Statement Of Changes In Equity [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
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 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
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 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||
| Equity | — | — |
94 855
SEK
|
2 480
SEK
|
52 972
SEK
|
— | — |
113 733
SEK
|
— |
16 398
SEK
|
166 705
SEK
|
— |
160 332
SEK
|
— | — |
89 838
SEK
|
— |
15 240
SEK
|
— |
52 773
SEK
|
2 480
SEK
|
107 558
SEK
|
153 939
SEK
|
13 358
SEK
|
54 120
SEK
|
83 981
SEK
|
2 480
SEK
|
99 819
SEK
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||
| Profit (loss) | — |
6 302
SEK
|
— | — | — |
6 302
SEK
|
2 081
SEK
|
— |
8 383
SEK
|
— | — |
8 678
SEK
|
— |
7 255
SEK
|
— | — |
1 423
SEK
|
— |
7 255
SEK
|
— | — | — | — | — | — | — | — | — |
| Other comprehensive income |
1 152
SEK
|
1 136
SEK
|
— | — | — |
16,000,000
SEK
|
26,000,000
SEK
|
— |
1 162
SEK
|
— | — |
1 817
SEK
|
— |
1 835
SEK
|
1 883
SEK
|
— |
18,000,000
SEK
|
— |
48,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Comprehensive income |
1 152
SEK
|
7 438
SEK
|
— | — | — |
6 286
SEK
|
2 107
SEK
|
— |
9 545
SEK
|
— | — |
10 495
SEK
|
— |
9 090
SEK
|
1 883
SEK
|
— |
1 405
SEK
|
— |
7 207
SEK
|
— | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
1 066
SEK
|
— | — | — |
1 066
SEK
|
1 484
SEK
|
— |
2 551
SEK
|
— | — |
2 989
SEK
|
— |
992,000,000
SEK
|
— | — |
1 997
SEK
|
— |
992,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
19,000,000
SEK
|
— | — | — |
13,000,000
SEK
|
4,000,000
SEK
|
— |
15,000,000
SEK
|
— | — |
7,000,000
SEK
|
— |
18,000,000
SEK
|
— | — |
25,000,000
SEK
|
— |
18,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
4,000,000
SEK
|
— | — | — |
4,000,000
SEK
|
7,000,000
SEK
|
— |
11,000,000
SEK
|
— | — |
13,000,000
SEK
|
— |
4,000,000
SEK
|
— | — |
8,000,000
SEK
|
— |
4,000,000
SEK
|
— | — | — | — | — | — | — | — | — |
| Increase (decrease) in equity | — |
220,000,000
SEK
|
— | — | — |
220,000,000
SEK
|
427,000,000
SEK
|
— |
647,000,000
SEK
|
— | — |
1 119
SEK
|
— |
380,000,000
SEK
|
— | — |
739,000,000
SEK
|
— |
380,000,000
SEK
|
— | — | — | — | — | — | — | — | — |