Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
As at 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 |
2023-01-01 to 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 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 |
2022-01-01 to 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 |
As at 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 |
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 |
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 |
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 | — |
56 994
SEK
|
— |
22 867
SEK
|
— | — |
3 526
SEK
|
— | — |
13 856
SEK
|
10 217
SEK
|
53 468
SEK
|
14,000,000
SEK
|
1 817
SEK
|
— |
118,000,000
SEK
|
— | — | — |
2 945
SEK
|
7 551
SEK
|
— |
67 673
SEK
|
— | — | — | — | — |
3 434
SEK
|
32 754
SEK
|
13 856
SEK
|
— |
11 807
SEK
|
64 239
SEK
|
— |
1 506
SEK
|
6 994
SEK
|
199,000,000
SEK
|
2 945
SEK
|
— | — |
68,000,000
SEK
|
— | — |
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
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
897,000,000
SEK
|
— |
303,000,000
SEK
|
— |
594,000,000
SEK
|
303,000,000
SEK
|
— |
-
SEK
|
-
SEK
|
— | — | — | — | — |
-
SEK
|
— |
-
SEK
|
-
SEK
|
-
SEK
|
— | — |
-
SEK
|
— |
-
SEK
|
14 165
SEK
|
14 638
SEK
|
474,000,000
SEK
|
-
SEK
|
— | — | — |
-
SEK
|
— | — |
-
SEK
|
— | — | — | — |
-
SEK
|
14 638
SEK
|
— |
-
SEK
|
-
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
3 280
SEK
|
— |
3 231
SEK
|
— |
50,000,000
SEK
|
1 792
SEK
|
— |
1 590
SEK
|
-
SEK
|
— | — | — | — | — |
81,000,000
SEK
|
— |
311,000,000
SEK
|
-
SEK
|
-
SEK
|
— | — |
79,000,000
SEK
|
— |
-
SEK
|
7 022
SEK
|
3 794
SEK
|
391,000,000
SEK
|
212,000,000
SEK
|
— | — | — |
58,000,000
SEK
|
— | — |
123,000,000
SEK
|
— | — | — | — |
-
SEK
|
6 631
SEK
|
— |
2 559
SEK
|
-
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
2 383
SEK
|
— |
2 927
SEK
|
— |
544,000,000
SEK
|
1 489
SEK
|
— |
1 590
SEK
|
-
SEK
|
— | — | — | — | — |
81,000,000
SEK
|
— |
311,000,000
SEK
|
-
SEK
|
-
SEK
|
— | — |
79,000,000
SEK
|
— | — |
7 142
SEK
|
10 844
SEK
|
865,000,000
SEK
|
212,000,000
SEK
|
— | — | — |
58,000,000
SEK
|
— | — |
123,000,000
SEK
|
— | — | — | — | — |
8 007
SEK
|
— |
2 559
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Issue of equity | — | — | — | — | — |
-
SEK
|
— |
-
SEK
|
534,000,000
SEK
|
— | — | — | — | — |
-
SEK
|
— |
-
SEK
|
-
SEK
|
-
SEK
|
— | — |
-
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
8 317
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8 685
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity |
-
SEK
|
— |
-
SEK
|
— |
-
SEK
|
-
SEK
|
— |
-
SEK
|
534,000,000
SEK
|
— | — | — | — | — |
-
SEK
|
— |
-
SEK
|
-
SEK
|
534,000,000
SEK
|
— | — |
-
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity |
-
SEK
|
— |
-
SEK
|
— |
-
SEK
|
534,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
-
SEK
|
5 445
SEK
|
5 255
SEK
|
190,000,000
SEK
|
-
SEK
|
— | — | — |
-
SEK
|
— | — |
-
SEK
|
— | — | — | — |
-
SEK
|
5 255
SEK
|
— |
-
SEK
|
-
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
24,000,000
SEK
|
— |
24,000,000
SEK
|
— |
-
SEK
|
-
SEK
|
— |
-
SEK
|
-
SEK
|
— | — | — | — | — |
-
SEK
|
— |
-
SEK
|
-
SEK
|
24,000,000
SEK
|
— | — |
-
SEK
|
— |
-
SEK
|
20,000,000
SEK
|
-
SEK
|
-
SEK
|
-
SEK
|
— | — | — |
-
SEK
|
— | — |
-
SEK
|
— | — | — | — |
-
SEK
|
20,000,000
SEK
|
— |
-
SEK
|
20,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — |
| Amount removed from reserve of cash flow hedges 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 |
3,000,000
SEK
|
— |
3,000,000
SEK
|
— |
-
SEK
|
-
SEK
|
— |
-
SEK
|
-
SEK
|
— | — | — | — | — |
-
SEK
|
— |
-
SEK
|
-
SEK
|
-
SEK
|
— | — |
3,000,000
SEK
|
— |
-
SEK
|
10,000,000
SEK
|
-
SEK
|
-
SEK
|
10,000,000
SEK
|
— | — | — |
-
SEK
|
— | — |
-
SEK
|
— | — | — | — |
-
SEK
|
10,000,000
SEK
|
— |
-
SEK
|
-
SEK
|
— | — | — | — | — | — | — | — | — | — | — |