Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
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 |
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 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||
| Equity | — | — |
27 042
NOK
|
9 071
NOK
|
— | — | — |
12 215
NOK
|
— |
3 714
NOK
|
— |
101,000,000
NOK
|
1 839
NOK
|
18,000,000
NOK
|
120,000,000
NOK
|
— |
28 162
NOK
|
— | — | — | — | — | — |
12 840
NOK
|
3 714
NOK
|
9 996
NOK
|
18,000,000
NOK
|
101,000,000
NOK
|
1 433
NOK
|
96,000,000
NOK
|
— | — |
18,000,000
NOK
|
8 463
NOK
|
101,000,000
NOK
|
25 188
NOK
|
80,000,000
NOK
|
11 815
NOK
|
1 033
NOK
|
3 714
NOK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
0
NOK
|
344,000,000
NOK
|
— | — |
52,000,000
NOK
|
292,000,000
NOK
|
0
NOK
|
— |
0
NOK
|
— |
0
NOK
|
— | — | — | — |
0
NOK
|
— |
0
NOK
|
0
NOK
|
4 285
NOK
|
2 490
NOK
|
1 795
NOK
|
0
NOK
|
— | — | — | — | — | — | — |
0
NOK
|
0
NOK
|
— | — | — | — | — | — | — | — |
| Other comprehensive income |
0
NOK
|
446,000,000
NOK
|
— | — |
123,000,000
NOK
|
106,000,000
NOK
|
0
NOK
|
— |
406,000,000
NOK
|
— |
0
NOK
|
— | — | — | — |
24,000,000
NOK
|
— |
0
NOK
|
0
NOK
|
442,000,000
NOK
|
48,000,000
NOK
|
74,000,000
NOK
|
16,000,000
NOK
|
— | — | — | — | — | — | — |
0
NOK
|
400,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Comprehensive income |
0
NOK
|
790,000,000
NOK
|
— | — |
175,000,000
NOK
|
186,000,000
NOK
|
0
NOK
|
— |
406,000,000
NOK
|
— |
0
NOK
|
— | — | — | — |
24,000,000
NOK
|
— |
0
NOK
|
0
NOK
|
4 728
NOK
|
2 442
NOK
|
1 869
NOK
|
16,000,000
NOK
|
— | — | — | — | — | — | — |
0
NOK
|
400,000,000
NOK
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
0
NOK
|
1 905
NOK
|
— | — |
795,000,000
NOK
|
1 110
NOK
|
0
NOK
|
— |
0
NOK
|
— |
0
NOK
|
— | — | — | — |
0
NOK
|
— |
0
NOK
|
0
NOK
|
1 752
NOK
|
908,000,000
NOK
|
844,000,000
NOK
|
0
NOK
|
— | — | — | — | — | — | — |
0
NOK
|
0
NOK
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
0
NOK
|
6,000,000
NOK
|
— | — |
6,000,000
NOK
|
0
NOK
|
0
NOK
|
— |
0
NOK
|
— |
0
NOK
|
— | — | — | — |
0
NOK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) in equity |
0
NOK
|
1 121
NOK
|
— | — |
626,000,000
NOK
|
924,000,000
NOK
|
0
NOK
|
— |
406,000,000
NOK
|
— |
0
NOK
|
— | — | — | — |
24,000,000
NOK
|
— |
0
NOK
|
0
NOK
|
2 975
NOK
|
1 534
NOK
|
1 025
NOK
|
16,000,000
NOK
|
— | — | — | — | — | — | — |
0
NOK
|
400,000,000
NOK
|
— | — | — | — | — | — | — | — |