Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
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 |
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 |
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 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||
| Equity | — |
7 206
EUR
|
188 645
EUR
|
— |
19 412
EUR
|
— | — | — |
195 851
EUR
|
11 071
EUR
|
206 922
EUR
|
125 219
EUR
|
5 898
EUR
|
49 912
EUR
|
195 851
EUR
|
— | — |
2 580
EUR
|
19 412
EUR
|
196 800
EUR
|
122 572
EUR
|
7 485
EUR
|
49 912
EUR
|
189 316
EUR
|
— | — |
9 542
EUR
|
206 342
EUR
|
196 800
EUR
|
— | — | — | — | — |
2 427
EUR
|
19 412
EUR
|
49 912
EUR
|
204 314
EUR
|
130 113
EUR
|
7 304
EUR
|
197 010
EUR
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
8 437
EUR
|
— | — |
1 396
EUR
|
— |
7 807
EUR
|
8 437
EUR
|
9 833
EUR
|
— | — | — | — | — | — | — |
631,000.000
EUR
|
7 807
EUR
|
— | — | — | — | — | — | — |
20 828
EUR
|
859,000.000
EUR
|
— | — | — |
21 687
EUR
|
20 828
EUR
|
21 687
EUR
|
23 162
EUR
|
1 476
EUR
|
— | — | — | — | — | — | — |
| Other comprehensive income |
1 199
EUR
|
— | — |
4,000.000
EUR
|
— |
1 197
EUR
|
1 199
EUR
|
1 203
EUR
|
— | — | — | — | — | — | — |
2,000.000
EUR
|
1 197
EUR
|
— | — | — | — | — | — | — |
711,000.000
EUR
|
25,000.000
EUR
|
— | — | — |
686,000.000
EUR
|
711,000.000
EUR
|
686,000.000
EUR
|
723,000.000
EUR
|
37,000.000
EUR
|
— | — | — | — | — | — | — |
| Comprehensive income |
7 238
EUR
|
— | — |
1 392
EUR
|
— |
6 610
EUR
|
7 238
EUR
|
8 630
EUR
|
— | — | — | — | — | — | — |
629,000.000
EUR
|
6 610
EUR
|
— | — | — | — | — | — | — |
20 117
EUR
|
884,000.000
EUR
|
— | — | — |
21 001
EUR
|
20 117
EUR
|
21 001
EUR
|
22 439
EUR
|
1 439
EUR
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
5 204
EUR
|
— | — | — | — |
4 307
EUR
|
— | — | — | — | — | — | — | — | — |
897,000.000
EUR
|
4 307
EUR
|
— | — | — | — | — | — | — |
3 667
EUR
|
743,000.000
EUR
|
— | — | — |
4 410
EUR
|
3 667
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
10,000.000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
10,000.000
EUR
|
— | — | — | — | — | — | — | — |
1 465
EUR
|
1 341
EUR
|
— | — | — |
2 805
EUR
|
1 465
EUR
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
314,000.000
EUR
|
— | — | — | — |
314,000.000
EUR
|
— | — | — | — | — | — | — | — | — | — |
314,000.000
EUR
|
— | — | — | — | — | — | — |
304,000.000
EUR
|
— | — | — | — |
304,000.000
EUR
|
304,000.000
EUR
|
— | — | — | — | — | — | — | — | — | — |