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 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||
| Statement of changes in equity [line items] | ||||||||
| Dividends recognised as distributions to non-controlling interests | — |
82,000,000
SEK
|
— |
82,000,000
SEK
|
47,000,000
SEK
|
— |
47,000,000
SEK
|
— |
| Increase (decrease) through exercise of options, equity | — |
15,000,000
SEK
|
15,000,000
SEK
|
— | — | — |
22,000,000
SEK
|
22,000,000
SEK
|
| Purchase of treasury shares |
101,000,000
SEK
|
101,000,000
SEK
|
— | — | — |
18 3
SEK
|
18 3
SEK
|
— |
| Sale or issue of treasury shares |
144,000,000
SEK
|
50,000,000
SEK
|
94,000,000
SEK
|
— | — |
102,000,000
SEK
|
60,000,000
SEK
|
42,000,000
SEK
|