Statement Of Comprehensive Income [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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) |
315,000,000
NOK
|
44,000,000
NOK
|
1,000,000
NOK
|
1,000,000
NOK
|
128,000,000
NOK
|
20,000,000
NOK
|
189,000,000
NOK
|
22,000,000
NOK
|
184,000,000
NOK
|
334,000,000
NOK
|
14,000,000
NOK
|
2,000,000
NOK
|
5,000,000
NOK
|
13,000,000
NOK
|
15,000,000
NOK
|
128,000,000
NOK
|
| Other comprehensive income [abstract] | ||||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||||||||||||
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans |
4,000,000
NOK
|
— | — | — | — | — | — | — | — |
12,000,000
NOK
|
— | — | — | — | — | — |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||||||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income |
1,000,000
NOK
|
— | — | — | — | — | — | — | — |
3,000,000
NOK
|
— | — | — | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||||||
| Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income |
0
NOK
|
— | — | — | — | — | — | — | — |
1,000,000
NOK
|
— | — | — | — | — | — |
| Other comprehensive income |
2,000,000
NOK
|
1,000,000
NOK
|
3,000,000
NOK
|
— | — | — | — | — | — |
5,000,000
NOK
|
— | — |
5,000,000
NOK
|
0
NOK
|
— | — |
| Comprehensive income |
312,000,000
NOK
|
— | — | — | — | — | — | — | — |
340,000,000
NOK
|
— | — | — | — | — | — |