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 |
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 |
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 |
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 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 |
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 |
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 |
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 |
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 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 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 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
0
EUR
|
14 272
EUR
|
318,000,000
EUR
|
— |
1 500
EUR
|
— | — |
23 077
EUR
|
— |
1 108
EUR
|
74,000,000
EUR
|
79,000,000
EUR
|
— |
496,000,000
EUR
|
642,000,000
EUR
|
110,000,000
EUR
|
1,000,000
EUR
|
246,000,000
EUR
|
21 577
EUR
|
5 528
EUR
|
— |
0
EUR
|
1 460
EUR
|
— | — |
13 146
EUR
|
— |
88,000,000
EUR
|
0
EUR
|
1 294
EUR
|
20 030
EUR
|
1 459
EUR
|
— | — |
1,000,000
EUR
|
45,000,000
EUR
|
1 500
EUR
|
163,000,000
EUR
|
1 130
EUR
|
325,000,000
EUR
|
1,000,000
EUR
|
— |
5 514
EUR
|
382,000,000
EUR
|
— |
15,000,000
EUR
|
21 530
EUR
|
— | — | — | — |
37,000,000
EUR
|
0
EUR
|
0
EUR
|
92,000,000
EUR
|
20 222
EUR
|
5 498
EUR
|
32,000,000
EUR
|
11 732
EUR
|
4,000,000
EUR
|
2,000,000
EUR
|
1 331
EUR
|
1 500
EUR
|
992,000,000
EUR
|
350,000,000
EUR
|
89,000,000
EUR
|
1 458
EUR
|
18 722
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
0
EUR
|
— | — | — |
0
EUR
|
— |
0
EUR
|
2 614
EUR
|
— |
0
EUR
|
— | — | — |
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
2 614
EUR
|
2 614
EUR
|
— |
1 440
EUR
|
— | — | — | — | — |
0
EUR
|
1 440
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
0
EUR
|
1 440
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
0
EUR
|
— | — | — |
0
EUR
|
— |
403,000,000
EUR
|
401,000,000
EUR
|
— |
0
EUR
|
— | — | — |
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
401,000,000
EUR
|
2,000,000
EUR
|
— |
102,000,000
EUR
|
— | — | — | — | — |
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
102,000,000
EUR
|
— | — |
0
EUR
|
0
EUR
|
0
EUR
|
102,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
0
EUR
|
— | — | — |
0
EUR
|
— |
403,000,000
EUR
|
3 015
EUR
|
— |
0
EUR
|
— | — | — |
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
3 015
EUR
|
2 612
EUR
|
— |
1 339
EUR
|
— | — | — | — | — |
0
EUR
|
1 440
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
102,000,000
EUR
|
— | — |
0
EUR
|
0
EUR
|
0
EUR
|
1 339
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Issue of equity |
0
EUR
|
— | — | — |
0
EUR
|
— |
0
EUR
|
14,000,000
EUR
|
— |
13,000,000
EUR
|
— | — | — |
0
EUR
|
— | — | — | — | — | — | — |
1,000,000
EUR
|
— | — |
14,000,000
EUR
|
0
EUR
|
— |
18,000,000
EUR
|
— | — | — | — | — |
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — |
1,000,000
EUR
|
0
EUR
|
17,000,000
EUR
|
18,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
0
EUR
|
— | — | — |
0
EUR
|
— |
0
EUR
|
1 433
EUR
|
— |
0
EUR
|
— | — | — |
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
1 433
EUR
|
1 433
EUR
|
— |
0
EUR
|
— | — | — | — | — |
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
0
EUR
|
— | — | — |
0
EUR
|
— |
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — |
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
— |
0
EUR
|
— | — | — | — | — |
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
0
EUR
|
— | — |
0
EUR
|
0
EUR
|
0
EUR
|
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) in equity |
0
EUR
|
— | — | — |
1,000,000
EUR
|
— |
406,000,000
EUR
|
1 547
EUR
|
— |
13,000,000
EUR
|
— | — | — |
0
EUR
|
— | — | — | — | — | — | — |
1,000,000
EUR
|
— | — |
1 547
EUR
|
1 126
EUR
|
— |
1 308
EUR
|
— | — | — | — | — |
1,000,000
EUR
|
1 414
EUR
|
— | — | — | — | — | — | — |
0
EUR
|
— | — |
125,000,000
EUR
|
— | — |
1,000,000
EUR
|
0
EUR
|
17,000,000
EUR
|
1 308
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |