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 |
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 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 |
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 |
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 |
As at 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity |
96,000,000
EUR
|
— | — |
1,026,500
EUR
|
— |
74,000,000
EUR
|
— |
657,000,000
EUR
|
— |
5,457,000,000
EUR
|
— | — |
5,000,000
EUR
|
— | — |
3,640,000,000
EUR
|
542,000,000
EUR
|
1,027,000
EUR
|
47,000,000
EUR
|
— |
1,065,400
EUR
|
— | — |
194,000,000
EUR
|
— | — |
121,000,000
EUR
|
— | — |
3,885,000,000
EUR
|
— |
17,000,000
EUR
|
2,317,000,000
EUR
|
3,640,000,000
EUR
|
823,000,000
EUR
|
1,067,100
EUR
|
— | — |
66,000,000
EUR
|
— |
2,502,000,000
EUR
|
43,000,000
EUR
|
8,853,000,000
EUR
|
85,000,000
EUR
|
2,316,000,000
EUR
|
151,000,000
EUR
|
8,848,000,000
EUR
|
5,000,000
EUR
|
366,000,000
EUR
|
3,640,000,000
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
648,000,000
EUR
|
0
EUR
|
— |
657,000,000
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— |
10,000,000
EUR
|
657,000,000
EUR
|
— |
0
EUR
|
0
EUR
|
— | — | — | — |
0
EUR
|
— |
0
EUR
|
2,317,000,000
EUR
|
— |
2,325,000,000
EUR
|
8,000,000
EUR
|
— |
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — | — | — |
0
EUR
|
2,325,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
235,000,000
EUR
|
6,000,000
EUR
|
— |
235,000,000
EUR
|
— |
47,000,000
EUR
|
— |
2,317,000,000
EUR
|
— |
0
EUR
|
2,317,000,000
EUR
|
— |
294,000,000
EUR
|
0
EUR
|
— | — | — | — |
19,000,000
EUR
|
— |
0
EUR
|
442,000,000
EUR
|
— |
2,502,000,000
EUR
|
0
EUR
|
— |
19,000,000
EUR
|
2,502,000,000
EUR
|
— |
78,000,000
EUR
|
— | — | — | — | — |
43,000,000
EUR
|
442,000,000
EUR
|
— |
458,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
413,000,000
EUR
|
6,000,000
EUR
|
— |
422,000,000
EUR
|
— |
47,000,000
EUR
|
— |
2,317,000,000
EUR
|
— |
10,000,000
EUR
|
1,659,000,000
EUR
|
— |
294,000,000
EUR
|
0
EUR
|
— | — | — | — |
19,000,000
EUR
|
— |
0
EUR
|
2,759,000,000
EUR
|
— |
178,000,000
EUR
|
8,000,000
EUR
|
— |
19,000,000
EUR
|
2,502,000,000
EUR
|
— |
78,000,000
EUR
|
— | — | — | — | — |
43,000,000
EUR
|
2,767,000,000
EUR
|
— |
458,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
803,000,000
EUR
|
0
EUR
|
— |
800,000,000
EUR
|
— |
0
EUR
|
— |
800,000,000
EUR
|
— |
3,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
— | — | — | — |
0
EUR
|
— |
0
EUR
|
985,000,000
EUR
|
— |
0
EUR
|
5,000,000
EUR
|
— |
0
EUR
|
980,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — |
0
EUR
|
980,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
1,000,000
EUR
|
93,000,000
EUR
|
— |
23,000,000
EUR
|
— |
0
EUR
|
— |
56,000,000
EUR
|
— |
24,000,000
EUR
|
0
EUR
|
— |
14,000,000
EUR
|
0
EUR
|
— | — | — | — |
0
EUR
|
— |
0
EUR
|
27,000,000
EUR
|
— |
8,000,000
EUR
|
10,000,000
EUR
|
— |
0
EUR
|
47,000,000
EUR
|
— |
0
EUR
|
— | — | — | — | — |
0
EUR
|
36,000,000
EUR
|
— |
2,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) in equity | — |
389,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |