Statement Of Comprehensive Income [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | |||||||
| Profit (loss) |
109,000,000
NOK
|
2 162
NOK
|
2 053
NOK
|
1 699
NOK
|
1 679
NOK
|
7,000,000
NOK
|
27,000,000
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 revaluation of property, plant and equipment, right-of-use assets and intangible assets | — |
139,000,000
NOK
|
— | — |
83,000,000
NOK
|
— | — |
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans | — |
124,000,000
NOK
|
— | — |
88,000,000
NOK
|
— | — |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | |||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — |
10,000,000
NOK
|
— | — |
10,000,000
NOK
|
— | — |
| Other comprehensive income | — |
59,000,000
NOK
|
59,000,000
NOK
|
164,000,000
NOK
|
172,000,000
NOK
|
8,000,000
NOK
|
— |
| Comprehensive income |
109,000,000
NOK
|
2 103
NOK
|
1 994
NOK
|
1 864
NOK
|
1 851
NOK
|
15,000,000
NOK
|
27,000,000
NOK
|
| Comprehensive income attributable to [abstract] | |||||||
| Comprehensive income, attributable to owners of parent | — |
2 103
NOK
|
— | — |
1 844
NOK
|
— | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — |
8,000,000
NOK
|
— | — |