Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 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 |
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 |
2023-01-01 to 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 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 |
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 |
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 |
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 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — | — | — |
3 476,4
EUR
|
— |
95,000,000
EUR
|
— |
1 053,8
EUR
|
— | — | — |
7,000,000
EUR
|
— |
2 477,7
EUR
|
— |
2,340,000,000
EUR
|
3,358,000,000
EUR
|
353,000,000
EUR
|
7,000,000
EUR
|
— |
24,000,000
EUR
|
3 475,7
EUR
|
— |
234,000,000
EUR
|
230,000,000
EUR
|
3 212,3
EUR
|
— | — | — | — | — |
68,000,000
EUR
|
— | — | — |
8,000,000
EUR
|
2 440,9
EUR
|
8,662,000,000
EUR
|
17,000,000
EUR
|
2,301,000,000
EUR
|
4,045,000,000
EUR
|
3 211,5
EUR
|
542,000,000
EUR
|
— | — |
36,000,000
EUR
|
— | — |
16,000,000
EUR
|
160,000,000
EUR
|
5,815,000,000
EUR
|
3 013,7
EUR
|
22,000,000
EUR
|
378,000,000
EUR
|
13,000,000
EUR
|
3 013,0
EUR
|
2 531,6
EUR
|
3,801,000,000
EUR
|
2,241,000,000
EUR
|
7,000,000
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
0
EUR
|
0
EUR
|
2,624,000,000
EUR
|
— |
2,625,000,000
EUR
|
— |
0
EUR
|
— |
0
EUR
|
2,625,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
2,026,000,000
EUR
|
2,026,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — |
2,026,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
0
EUR
|
0
EUR
|
317,000,000
EUR
|
— |
317,000,000
EUR
|
— |
163,000,000
EUR
|
— |
0
EUR
|
218,000,000
EUR
|
0
EUR
|
— |
686,000,000
EUR
|
— |
0
EUR
|
— | — | — | — |
0
EUR
|
— | — |
12,000,000
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
277,000,000
EUR
|
29,000,000
EUR
|
0
EUR
|
— |
59,000,000
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — |
277,000,000
EUR
|
55,000,000
EUR
|
— |
0
EUR
|
244,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
0
EUR
|
0
EUR
|
2,942,000,000
EUR
|
— |
2,942,000,000
EUR
|
— |
163,000,000
EUR
|
— |
0
EUR
|
2,406,000,000
EUR
|
0
EUR
|
— |
686,000,000
EUR
|
— |
0
EUR
|
— | — | — | — |
0
EUR
|
— | — |
12,000,000
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
1,749,000,000
EUR
|
1,996,000,000
EUR
|
0
EUR
|
— |
59,000,000
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — |
1,749,000,000
EUR
|
55,000,000
EUR
|
— |
0
EUR
|
244,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Issue of equity |
0
EUR
|
0
EUR
|
79,000,000
EUR
|
— |
79,000,000
EUR
|
— |
0
EUR
|
— |
0
EUR
|
0
EUR
|
72,000,000
EUR
|
— |
0
EUR
|
— |
7,000,000
EUR
|
— | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — | — |
0
EUR
|
6,000,000
EUR
|
46,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — |
46,000,000
EUR
|
0
EUR
|
— |
40,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
0
EUR
|
0
EUR
|
617,000,000
EUR
|
— |
617,000,000
EUR
|
— |
0
EUR
|
— |
0
EUR
|
617,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
332,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — |
332,000,000
EUR
|
0
EUR
|
— |
332,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
4,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
331,000,000
EUR
|
296,000,000
EUR
|
— |
0
EUR
|
— |
31,000,000
EUR
|
— | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — | — |
0
EUR
|
55,000,000
EUR
|
0
EUR
|
491,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
70,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
0
EUR
|
— |
616,000,000
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
0
EUR
|
10,000,000
EUR
|
10,000,000
EUR
|
— |
10,000,000
EUR
|
— |
0
EUR
|
— |
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — | — |
1,000,000
EUR
|
0
EUR
|
1,000,000
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — |
1,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — |
0
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
0
EUR
|
0
EUR
|
229,000,000
EUR
|
— |
229,000,000
EUR
|
— |
0
EUR
|
— |
0
EUR
|
229,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
— |
0
EUR
|
— | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — | — |
0
EUR
|
0
EUR
|
203,000,000
EUR
|
203,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — |
203,000,000
EUR
|
0
EUR
|
— |
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |