Statement Of Cash Flows [Abstract]
| Concept |
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 |
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 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||||
| Profit (loss) |
71,000,000
NOK
|
— |
958,000,000
NOK
|
1 029
NOK
|
958,000,000
NOK
|
2 108
NOK
|
— |
2 189
NOK
|
81,000,000
NOK
|
2 108
NOK
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||||
| Adjustments for decrease (increase) in trade accounts receivable | — | — | — |
868,000,000
NOK
|
— | — | — |
473,000,000
NOK
|
— | — | — |
| Adjustments for depreciation and amortisation expense | — | — | — |
584,000,000
NOK
|
— | — | — |
613,000,000
NOK
|
— | — | — |
| Adjustments for share-based payments | — | — | — |
38,000,000
NOK
|
— | — | — |
4,000,000
NOK
|
— | — | — |
| Other adjustments for non-cash items | — | — | — |
43,000,000
NOK
|
— | — | — |
107,000,000
NOK
|
— | — | — |
| Adjustments for losses (gains) on disposal of non-current assets | — | — | — |
118,000,000
NOK
|
— | — | — |
34,000,000
NOK
|
— | — | — |
| Cash flows from (used in) operations | — | — | — |
2 046
NOK
|
— | — | — |
2 309
NOK
|
— | — | — |
| Income taxes paid (refund), classified as operating activities | — | — | — |
128,000,000
NOK
|
— | — | — |
81,000,000
NOK
|
— | — | — |
| Cash flows from (used in) operating activities | — | — | — |
2 194
NOK
|
— | — | — |
2 270
NOK
|
— | — | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — | — |
135,000,000
NOK
|
— | — | — |
6 968
NOK
|
— | — | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — |
75,000,000
NOK
|
— | — | — |
89,000,000
NOK
|
— | — | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — | — |
278,000,000
NOK
|
— | — | — |
136,000,000
NOK
|
— | — | — |
| Purchase of property, plant and equipment, classified as investing activities | — | — | — |
751,000,000
NOK
|
— | — | — |
819,000,000
NOK
|
— | — | — |
| Interest received, classified as investing activities | — | — | — |
24,000,000
NOK
|
— | — | — |
15,000,000
NOK
|
— | — | — |
| Other inflows (outflows) of cash, classified as investing activities | — | — | — |
108,000,000
NOK
|
— | — | — |
7,000,000
NOK
|
— | — | — |
| Cash flows from (used in) investing activities | — | — | — |
282,000,000
NOK
|
— | — | — |
5 664
NOK
|
— | — | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||||
| Proceeds from borrowings, classified as financing activities | — | — | — |
-
NOK
|
— | — | — |
64,000,000
NOK
|
— | — | — |
| Payments of lease liabilities, classified as financing activities | — | — | — |
330,000,000
NOK
|
— | — | — |
302,000,000
NOK
|
— | — | — |
| Interest paid, classified as financing activities | — | — | — |
52,000,000
NOK
|
— | — | — |
85,000,000
NOK
|
— | — | — |
| Cash flows from (used in) financing activities | — | — | — |
1 314
NOK
|
— | — | — |
5 039
NOK
|
— | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — |
598,000,000
NOK
|
— | — | — |
2 895
NOK
|
— | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — |
3,000,000
NOK
|
— | — | — |
7,000,000
NOK
|
— | — | — |
| Cash and cash equivalents | — |
3 814
NOK
|
— | — | — | — |
3 219
NOK
|
— | — | — |
241,000,000
NOK
|