Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||
| Increase (decrease) through acquisition of subsidiary, equity |
10,000,000
NOK
|
-
NOK
|
-
NOK
|
10,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
14,000,000
NOK
|
-
NOK
|
14,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
— | — | — | — | — | — | — | — | — |
| Purchase of treasury shares |
34,000,000
NOK
|
-
NOK
|
34,000,000
NOK
|
-
NOK
|
34,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
66,000,000
NOK
|
66,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
66,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
27,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
27,000,000
NOK
|
27,000,000
NOK
|
| Sale or issue of treasury shares |
32,000,000
NOK
|
-
NOK
|
32,000,000
NOK
|
-
NOK
|
32,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
57,000,000
NOK
|
57,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
57,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
51,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
51,000,000
NOK
|
51,000,000
NOK
|