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 |
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 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
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 |
As at 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 |
17,832,000,000
EUR
|
— | — | — | — |
1,764,000,000
EUR
|
— |
3,392,000,000
EUR
|
63,000,000
EUR
|
12,578,000,000
EUR
|
35,000,000
EUR
|
16,005,000,000
EUR
|
— | — | — |
20,275,000,000
EUR
|
— | — |
34,918,000,000
EUR
|
1,764,000,000
EUR
|
32,888,000,000
EUR
|
12,575,000,000
EUR
|
266,000,000
EUR
|
38,000,000
EUR
|
— |
27 7
EUR
|
36,731,000,000
EUR
|
39,000,000
EUR
|
1,764,000,000
EUR
|
24,118,000,000
EUR
|
12,57 4
EUR
|
38,772,000,000
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||
| Profit (loss) | — | — |
1,562,000,000
EUR
|
1,566,000,000
EUR
|
4,000,000
EUR
|
— | — | — | — | — | — | — |
1,562,000,000
EUR
|
— |
20,000,000
EUR
|
— |
3,278,000,000
EUR
|
3,278,000,000
EUR
|
— | — | — | — | — | — |
3,298,000,000
EUR
|
— | — | — | — | — | — | — |
| Other comprehensive income | — |
–
EUR
|
16,576,000,000
EUR
|
16,633,000,000
EUR
|
57,000,000
EUR
|
— |
–
EUR
|
— | — | — | — | — |
16,576,000,000
EUR
|
–
EUR
|
2,000,000
EUR
|
— |
6,103,000,000
EUR
|
6,103,000,000
EUR
|
— | — | — | — | — | — |
6,101,000,000
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income | — |
–
EUR
|
15,014,000,000
EUR
|
15,067,000,000
EUR
|
53,000,000
EUR
|
— |
–
EUR
|
— | — | — | — | — |
15,014,000,000
EUR
|
–
EUR
|
22,000,000
EUR
|
— |
2,825,000,000
EUR
|
2,825,000,000
EUR
|
— | — | — | — | — | — |
2,803,000,000
EUR
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — |
413,000,000
EUR
|
535,000,000
EUR
|
12 2
EUR
|
— | — | — | — | — | — | — |
413,000,000
EUR
|
— |
3 3
EUR
|
— |
412,000,000
EUR
|
412,000,000
EUR
|
— | — | — | — | — | — |
445,000,000
EUR
|
— | — | — | — | — | — | — |
| Decrease through other distributions to owners, equity | — | — |
58,000,000
EUR
|
58,000,000
EUR
|
— | — | — | — | — | — | — | — |
58,000,000
EUR
|
— | — | — |
59,000,000
EUR
|
59,000,000
EUR
|
— | — | — | — | — | — |
59,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — | — |
1,392,000,000
EUR
|
1,39 2
EUR
|
— | — | — | — | — | — | — | — |
1,392,000,000
EUR
|
— | — | — |
545,000,000
EUR
|
545,000,000
EUR
|
— | — | — | — | — | — |
545,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — |
6,000,000
EUR
|
6,000,000
EUR
|
— | — | — | — | — | — | — | — |
6,000,000
EUR
|
— | — | — |
2,000,000
EUR
|
2,000,000
EUR
|
— | — | — | — | — | — |
2,000,000
EUR
|
— | — | — | — | — | — | — |