Analysis Of Income And Expense [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 |
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 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||
| Revenue [abstract] | ||||||||||||||||
| Interest income | — | — | — | — | — | — |
9,000,000
EUR
|
— | — |
8,000,000
EUR
|
— | — | — | — | — | — |
| Revenue | — | — | — | — | — | — |
11 434
EUR
|
— | — |
9 714
EUR
|
— | — | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||
| Research and development expense | — | — | — | — | — | — |
325,000,000
EUR
|
— | — |
300,000,000
EUR
|
— | — | — | — | — | — |
| Finance income (cost) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other finance income (cost) | — | — | — | — | — | — |
4,000,000
EUR
|
— | — |
8,000,000
EUR
|
— | — | — | — | — | — |
| Interest expense | — | — | — | — | — | — |
107,000,000
EUR
|
— | — |
114,000,000
EUR
|
— | — | — | — | — | — |
| Expense arising from passage of time on other provisions | — | — | — | — | — | — |
1,000,000
EUR
|
— | — |
68,000,000
EUR
|
— | — | — | — | — | — |
| Sales and marketing expense | — | — | — | — | — | — |
287,000,000
EUR
|
— | — |
312,000,000
EUR
|
— | — | — | — | — | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — | — | — | — | — |
158,000,000
EUR
|
— | — |
58,000,000
EUR
|
— | — | — | — | — | — |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method, before tax [abstract] | ||||||||||||||||
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, before tax | — | — | — | — | — | — |
0
EUR
|
— | — |
1,000,000
EUR
|
— | — | — | — | — | — |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, before tax | — | — | — | — | — | — |
30,000,000
EUR
|
— | — |
99,000,000
EUR
|
— | — | — | — | — | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||
| Income tax relating to components of other comprehensive income | — | — | — | — | — | — |
78,000,000
EUR
|
— | — |
3,000,000
EUR
|
— | — | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income |
50,000,000
EUR
|
948,000,000
EUR
|
1 956
EUR
|
11,000,000
EUR
|
486,000,000
EUR
|
508,000,000
EUR
|
2 006
EUR
|
25,000,000
EUR
|
962,000,000
EUR
|
1 766
EUR
|
699,000,000
EUR
|
27,000,000
EUR
|
35,000,000
EUR
|
1 793
EUR
|
169,000,000
EUR
|
1,000,000
EUR
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — |
1 956
EUR
|
— | — |
1 793
EUR
|
— | — | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — |
50,000,000
EUR
|
— | — |
27,000,000
EUR
|
— | — | — | — | — | — |