Statement Of Changes In Equity [Abstract]
| Concept |
As at 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 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2022-01-01 |
As at 2022-01-01 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-01-01 |
As at 2021-01-01 |
As at 2021-01-01 |
As at 2021-01-01 |
As at 2021-01-01 |
As at 2021-01-01 |
As at 2021-01-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||
| Equity |
3 180
SEK
|
— | — | — | — |
86,000,000
SEK
|
— |
16,000,000
SEK
|
2 761
SEK
|
37,000,000
SEK
|
280,000,000
SEK
|
3 164
SEK
|
— | — |
84,000,000
SEK
|
2 616
SEK
|
2 411
SEK
|
37,000,000
SEK
|
12,000,000
SEK
|
2 627
SEK
|
84,000,000
SEK
|
— |
2 411
SEK
|
— |
2 627
SEK
|
— |
84,000,000
SEK
|
— |
2 616
SEK
|
— |
84,000,000
SEK
|
37,000,000
SEK
|
12,000,000
SEK
|
— | — |
14,000,000
SEK
|
37,000,000
SEK
|
2 191
SEK
|
2 047
SEK
|
84,000,000
SEK
|
2 181
SEK
|
9,000,000
SEK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
-
SEK
|
413,000,000
SEK
|
4 10
SEK
|
3,000,000
SEK
|
— |
-
SEK
|
— | — | — | — | — |
4 10
SEK
|
-
SEK
|
— | — | — | — | — | — | — |
2,000,000
SEK
|
— |
366,000,000
SEK
|
— |
-
SEK
|
— |
-
SEK
|
— |
-
SEK
|
— | — | — |
368,000,000
SEK
|
366,000,000
SEK
|
— | — | — | — | — | — | — |
| Other comprehensive income | — |
-
SEK
|
198,000,000
SEK
|
0
SEK
|
1,000,000
SEK
|
— |
0
SEK
|
— | — | — | — | — |
197,000,000
SEK
|
19 6
SEK
|
— | — | — | — | — | — | — |
0
SEK
|
— |
69,000,000
SEK
|
— |
0
SEK
|
— |
70,000,000
SEK
|
— |
-
SEK
|
— | — | — |
69,000,000
SEK
|
2,000,000
SEK
|
— | — | — | — | — | — | — |
| Comprehensive income | — |
-
SEK
|
6 11
SEK
|
4 11
SEK
|
4,000,000
SEK
|
— |
0
SEK
|
— | — | — | — | — |
607,000,000
SEK
|
19 6
SEK
|
— | — | — | — | — | — | — |
2,000,000
SEK
|
— |
434,000,000
SEK
|
— |
0
SEK
|
— |
70,000,000
SEK
|
— |
-
SEK
|
— | — | — |
437,000,000
SEK
|
364,000,000
SEK
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
-
SEK
|
61,000,000
SEK
|
61,000,000
SEK
|
-
SEK
|
— |
-
SEK
|
— | — | — | — | — |
61,000,000
SEK
|
-
SEK
|
— | — | — | — | — | — | — |
0
SEK
|
— |
-
SEK
|
— |
-
SEK
|
— |
-
SEK
|
— |
-
SEK
|
— | — | — |
0
SEK
|
-
SEK
|
— | — | — | — | — | — | — |
| Amount removed from reserve of change in value of foreign currency basis spreads and included in initial cost or other carrying amount of non-financial asset (liability) or firm commitment for which fair value hedge accounting is applied | — |
-
SEK
|
19 8
SEK
|
-
SEK
|
1,000,000
SEK
|
— |
0
SEK
|
— | — | — | — | — |
19 6
SEK
|
19 6
SEK
|
— | — | — | — | — | — | — |
0
SEK
|
— |
69,000,000
SEK
|
— |
0
SEK
|
— |
70,000,000
SEK
|
— |
-
SEK
|
— | — | — |
70,000,000
SEK
|
1,000,000
SEK
|
— | — | — | — | — | — | — |