Statement Of Changes In Equity [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
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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 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
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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 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
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As at 2021-12-31 |
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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 |
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 |
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 |
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As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
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 |
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As at 2020-12-31 |
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As at 2020-12-31 |
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As at 2020-12-31 |
As at 2020-12-31 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
428,000,000
SEK
|
— | — |
117 278
SEK
|
— |
3 331
SEK
|
31 654
SEK
|
68 353
SEK
|
61,000,000
SEK
|
4 999
SEK
|
113 947
SEK
|
— | — | — |
8 452
SEK
|
— | — |
1 244
SEK
|
— | — |
31 655
SEK
|
—
SEK
|
—
SEK
|
8 452
SEK
|
—
SEK
|
8 452
SEK
|
—
SEK
|
31 655
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
233,000,000
SEK
|
49,000,000
SEK
|
— |
49,000,000
SEK
|
49,000,000
SEK
|
—
SEK
|
94 978
SEK
|
— |
8 452
SEK
|
94 561
SEK
|
31 655
SEK
|
1 660
SEK
|
1 244
SEK
|
61,000,000
SEK
|
90 234
SEK
|
4 327
SEK
|
49 650
SEK
|
90 418
SEK
|
61,000,000
SEK
|
4 560
SEK
|
— |
1 653
SEK
|
90 185
SEK
|
1 244
SEK
|
1 660
SEK
|
61,000,000
SEK
|
4 327
SEK
|
— | — |
49 601
SEK
|
— |
94 512
SEK
|
—
SEK
|
240,000,000
SEK
|
466,000,000
SEK
|
49 841
SEK
|
7,000,000
SEK
|
233,000,000
SEK
|
— |
11 497
SEK
|
8 452
SEK
|
8 452
SEK
|
1 372
SEK
|
11 497
SEK
|
69 952
SEK
|
70 418
SEK
|
40 083
SEK
|
10 773
SEK
|
40 323
SEK
|
11 006
SEK
|
240,000,000
SEK
|
466,000,000
SEK
|
59 179
SEK
|
51,000,000
SEK
|
51,000,000
SEK
|
233,000,000
SEK
|
59 412
SEK
|
468,000,000
SEK
|
1 379
SEK
|
7,000,000
SEK
|
468,000,000
SEK
|
233,000,000
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
—
SEK
|
— |
—
SEK
|
—
SEK
|
— |
17 003
SEK
|
— | — | — | — | — | — |
15 577
SEK
|
—
SEK
|
—
SEK
|
— |
15 577
SEK
|
1 426
SEK
|
— |
—
SEK
|
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
14 177
SEK
|
— | — | — | — |
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
—
SEK
|
— | — | — | — | — | — |
12 546
SEK
|
1 631
SEK
|
— |
12 546
SEK
|
— | — | — | — | — | — | — |
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
—
SEK
|
— |
—
SEK
|
—
SEK
|
— |
8 694
SEK
|
— | — | — | — | — | — |
8 573
SEK
|
3 339
SEK
|
1 672
SEK
|
— |
3 562
SEK
|
121,000,000
SEK
|
— |
1 712
SEK
|
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
4 775
SEK
|
— | — | — | — |
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
3 032
SEK
|
— | — | — | — | — | — |
2 454
SEK
|
1 001
SEK
|
— |
3 774
SEK
|
— | — | — | — | — | — | — |
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
—
SEK
|
— |
—
SEK
|
—
SEK
|
— |
25 697
SEK
|
— | — | — | — | — | — |
24 150
SEK
|
3 339
SEK
|
1 672
SEK
|
— |
19 139
SEK
|
1 547
SEK
|
— |
1 712
SEK
|
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
18 952
SEK
|
— | — | — | — |
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
3 032
SEK
|
— | — | — | — | — | — |
15 000
SEK
|
2 632
SEK
|
— |
16 320
SEK
|
— | — | — | — | — | — | — |
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
—
SEK
|
— |
—
SEK
|
—
SEK
|
— |
846,000,000
SEK
|
— | — | — | — | — | — |
—
SEK
|
—
SEK
|
—
SEK
|
— |
—
SEK
|
846,000,000
SEK
|
— |
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
15 417
SEK
|
— | — | — | — |
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
—
SEK
|
— | — | — | — | — | — |
5 709
SEK
|
9 708
SEK
|
— |
5 709
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
—
SEK
|
— |
—
SEK
|
—
SEK
|
— |
—
SEK
|
— | — | — | — | — | — |
37,000,000
SEK
|
—
SEK
|
—
SEK
|
— |
37,000,000
SEK
|
37,000,000
SEK
|
— |
—
SEK
|
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
—
SEK
|
— | — | — | — |
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
—
SEK
|
— | — | — | — | — | — |
409,000,000
SEK
|
409,000,000
SEK
|
— |
409,000,000
SEK
|
— | — | — | — | — | — | — |
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
—
SEK
|
— |
—
SEK
|
—
SEK
|
— |
24,000,000
SEK
|
— | — | — | — | — | — |
24,000,000
SEK
|
—
SEK
|
—
SEK
|
— |
24,000,000
SEK
|
—
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |