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 |
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) |
6,000,000
EUR
|
— | — |
9,045,000,000
EUR
|
9,051,000,000
EUR
|
9,045,000,000
EUR
|
6,812,000,000
EUR
|
6,820,000,000
EUR
|
— |
8,000,000
EUR
|
6,812,000,000
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 | — | — | — | — |
324,000,000
EUR
|
— | — |
45,000,000
EUR
|
— | — | — | — |
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations | — | — | — | — |
3,407,000,000
EUR
|
— | — |
5,089,000,000
EUR
|
— | — | — | — |
| Cash flow hedges [abstract] | ||||||||||||
| Other comprehensive income, before tax, cash flow hedges | — | — | — | — |
50,000,000
EUR
|
— | — |
0
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 | — | — | — | — |
71,000,000
EUR
|
— | — |
8,000,000
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 | — | — | — | — |
79,000,000
EUR
|
— | — |
119,000,000
EUR
|
— | — | — | — |
| Other comprehensive income |
2,000,000
EUR
|
253,000,000
EUR
|
3,405,000,000
EUR
|
3,787,000,000
EUR
|
3,789,000,000
EUR
|
129,000,000
EUR
|
119,000,000
EUR
|
5,245,000,000
EUR
|
5,088,000,000
EUR
|
1,000,000
EUR
|
5,244,000,000
EUR
|
37,000,000
EUR
|
| Comprehensive income | — | — | — | — |
1 284,0
EUR
|
— | — |
1,575,000,000
EUR
|
— | — | — | — |
| Comprehensive income attributable to [abstract] | ||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — |
1 283,2
EUR
|
— | — |
1,568,000,000
EUR
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — |
8,000,000
EUR
|
— | — |
7,000,000
EUR
|
— | — | — | — |