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Equity and Other Comprehensive Income (Loss) - Additional Information (Detail) kr / shares in Units, kr in Millions |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 02, 2024 kr / shares | Apr. 05, 2024 kr / shares | Dec. 31, 2023 SEK (kr) kr / shares shares | Dec. 31, 2022 SEK (kr) kr / shares shares | Dec. 31, 2021 kr / shares shares | Dec. 31, 2023 $ / shares shares
Board of Directors [member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Dividends recognised as distributions to owners | kr |  |  | kr 9,000.0 | kr 9,000.0 |  |
Major ordinary share transactions [member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Dividend proposed | kr / shares | kr 1.35 | kr 1.35 | kr 2.7 | kr 2.7 | kr 2.5 |
Class A shares [member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Shares quota value | kr / shares |  |  | kr 5 |  |  |
Voting rights of share holders |  |  | one vote per share |  |  |
Class B shares [member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Shares quota value | kr / shares |  |  | kr 5 |  |  |
Voting rights of share holders |  |  | one tenth of one vote per share |  |  |
Treasury shares | shares |  |  | 14,009,306 | 4,009,306 | 4,009,306 | 14,009,306
Class C Shares [Member] | LongTerm Variable Compensation Program (LTV II) [Member] |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Shares quota value | $ / shares |  |  |  |  |  | $ 5
Percentage of shares repurchased on capital stock |  |  | 0.30% |  |  | 0.30%
Payments to acquire or redeem entitys shares | kr |  |  | kr 50.0 |  |  |
Number of shares issuable | shares |  |  | 10,000,000 |  |  | 10,000,000
Payments on acquisition of repurchased shares | kr |  |  | kr 50.2 |  |  |

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- Definition The amount of dividends proposed or declared after the reporting period but before financial statements are authorised for issue. Such dividends are not recognised as a liability at the end of the reporting period because no obligation exists at that time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 10 -IssueDate 2023-01-01 -Paragraph 13 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=10&code=ifrs-tx-2023-en-r&anchor=para_13&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 137 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_137_a&doctype=Standard -URIDate 2023-03-23 + Details
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