Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
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 |
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 | — |
3 460,7
EUR
|
— | — |
2,623,000,000
EUR
|
— |
1,037,000,000
EUR
|
553,000,000
EUR
|
363,000,000
EUR
|
277,000,000
EUR
|
3 198,4
EUR
|
3 103,4
EUR
|
— |
3 448,9
EUR
|
— | — | — |
2,801,000,000
EUR
|
1,037,000,000
EUR
|
333,000,000
EUR
|
553,000,000
EUR
|
523,000,000
EUR
|
3 168,8
EUR
|
2 990,8
EUR
|
— | — |
343,000,000
EUR
|
3 290,7
EUR
|
2 767,7
EUR
|
2 990,1
EUR
|
1,037,000,000
EUR
|
977,000,000
EUR
|
553,000,000
EUR
|
3,006,000,000
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||
| Profit (loss) |
4,394,000,000
EUR
|
— |
3,862,000,000
EUR
|
532,000,000
EUR
|
— | — | — | — | — | — | — | — |
3,862,000,000
EUR
|
— |
3,683,000,000
EUR
|
521,000,000
EUR
|
3,162,000,000
EUR
|
— | — | — | — | — | — | — |
3,162,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income |
1,654,000,000
EUR
|
— |
1,504,000,000
EUR
|
150,000,000
EUR
|
— |
892,000,000
EUR
|
— | — | — | — | — | — |
612,000,000
EUR
|
— |
23,000,000
EUR
|
83,000,000
EUR
|
529,000,000
EUR
|
— | — | — | — | — | — | — |
106,000,000
EUR
|
423,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Comprehensive income |
2,740,000,000
EUR
|
— |
2,358,000,000
EUR
|
382,000,000
EUR
|
— |
892,000,000
EUR
|
— | — | — | — | — | — |
3,250,000,000
EUR
|
— |
3,706,000,000
EUR
|
438,000,000
EUR
|
3,691,000,000
EUR
|
— | — | — | — | — | — | — |
3,268,000,000
EUR
|
423,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
1,959,000,000
EUR
|
— |
1,398,000,000
EUR
|
561,000,000
EUR
|
— | — | — | — | — | — | — | — |
1,398,000,000
EUR
|
— |
2,037,000,000
EUR
|
640,000,000
EUR
|
1,397,000,000
EUR
|
— | — | — | — | — | — | — |
1,397,000,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
650,000,000
EUR
|
— |
640,000,000
EUR
|
10,000,000
EUR
|
— |
6,000,000
EUR
|
— | — | — | — | — | — |
646,000,000
EUR
|
— |
318,000,000
EUR
|
16,000,000
EUR
|
271,000,000
EUR
|
— | — | — | — | — | — | — |
302,000,000
EUR
|
31,000,000
EUR
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
254,000,000
EUR
|
— |
243,000,000
EUR
|
11,000,000
EUR
|
— | — | — | — | — | — | — | — |
243,000,000
EUR
|
— |
292,000,000
EUR
|
13,000,000
EUR
|
279,000,000
EUR
|
— | — | — | — | — | — | — |
279,000,000
EUR
|
— | — | — | — | — | — | — | — | — |