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) |
70,000,000
EUR
|
— |
175,000,000
EUR
|
245,000,000
EUR
|
175,000,000
EUR
|
1 089
EUR
|
1 070
EUR
|
— |
19,000,000
EUR
|
1 089
EUR
|
| Other comprehensive income [abstract] | ||||||||||
| 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 | — | — | — |
9,000,000
EUR
|
— | — |
30,000,000
EUR
|
— | — | — |
| Income tax relating to share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss | — | — | — |
—
EUR
|
— | — |
—
EUR
|
— | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||
| Income tax relating to cash flow hedges included in other comprehensive income | — | — | — |
2,000,000
EUR
|
— | — |
1,000,000
EUR
|
— | — | — |
| Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income | — | — | — |
—
EUR
|
— | — |
1,000,000
EUR
|
— | — | — |
| Income tax relating to share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss | — | — | — |
—
EUR
|
— | — |
—
EUR
|
— | — | — |
| Other comprehensive income |
16,000,000
EUR
|
257,000,000
EUR
|
317,000,000
EUR
|
333,000,000
EUR
|
60,000,000
EUR
|
18,000,000
EUR
|
352,000,000
EUR
|
342,000,000
EUR
|
28,000,000
EUR
|
324,000,000
EUR
|
| Comprehensive income |
86,000,000
EUR
|
257,000,000
EUR
|
492,000,000
EUR
|
578,000,000
EUR
|
235,000,000
EUR
|
1 071
EUR
|
1 422
EUR
|
342,000,000
EUR
|
9,000,000
EUR
|
1 413
EUR
|
| Comprehensive income attributable to [abstract] | ||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
492,000,000
EUR
|
— | — |
1 413
EUR
|
— | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — |
86,000,000
EUR
|
— | — |
9,000,000
EUR
|
— | — | — |