Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||
| Profit (loss) |
141,000,000
NOK
|
141,000,000
NOK
|
1,996,000,000
NOK
|
2,137,000,000
NOK
|
1,996,000,000
NOK
|
88,000,000
NOK
|
88,000,000
NOK
|
2,030,000,000
NOK
|
2,118,000,000
NOK
|
2,030,000,000
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 | — | — | — |
11,000,000
NOK
|
— | — | — | — |
3,000,000
NOK
|
— |
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||
| Financial assets measured at fair value through other comprehensive income [abstract] | ||||||||||
| Gains (losses) on financial assets measured at fair value through other comprehensive income, before tax | — | — | — | — | — | — | — | — |
7,000,000
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 | — | — | — |
3,000,000
NOK
|
— | — | — | — |
1,000,000
NOK
|
— |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — | — | — | — | — | — |
2,000,000
NOK
|
— |
| Other comprehensive income | — | — |
8,000,000
NOK
|
8,000,000
NOK
|
8,000,000
NOK
|
— | — |
8,000,000
NOK
|
8,000,000
NOK
|
8,000,000
NOK
|
| Comprehensive income |
141,000,000
NOK
|
141,000,000
NOK
|
2,004,000,000
NOK
|
2,145,000,000
NOK
|
2,004,000,000
NOK
|
88,000,000
NOK
|
88,000,000
NOK
|
2,038,000,000
NOK
|
2,126,000,000
NOK
|
2,038,000,000
NOK
|
| Comprehensive income attributable to [abstract] | ||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
2,004,000,000
NOK
|
— | — | — | — |
2,038,000,000
NOK
|
— |