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 |
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 |
2023-01-01 to 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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity |
19,000,000
EUR
|
— | — |
7 941
EUR
|
— | — |
-
EUR
|
— | — |
1 486
EUR
|
— |
550,000,000
EUR
|
— |
392,000,000
EUR
|
60,000,000
EUR
|
6 455
EUR
|
19,000,000
EUR
|
— |
5 491
EUR
|
— |
7 424
EUR
|
— | — |
17,000,000
EUR
|
— |
30,000,000
EUR
|
— | — |
1 248
EUR
|
526,000,000
EUR
|
392,000,000
EUR
|
6,000,000
EUR
|
6 176
EUR
|
— |
5 114
EUR
|
— | — |
125,000,000
EUR
|
— | — |
6 641
EUR
|
156,000,000
EUR
|
72,000,000
EUR
|
4 655
EUR
|
65,000,000
EUR
|
5 414
EUR
|
510,000,000
EUR
|
6,000,000
EUR
|
392,000,000
EUR
|
1 227
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
1 532
EUR
|
-
EUR
|
— |
1 013
EUR
|
-
EUR
|
— |
519,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — |
1 013
EUR
|
— |
-
EUR
|
— |
-
EUR
|
1 355
EUR
|
— |
459,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — |
896,000,000
EUR
|
— |
-
EUR
|
896,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
114,000,000
EUR
|
16,000,000
EUR
|
— |
97,000,000
EUR
|
146,000,000
EUR
|
— |
17,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — |
-
EUR
|
— |
33,000,000
EUR
|
— |
-
EUR
|
315,000,000
EUR
|
— |
28,000,000
EUR
|
— |
281,000,000
EUR
|
42,000,000
EUR
|
— | — | — | — | — |
-
EUR
|
— |
48,000,000
EUR
|
287,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
1 646
EUR
|
16,000,000
EUR
|
— |
1 110
EUR
|
146,000,000
EUR
|
— |
536,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — |
1 013
EUR
|
— |
33,000,000
EUR
|
— |
-
EUR
|
1 670
EUR
|
— |
487,000,000
EUR
|
— |
281,000,000
EUR
|
42,000,000
EUR
|
— | — | — | — | — |
896,000,000
EUR
|
— |
48,000,000
EUR
|
1 183
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
805,000,000
EUR
|
-
EUR
|
— |
350,000,000
EUR
|
-
EUR
|
— |
455,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — |
350,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
752,000,000
EUR
|
— |
456,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — |
296,000,000
EUR
|
— |
-
EUR
|
296,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — |
146,000,000
EUR
|
-
EUR
|
— |
146,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — |
146,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
165,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — |
165,000,000
EUR
|
— |
-
EUR
|
165,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — |
246,000,000
EUR
|
14,000,000
EUR
|
— |
406,000,000
EUR
|
176,000,000
EUR
|
— |
160,000,000
EUR
|
-
EUR
|
— |
54,000,000
EUR
|
— |
-
EUR
|
— | — | — | — |
187,000,000
EUR
|
— |
111,000,000
EUR
|
— |
-
EUR
|
6,000,000
EUR
|
— |
6,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
44,000,000
EUR
|
-
EUR
|
— |
47,000,000
EUR
|
-
EUR
|
— |
3,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — |
47,000,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
20,000,000
EUR
|
— |
4,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — |
24,000,000
EUR
|
— |
-
EUR
|
24,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — |