Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2022-01-01 |
As at 2021-12-31 |
As at 2021-01-01 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Property, plant and equipment [abstract] | ||||
| Property, plant and equipment |
326,000,000
NOK
|
— |
277,000,000
NOK
|
— |
| Intangible assets and goodwill [abstract] | ||||
| Goodwill |
458,000,000
NOK
|
— |
34,000,000
NOK
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | ||||
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements |
0
NOK
|
— |
0
NOK
|
— |
| Investments accounted for using equity method [abstract] | ||||
| Investments accounted for using equity method |
1 452
NOK
|
— |
1 141
NOK
|
— |
| Cash and cash equivalents [abstract] | ||||
| Cash equivalents [abstract] | ||||
| Short-term deposits, classified as cash equivalents |
2 499
NOK
|
— |
1 698
NOK
|
— |
| Cash equivalents |
108,000,000
NOK
|
— |
114,000,000
NOK
|
— |
| Other cash and cash equivalents |
2 499
NOK
|
— |
1 698
NOK
|
— |
| Cash and cash equivalents |
2 607
NOK
|
1 812
NOK
|
1 812
NOK
|
870,000,000
NOK
|
| Miscellaneous current assets [abstract] | ||||
| Current investments | — | — | — | — |
| Short-term deposits, not classified as cash equivalents |
605,000,000
NOK
|
— |
455,000,000
NOK
|
— |
| Miscellaneous assets [abstract] | ||||
| Equity instruments held |
2 617
NOK
|
— |
2 203
NOK
|
— |
| Debt instruments held [abstract] | ||||
| Debt instruments held |
8 430
NOK
|
— |
6 146
NOK
|
— |
| Loans and advances | — | — | — | — |
| Loans and advances to customers |
72 546
NOK
|
— |
62 542
NOK
|
— |
| Cash and bank balances at central banks |
108,000,000
NOK
|
— |
114,000,000
NOK
|
— |
| Other assets |
467,000,000
NOK
|
— |
279,000,000
NOK
|
— |
| Miscellaneous current liabilities [abstract] | ||||
| Current deposits from customers |
55 216
NOK
|
— |
46 212
NOK
|
— |
| Miscellaneous liabilities [abstract] | ||||
| Deposit liabilities | — | — | — | — |
| Deposits from banks |
0
NOK
|
— |
150,000,000
NOK
|
— |
| Subordinated liabilities [abstract] | ||||
| Subordinated liabilities |
749,000,000
NOK
|
— |
651,000,000
NOK
|
— |
| Debt instruments issued |
19 570
NOK
|
— |
16 913
NOK
|
— |
| Other liabilities |
919,000,000
NOK
|
— |
664,000,000
NOK
|
— |
| Issued capital [abstract] | ||||
| Issued capital |
2 101
NOK
|
— |
1 778
NOK
|
— |
| Accumulated other comprehensive income [abstract] | ||||
| Reserve of gains and losses from investments in equity instruments |
91,000,000
NOK
|
— |
26,000,000
NOK
|
— |
| Net assets (liabilities) [abstract] | ||||
| Assets |
89 547
NOK
|
— |
74 911
NOK
|
— |
| Liabilities |
76 773
NOK
|
— |
64 811
NOK
|
— |
| Assets less current liabilities [abstract] |