Statement Of Changes In Equity [Abstract]
| Concept |
2021-01-01 to 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 2021-12-31 |
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 |
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 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
46 595
SEK
|
76,000,000
SEK
|
— | — |
12 472
SEK
|
— |
83 544
SEK
|
134,000,000
SEK
|
1 564
SEK
|
— |
2 945
SEK
|
— |
80 731
SEK
|
2 812
SEK
|
9 247
SEK
|
13 856
SEK
|
— | — | — | — |
31 582
SEK
|
183,000,000
SEK
|
1 118
SEK
|
37,000,000
SEK
|
12 480
SEK
|
62 378
SEK
|
13 856
SEK
|
— |
2 945
SEK
|
— | — |
6 157
SEK
|
— |
63 496
SEK
|
— | — |
1 469
SEK
|
— | — |
266,000,000
SEK
|
90 646
SEK
|
13 856
SEK
|
1 409
SEK
|
91 047
SEK
|
5 330
SEK
|
388,000,000
SEK
|
266,000,000
SEK
|
266,000,000
SEK
|
13 025
SEK
|
12,000,000
SEK
|
388,000,000
SEK
|
92 055
SEK
|
123,000,000
SEK
|
5 330
SEK
|
3 099
SEK
|
2 943
SEK
|
12,000,000
SEK
|
67 611
SEK
|
1 380
SEK
|
12,000,000
SEK
|
175,000,000
SEK
|
175,000,000
SEK
|
2 943
SEK
|
1 409
SEK
|
3 099
SEK
|
13 025
SEK
|
388,000,000
SEK
|
13 856
SEK
|
92 455
SEK
|
1 380
SEK
|
123,000,000
SEK
|
67 745
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
156,000,000
SEK
|
— | — | — | — | — |
11 680
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
11 836
SEK
|
11 680
SEK
|
22 837
SEK
|
— | — | — | — | — | — | — |
22 993
SEK
|
— | — | — | — | — | — | — |
156,000,000
SEK
|
— |
22 993
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
25,000,000
SEK
|
— | — |
114,000,000
SEK
|
48,000,000
SEK
|
— |
8 641
SEK
|
— | — | — |
3 090
SEK
|
— |
95,000,000
SEK
|
— | — | — | — | — |
8 666
SEK
|
5 294
SEK
|
5 433
SEK
|
— | — | — | — | — | — | — |
5 720
SEK
|
— |
89,000,000
SEK
|
8,000,000
SEK
|
— | — | — |
11 487
SEK
|
255,000,000
SEK
|
— |
5 688
SEK
|
160,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
181,000,000
SEK
|
— | — |
114,000,000
SEK
|
48,000,000
SEK
|
— |
20 321
SEK
|
— | — | — |
3 090
SEK
|
— |
95,000,000
SEK
|
— | — | — | — | — |
20 502
SEK
|
16 974
SEK
|
17 405
SEK
|
— | — | — | — | — | — | — |
28 713
SEK
|
— |
89,000,000
SEK
|
8,000,000
SEK
|
— | — | — |
11 487
SEK
|
99,000,000
SEK
|
— |
17 307
SEK
|
160,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8 357
SEK
|
— |
10 212
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
1 691
SEK
|
— | — | — | — | — |
6 219
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
7 910
SEK
|
6 219
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — | — | — | — |
13,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — |
13,000,000
SEK
|
13,000,000
SEK
|
— |
16,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
16,000,000
SEK
|
— | — | — | — |
16,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |