Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
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 |
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 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 | — |
9,937,000,000
DKK
|
— | — |
10,368,000,000
DKK
|
54,000,000
DKK
|
— |
10,371,000,000
DKK
|
3,000,000
DKK
|
— |
665,000,000
DKK
|
1,153,000,000
DKK
|
— | — | — |
8,246,000,000
DKK
|
6,000,000
DKK
|
4,000,000
DKK
|
8,136,000,000
DKK
|
1,025,000,000
DKK
|
— | — |
1,131,000,000
DKK
|
— |
8,130,000,000
DKK
|
— | — | — |
8,779,000,000
DKK
|
14,000,000
DKK
|
300,000,000
DKK
|
8,793,000,000
DKK
|
8,082,000,000
DKK
|
28,000,000
DKK
|
1,025,000,000
DKK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) |
1,000,000
DKK
|
— | — |
358,000,000
DKK
|
— | — | — | — | — | — | — | — |
357,000,000
DKK
|
358,000,000
DKK
|
205,000,000
DKK
|
— | — | — | — | — |
210,000,000
DKK
|
— | — | — | — | — |
5,000,000
DKK
|
210,000,000
DKK
|
— | — | — | — | — | — | — |
| Other comprehensive income |
1,000,000
DKK
|
— |
50,000,000
DKK
|
486,000,000
DKK
|
— | — |
466,000,000
DKK
|
— | — |
0
DKK
|
— | — |
487,000,000
DKK
|
70,000,000
DKK
|
833,000,000
DKK
|
— | — | — | — | — |
25,000,000
DKK
|
24,000,000
DKK
|
— |
0
DKK
|
— |
831,000,000
DKK
|
1,000,000
DKK
|
832,000,000
DKK
|
— | — | — | — | — | — | — |
| Comprehensive income |
0
DKK
|
— |
50,000,000
DKK
|
844,000,000
DKK
|
— | — |
466,000,000
DKK
|
— | — |
0
DKK
|
— | — |
844,000,000
DKK
|
428,000,000
DKK
|
628,000,000
DKK
|
— | — | — | — | — |
185,000,000
DKK
|
24,000,000
DKK
|
— |
0
DKK
|
— |
831,000,000
DKK
|
6,000,000
DKK
|
622,000,000
DKK
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — | — |
101,000,000
DKK
|
— | — | — | — | — | — | — | — |
101,000,000
DKK
|
101,000,000
DKK
|
14,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — | — |
14,000,000
DKK
|
0
DKK
|
— | — | — | — | — | — | — |
| Increase through other contributions by owners, equity |
3,000,000
DKK
|
— | — |
0
DKK
|
— | — | — | — | — | — | — | — |
3,000,000
DKK
|
— |
0
DKK
|
— | — | — | — | — | — | — | — | — | — | — | — |
0
DKK
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — |
15,000,000
DKK
|
— | — | — | — | — | — | — | — |
15,000,000
DKK
|
15,000,000
DKK
|
21,000,000
DKK
|
— | — | — | — | — |
21,000,000
DKK
|
— | — | — | — | — | — |
21,000,000
DKK
|
— | — | — | — | — | — | — |