Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||
| Increase (decrease) through acquisition of subsidiary, equity | — | — | — | — | — | — | — | — | — |
764,000,000
SEK
|
—
SEK
|
1,196,000,000
SEK
|
—
SEK
|
432,000,000
SEK
|
764,000,000
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
| Increase (decrease) through transactions with owners, equity |
—
SEK
|
100,000,000
SEK
|
19,000,000
SEK
|
81,000,000
SEK
|
—
SEK
|
—
SEK
|
81,000,000
SEK
|
—
SEK
|
—
SEK
|
437,000,000
SEK
|
—
SEK
|
2,980,000,000
SEK
|
1,000,000
SEK
|
2,543,000,000
SEK
|
436,000,000
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|