Analysis Of Income And Expense [Abstract]
| Concept |
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 |
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 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||
| Revenue [abstract] | ||||||||||||||||
| Revenue from rendering of services | — | — | — |
4,396,000,000
EUR
|
— | — | — | — | — | — | — | — |
4,788,000,000
EUR
|
— | — | — |
| Revenue | — | — | — |
4 452,2
EUR
|
— | — | — | — | — | — | — | — |
4 018,2
EUR
|
— | — | — |
| Material income and expense [abstract] | ||||||||||||||||
| Research and development expense | — | — | — |
9,354,000,000
EUR
|
— | — | — | — | — | — | — | — |
7,379,000,000
EUR
|
— | — | — |
| Selling, general and administrative expense [abstract] | ||||||||||||||||
| General and administrative expense | — | — | — |
3,907,000,000
EUR
|
— | — | — | — | — | — | — | — |
3,295,000,000
EUR
|
— | — | — |
| Sales and marketing expense | — | — | — |
1 256,3
EUR
|
— | — | — | — | — | — | — | — |
1 226,3
EUR
|
— | — | — |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | — | — | — |
6,641,000,000
EUR
|
— | — | — | — | — | — | — | — |
150,000,000
EUR
|
— | — | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — | — | — |
-
EUR
|
— | — | — | — | — | — | — | — |
85,000,000
EUR
|
— | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — |
137,000,000
EUR
|
— | — | — | — | — | — | — | — |
1,000,000
EUR
|
— | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income |
4,910,000,000
EUR
|
-
EUR
|
6,373,000,000
EUR
|
1,557,000,000
EUR
|
94,000,000
EUR
|
-
EUR
|
1,463,000,000
EUR
|
-
EUR
|
-
EUR
|
6,111,000,000
EUR
|
41,000,000
EUR
|
6,153,000,000
EUR
|
6,023,000,000
EUR
|
88,000,000
EUR
|
-
EUR
|
-
EUR
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
1,463,000,000
EUR
|
— | — | — | — | — | — | — | — |
6,111,000,000
EUR
|
— | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — |
94,000,000
EUR
|
— | — | — | — | — | — | — | — |
88,000,000
EUR
|
— | — | — |