Statement Of Changes In Equity [Abstract]
| Concept |
As at 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 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||
| Equity |
3 360,9
NOK
|
— | — | — | — |
6,280,000,000
NOK
|
3,269,000,000
NOK
|
2 726,6
NOK
|
6,343,000,000
NOK
|
9,636,000,000
NOK
|
6,343,000,000
NOK
|
8,081,000,000
NOK
|
— |
6,094,000,000
NOK
|
7,281,000,000
NOK
|
— |
2 929,7
NOK
|
2,257,000,000
NOK
|
2 320,4
NOK
|
— | — |
6,094,000,000
NOK
|
4,045,000,000
NOK
|
9,621,000,000
NOK
|
— | — |
4,687,000,000
NOK
|
7,281,000,000
NOK
|
4,687,000,000
NOK
|
9,606,000,000
NOK
|
2,257,000,000
NOK
|
2 070,3
NOK
|
1,560,000,000
NOK
|
2 539,0
NOK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
2,137,000,000
NOK
|
1,996,000,000
NOK
|
141,000,000
NOK
|
141,000,000
NOK
|
— | — | — | — | — | — | — |
1,996,000,000
NOK
|
— | — |
2,030,000,000
NOK
|
— | — | — |
88,000,000
NOK
|
88,000,000
NOK
|
— | — | — |
2,118,000,000
NOK
|
2,030,000,000
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 | — |
2,145,000,000
NOK
|
2,004,000,000
NOK
|
141,000,000
NOK
|
141,000,000
NOK
|
— | — | — | — | — | — | — |
2,004,000,000
NOK
|
— | — |
2,038,000,000
NOK
|
— | — | — |
88,000,000
NOK
|
88,000,000
NOK
|
— | — | — |
2,126,000,000
NOK
|
2,038,000,000
NOK
|
— | — | — | — | — | — | — | — |