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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | |||||||||||||||
| Profit (loss) |
572,000,000
EUR
|
— |
6,049,000,000
EUR
|
6,621,000,000
EUR
|
6,049,000,000
EUR
|
5,581,000,000
EUR
|
6,073,000,000
EUR
|
492,000,000
EUR
|
5,581,000,000
EUR
|
— | — |
5,625,000,000
EUR
|
5,625,000,000
EUR
|
6,026,000,000
EUR
|
401,000,000
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) from investments in equity instruments |
19,000,000
EUR
|
147,000,000
EUR
|
147,000,000
EUR
|
166,000,000
EUR
|
— | — |
78,000,000
EUR
|
10,000,000
EUR
|
68,000,000
EUR
|
68,000,000
EUR
|
25,000,000
EUR
|
25,000,000
EUR
|
— |
29,000,000
EUR
|
4,000,000
EUR
|
| Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans |
6,000,000
EUR
|
— |
1,728,000,000
EUR
|
1,734,000,000
EUR
|
1,728,000,000
EUR
|
217,000,000
EUR
|
215,000,000
EUR
|
2,000,000
EUR
|
217,000,000
EUR
|
— | — |
352,000,000
EUR
|
352,000,000
EUR
|
353,000,000
EUR
|
1,000,000
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 |
149,000,000
EUR
|
1,025,000,000
EUR
|
1,028,000,000
EUR
|
1,177,000,000
EUR
|
3,000,000
EUR
|
22,000,000
EUR
|
2,590,000,000
EUR
|
212,000,000
EUR
|
2,378,000,000
EUR
|
2,356,000,000
EUR
|
18,000,000
EUR
|
16,000,000
EUR
|
2,000,000
EUR
|
15,000,000
EUR
|
1,000,000
EUR
|
| Cash flow hedges [abstract] | |||||||||||||||
| Other comprehensive income, net of tax, cash flow hedges |
3,000,000
EUR
|
276,000,000
EUR
|
276,000,000
EUR
|
279,000,000
EUR
|
— | — |
60,000,000
EUR
|
2,000,000
EUR
|
62,000,000
EUR
|
62,000,000
EUR
|
176,000,000
EUR
|
176,000,000
EUR
|
— |
176,000,000
EUR
|
— |
| Comprehensive income |
749,000,000
EUR
|
1,448,000,000
EUR
|
9,228,000,000
EUR
|
9,977,000,000
EUR
|
7,780,000,000
EUR
|
5,776,000,000
EUR
|
3,836,000,000
EUR
|
286,000,000
EUR
|
3,550,000,000
EUR
|
2,226,000,000
EUR
|
183,000,000
EUR
|
6,162,000,000
EUR
|
5,979,000,000
EUR
|
6,569,000,000
EUR
|
407,000,000
EUR
|
| Comprehensive income attributable to [abstract] | |||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
9,228,000,000
EUR
|
— | — |
3,550,000,000
EUR
|
— | — | — | — | — | — |
6,162,000,000
EUR
|
— |
| Comprehensive income, attributable to non-controlling interests | — | — | — |
749,000,000
EUR
|
— | — |
286,000,000
EUR
|
— | — | — | — | — | — |
407,000,000
EUR
|
— |