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Employee Benefits - Recorded Severance Liability (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Movements in Severance Benefits [Roll Forward] |  |  |
Beginning of Year | $ 567 | $ 653 | $ 548
Charged to Expense | 1,494 | 531 | 319
Payments | (966) | (617) | (214)
End of Year | $ 1,095 | $ 567 | $ 653

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- Definition Cash outflows for payments of postemployment benefits (such as severance pay and health insurance benefits) recognized during the period. Postemployment benefits are benefits paid to employees after employment but before retirement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (g) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Liability for amount due employees, in addition to wages and any other money that employers owe employees, when their employment ends through a layoff or other termination. For example, a company may provide involuntarily terminated employees with a lump sum payment equal to one week's salary for every year of employment. + References No definition available. + Details
Name: | us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Movements In Severance Benefits [Roll Forward] + References No definition available. + Details
Name: | vz_MovementsInSeveranceBenefitsRollForward
Namespace Prefix: | vz_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Severance liability charged to expense + References No definition available. + Details
Name: | vz_SeveranceLiabilityChargedToExpense
Namespace Prefix: | vz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration