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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) |
3,000,000
EUR
|
— | — | — | — |
765,000,000
EUR
|
762,000,000
EUR
|
765,000,000
EUR
|
308,000,000
EUR
|
367,000,000
EUR
|
— |
59,000,000
EUR
|
— |
308,000,000
EUR
|
— | — |
| Other comprehensive income [abstract] | ||||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||||
| Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans |
1,000,000
EUR
|
171,000,000
EUR
|
— |
171,000,000
EUR
|
— |
171,000,000
EUR
|
172,000,000
EUR
|
— | — |
12,000,000
EUR
|
— |
30,000,000
EUR
|
— |
42,000,000
EUR
|
42,000,000
EUR
|
42,000,000
EUR
|
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations |
4,000,000
EUR
|
112,000,000
EUR
|
— |
12,000,000
EUR
|
100,000,000
EUR
|
112,000,000
EUR
|
116,000,000
EUR
|
— | — |
437,000,000
EUR
|
355,000,000
EUR
|
85,000,000
EUR
|
— |
352,000,000
EUR
|
3,000,000
EUR
|
352,000,000
EUR
|
| Hedges of net investment in foreign operations [abstract] | ||||||||||||||||
| Other comprehensive income, net of tax, hedges of net investments in foreign operations | — |
16,000,000
EUR
|
— | — |
16,000,000
EUR
|
16,000,000
EUR
|
16,000,000
EUR
|
— | — |
—
EUR
|
— | — | — | — | — | — |
| Other comprehensive income | — | — | — | — | — | — |
356,000,000
EUR
|
— | — |
428,000,000
EUR
|
— | — | — | — | — | — |
| Comprehensive income |
2,000,000
EUR
|
351,000,000
EUR
|
84,000,000
EUR
|
183,000,000
EUR
|
84,000,000
EUR
|
1,116,000,000
EUR
|
1,118,000,000
EUR
|
765,000,000
EUR
|
308,000,000
EUR
|
61,000,000
EUR
|
355,000,000
EUR
|
8,000,000
EUR
|
17,000,000
EUR
|
69,000,000
EUR
|
39,000,000
EUR
|
377,000,000
EUR
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — |
1,116,000,000
EUR
|
— | — |
69,000,000
EUR
|
— | — | — | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — |
2,000,000
EUR
|
— | — |
8,000,000
EUR
|
— | — | — | — | — | — |