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 |
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 |
2022-01-01 to 2022-12-31 |
As at 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 |
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 |
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 |
28,801,000,000
NOK
|
— | — | — | — | — |
188,000,000
NOK
|
21,453,000,000
NOK
|
116,000,000
NOK
|
79,000,000
NOK
|
28,613,000,000
NOK
|
6,978,000,000
NOK
|
— |
13,000,000
NOK
|
— | — | — |
44,665,000,000
NOK
|
— |
6,943,000,000
NOK
|
— |
50,533,000,000
NOK
|
-
NOK
|
— |
50,332,000,000
NOK
|
— |
1,393,000,000
NOK
|
117,000,000
NOK
|
201,000,000
NOK
|
— | — | — |
3,966,000,000
NOK
|
5,675,000,000
NOK
|
1,333,000,000
NOK
|
6,911,000,000
NOK
|
10,178,000,000
NOK
|
117,000,000
NOK
|
517,000,000
NOK
|
15,853,000,000
NOK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
-
NOK
|
22,521,000,000
NOK
|
22,582,000,000
NOK
|
60,000,000
NOK
|
-
NOK
|
— | — | — | — | — | — |
22,582,000,000
NOK
|
— |
-
NOK
|
-
NOK
|
274,000,000
NOK
|
— |
-
NOK
|
— |
41,341,000,000
NOK
|
— | — |
-
NOK
|
— |
-
NOK
|
— | — | — |
-
NOK
|
41,066,000,000
NOK
|
41,341,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Other comprehensive income | — |
-
NOK
|
1,988,000,000
NOK
|
530,000,000
NOK
|
2,000,000
NOK
|
12,000,000
NOK
|
— | — | — | — | — | — |
1,989,000,000
NOK
|
— |
1,471,000,000
NOK
|
-
NOK
|
221,000,000
NOK
|
— |
1,332,000,000
NOK
|
— |
625,000,000
NOK
|
— | — |
1,910,000,000
NOK
|
— |
-
NOK
|
— | — | — |
-
NOK
|
403,000,000
NOK
|
47,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Comprehensive income | — |
-
NOK
|
20,533,000,000
NOK
|
22,051,000,000
NOK
|
59,000,000
NOK
|
12,000,000
NOK
|
— | — | — | — | — | — |
20,592,000,000
NOK
|
— |
1,471,000,000
NOK
|
-
NOK
|
53,000,000
NOK
|
— |
1,332,000,000
NOK
|
— |
40,716,000,000
NOK
|
— | — |
1,910,000,000
NOK
|
— |
-
NOK
|
— | — | — |
-
NOK
|
40,663,000,000
NOK
|
41,294,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — |
1,000,000
NOK
|
274,000,000
NOK
|
273,000,000
NOK
|
-
NOK
|
-
NOK
|
— | — | — | — | — | — |
274,000,000
NOK
|
— |
-
NOK
|
-
NOK
|
-
NOK
|
— |
-
NOK
|
— |
35,000,000
NOK
|
— | — |
-
NOK
|
— |
-
NOK
|
— | — | — |
-
NOK
|
35,000,000
NOK
|
34,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — |
-
NOK
|
-
NOK
|
5,000,000
NOK
|
5,000,000
NOK
|
-
NOK
|
— | — | — | — | — | — |
5,000,000
NOK
|
— |
-
NOK
|
-
NOK
|
88,000,000
NOK
|
— |
-
NOK
|
— |
89,000,000
NOK
|
— | — |
-
NOK
|
— |
-
NOK
|
— | — | — |
-
NOK
|
176,000,000
NOK
|
89,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
-
NOK
|
35,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
— | — | — | — | — | — |
35,000,000
NOK
|
— |
-
NOK
|
35,000,000
NOK
|
8,000,000
NOK
|
— |
-
NOK
|
— |
33,000,000
NOK
|
— | — |
-
NOK
|
— |
-
NOK
|
— | — | — |
33,000,000
NOK
|
25,000,000
NOK
|
-
NOK
|
— | — | — | — | — | — | — | — |