Statement Of Changes In Equity [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 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 |
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 |
As at 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 |
2020-01-01 to 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 |
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 |
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 |
As at 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 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
17,000,000
EUR
|
13 880
EUR
|
98,000,000
EUR
|
484,000,000
EUR
|
— | — |
579,000,000
EUR
|
46 367
EUR
|
— | — | — |
12,000,000
EUR
|
— |
15 372
EUR
|
30 995
EUR
|
194,000,000
EUR
|
361,000,000
EUR
|
‑
EUR
|
— | — | — |
471,000,000
EUR
|
10 740
EUR
|
24 974
EUR
|
— |
11 270
EUR
|
361,000,000
EUR
|
— | — |
86,000,000
EUR
|
17,000,000
EUR
|
— | — |
194,000,000
EUR
|
— |
36 244
EUR
|
278,000,000
EUR
|
116,000,000
EUR
|
— |
‑
EUR
|
— |
471,000,000
EUR
|
361,000,000
EUR
|
35 717
EUR
|
10 880
EUR
|
24 837
EUR
|
— | — | — | — |
194,000,000
EUR
|
17,000,000
EUR
|
— | — | — | — | — | — |
43,000,000
EUR
|
362,000,000
EUR
|
‑
EUR
|
81,000,000
EUR
|
9 632
EUR
|
34,000,000
EUR
|
35,000,000
EUR
|
36 343
EUR
|
194,000,000
EUR
|
14 228
EUR
|
13 090
EUR
|
243,000,000
EUR
|
‑
EUR
|
53,000,000
EUR
|
462,000,000
EUR
|
22 115
EUR
|
361,000,000
EUR
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
7 718
EUR
|
— | — | — | — | — |
4 946
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
12 664
EUR
|
4 946
EUR
|
4 970
EUR
|
— | — | — | — | — | — |
1 933
EUR
|
— | — | — | — | — | — | — | — | — | — |
3 037
EUR
|
— |
1 933
EUR
|
— | — | — | — | — |
4 872
EUR
|
2 938
EUR
|
7 810
EUR
|
— | — | — |
2 938
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
1 462
EUR
|
— | — | — | — |
12,000,000
EUR
|
961,000,000
EUR
|
— | — |
74,000,000
EUR
|
857,000,000
EUR
|
18,000,000
EUR
|
— |
-
EUR
|
— | — | — | — | — |
2 423
EUR
|
— |
1 829
EUR
|
— | — | — |
5,000,000
EUR
|
— | — |
-
EUR
|
— | — | — |
73,000,000
EUR
|
640,000,000
EUR
|
— |
-
EUR
|
— | — | — |
1 111
EUR
|
— |
718,000,000
EUR
|
— | — | — | — | — |
147,000,000
EUR
|
— |
240,000,000
EUR
|
— | — | — |
93,000,000
EUR
|
119,000,000
EUR
|
— |
10,000,000
EUR
|
46,000,000
EUR
|
10,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
9 180
EUR
|
— | — | — | — |
12,000,000
EUR
|
5 907
EUR
|
— | — |
74,000,000
EUR
|
857,000,000
EUR
|
18,000,000
EUR
|
— |
‑
EUR
|
— | — | — | — | — |
15 087
EUR
|
4 946
EUR
|
3 141
EUR
|
— | — | — |
5,000,000
EUR
|
— | — |
1 933
EUR
|
‑
EUR
|
— | — |
73,000,000
EUR
|
640,000,000
EUR
|
— |
‑
EUR
|
— | — | — |
1 926
EUR
|
— |
1 215
EUR
|
— | — | — | — | — |
5 019
EUR
|
2 938
EUR
|
8 050
EUR
|
— | — | — |
3 031
EUR
|
119,000,000
EUR
|
‑
EUR
|
10,000,000
EUR
|
46,000,000
EUR
|
10,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
2 498
EUR
|
— | — | — | — | — |
1 263
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
3 761
EUR
|
1 263
EUR
|
2 563
EUR
|
— | — | — | — | — | — |
830,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
1 733
EUR
|
— |
830,000,000
EUR
|
— | — | — | — | — |
2 263
EUR
|
6 386
EUR
|
8 649
EUR
|
— | — | — |
6 386
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
-
EUR
|
— | — | — | — | — |
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
-
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — |
-
EUR
|
— | — | — | — | — | — | — | — | — | — |
-
EUR
|
— |
-
EUR
|
— | — | — | — | — |
-
EUR
|
12,000,000
EUR
|
6,000,000
EUR
|
17,000,000
EUR
|
— | — |
6,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
947,000,000
EUR
|
— | — | — | — |
1,000,000
EUR
|
567,000,000
EUR
|
— | — |
-
EUR
|
-
EUR
|
-
EUR
|
— |
-
EUR
|
— | — | — | — | — |
1 514
EUR
|
568,000,000
EUR
|
117,000,000
EUR
|
— | — | — |
-
EUR
|
— | — |
88,000,000
EUR
|
-
EUR
|
— | — |
-
EUR
|
-
EUR
|
— |
-
EUR
|
— | — | — |
29,000,000
EUR
|
— |
88,000,000
EUR
|
— | — | — | — | — |
9,000,000
EUR
|
30,000,000
EUR
|
21,000,000
EUR
|
— | — | — |
30,000,000
EUR
|
-
EUR
|
-
EUR
|
1,000,000
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
80,000,000
EUR
|
— | — | — | — | — |
52,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
132,000,000
EUR
|
52,000,000
EUR
|
62,000,000
EUR
|
— | — | — | — | — | — |
26,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
36,000,000
EUR
|
— |
26,000,000
EUR
|
— | — | — | — | — |
42,000,000
EUR
|
34,000,000
EUR
|
76,000,000
EUR
|
— | — | — |
34,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |