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 |
As at 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 |
2022-01-01 to 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 |
As at 2021-12-31 |
2021-01-01 to 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 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||
| Equity |
2 995
NOK
|
— | — |
52,000,000
NOK
|
— | — |
22,000,000
NOK
|
419,000,000
NOK
|
2 581
NOK
|
67,000,000
NOK
|
— |
24,000,000
NOK
|
2 973
NOK
|
19,000,000
NOK
|
— | — | — | — | — |
2 581
NOK
|
— |
2 865
NOK
|
— |
25,000,000
NOK
|
110,000,000
NOK
|
— | — |
85,000,000
NOK
|
— |
2 848
NOK
|
— |
419,000,000
NOK
|
67,000,000
NOK
|
17,000,000
NOK
|
— | — |
2 514
NOK
|
25,000,000
NOK
|
2 853
NOK
|
67,000,000
NOK
|
46,000,000
NOK
|
54,000,000
NOK
|
419,000,000
NOK
|
2 877
NOK
|
156,000,000
NOK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
-
NOK
|
1 159
NOK
|
— |
1 092
NOK
|
67,000,000
NOK
|
— | — | — | — |
-
NOK
|
— | — | — |
-
NOK
|
1 092
NOK
|
-
NOK
|
-
NOK
|
71,000,000
NOK
|
— |
958,000,000
NOK
|
— |
-
NOK
|
— | — |
-
NOK
|
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— | — | — |
1 029
NOK
|
958,000,000
NOK
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
-
NOK
|
128,000,000
NOK
|
— |
-
NOK
|
2,000,000
NOK
|
— | — | — | — |
91,000,000
NOK
|
— | — | — |
33,000,000
NOK
|
125,000,000
NOK
|
-
NOK
|
1,000,000
NOK
|
3,000,000
NOK
|
— |
72,000,000
NOK
|
— |
-
NOK
|
— | — |
39,000,000
NOK
|
79,000,000
NOK
|
— |
46,000,000
NOK
|
— |
-
NOK
|
— | — | — |
75,000,000
NOK
|
-
NOK
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income | — | — |
1 287
NOK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
954,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
-
NOK
|
995,000,000
NOK
|
— |
945,000,000
NOK
|
50,000,000
NOK
|
— | — | — | — |
-
NOK
|
— | — | — |
-
NOK
|
945,000,000
NOK
|
-
NOK
|
-
NOK
|
60,000,000
NOK
|
— |
776,000,000
NOK
|
— |
-
NOK
|
— | — |
-
NOK
|
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— | — | — |
836,000,000
NOK
|
776,000,000
NOK
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
-
NOK
|
8,000,000
NOK
|
— |
-
NOK
|
8,000,000
NOK
|
— | — | — | — |
-
NOK
|
— | — | — |
-
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
22,000,000
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— | — |
-
NOK
|
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— | — | — |
22,000,000
NOK
|
-
NOK
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — |
-
NOK
|
133,000,000
NOK
|
— |
112,000,000
NOK
|
21,000,000
NOK
|
— | — | — | — |
-
NOK
|
— | — | — |
-
NOK
|
112,000,000
NOK
|
-
NOK
|
-
NOK
|
38,000,000
NOK
|
— |
76,000,000
NOK
|
— |
-
NOK
|
— | — |
-
NOK
|
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— | — | — |
114,000,000
NOK
|
76,000,000
NOK
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
-
NOK
|
31,000,000
NOK
|
— |
31,000,000
NOK
|
-
NOK
|
— | — | — | — |
-
NOK
|
— | — | — |
-
NOK
|
31,000,000
NOK
|
-
NOK
|
-
NOK
|
-
NOK
|
— |
38,000,000
NOK
|
— |
-
NOK
|
— | — |
-
NOK
|
-
NOK
|
— |
-
NOK
|
— |
-
NOK
|
— | — | — |
38,000,000
NOK
|
38,000,000
NOK
|
— | — | — | — | — | — | — | — | — |