Statement Of Changes In Equity [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 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 |
2021-01-01 to 2021-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||
| Equity |
2 377
NOK
|
— | — |
1 512
NOK
|
781,000,000
NOK
|
65,000,000
NOK
|
20,000,000
NOK
|
617,000,000
NOK
|
1 836
NOK
|
1 196
NOK
|
34,000,000
NOK
|
56,000,000
NOK
|
— | — |
313,000,000
NOK
|
48,000,000
NOK
|
10,000,000
NOK
|
892,000,000
NOK
|
1 243
NOK
|
| Changes in equity [abstract] | |||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||
| Profit (loss) | — |
163,000,000
NOK
|
163,000,000
NOK
|
— | — | — | — | — | — | — | — | — |
305,000,000
NOK
|
305,000,000
NOK
|
— | — | — | — | — |
| Comprehensive income | — |
217,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — |
281,000,000
NOK
|
— | — | — | — | — | — |