Disclosure Of Fair Value Measurement [Text Block]
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2023-01-01 to 2023-12-31 |
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| Disclosure of fair value measurement [text block] |
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| Disclosure of fair value measurement of assets [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of assets [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Assets | — |
356,362,000,000
SEK
|
— | — | — | — | — | — | — | — |
330,924,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
130,485,000,000
SEK
|
80,096,000,000
SEK
|
4,114,000,000
SEK
|
31,654,000,000
SEK
|
61,000,000
SEK
|
4,092,000,000
SEK
|
2,016,000,000
SEK
|
126,371,000,000
SEK
|
8,452,000,000
SEK
|
117,278,000,000
SEK
|
3,331,000,000
SEK
|
31,654,000,000
SEK
|
68,353,000,000
SEK
|
61,000,000
SEK
|
4,999,000,000
SEK
|
428,000,000
SEK
|
113,947,000,000
SEK
|
8,452,000,000
SEK
|
49,000,000
SEK
|
49,000,000
SEK
|
—
SEK
|
49,650,000,000
SEK
|
—
SEK
|
94,978,000,000
SEK
|
—
SEK
|
94,561,000,000
SEK
|
1,244,000,000
SEK
|
—
SEK
|
240,000,000
SEK
|
466,000,000
SEK
|
31,655,000,000
SEK
|
—
SEK
|
49,841,000,000
SEK
|
1,660,000,000
SEK
|
90,418,000,000
SEK
|
61,000,000
SEK
|
4,560,000,000
SEK
|
7,000,000
SEK
|
233,000,000
SEK
|
1,653,000,000
SEK
|
—
SEK
|
8,452,000,000
SEK
|
8,452,000,000
SEK
|
—
SEK
|
1,244,000,000
SEK
|
31,655,000,000
SEK
|
—
SEK
|
61,000,000
SEK
|
90,234,000,000
SEK
|
—
SEK
|
4,327,000,000
SEK
|
—
SEK
|
233,000,000
SEK
|
49,000,000
SEK
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |