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 |
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 |
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 |
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 |
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 | — |
191,000,000
DKK
|
9,035,000,000
DKK
|
— | — |
7,789,000,000
DKK
|
— |
7,583,000,000
DKK
|
206,000,000
DKK
|
— |
1,446,000,000
DKK
|
185,000,000
DKK
|
— | — | — |
8,124,000,000
DKK
|
29,000,000
DKK
|
— |
185,000,000
DKK
|
6,516,000,000
DKK
|
— |
191,000,000
DKK
|
1,602,000,000
DKK
|
— |
6,545,000,000
DKK
|
— | — | — |
12,523,000,000
DKK
|
24,000,000
DKK
|
892,000,000
DKK
|
12,547,000,000
DKK
|
13,421,000,000
DKK
|
191,000,000
DKK
|
185,000,000
DKK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) |
22,000,000
DKK
|
— | — |
-
DKK
|
615,000,000
DKK
|
— |
-
DKK
|
— | — |
-
DKK
|
— | — |
637,000,000
DKK
|
615,000,000
DKK
|
5,195,000,000
DKK
|
— | — |
-
DKK
|
— | — |
5,205,000,000
DKK
|
— | — |
-
DKK
|
— |
-
DKK
|
10,000,000
DKK
|
5,205,000,000
DKK
|
— | — | — | — | — | — | — |
| Other comprehensive income |
15,000,000
DKK
|
— | — |
-
DKK
|
210,000,000
DKK
|
— |
156,000,000
DKK
|
— | — |
-
DKK
|
— | — |
195,000,000
DKK
|
54,000,000
DKK
|
834,000,000
DKK
|
— | — |
-
DKK
|
— | — |
119,000,000
DKK
|
— | — |
-
DKK
|
— |
710,000,000
DKK
|
5,000,000
DKK
|
829,000,000
DKK
|
— | — | — | — | — | — | — |
| Comprehensive income |
7,000,000
DKK
|
— | — |
-
DKK
|
825,000,000
DKK
|
— |
156,000,000
DKK
|
— | — |
-
DKK
|
— | — |
832,000,000
DKK
|
669,000,000
DKK
|
6,029,000,000
DKK
|
— | — |
-
DKK
|
— | — |
5,324,000,000
DKK
|
— | — |
-
DKK
|
— |
710,000,000
DKK
|
5,000,000
DKK
|
6,034,000,000
DKK
|
— | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
170,000,000
DKK
|
— | — | — |
180,000,000
DKK
|
— |
-
DKK
|
— | — | — | — | — |
350,000,000
DKK
|
180,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
-
DKK
|
— | — |
-
DKK
|
62,000,000
DKK
|
— |
-
DKK
|
— | — |
-
DKK
|
— | — |
62,000,000
DKK
|
62,000,000
DKK
|
27,000,000
DKK
|
— | — | — | — | — |
27,000,000
DKK
|
— | — | — | — | — | — |
27,000,000
DKK
|
— | — | — | — | — | — | — |
| Increase (decrease) in equity |
177,000,000
DKK
|
— | — |
-
DKK
|
1,067,000,000
DKK
|
— |
156,000,000
DKK
|
— | — |
-
DKK
|
— | — |
1,244,000,000
DKK
|
911,000,000
DKK
|
6,002,000,000
DKK
|
— | — |
-
DKK
|
— | — |
5,297,000,000
DKK
|
— | — |
-
DKK
|
— |
710,000,000
DKK
|
5,000,000
DKK
|
6,007,000,000
DKK
|
— | — | — | — | — | — | — |