XML 200 R96.htm IDEA: XBRL DOCUMENT
v3.21.1

Other Current Liabilities - Summary of Other Current Liabilities (Detail) - SEK (kr) kr in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Disclosure of Other Current Liabilities [line items] |  |  |
Accrued interest | kr 181 | kr 238 |
Accrued expenses | 28,895 | 31,159 |
Derivative liabilities | 234 | 996 |
Other current liabilities | 38,174 | 37,405 | kr 38,891
Of which employee-related [member] |  |  |
Disclosure of Other Current Liabilities [line items] |  |  |
Accrued expenses | 15,182 | 13,303 |
Of which supplier-related [member] |  |  |
Disclosure of Other Current Liabilities [line items] |  |  |
Accrued expenses | 7,823 | 10,084 |
Of which other [member] |  |  |
Disclosure of Other Current Liabilities [line items] |  |  |
Accrued expenses | 5,890 | 7,772 |
Other [member] |  |  |
Disclosure of Other Current Liabilities [line items] |  |  |
Other current liabilities | kr 8,864 | kr 5,012 |

X
- Definition The amount of interest accrued but is not yet received. + References No definition available. + Details
Name: | eric_AccruedInterest
Namespace Prefix: | eric_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Disclosure of other current liabilities. + References No definition available. + Details
Name: | eric_DisclosureOfOtherCurrentLiabilitiesLineItems
Namespace Prefix: | eric_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of current accrued expenses and other current liabilities. [Refer: Accruals; Other current liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of current derivative financial liabilities. [Refer: Derivative financial liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_CurrentDerivativeFinancialLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Current liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_OtherCurrentLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=eric_EmployeeRelatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=eric_SuppliersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=eric_OtherAccruedExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=eric_OtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |