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 |
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 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
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 |
As at 2022-12-31 |
As at 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 |
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 |
965,000,000
EUR
|
— | — |
2 786,0
EUR
|
2 616,9
EUR
|
— | — |
339,000,000
EUR
|
1,003,000,000
EUR
|
662,000,000
EUR
|
697,000,000
EUR
|
2,302,000,000
EUR
|
— |
2,457,000,000
EUR
|
200,000,000
EUR
|
— |
2 866,5
EUR
|
— |
793,000,000
EUR
|
— | — | — |
299,000,000
EUR
|
1,003,000,000
EUR
|
2 420,9
EUR
|
2,366,000,000
EUR
|
662,000,000
EUR
|
1,501,000,000
EUR
|
219,000,000
EUR
|
3,931,000,000
EUR
|
1,986,000,000
EUR
|
2 747,6
EUR
|
3 199,2
EUR
|
3,740,000,000
EUR
|
402,000,000
EUR
|
1,216,000,000
EUR
|
1,003,000,000
EUR
|
250,000,000
EUR
|
1,661,000,000
EUR
|
662,000,000
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
9,316,000,000
EUR
|
— | — | — |
58,000,000
EUR
|
9,258,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
7,845,000,000
EUR
|
— |
7,745,000,000
EUR
|
100,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
1,395,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
80,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
7,921,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
7,925,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
9,049,000,000
EUR
|
— | — | — | — |
9,049,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
1 087,8
EUR
|
— |
1 087,8
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — |
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
500,000,000
EUR
|
— |
500,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — |
18,000,000
EUR
|
— | — | — |
18,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
65,000,000
EUR
|
— |
15,000,000
EUR
|
50,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
347,000,000
EUR
|
64,000,000
EUR
|
— | — | — |
1,757,000,000
EUR
|
— | — | — | — | — |
1,474,000,000
EUR
|
— | — |
120,000,000
EUR
|
— |
191,000,000
EUR
|
— |
120,000,000
EUR
|
— |
191,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |