Statement Of Financial Position [Abstract]
| Concept |
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 |
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 |
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 2019-01-01 |
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 financial position [abstract] | ||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
2,009,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
2,200,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — | — |
312,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
312,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — |
4,194,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
4,376,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
1,248,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
1,246,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
946,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
1,001,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
20,456,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
23,532,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
1,025,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
1,025,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — |
8,246,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
8,082,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
8,136,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
8,779,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — |
6,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
14,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
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
|
1,025,000,000
DKK
|
28,000,000
DKK
|
8,082,000,000
DKK
|
8,793,000,000
DKK
|
14,000,000
DKK
|
300,000,000
DKK
|
8,779,000,000
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
|
53,000,000
DKK
|
1,025,000,000
DKK
|
7,738,000,000
DKK
|
8,266,000,000
DKK
|
10,000,000
DKK
|
8,256,000,000
DKK
|
454,000,000
DKK
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — | — |
200,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
352,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Liabilities included in disposal groups classified as held for sale | — | — | — | — | — | — |
91,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
0
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — |
12,326,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
14,739,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — |
20,456,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |
23,532,000,000
DKK
|
— | — | — | — | — | — | — | — | — | — |