Financial Risk Management - Disclosure of Outstanding Derivatives (Parenthetical) (Detail) - SEK (kr) kr in Millions	Dec. 31, 2024	Dec. 31, 2023
Outstanding Derivatives [Line Items]
Other current liabilities	kr 40,677	kr 36,985
Currency Derivatives [member] \| Cash flow hedges [member]
Outstanding Derivatives [Line Items]
Other current assets	0	1,617
Other current liabilities	kr 2,229	kr 679

The amount of current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Current liabilities]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard
-URIDate 2024-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant