Statement Of Changes In Equity [Abstract]
| Concept |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||
| Statement of changes in equity [line items] | |||||||||||
| Dividends recognised as distributions to owners of parent |
8 252
SEK
|
— |
8 252
SEK
|
— | — |
8 179
SEK
|
— | — | — |
8 179
SEK
|
— |
| Dividends recognised as distributions to non-controlling interests | — | — | — |
433,000,000
SEK
|
— | — | — | — |
178,000,000
SEK
|
— | — |
| Increase (decrease) through transactions with owners, equity |
8 476
SEK
|
8 718
SEK
|
2 997
SEK
|
243,000,000
SEK
|
5 479
SEK
|
1 960
SEK
|
SEK
|
455,000,000
SEK
|
1 513
SEK
|
1 968
SEK
|
8,000,000
SEK
|
| Purchase of treasury shares |
5 499
SEK
|
5 499
SEK
|
— | — |
5 499
SEK
|
— | — |
21,000,000
SEK
|
— |
21,000,000
SEK
|
21,000,000
SEK
|