Statement Of Changes In Equity [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||
| Equity |
1 928,0
EUR
|
— | — | — | — |
2,122,000,000
EUR
|
1 966,2
EUR
|
659,000,000
EUR
|
543,000,000
EUR
|
3,047,000,000
EUR
|
1 862,1
EUR
|
— | — | — | — | — |
1 707,1
EUR
|
— | — |
1 714,7
EUR
|
3,171,000,000
EUR
|
— |
1 638,5
EUR
|
— |
2,552,000,000
EUR
|
543,000,000
EUR
|
686,000,000
EUR
|
— |
477,000,000
EUR
|
1 238,0
EUR
|
542,000,000
EUR
|
4,459,000,000
EUR
|
1 445,1
EUR
|
2,323,000,000
EUR
|
1 285,7
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
-
EUR
|
4,846,000,000
EUR
|
179,000,000
EUR
|
4,846,000,000
EUR
|
— | — | — | — | — | — |
4,667,000,000
EUR
|
-
EUR
|
-
EUR
|
253,000,000
EUR
|
4,209,000,000
EUR
|
— |
-
EUR
|
4,462,000,000
EUR
|
— | — |
-
EUR
|
— |
-
EUR
|
— | — | — |
4,462,000,000
EUR
|
— | — | — | — | — | — | — |
| Other comprehensive income | — |
-
EUR
|
335,000,000
EUR
|
46,000,000
EUR
|
211,000,000
EUR
|
— | — | — | — | — | — |
381,000,000
EUR
|
-
EUR
|
124,000,000
EUR
|
100,000,000
EUR
|
1,266,000,000
EUR
|
— |
-
EUR
|
78,000,000
EUR
|
— | — |
1,288,000,000
EUR
|
— |
-
EUR
|
— | — | — |
1,366,000,000
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income | — |
-
EUR
|
5,181,000,000
EUR
|
133,000,000
EUR
|
5,057,000,000
EUR
|
— | — | — | — | — | — |
5,048,000,000
EUR
|
-
EUR
|
124,000,000
EUR
|
353,000,000
EUR
|
5,475,000,000
EUR
|
— |
-
EUR
|
4,540,000,000
EUR
|
— | — |
1,288,000,000
EUR
|
— |
-
EUR
|
— | — | — |
5,828,000,000
EUR
|
— | — | — | — | — | — | — |
| Issue of equity | — |
1,000,000
EUR
|
66,000,000
EUR
|
-
EUR
|
1,000,000
EUR
|
— | — | — | — | — | — |
66,000,000
EUR
|
66,000,000
EUR
|
-
EUR
|
-
EUR
|
230,000,000
EUR
|
— |
229,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
— |
1,000,000
EUR
|
— | — | — |
230,000,000
EUR
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
-
EUR
|
2,578,000,000
EUR
|
183,000,000
EUR
|
2,578,000,000
EUR
|
— | — | — | — | — | — |
2,395,000,000
EUR
|
-
EUR
|
-
EUR
|
134,000,000
EUR
|
1,626,000,000
EUR
|
— |
-
EUR
|
1,760,000,000
EUR
|
— | — |
-
EUR
|
— |
-
EUR
|
— | — | — |
1,760,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
-
EUR
|
191,000,000
EUR
|
20,000,000
EUR
|
191,000,000
EUR
|
— | — | — | — | — | — |
171,000,000
EUR
|
-
EUR
|
-
EUR
|
104,000,000
EUR
|
513,000,000
EUR
|
— |
-
EUR
|
617,000,000
EUR
|
— | — |
-
EUR
|
— |
-
EUR
|
— | — | — |
617,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — |
-
EUR
|
6,000,000
EUR
|
-
EUR
|
6,000,000
EUR
|
— | — | — | — | — | — |
6,000,000
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
248,000,000
EUR
|
— |
-
EUR
|
248,000,000
EUR
|
— | — |
-
EUR
|
— |
-
EUR
|
— | — | — |
248,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — |
-
EUR
|
60,000,000
EUR
|
-
EUR
|
60,000,000
EUR
|
— | — | — | — | — | — |
60,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
-
EUR
|
251,000,000
EUR
|
-
EUR
|
251,000,000
EUR
|
— | — | — | — | — | — |
251,000,000
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
270,000,000
EUR
|
— |
-
EUR
|
270,000,000
EUR
|
— | — |
-
EUR
|
— |
-
EUR
|
— | — | — |
270,000,000
EUR
|
— | — | — | — | — | — | — |