Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
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 |
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 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||
| Equity | — |
8 267
SEK
|
4 685
SEK
|
— | — |
37,000,000
SEK
|
— | — |
4,000,000
SEK
|
23,000,000
SEK
|
— |
3 518
SEK
|
7 936
SEK
|
— | — | — | — |
40,000,000
SEK
|
4 218
SEK
|
4,000,000
SEK
|
155,000,000
SEK
|
3 518
SEK
|
— | — |
3 281
SEK
|
3 518
SEK
|
6 832
SEK
|
16,000,000
SEK
|
13,000,000
SEK
|
4,000,000
SEK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||
| Profit (loss) |
1 242
SEK
|
— | — |
15,000,000
SEK
|
1 227
SEK
|
— |
-
SEK
|
-
SEK
|
— | — |
-
SEK
|
— | — |
-
SEK
|
1 283
SEK
|
1 267
SEK
|
16,000,000
SEK
|
— | — | — | — | — |
-
SEK
|
-
SEK
|
— | — | — | — | — | — |
| Other comprehensive income |
301,000,000
SEK
|
— | — |
-
SEK
|
168,000,000
SEK
|
— |
132,000,000
SEK
|
-
SEK
|
— | — |
-
SEK
|
— | — |
-
SEK
|
467,000,000
SEK
|
325,000,000
SEK
|
-
SEK
|
— | — | — | — | — |
142,000,000
SEK
|
-
SEK
|
— | — | — | — | — | — |
| Comprehensive income |
942,000,000
SEK
|
— | — |
15,000,000
SEK
|
1 059
SEK
|
— |
132,000,000
SEK
|
-
SEK
|
— | — |
-
SEK
|
— | — |
-
SEK
|
1 750
SEK
|
1 592
SEK
|
16,000,000
SEK
|
— | — | — | — | — |
142,000,000
SEK
|
-
SEK
|
— | — | — | — | — | — |
| Dividends recognised as distributions to owners |
662,000,000
SEK
|
— | — |
-
SEK
|
662,000,000
SEK
|
— |
-
SEK
|
-
SEK
|
— | — |
-
SEK
|
— | — |
-
SEK
|
610,000,000
SEK
|
610,000,000
SEK
|
-
SEK
|
— | — | — | — | — |
-
SEK
|
-
SEK
|
— | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
-
SEK
|
— | — |
18,000,000
SEK
|
18,000,000
SEK
|
— |
-
SEK
|
-
SEK
|
— | — |
-
SEK
|
— | — |
-
SEK
|
-
SEK
|
7,000,000
SEK
|
7,000,000
SEK
|
— | — | — | — | — |
-
SEK
|
-
SEK
|
— | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
38,000,000
SEK
|
— | — |
-
SEK
|
38,000,000
SEK
|
— |
-
SEK
|
-
SEK
|
— | — |
-
SEK
|
— | — |
-
SEK
|
37,000,000
SEK
|
37,000,000
SEK
|
-
SEK
|
— | — | — | — | — |
-
SEK
|
-
SEK
|
— | — | — | — | — | — |