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 |
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 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 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 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 |
8,803,000,000
NOK
|
— | — | — | — |
199,000,000
NOK
|
540,000,000
NOK
|
9,819,000,000
NOK
|
2,231,000,000
NOK
|
4,000,000
NOK
|
472,000,000
NOK
|
8,263,000,000
NOK
|
— | — | — | — | — |
493,000,000
NOK
|
— |
9,919,000,000
NOK
|
— |
95,000,000
NOK
|
— |
111,000,000
NOK
|
— |
9,271,000,000
NOK
|
— |
9,775,000,000
NOK
|
4,000,000
NOK
|
649,000,000
NOK
|
— | — |
708,000,000
NOK
|
673,000,000
NOK
|
8,794,000,000
NOK
|
4,000,000
NOK
|
40,000,000
NOK
|
9,720,000,000
NOK
|
9,467,000,000
NOK
|
261,000,000
NOK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
-
NOK
|
1,228,000,000
NOK
|
1,334,000,000
NOK
|
106,000,000
NOK
|
— | — | — | — | — | — | — |
-
NOK
|
1,334,000,000
NOK
|
-
NOK
|
-
NOK
|
68,000,000
NOK
|
— |
388,000,000
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— | — | — |
456,000,000
NOK
|
388,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Other comprehensive income | — |
-
NOK
|
986,000,000
NOK
|
-
NOK
|
300,000,000
NOK
|
— | — | — | — | — | — | — |
309,000,000
NOK
|
686,000,000
NOK
|
-
NOK
|
377,000,000
NOK
|
110,000,000
NOK
|
— |
207,000,000
NOK
|
— |
-
NOK
|
— |
55,000,000
NOK
|
— |
150,000,000
NOK
|
— |
-
NOK
|
— | — | — |
317,000,000
NOK
|
1,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Comprehensive income | — |
-
NOK
|
242,000,000
NOK
|
1,334,000,000
NOK
|
406,000,000
NOK
|
— | — | — | — | — | — | — |
309,000,000
NOK
|
648,000,000
NOK
|
-
NOK
|
377,000,000
NOK
|
178,000,000
NOK
|
— |
595,000,000
NOK
|
— |
-
NOK
|
— |
55,000,000
NOK
|
— |
150,000,000
NOK
|
— |
-
NOK
|
— | — | — |
773,000,000
NOK
|
390,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
-
NOK
|
929,000,000
NOK
|
404,000,000
NOK
|
526,000,000
NOK
|
— | — | — | — | — | — | — |
-
NOK
|
404,000,000
NOK
|
-
NOK
|
-
NOK
|
217,000,000
NOK
|
— |
173,000,000
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— | — | — |
390,000,000
NOK
|
173,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Increase through other contributions by owners, equity | — |
-
NOK
|
5,000,000
NOK
|
-
NOK
|
-
NOK
|
— | — | — | — | — | — | — |
-
NOK
|
5,000,000
NOK
|
5,000,000
NOK
|
-
NOK
|
-
NOK
|
— |
42,000,000
NOK
|
— |
42,000,000
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— | — | — |
42,000,000
NOK
|
-
NOK
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
-
NOK
|
39,000,000
NOK
|
-
NOK
|
-
NOK
|
— | — | — | — | — | — | — |
-
NOK
|
39,000,000
NOK
|
39,000,000
NOK
|
-
NOK
|
-
NOK
|
— |
12,000,000
NOK
|
— |
12,000,000
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— | — | — |
12,000,000
NOK
|
-
NOK
|
— | — | — | — | — | — | — | — |