XML 301 R165.htm IDEA: XBRL DOCUMENT
v3.22.1

Information Regarding Members of the Board of Directors and Group Management - Additional Information (Detail) - SEK (kr) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of Information About Board Management and Employees [line items] |  |
Board fee description | The Annual General Meeting 2021 resolved that non-employee Directors may choose to receive the Board fee (i.e., exclusive of Committee fee) as follows: i) 25% of the Board fee in cash and 75% in the form of synthetic shares, with a value corresponding to 75% of the Board fee at the time of allocation, ii) 50% in cash and 50% in the form of synthetic shares, or iii) 75% in cash and 25% in the form of synthetic shares. Directors may also choose not to participate in the synthetic share program and receive 100% of the Board fee in cash |
Number of trading days | 5 days |
Remuneration excluding social security charges |  | kr 3,957,171
Number of shares outstanding | 3,334,151,735 |
Accounted debt | kr 35,181,987 |
Other Members of Executive Team [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Commitments for defined benefit based pensions including disability and survivor's pension | 47,400,000 | 45,600,000
Commitments related to ITP and early retirement | 32,900,000 | 32,000,000.0
Commitment to disability and survivors pensions | kr 14,500,000 | kr 13,600,000
Class B shares [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Weighted average market price | kr 118.65 | kr 109.20
Number of shares outstanding | 3,072,395,752 |
Synthetic shares [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Number of shares outstanding | 341,039 |
Board and committee meeting attendance fee [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Fee and commission expense | kr 1,500 |
Chairman [member] | Board fees [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Fee and commission expense | 4,225,000 |
Chairman [member] | Committee fees [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Fee and commission expense | 205,000 |
Chairman [member] | Member of remuneration committee [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Fee and commission expense | 180,000 |
Other directors [member] | Board fees [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Fee and commission expense | 1,060,000 |
Chairman of audit committee [member] | Board fees [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Fee and commission expense | 420,000 |
Other non-employee members of audit committee [member] | Board fees [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Fee and commission expense | 270,000 |
Chairmen of the finance and remuneration committees [member] | Board fees [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Fee and commission expense | 205,000 |
Other non-employee members of finance and remuneration committees [member] | Board fees [member] |  |
Disclosure of Information About Board Management and Employees [line items] |  |
Fee and commission expense | kr 180,000 |

X
- Definition Accounted debt. + References No definition available. + Details
Name: | eric_AccountedDebt
Namespace Prefix: | eric_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Basis of allocation in number of trading days following publication of interim report. + References No definition available. + Details
Name: | eric_BasisOfAllocationInNumberOfTradingDaysFollowingPublicationOfInterimReport
Namespace Prefix: | eric_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Board fee description. + References No definition available. + Details
Name: | eric_BoardFeeDescription
Namespace Prefix: | eric_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Commitment to disability and survivors pensions. + References No definition available. + Details
Name: | eric_CommitmentToDisabilityAndSurvivorsPensions
Namespace Prefix: | eric_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Commitments for defined benefit based pensions including disability and survivor's pension. + References No definition available. + Details
Name: | eric_CommitmentsForDefinedBenefitBasedPensionsIncludingDisabilityAndSurvivorPension
Namespace Prefix: | eric_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Commitments related to ITP and early retirement. + References No definition available. + Details
Name: | eric_CommitmentsRelatedToItpAndEarlyRetirement
Namespace Prefix: | eric_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Disclosure of information about board management and employees. + References No definition available. + Details
Name: | eric_DisclosureOfInformationAboutBoardManagementAndEmployeesLineItems
Namespace Prefix: | eric_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Remuneration excluding social security charges. + References No definition available. + Details
Name: | eric_RemunerationExcludingSocialSecurityCharges
Namespace Prefix: | eric_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Weighted average market price. + References No definition available. + Details
Name: | eric_WeightedAverageMarketPrice
Namespace Prefix: | eric_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of expense relating to fees and commissions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_85&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_FeeAndCommissionExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_79_a_iv&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NumberOfSharesOutstanding
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=eric_OtherMembersOfExecutiveTeamMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=eric_ClassBSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=eric_SyntheticSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eric_ExpenseCategoriesAxis=eric_BoardAndCommitteeMeetingAttendanceFeeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eric_TitleOfIndividual1Axis=eric_ChairmanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eric_ExpenseCategoriesAxis=eric_BoardFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eric_ExpenseCategoriesAxis=eric_CommitteeFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eric_ExpenseCategoriesAxis=eric_MemberOfRemunerationCommitteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eric_TitleOfIndividual1Axis=eric_OtherDirectorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eric_TitleOfIndividual1Axis=eric_ChairmanOfAuditCommitteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eric_TitleOfIndividual1Axis=eric_OtherNonEmployeeMembersOfAuditCommitteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eric_TitleOfIndividual1Axis=eric_ChairmenOfFinanceAndRemunerationCommitteesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eric_TitleOfIndividual1Axis=eric_OtherNonEmployeeMembersOfFinanceAndRemunerationCommitteesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |