
EUR
|
2,598,000,000
EUR
|
2,779,000,000
EUR
|
1,009,000,000
EUR
|
1,035,000,000
EUR
|
63,000,000
EUR
|
946,000,000
EUR
|
89,000,000
EUR
|
| Comprehensive income |
719,000,000
EUR
|
5,679,000,000
EUR
|
1,457,000,000
EUR
|
7,136,000,000
EUR
|
7,855,000,000
EUR
|
2,478,000,000
EUR
|
1,035,000,000
EUR
|
419,000,000
EUR
|
2,059,000,000
EUR
|
3,094,000,000
EUR
|
| Comprehensive income attributable to [abstract] | ||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — |
7,136,000,000
EUR
|
2,059,000,000
EUR
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — |
719,000,000
EUR
|
419,000,000
EUR
|
— | — | — | — |