Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||
| Profit (loss) |
26,000,000
NOK
|
922,000,000
NOK
|
— | — |
25 355
NOK
|
24 407
NOK
|
18 712
NOK
|
19 840
NOK
|
15,000,000
NOK
|
— |
1 143
NOK
|
— |
| Other comprehensive income [abstract] | ||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||||||||
| Other comprehensive income, before tax, gains (losses) on revaluation of property, plant and equipment, right-of-use assets and intangible assets | — | — | — | — |
212,000,000
NOK
|
— | — |
578,000,000
NOK
|
— | — | — | — |
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans | — | — | — | — |
183,000,000
NOK
|
183,000,000
NOK
|
324,000,000
NOK
|
324,000,000
NOK
|
— | — | — | — |
| Other comprehensive income, before tax, change in fair value of financial liability attributable to change in credit risk of liability | — | — |
29,000,000
NOK
|
— |
29,000,000
NOK
|
— | — |
33,000,000
NOK
|
— |
33,000,000
NOK
|
— | — |
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||
| Hedges of net investment in foreign operations [abstract] | ||||||||||||
| Other comprehensive income, before tax, hedges of net investments in foreign operations | — | — | — |
680,000,000
NOK
|
680,000,000
NOK
|
— | — |
3 246
NOK
|
— | — | — |
3 246
NOK
|
| Financial assets measured at fair value through other comprehensive income [abstract] | ||||||||||||
| Other comprehensive income, before tax, financial assets measured at fair value through other comprehensive income | — | — | — | — |
101,000,000
NOK
|
101,000,000
NOK
|
103,000,000
NOK
|
103,000,000
NOK
|
— | — | — | — |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — | — | — | — |
41,000,000
NOK
|
— | — |
72,000,000
NOK
|
— | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — | — | — | — |
148,000,000
NOK
|
— | — |
786,000,000
NOK
|
— | — | — | — |
| Other comprehensive income | — | — | — | — |
681,000,000
NOK
|
— | — |
943,000,000
NOK
|
— | — | — | — |
| Comprehensive income |
27,000,000
NOK
|
922,000,000
NOK
|
22,000,000
NOK
|
509,000,000
NOK
|
24 674
NOK
|
24 212
NOK
|
18 545
NOK
|
20 783
NOK
|
1 1
NOK
|
25,000,000
NOK
|
1 143
NOK
|
1 081
NOK
|