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 |
2023-01-01 to 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 |
As at 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 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 |
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 |
2022-01-01 to 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 |
As at 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 |
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 |
21,000,000
EUR
|
— | — |
5,772,700
EUR
|
— |
1,867,300
EUR
|
— | — |
26,000,000
EUR
|
— | — |
59,000,000
EUR
|
— |
3,826,700
EUR
|
— |
1,311,000,000
EUR
|
1,078,000,000
EUR
|
5,766,800
EUR
|
5,000,000
EUR
|
495,000,000
EUR
|
— | — |
5,607,800
EUR
|
— | — |
566,000,000
EUR
|
— | — | — |
20,000,000
EUR
|
— |
9,000,000
EUR
|
3,826,700
EUR
|
1,600,500
EUR
|
1,311,000,000
EUR
|
— |
291,000,000
EUR
|
5,608,700
EUR
|
183,000,000
EUR
|
— | — |
25,000,000
EUR
|
— | — |
1,699,200
EUR
|
5,168,900
EUR
|
45,000,000
EUR
|
32,000,000
EUR
|
38,000,000
EUR
|
1,218,000,000
EUR
|
3,540,000,000
EUR
|
5,177,100
EUR
|
83,000,000
EUR
|
3,826,400
EUR
|
1,311,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other comprehensive income | — |
1,040,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
5,297,000,000
EUR
|
— | — |
2,000,000
EUR
|
70,000,000
EUR
|
— |
51,000,000
EUR
|
— | — | — | — |
144,000,000
EUR
|
— | — | — |
4,106,000,000
EUR
|
5,299,000,000
EUR
|
— | — |
928,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
2,104,000,000
EUR
|
587,000,000
EUR
|
— |
2,021,000,000
EUR
|
— |
84,000,000
EUR
|
6,000,000
EUR
|
— |
3,058,000,000
EUR
|
0
EUR
|
— |
788,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — |
312,000,000
EUR
|
19,000,000
EUR
|
— |
0
EUR
|
6,355,000,000
EUR
|
— |
980,000,000
EUR
|
76,000,000
EUR
|
70,000,000
EUR
|
— |
51,000,000
EUR
|
— | — | — | — |
144,000,000
EUR
|
— | — | — |
4,106,000,000
EUR
|
6,279,000,000
EUR
|
— |
0
EUR
|
928,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
249,000,000
EUR
|
— | — |
249,000,000
EUR
|
— |
0
EUR
|
— | — |
249,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,967,000,000
EUR
|
— |
1,967,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,967,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
22,000,000
EUR
|
— | — |
22,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
0
EUR
|
3,000,000
EUR
|
— | — |
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
3,000,000
EUR
|
— |
3,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Amount removed from reserve of cash flow hedges and included in initial cost or other carrying amount of non-financial asset (liability) or firm commitment for which fair value hedge accounting is applied | — |
49,000,000
EUR
|
— | — |
49,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
49,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |