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 |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||
| Profit (loss) |
770,000,000
EUR
|
— | — | — |
1,607,000,000
EUR
|
2,377,000,000
EUR
|
1,607,000,000
EUR
|
— |
868,000,000
EUR
|
— |
314,000,000
EUR
|
— |
554,000,000
EUR
|
554,000,000
EUR
|
| Other comprehensive income [abstract] | ||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||||||||||
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans | — | — | — | — | — |
180,000,000
EUR
|
— | — |
10,000,000
EUR
|
— | — | — | — | — |
| Other comprehensive income, before tax, gains (losses) on hedging instruments that hedge investments in equity instruments | — | — | — | — | — |
19,000,000
EUR
|
— | — |
2,000,000
EUR
|
— | — | — | — | — |
| Other comprehensive income that will be reclassified to profit or loss, before tax | — | — | — | — | — |
2,000,000
EUR
|
— | — |
2,000,000
EUR
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income | — | — | — | — | — |
12,000,000
EUR
|
— | — |
11,000,000
EUR
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||||
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — | — | — |
5,000,000
EUR
|
— | — |
1,000,000
EUR
|
— | — | — | — | — |
| Other comprehensive income | — | — | — | — | — |
432,000,000
EUR
|
— | — |
149,000,000
EUR
|
— | — | — | — | — |
| Comprehensive income |
972,000,000
EUR
|
0
EUR
|
0
EUR
|
141,000,000
EUR
|
1,836,000,000
EUR
|
2,808,000,000
EUR
|
1,695,000,000
EUR
|
0
EUR
|
719,000,000
EUR
|
72,000,000
EUR
|
238,000,000
EUR
|
0
EUR
|
480,000,000
EUR
|
552,000,000
EUR
|
| Comprehensive income attributable to [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — |
1,836,000,000
EUR
|
— | — |
480,000,000
EUR
|
— | — | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — |
972,000,000
EUR
|
— | — |
238,000,000
EUR
|
— | — | — | — | — |