Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||
| Equity |
1 914,3
EUR
|
— | — | — | — | — |
4,203,000,000
EUR
|
205,000,000
EUR
|
1 247,4
EUR
|
32,000,000
EUR
|
2,293,000,000
EUR
|
1 893,7
EUR
|
— | — | — |
31,000,000
EUR
|
— | — |
1,003,000,000
EUR
|
1 373,9
EUR
|
— | — |
1 364,7
EUR
|
92,000,000
EUR
|
— |
1 053,4
EUR
|
2,141,000,000
EUR
|
— |
48,000,000
EUR
|
6,368,000,000
EUR
|
1,711,000,000
EUR
|
365,000,000
EUR
|
1,000,000
EUR
|
5,023,000,000
EUR
|
6,416,000,000
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — |
457,000,000
EUR
|
5,000,000
EUR
|
452,000,000
EUR
|
— | — | — | — | — | — |
452,000,000
EUR
|
— |
8,000,000
EUR
|
— | — |
410,000,000
EUR
|
— | — | — |
410,000,000
EUR
|
— | — | — | — | — |
402,000,000
EUR
|
— | — | — | — | — | — | — |
| Other comprehensive income | — | — | — |
2,631,000,000
EUR
|
110,000,000
EUR
|
2,521,000,000
EUR
|
— | — | — | — | — | — |
2,521,000,000
EUR
|
— |
62,000,000
EUR
|
— | — |
1,049,000,000
EUR
|
— | — | — |
1,049,000,000
EUR
|
— | — | — | — | — |
1,112,000,000
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income | — |
-
EUR
|
-
EUR
|
3,088,000,000
EUR
|
114,000,000
EUR
|
2,973,000,000
EUR
|
— | — | — | — | — | — |
2,973,000,000
EUR
|
-
EUR
|
55,000,000
EUR
|
— |
-
EUR
|
1,459,000,000
EUR
|
— | — |
-
EUR
|
1,459,000,000
EUR
|
— | — |
-
EUR
|
— | — |
1,514,000,000
EUR
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — | — |
107,000,000
EUR
|
— |
107,000,000
EUR
|
— | — | — | — | — | — |
107,000,000
EUR
|
— |
2,000,000
EUR
|
— | — |
0
EUR
|
— | — | — |
0
EUR
|
— | — | — | — | — |
2,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — |
1,000,000
EUR
|
— |
21,000,000
EUR
|
— |
19,000,000
EUR
|
— | — | — | — | — | — |
21,000,000
EUR
|
— | — | — |
30,000,000
EUR
|
121,000,000
EUR
|
— | — | — |
90,000,000
EUR
|
— | — | — | — | — |
121,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — | — |
0
EUR
|
0
EUR
|
13,000,000
EUR
|
13,000,000
EUR
|
— | — | — | — | — | — |
13,000,000
EUR
|
— |
16,000,000
EUR
|
— | — |
7,000,000
EUR
|
— | — | — |
7,000,000
EUR
|
— | — |
0
EUR
|
— | — |
22,000,000
EUR
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — |
79,000,000
EUR
|
— |
79,000,000
EUR
|
— | — | — | — | — | — |
79,000,000
EUR
|
— | — | — | — |
85,000,000
EUR
|
— | — | — |
85,000,000
EUR
|
— | — | — | — | — |
85,000,000
EUR
|
— | — | — | — | — | — | — |