Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
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As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
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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 | — |
330,924,000,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
283,358,000,000
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 |
428,000,000
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
|
113,947,000,000
SEK
|
8,452,000,000
SEK
|
1,244,000,000
SEK
|
31,655,000,000
SEK
|
—
SEK
|
—
SEK
|
8,452,000,000
SEK
|
8,452,000,000
SEK
|
—
SEK
|
—
SEK
|
31,655,000,000
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
—
SEK
|
233,000,000
SEK
|
49,000,000
SEK
|
49,000,000
SEK
|
49,000,000
SEK
|
—
SEK
|
94,978,000,000
SEK
|
8,452,000,000
SEK
|
94,561,000,000
SEK
|
31,655,000,000
SEK
|
1,660,000,000
SEK
|
1,244,000,000
SEK
|
90,234,000,000
SEK
|
61,000,000
SEK
|
49,650,000,000
SEK
|
4,327,000,000
SEK
|
90,418,000,000
SEK
|
61,000,000
SEK
|
4,560,000,000
SEK
|
1,653,000,000
SEK
|
90,185,000,000
SEK
|
1,244,000,000
SEK
|
4,327,000,000
SEK
|
1,660,000,000
SEK
|
61,000,000
SEK
|
49,601,000,000
SEK
|
94,512,000,000
SEK
|
—
SEK
|
240,000,000
SEK
|
466,000,000
SEK
|
49,841,000,000
SEK
|
7,000,000
SEK
|
233,000,000
SEK
|
11,497,000,000
SEK
|
8,452,000,000
SEK
|
8,452,000,000
SEK
|
1,372,000,000
SEK
|
11,497,000,000
SEK
|
69,952,000,000
SEK
|
70,418,000,000
SEK
|
40,083,000,000
SEK
|
10,773,000,000
SEK
|
40,323,000,000
SEK
|
11,006,000,000
SEK
|
240,000,000
SEK
|
466,000,000
SEK
|
59,179,000,000
SEK
|
51,000,000
SEK
|
51,000,000
SEK
|
233,000,000
SEK
|
59,412,000,000
SEK
|
468,000,000
SEK
|
1,379,000,000
SEK
|
7,000,000
SEK
|
468,000,000
SEK
|
233,000,000
SEK
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |