Analysis Of Income And Expense [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||
| Revenue [abstract] | ||||||||||||||||
| Interest income |
102 372
SEK
|
— | — | — | — | — | — | — | — | — |
45 287
SEK
|
— | — | — | — | — |
| Interest income on other financial assets |
613,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
284,000,000
SEK
|
— | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||
| Interest expense |
51 438
SEK
|
— | — | — | — | — | — | — | — | — |
12 141
SEK
|
— | — | — | — | — |
| Interest income (expense) |
50 933
SEK
|
— | — | — | — | — | — | — | — | — |
33 146
SEK
|
— | — | — | — | — |
| Selling, general and administrative expense [abstract] | ||||||||||||||||
| General and administrative expense |
7 349
SEK
|
— | — | — | — | — | — | — | — | — |
6 291
SEK
|
— | — | — | — | — |
| Revenue and other operating income |
73 057
SEK
|
— | — | — | — | — | — | — | — | — |
52 028
SEK
|
— | — | — | — | — |
| Operating expense |
24 100
SEK
|
— | — | — | — | — | — | — | — | — |
20 817
SEK
|
— | — | — | — | — |
| Fee and commission income (expense) [abstract] | ||||||||||||||||
| Fee and commission income [abstract] | ||||||||||||||||
| Fee and commission income |
23 820
SEK
|
— | — | — | — | — | — | — | — | — |
22 203
SEK
|
— | — | — | — | — |
| Fee and commission expense [abstract] | ||||||||||||||||
| Fee and commission expense |
8 732
SEK
|
— | — | — | — | — | — | — | — | — |
8 089
SEK
|
— | — | — | — | — |
| Fee and commission income (expense) |
15 088
SEK
|
— | — | — | — | — | — | — | — | — |
14 114
SEK
|
— | — | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||||
| Classes of employee benefits expense [abstract] | ||||||||||||||||
| Employee benefits expense |
13 944
SEK
|
— | — | — | — | — | — | — | — | — |
12 831
SEK
|
— | — | — | — | — |
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||||||||||
| Depreciation and amortisation expense [abstract] | ||||||||||||||||
| Depreciation and amortisation expense |
1 920
SEK
|
— | — | — | — | — | — | — | — | — |
1 695
SEK
|
— | — | — | — | — |
| Other expenses, by nature |
887,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of attribution of expenses by nature to their function [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of attribution of expenses by nature to their function [abstract] | ||||||||||||||||
| Disclosure of attribution of expenses by nature to their function [line items] | ||||||||||||||||
| Share of other comprehensive income of associates and joint ventures accounted for using equity method, before tax [abstract] | ||||||||||||||||
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, before tax |
14,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
152,000,000
SEK
|
— | — | — | — | — |
| Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, before tax |
41,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
31,000,000
SEK
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss |
172,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
811,000,000
SEK
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income |
107,000,000
SEK
|
— |
1,000,000
SEK
|
172,000,000
SEK
|
107,000,000
SEK
|
4,000,000
SEK
|
— |
69,000,000
SEK
|
2,000,000
SEK
|
121,000,000
SEK
|
121,000,000
SEK
|
811,000,000
SEK
|
705,000,000
SEK
|
— | — |
13,000,000
SEK
|
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income |
33 368
SEK
|
2,000,000
SEK
|
3,000,000
SEK
|
33 447
SEK
|
33 367
SEK
|
14,000,000
SEK
|
331,000,000
SEK
|
267,000,000
SEK
|
9,000,000
SEK
|
26 353
SEK
|
26 356
SEK
|
24 644
SEK
|
2 716
SEK
|
3,000,000
SEK
|
4 366
SEK
|
50,000,000
SEK
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to owners of parent |
33 367
SEK
|
— | — | — | — | — | — | — | — | — |
26 353
SEK
|
— | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to non-controlling interests |
2,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
3,000,000
SEK
|
— | — | — | — | — |