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 |
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 |
As at 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 |
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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||
| Equity | — |
11 098
NOK
|
5,000,000
NOK
|
547,000,000
NOK
|
26 010
NOK
|
— |
14 361
NOK
|
1 110
NOK
|
— |
9 711
NOK
|
0
NOK
|
3 540
NOK
|
— | — |
11 323
NOK
|
69,000,000
NOK
|
3 540
NOK
|
— |
599,000,000
NOK
|
13 850
NOK
|
— | — |
5,000,000
NOK
|
9 711
NOK
|
25 686
NOK
|
— |
438,000,000
NOK
|
— |
113,000,000
NOK
|
5,000,000
NOK
|
466,000,000
NOK
|
9 711
NOK
|
25 550
NOK
|
11 628
NOK
|
88,000,000
NOK
|
13 339
NOK
|
3 540
NOK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — |
2 053
NOK
|
— | — |
109,000,000
NOK
|
— | — | — |
2 162
NOK
|
1 679
NOK
|
— | — | — |
1 699
NOK
|
— | — | — | — | — | — | — |
7,000,000
NOK
|
— |
27,000,000
NOK
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income | — | — | — | — | — |
59,000,000
NOK
|
— | — | — | — | — | — |
59,000,000
NOK
|
172,000,000
NOK
|
— | — | — |
164,000,000
NOK
|
— | — | — | — | — | — | — |
8,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — | — | — | — | — |
1 994
NOK
|
— | — |
109,000,000
NOK
|
— | — | — |
2 103
NOK
|
1 851
NOK
|
— | — | — |
1 864
NOK
|
— | — | — | — | — | — | — |
15,000,000
NOK
|
— |
27,000,000
NOK
|
— | — | — | — | — | — | — | — | — |
| Increase through other contributions by owners, equity | — | — | — | — | — | — | — | — | — | — | — | — | — |
511,000,000
NOK
|
— | — | — | — | — | — |
511,000,000
NOK
|
511,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Decrease through other distributions to owners, equity | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 220
NOK
|
— | — | — |
2 220
NOK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
69,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — | — |
69,000,000
NOK
|
7,000,000
NOK
|
— | — | — |
52,000,000
NOK
|
— | — | — | — | — | — | — |
59,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — | — |