Statement Of Changes In Equity [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 |
2021-06-15 to 2021-06-15 |
2021-06-15 to 2021-06-15 |
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 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||
| Dividends recognised as distributions to non-controlling interests |
503,000,000
EUR
|
— | — |
503,000,000
EUR
|
— | — | — |
559,000,000
EUR
|
559,000,000
EUR
|
— | — | — | — | — |
435,000,000
EUR
|
435,000,000
EUR
|
| Increase (decrease) through acquisition of subsidiary, equity | — | — | — | — | — | — |
2,930,000,000
EUR
|
4,848,000,000
EUR
|
1,918,000,000
EUR
|
2,930,000,000
EUR
|
— | — | — | — | — | — |
| Cancellation of treasury shares | — | — | — | — | — | — | — | — | — | — |
9,416,000,000
EUR
|
44,000,000
EUR
|
—
EUR
|
9,372,000,000
EUR
|
—
EUR
|
— |
| Reduction of issued capital | — |
20,626,000,000
EUR
|
—
EUR
|
—
EUR
|
18,400,000,000
EUR
|
20,626,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |