Analysis Of Income And Expense [Abstract]
| Concept |
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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||
| Revenue [abstract] | ||||||||||||||||
| Revenue from sale of goods | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Revenue from sale of electricity | — | — | — | — | — | — |
3,038,000,000
NOK
|
— | — | — |
2,771,000,000
NOK
|
— | — | — | — | — |
| Revenue | — | — | — | — | — | — |
3,803,000,000
NOK
|
— | — | — |
2,754,000,000
NOK
|
— | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||
| Gains (losses) on disposals of property, plant and equipment [abstract] | ||||||||||||||||
| Gains (losses) on disposals of property, plant and equipment | — | — | — | — | — | — |
9,000,000
NOK
|
— | — | — |
26,000,000
NOK
|
— | — | — | — | — |
| Finance income (cost) | — | — | — | — | — | — |
1,253,000,000
NOK
|
— | — | — |
1,530,000,000
NOK
|
— | — | — | — | — |
| Operating expense | — | — | — | — | — | — |
503,000,000
NOK
|
— | — | — |
423,000,000
NOK
|
— | — | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||||
| Classes of employee benefits expense [abstract] | ||||||||||||||||
| Employee benefits expense | — | — | — | — | — | — |
397,000,000
NOK
|
— | — | — |
262,000,000
NOK
|
— | — | — | — | — |
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||||||||||
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss | — | — | — | — | — | — |
892,000,000
NOK
|
— | — | — |
777,000,000
NOK
|
— | — | — | — | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — | — | — | — | — | — |
765,000,000
NOK
|
— | — | — |
16,000,000
NOK
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — | — | — | — |
108,000,000
NOK
|
— | — | — |
98,000,000
NOK
|
— | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income |
178,000,000
NOK
|
-
NOK
|
150,000,000
NOK
|
-
NOK
|
55,000,000
NOK
|
595,000,000
NOK
|
773,000,000
NOK
|
390,000,000
NOK
|
478,000,000
NOK
|
-
NOK
|
762,000,000
NOK
|
89,000,000
NOK
|
65,000,000
NOK
|
-
NOK
|
698,000,000
NOK
|
131,000,000
NOK
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — |
595,000,000
NOK
|
— | — | — |
698,000,000
NOK
|
— | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — |
178,000,000
NOK
|
— | — | — |
65,000,000
NOK
|
— | — | — | — | — |