Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||
| Equity | — | — |
14,112,000,000
EUR
|
— |
2 746
EUR
|
2 996
EUR
|
6 124
EUR
|
— | — |
1 704
EUR
|
123,000,000
EUR
|
12,408,000,000
EUR
|
665,000,000
EUR
|
— |
13,932,000,000
EUR
|
— | — | — | — |
2 567
EUR
|
5 637
EUR
|
3 176
EUR
|
886,000,000
EUR
|
1 720
EUR
|
54,000,000
EUR
|
12,212,000,000
EUR
|
— | — |
88,000,000
EUR
|
2 825
EUR
|
5 213
EUR
|
3 306
EUR
|
12,789,000,000
EUR
|
112,000,000
EUR
|
11,144,000,000
EUR
|
1 645
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||
| Profit (loss) |
1 201
EUR
|
— | — |
1 040
EUR
|
— | — | — |
1 040
EUR
|
161,000,000
EUR
|
— | — | — | — | — | — | — |
1 131
EUR
|
158,000,000
EUR
|
973,000,000
EUR
|
— | — | — | — | — | — | — | — |
973,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Other comprehensive income |
231,000,000
EUR
|
— | — |
221,000,000
EUR
|
— | — | — | — |
10,000,000
EUR
|
— | — | — | — |
221,000,000
EUR
|
— | — |
1 018
EUR
|
20,000,000
EUR
|
— | — | — | — | — | — | — | — |
998,000,000
EUR
|
998,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Comprehensive income |
970,000,000
EUR
|
— | — |
819,000,000
EUR
|
— | — | — |
1 040
EUR
|
151,000,000
EUR
|
— | — | — | — |
221,000,000
EUR
|
— | — |
2 149
EUR
|
178,000,000
EUR
|
973,000,000
EUR
|
— | — | — | — | — | — | — |
998,000,000
EUR
|
1 971
EUR
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
744,000,000
EUR
|
— | — |
671,000,000
EUR
|
— | — | — |
671,000,000
EUR
|
73,000,000
EUR
|
— | — | — | — | — | — | — |
777,000,000
EUR
|
97,000,000
EUR
|
680,000,000
EUR
|
— | — | — | — | — | — | — | — |
680,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
12,000,000
EUR
|
— | — |
108,000,000
EUR
|
— | — | — |
108,000,000
EUR
|
96,000,000
EUR
|
— | — | — | — | — | — | — |
2,000,000
EUR
|
7,000,000
EUR
|
9,000,000
EUR
|
— | — | — | — | — | — | — | — |
9,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
63,000,000
EUR
|
69,000,000
EUR
|
— |
63,000,000
EUR
|
— | — | — |
6,000,000
EUR
|
— | — | — | — | — | — | — |
224,000,000
EUR
|
230,000,000
EUR
|
— |
6,000,000
EUR
|
— | — | — | — | — | — | — | — |
230,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
196,000,000
EUR
|
— | — |
197,000,000
EUR
|
— | — | — |
197,000,000
EUR
|
1,000,000
EUR
|
— | — | — | — | — | — | — |
16,000,000
EUR
|
1,000,000
EUR
|
15,000,000
EUR
|
— | — | — | — | — | — | — | — |
15,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
22,000,000
EUR
|
— | — |
21,000,000
EUR
|
— | — | — |
21,000,000
EUR
|
1,000,000
EUR
|
— | — | — | — | — | — | — |
15,000,000
EUR
|
2,000,000
EUR
|
13,000,000
EUR
|
— | — | — | — | — | — | — | — |
13,000,000
EUR
|
— | — | — | — | — | — | — | — |