Statement Of Cash Flows [Abstract]
| Concept |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-01-01 |
As at 2019-01-01 |
|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||
| Cash flows from (used in) operating activities [abstract] | ||||||
| Cash flows from (used in) operations | — |
3 152,8
NOK
|
— |
3 192,4
NOK
|
— | — |
| Interest paid, classified as operating activities | — |
639,000,000
NOK
|
— |
1,021,000,000
NOK
|
— | — |
| Interest received, classified as operating activities | — |
9,181,000,000
NOK
|
— |
9,532,000,000
NOK
|
— | — |
| Cash flows from (used in) investing activities [abstract] | ||||||
| Cash flows from (used in) investing activities | — |
63,000,000
NOK
|
— |
257,000,000
NOK
|
— | — |
| Cash flows from (used in) financing activities [abstract] | ||||||
| Proceeds from issuing shares | — |
2,500,000,000
NOK
|
— | — | — | — |
| Cash flows from (used in) financing activities | — |
3 386,7
NOK
|
— |
3 049,9
NOK
|
— | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
2,276,000,000
NOK
|
— |
1,682,000,000
NOK
|
— | — |
| Cash and cash equivalents |
3,804,000,000
NOK
|
— |
1,528,000,000
NOK
|
— |
1,528,000,000
NOK
|
3,211,000,000
NOK
|