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) |
950,000,000
EUR
|
— | — | — |
788,000,000
EUR
|
162,000,000
EUR
|
788,000,000
EUR
|
3,788,000,000
EUR
|
3,215,000,000
EUR
|
— | — |
573,000,000
EUR
|
3,788,000,000
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 | — | — | — | — | — |
541,000,000
EUR
|
— | — |
473,000,000
EUR
|
— | — | — | — | — |
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||
| Gains (losses) on exchange differences on translation of foreign operations, before tax | — | — | — | — | — |
2,566,000,000
EUR
|
— | — |
3,319,000,000
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 | — | — | — | — | — |
90,000,000
EUR
|
— | — |
92,000,000
EUR
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||||
| Income tax relating to exchange differences on translation of foreign operations included in other comprehensive income | — | — | — | — | — |
11,000,000
EUR
|
— | — |
9,000,000
EUR
|
— | — | — | — | — |
| Other comprehensive income |
353,000,000
EUR
|
28,000,000
EUR
|
522,000,000
EUR
|
2,207,000,000
EUR
|
2,757,000,000
EUR
|
3,110,000,000
EUR
|
— | — |
3,774,000,000
EUR
|
3,122,000,000
EUR
|
14,000,000
EUR
|
193,000,000
EUR
|
3,581,000,000
EUR
|
445,000,000
EUR
|
| Comprehensive income |
1,303,000,000
EUR
|
28,000,000
EUR
|
522,000,000
EUR
|
2,207,000,000
EUR
|
1,969,000,000
EUR
|
3,272,000,000
EUR
|
788,000,000
EUR
|
3,788,000,000
EUR
|
6,989,000,000
EUR
|
3,122,000,000
EUR
|
14,000,000
EUR
|
380,000,000
EUR
|
7,369,000,000
EUR
|
445,000,000
EUR
|
| Comprehensive income attributable to [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — |
1,969,000,000
EUR
|
— | — |
7,369,000,000
EUR
|
— | — | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — |
1,303,000,000
EUR
|
— | — |
380,000,000
EUR
|
— | — | — | — | — |