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 |
As at 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 |
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 |
As at 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 |
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 2021-12-31 |
2021-01-01 to 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 |
6 642,8
EUR
|
— | — |
473,000,000
EUR
|
— | — |
56,000,000
EUR
|
5 947,6
EUR
|
1 067,3
EUR
|
3,304,000,000
EUR
|
6 637,2
EUR
|
— | — | — | — |
5 336,1
EUR
|
— |
5 720,3
EUR
|
6,218,000,000
EUR
|
— | — |
676,000,000
EUR
|
5 716,5
EUR
|
38,000,000
EUR
|
— |
1 069,8
EUR
|
— | — |
4 881,2
EUR
|
102,000,000
EUR
|
4 895,8
EUR
|
1 069,8
EUR
|
929,000,000
EUR
|
9,623,000,000
EUR
|
4 906,0
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — |
9,995,000,000
EUR
|
— |
9,995,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — |
9,995,000,000
EUR
|
— |
6,000,000
EUR
|
— |
9,045,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
9,051,000,000
EUR
|
9,045,000,000
EUR
|
— | — | — | — | — | — | — |
| Other comprehensive income | — | — |
3,730,000,000
EUR
|
— |
612,000,000
EUR
|
1,000,000
EUR
|
— | — | — | — | — |
203,000,000
EUR
|
3,729,000,000
EUR
|
2,914,000,000
EUR
|
2,000,000
EUR
|
— |
3,787,000,000
EUR
|
— | — |
253,000,000
EUR
|
3,405,000,000
EUR
|
— | — | — | — | — |
3,789,000,000
EUR
|
129,000,000
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income | — | — |
1 372,5
EUR
|
— |
1 060,7
EUR
|
1,000,000
EUR
|
— | — | — | — | — |
203,000,000
EUR
|
1 372,4
EUR
|
2,914,000,000
EUR
|
8,000,000
EUR
|
— |
1 283,2
EUR
|
— | — |
253,000,000
EUR
|
3,405,000,000
EUR
|
— | — | — | — | — |
1 284,0
EUR
|
9,174,000,000
EUR
|
— | — | — | — | — | — | — |
| Issue of equity | — |
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — | — |
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— |
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — |
4,393,000,000
EUR
|
— |
4,393,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — |
4,393,000,000
EUR
|
— |
0
EUR
|
— |
3,779,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
3,779,000,000
EUR
|
3,779,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — | — |
52,000,000
EUR
|
— |
52,000,000
EUR
|
— | — | — | — | — | — | — |
52,000,000
EUR
|
— | — | — |
917,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
917,000,000
EUR
|
917,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — | — |
2,000,000
EUR
|
— |
19,000,000
EUR
|
17,000,000
EUR
|
— | — | — | — | — | — |
19,000,000
EUR
|
— |
72,000,000
EUR
|
— |
228,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
300,000,000
EUR
|
228,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — |
338,000,000
EUR
|
— |
338,000,000
EUR
|
— | — | — | — | — | — | — |
338,000,000
EUR
|
— | — | — |
305,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
305,000,000
EUR
|
305,000,000
EUR
|
— | — | — | — | — | — | — |