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Taxes - Reconciliation of Swedish Income Tax Rate with Effective Tax Rate (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2023
Reconciliation Of Accounting Profit Multiplied By Applicable Tax Rates [Line Items] |
Expected applicable tax rate | 20.60%

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- Definition Reconciliation of accounting profit multiplied by applicable tax rates. + References No definition available. + Details
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Namespace Prefix: | eric_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The applicable income tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2023-03-23 + Details
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Balance Type: | na
Period Type: | duration