Statement Of Changes In Equity [Abstract]
| Concept |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 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 |
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 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
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 |
As at 2022-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||
| Equity |
43,000,000
NOK
|
— | — | — | — |
379,000,000
NOK
|
750,000,000
NOK
|
— | — |
2 306
NOK
|
991,000,000
NOK
|
3 687
NOK
|
— |
125,000,000
NOK
|
— | — |
831,000,000
NOK
|
9 026
NOK
|
— |
8 680
NOK
|
13,000,000
NOK
|
— |
650,000,000
NOK
|
3 475
NOK
|
— |
2 205
NOK
|
125,000,000
NOK
|
359,000,000
NOK
|
— | — |
985,000,000
NOK
|
— | — |
894,000,000
NOK
|
— | — |
8 102
NOK
|
16,000,000
NOK
|
3 334
NOK
|
650,000,000
NOK
|
358,000,000
NOK
|
986,000,000
NOK
|
567,000,000
NOK
|
2 066
NOK
|
125,000,000
NOK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
— | — |
239,000,000
NOK
|
100,000,000
NOK
|
— | — | — |
0
NOK
|
— |
1 086
NOK
|
747,000,000
NOK
|
— | — |
1 055
NOK
|
— | — |
0
NOK
|
— | — |
0
NOK
|
— | — | — |
0
NOK
|
0
NOK
|
— |
142,000,000
NOK
|
0
NOK
|
— |
140,000,000
NOK
|
773,000,000
NOK
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income | — |
30,000,000
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
— | — |
4,000,000
NOK
|
3,000,000
NOK
|
— | — | — |
0
NOK
|
— |
23,000,000
NOK
|
0
NOK
|
— | — |
28,000,000
NOK
|
— | — |
29,000,000
NOK
|
— | — |
0
NOK
|
— | — | — |
0
NOK
|
0
NOK
|
— |
0
NOK
|
0
NOK
|
— |
1,000,000
NOK
|
0
NOK
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income | — |
30,000,000
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
— | — |
243,000,000
NOK
|
103,000,000
NOK
|
— | — | — |
0
NOK
|
— |
1 063
NOK
|
747,000,000
NOK
|
— | — |
1 027
NOK
|
— | — |
29,000,000
NOK
|
— | — |
0
NOK
|
— | — | — |
0
NOK
|
0
NOK
|
— |
142,000,000
NOK
|
0
NOK
|
— |
141,000,000
NOK
|
773,000,000
NOK
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — | — |
1,000,000
NOK
|
1,000,000
NOK
|
— | — | — |
5,000,000
NOK
|
2,000,000
NOK
|
— | — | — | — | — |
7,000,000
NOK
|
— | — | — |
3,000,000
NOK
|
— | — | — | — | — |
1,000,000
NOK
|
— | — | — |
1,000,000
NOK
|
— | — |
1,000,000
NOK
|
— | — |
2,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — |