Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
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 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
As at 2020-01-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
14,000,000
EUR
|
3 901
EUR
|
— |
3 086
EUR
|
438,000,000
EUR
|
— | — |
1 350
EUR
|
— | — |
5 638
EUR
|
— |
2 755
EUR
|
2 883
EUR
|
— |
166,000,000
EUR
|
— | — |
1 350
EUR
|
1 000
EUR
|
— |
2 856
EUR
|
— | — | — | — | — | — | — | — |
166,000,000
EUR
|
3 309
EUR
|
22,000,000
EUR
|
3 087
EUR
|
— | — |
6 165
EUR
|
— | — |
3 901
EUR
|
— | — | — | — |
1 350
EUR
|
28,000,000
EUR
|
3 901
EUR
|
2 539
EUR
|
1 947
EUR
|
28,000,000
EUR
|
3 488
EUR
|
166,000,000
EUR
|
1 350
EUR
|
166,000,000
EUR
|
2 521
EUR
|
8 304
EUR
|
3 901
EUR
|
1 919
EUR
|
8 256
EUR
|
3 488
EUR
|
4 769
EUR
|
4 816
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
133,000,000
EUR
|
— | — |
-
EUR
|
— | — |
530,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
530,000,000
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— |
397,000,000
EUR
|
664,000,000
EUR
|
— | — | — | — | — |
890,000,000
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— | — |
225,000,000
EUR
|
— | — |
890,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
83,000,000
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— |
1,000,000
EUR
|
1,000,000
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— |
82,000,000
EUR
|
1 373
EUR
|
— | — | — | — | — |
-
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — |
566,000,000
EUR
|
-
EUR
|
— | — |
807,000,000
EUR
|
— | — |
566,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
50,000,000
EUR
|
— | — |
-
EUR
|
— | — |
530,000,000
EUR
|
-
EUR
|
— |
1,000,000
EUR
|
529,000,000
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— |
479,000,000
EUR
|
2 037
EUR
|
— | — | — | — | — |
890,000,000
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — |
566,000,000
EUR
|
-
EUR
|
— | — |
581,000,000
EUR
|
— | — |
1 456
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
69,000,000
EUR
|
— | — |
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
-
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— |
69,000,000
EUR
|
80,000,000
EUR
|
— | — | — | — | — |
-
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— | — |
80,000,000
EUR
|
— | — |
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
37,000,000
EUR
|
— | — |
-
EUR
|
— | — |
25,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
25,000,000
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— |
62,000,000
EUR
|
37,000,000
EUR
|
— | — |
-
EUR
|
— |
-
EUR
|
15,000,000
EUR
|
-
EUR
|
-
EUR
|
28,000,000
EUR
|
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— |
19,000,000
EUR
|
22,000,000
EUR
|
— |
47,000,000
EUR
|
15,000,000
EUR
|
47,000,000
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
-
EUR
|
— | — |
-
EUR
|
— | — |
8,000,000
EUR
|
8,000,000
EUR
|
— |
-
EUR
|
-
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— |
-
EUR
|
1,000,000
EUR
|
— | — | — | — | — |
7,000,000
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
6,000,000
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— | — |
-
EUR
|
— | — |
1,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
3,000,000
EUR
|
— | — |
-
EUR
|
— | — |
21,000,000
EUR
|
-
EUR
|
— |
-
EUR
|
21,000,000
EUR
|
— |
-
EUR
|
— | — |
-
EUR
|
— |
25,000,000
EUR
|
38,000,000
EUR
|
— | — | — | — | — |
38,000,000
EUR
|
— | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — |
-
EUR
|
-
EUR
|
— | — |
1,000,000
EUR
|
— | — |
38,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |