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 |
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 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
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 |
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 |
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 |
75,000,000
EUR
|
— | — | — |
15 203
EUR
|
— |
15 130
EUR
|
— | — | — |
2,000,000
EUR
|
— |
50,000,000
EUR
|
— |
54,000,000
EUR
|
189,000,000
EUR
|
698,000,000
EUR
|
15 201
EUR
|
32,000,000
EUR
|
521,000,000
EUR
|
— | — | — | — | — |
12 457
EUR
|
85,000,000
EUR
|
— | — | — |
16,000,000
EUR
|
50,000,000
EUR
|
12 247
EUR
|
674,000,000
EUR
|
54,000,000
EUR
|
— |
303,000,000
EUR
|
12 440
EUR
|
521,000,000
EUR
|
— | — |
25,000,000
EUR
|
— | — |
551,000,000
EUR
|
9 712
EUR
|
9 412
EUR
|
105,000,000
EUR
|
188,000,000
EUR
|
125,000,000
EUR
|
9 400
EUR
|
50,000,000
EUR
|
178,000,000
EUR
|
54,000,000
EUR
|
12,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
-
EUR
|
4 322
EUR
|
-
EUR
|
— |
4 311
EUR
|
— |
12,000,000
EUR
|
4 311
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
3 380
EUR
|
— | — |
3 367
EUR
|
13,000,000
EUR
|
— | — | — | — | — | — |
-
EUR
|
— | — | — |
-
EUR
|
3 367
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
-
EUR
|
97,000,000
EUR
|
10,000,000
EUR
|
— |
98,000,000
EUR
|
— |
1,000,000
EUR
|
-
EUR
|
-
EUR
|
— |
115,000,000
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
7,000,000
EUR
|
-
EUR
|
-
EUR
|
630,000,000
EUR
|
— | — |
-
EUR
|
1,000,000
EUR
|
129,000,000
EUR
|
— | — | — | — | — |
333,000,000
EUR
|
— | — | — |
41,000,000
EUR
|
628,000,000
EUR
|
— |
-
EUR
|
125,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
-
EUR
|
4 225
EUR
|
10,000,000
EUR
|
— |
4 213
EUR
|
— |
13,000,000
EUR
|
4 311
EUR
|
-
EUR
|
— |
115,000,000
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
7,000,000
EUR
|
-
EUR
|
-
EUR
|
4 009
EUR
|
— | — |
3 367
EUR
|
14,000,000
EUR
|
129,000,000
EUR
|
— | — | — | — | — |
333,000,000
EUR
|
— | — | — |
41,000,000
EUR
|
3 996
EUR
|
— |
-
EUR
|
125,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
-
EUR
|
1 386
EUR
|
-
EUR
|
— |
1 376
EUR
|
— |
10,000,000
EUR
|
1 376
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
852,000,000
EUR
|
— | — |
845,000,000
EUR
|
8,000,000
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— | — | — |
-
EUR
|
845,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
-
EUR
|
68,000,000
EUR
|
-
EUR
|
— |
51,000,000
EUR
|
— |
17,000,000
EUR
|
51,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
— |
46,000,000
EUR
|
— | — |
44,000,000
EUR
|
2,000,000
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— | — | — |
-
EUR
|
44,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — |
24,000,000
EUR
|
129,000,000
EUR
|
-
EUR
|
— |
129,000,000
EUR
|
— |
-
EUR
|
105,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
123,000,000
EUR
|
121,000,000
EUR
|
— | — |
2,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— | — | — |
-
EUR
|
121,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
-
EUR
|
104,000,000
EUR
|
-
EUR
|
— |
104,000,000
EUR
|
— |
-
EUR
|
104,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
55,000,000
EUR
|
— | — |
55,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — |
-
EUR
|
— | — | — |
-
EUR
|
55,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — |