Statement Of Changes In Equity [Abstract]
| Concept |
2021-01-01 to 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 |
2021-01-01 to 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 2021-12-31 |
As at 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 |
2021-01-01 to 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 |
As at 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 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — | — |
987,000,000
NOK
|
357,000,000
NOK
|
— | — |
357,000,000
NOK
|
— | — | — | — | — |
599,000,000
NOK
|
599,000,000
NOK
|
3 094
NOK
|
125,000,000
NOK
|
1 831
NOK
|
— | — | — | — | — |
577,000,000
NOK
|
987,000,000
NOK
|
7 570
NOK
|
318,000,000
NOK
|
1 831
NOK
|
3 094
NOK
|
— |
125,000,000
NOK
|
7 311
NOK
|
— | — | — | — | — | — | — |
599,000,000
NOK
|
599,000,000
NOK
|
— |
2 939
NOK
|
1 679
NOK
|
2 939
NOK
|
1 679
NOK
|
125,000,000
NOK
|
268,000,000
NOK
|
125,000,000
NOK
|
— | — |
357,000,000
NOK
|
7 208
NOK
|
987,000,000
NOK
|
— | — | — | — |
987,000,000
NOK
|
— |
522,000,000
NOK
|
— | — |
6 954
NOK
|
357,000,000
NOK
|
986,000,000
NOK
|
125,000,000
NOK
|
357,000,000
NOK
|
6 970
NOK
|
279,000,000
NOK
|
357,000,000
NOK
|
986,000,000
NOK
|
525,000,000
NOK
|
599,000,000
NOK
|
599,000,000
NOK
|
6 724
NOK
|
1 559
NOK
|
2 819
NOK
|
1 559
NOK
|
2 819
NOK
|
125,000,000
NOK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
0
NOK
|
0
NOK
|
— | — |
344,000,000
NOK
|
0
NOK
|
— |
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
642,000,000
NOK
|
— | — | — | — | — |
148,000,000
NOK
|
148,000,000
NOK
|
150,000,000
NOK
|
341,000,000
NOK
|
150,000,000
NOK
|
— | — | — | — | — | — |
639,000,000
NOK
|
— | — |
0
NOK
|
134,000,000
NOK
|
134,000,000
NOK
|
0
NOK
|
295,000,000
NOK
|
0
NOK
|
0
NOK
|
— | — |
567,000,000
NOK
|
— | — | — | — | — | — | — |
561,000,000
NOK
|
301,000,000
NOK
|
— | — | — |
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
— |
0
NOK
|
— |
132,000,000
NOK
|
132,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
0
NOK
|
0
NOK
|
— | — |
2,000,000
NOK
|
0
NOK
|
— |
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
11,000,000
NOK
|
— | — | — | — | — |
4,000,000
NOK
|
4,000,000
NOK
|
5,000,000
NOK
|
0
NOK
|
5,000,000
NOK
|
— | — | — | — | — | — |
9,000,000
NOK
|
— | — |
0
NOK
|
14,000,000
NOK
|
14,000,000
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
— | — |
25,000,000
NOK
|
— | — | — | — | — | — | — |
27,000,000
NOK
|
2,000,000
NOK
|
— | — | — |
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
— |
0
NOK
|
— |
13,000,000
NOK
|
13,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
0
NOK
|
0
NOK
|
— | — |
346,000,000
NOK
|
0
NOK
|
— |
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
653,000,000
NOK
|
— | — | — | — | — |
152,000,000
NOK
|
152,000,000
NOK
|
155,000,000
NOK
|
341,000,000
NOK
|
155,000,000
NOK
|
— | — | — | — | — | — |
648,000,000
NOK
|
— | — |
0
NOK
|
120,000,000
NOK
|
120,000,000
NOK
|
0
NOK
|
295,000,000
NOK
|
0
NOK
|
0
NOK
|
— | — |
542,000,000
NOK
|
— | — | — | — | — | — | — |
534,000,000
NOK
|
303,000,000
NOK
|
— | — | — |
0
NOK
|
0
NOK
|
0
NOK
|
0
NOK
|
— |
0
NOK
|
— |
119,000,000
NOK
|
119,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — | — | — | — | — | — | — | — | — | — | — |
0
NOK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
0
NOK
|
— | — | — | — | — | — | — | — |
1,000,000
NOK
|
— | — |
2,000,000
NOK
|
— | — | — | — | — | — | — |
2,000,000
NOK
|
— | — | — | — | — | — | — | — | — |
1,000,000
NOK
|
— |
1,000,000
NOK
|
1,000,000
NOK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |