Statement Of Changes In Equity [Abstract]
| Concept |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
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 |
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 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||
| Equity |
547,000,000
EUR
|
— | — |
6 734,7
EUR
|
— |
6 181,2
EUR
|
— | — |
120,000,000
EUR
|
— | — |
1 056,1
EUR
|
4,599,000,000
EUR
|
6 722,7
EUR
|
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
|
676,000,000
EUR
|
5 716,5
EUR
|
38,000,000
EUR
|
6,218,000,000
EUR
|
1 069,8
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
1 148,5
EUR
|
— | — |
1 148,5
EUR
|
— |
0
EUR
|
1 148,5
EUR
|
— | — | — | — | — | — | — | — |
9,995,000,000
EUR
|
— |
9,995,000,000
EUR
|
0
EUR
|
— | — | — | — | — |
9,995,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
1,455,000,000
EUR
|
74,000,000
EUR
|
— |
1,459,000,000
EUR
|
— |
4,000,000
EUR
|
90,000,000
EUR
|
— |
1,295,000,000
EUR
|
— | — | — | — | — | — |
3,730,000,000
EUR
|
— |
612,000,000
EUR
|
1,000,000
EUR
|
— | — | — | — | — |
3,729,000,000
EUR
|
203,000,000
EUR
|
2,914,000,000
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income | — |
1 003,0
EUR
|
74,000,000
EUR
|
— |
1 002,6
EUR
|
— |
4,000,000
EUR
|
1 139,5
EUR
|
— |
1,295,000,000
EUR
|
— | — | — | — | — | — |
1 372,5
EUR
|
— |
1 060,7
EUR
|
1,000,000
EUR
|
— | — | — | — | — |
1 372,4
EUR
|
203,000,000
EUR
|
2,914,000,000
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 | — |
5,040,000,000
EUR
|
— | — |
5,040,000,000
EUR
|
— |
0
EUR
|
5,040,000,000
EUR
|
— | — | — | — | — | — | — | — |
4,393,000,000
EUR
|
— |
4,393,000,000
EUR
|
0
EUR
|
— | — | — | — | — |
4,393,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — |
1,997,000,000
EUR
|
— | — |
1,997,000,000
EUR
|
— | — |
1,997,000,000
EUR
|
— | — | — | — | — | — | — | — |
52,000,000
EUR
|
— |
52,000,000
EUR
|
— | — | — | — | — | — |
52,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — |
20,000,000
EUR
|
— | — |
80,000,000
EUR
|
— |
60,000,000
EUR
|
80,000,000
EUR
|
— | — | — | — | — | — | — | — |
2,000,000
EUR
|
— |
19,000,000
EUR
|
17,000,000
EUR
|
— | — | — | — | — |
19,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
342,000,000
EUR
|
— | — |
342,000,000
EUR
|
— | — |
342,000,000
EUR
|
— | — | — | — | — | — | — | — |
338,000,000
EUR
|
— |
338,000,000
EUR
|
— | — | — | — | — | — |
338,000,000
EUR
|
— | — | — | — | — | — | — | — | — |