TELEFONICA BRASIL S.A. (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 00090 - Document - Document and Entity Information Network

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 http://www.telefonica.com/role/DocumentDocumentAndEntityInformation
2 Document Information [Table] Table

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 dei:DocumentInformationTable
3 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
4 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
5 Common shares Member ifrs-full:OrdinarySharesMember
6 Preferred shares Member ifrs-full:PreferenceSharesMember
7 Document Information [Line Items] LineItems dei:DocumentInformationLineItems
8 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
9 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
10 Document Type Concept (Submission Type) For Period dei:DocumentType
11 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
12 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
13 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
14 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
15 Entity Voluntary Filers Concept (Yes/No) For Period dei:EntityVoluntaryFilers
16 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
17 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
18 Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
19 Entity Shell Company Concept (Yes/No) For Period dei:EntityShellCompany
20 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
21 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
22 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
23 00100 - Statement - Consolidated Balance Sheets Network

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 http://www.telefonica.com/role/StatementConsolidatedBalanceSheets
24 Implied Table Table

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 implied:Table
25 Consolidated Balance Sheets Abstract ifrs-full:StatementOfFinancialPositionAbstract
26 ASSETS Abstract ifrs-full:AssetsAbstract
27 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
28 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
29 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
30 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
31 Income and social contribution taxes recoverable Concept (Monetary) As Of Debit viv:IncomeAndSocialContributionTaxesRecoverableCurrent
32 Taxes, charges and contributions recoverable Concept (Monetary) As Of Debit viv:TaxesChargesAndContributionsRecoverableCurrent
33 Judicial deposits and garnishments Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
34 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:CurrentPrepayments
35 Derivative financial instruments Concept (Monetary) As Of Debit ifrs-full:CurrentDerivativeFinancialAssets
36 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
37 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
38 Short-term investments pledged as collateral Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities
39 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivables
40 Taxes, charges and contributions recoverable Concept (Monetary) As Of Debit viv:TaxesChargesAndContributionsRecoverableNonCurrent
41 Deferred taxes Concept (Monetary) As Of Debit ifrs-full:NetDeferredTaxAssets
42 Judicial deposits and garnishments Concept (Monetary) As Of Debit ifrs-full:NoncurrentRestrictedCashAndCashEquivalents
43 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:NoncurrentPrepayments
44 Derivative financial instruments Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
45 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
46 Investments Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
47 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
48 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
49 TOTAL ASSETS Concept (Monetary) As Of Debit ifrs-full:Assets
50 LIABILITIES AND EQUITY Abstract ifrs-full:EquityAndLiabilitiesAbstract
51 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
52 Personnel, social charges and benefits Concept (Monetary) As Of Credit ifrs-full:CurrentProvisionsForEmployeeBenefits
53 Trade accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
54 Income and social contribution taxes payable Concept (Monetary) As Of Credit viv:IncomeAndSocialContributionTaxesPayableCurrent
55 Taxes, charges and contributions payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
56 Dividends and interest on equity Concept (Monetary) As Of Credit viv:DividendAndInterestOnEquityCurrentPayable
57 Provisions and contingencies Concept (Monetary) As Of Credit ifrs-full:OtherShorttermProvisions
58 Deferred income Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
59 Loans, financing and debentures Concept (Monetary) As Of Credit viv:LoansFinancingAndDebenturesCurrent
60 Derivative financial instruments Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
61 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
62 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
63 Personnel, social charges and benefits Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisionsForEmployeeBenefits
64 Taxes, charges and contributions payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesNoncurrent
65 Deferred taxes Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
66 Provisions and contingencies Concept (Monetary) As Of Credit ifrs-full:OtherLongtermProvisions
67 Deferred income Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsNoncurrent
68 Loans, financing and debentures Concept (Monetary) As Of Credit viv:LoansFinancingAndDebenturesNonCurrent
69 Derivative financial instruments Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
70 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
71 TOTAL LIABILITIES Concept (Monetary) As Of Credit ifrs-full:Liabilities
72 Equity Concept (Monetary) As Of Credit ifrs-full:Equity
73 Capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
74 Capital reserves Concept (Monetary) As Of Credit viv:CapitalAndCapitalRedemptionReserves
75 Income reserves Concept (Monetary) As Of Credit viv:IncomeReserves
76 Other comprehensive income accumulated Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
77 Additional proposed dividends Concept (Monetary) As Of Credit viv:AdditionalProposedDividends
78 TOTAL LIABILITIES AND EQUITY Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
79 00200 - Statement - Consolidated Statements of Income Network

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 http://www.telefonica.com/role/StatementConsolidatedStatementsOfIncome
80 IFRS Statement [Table] Table

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 viv:IfrsStatementTable
81 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
82 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
83 Common shares Member ifrs-full:OrdinarySharesMember
84 Preferred shares Member ifrs-full:PreferenceSharesMember
85 Consolidated Statements of Income LineItems viv:IfrsStatementLineItems
86 Net operating income Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfTelecommunicationServices
87 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
88 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
89 Operating income (expenses) Concept (Monetary) For Period Debit viv:OperatingExpenseIncomeExcludingCostOfSales
90 Selling expenses Concept (Monetary) For Period Debit ifrs-full:SellingExpense
91 General and administrative expenses Concept (Monetary) For Period Debit ifrs-full:GeneralAndAdministrativeExpense
92 Other operating income Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
93 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:MiscellaneousOtherOperatingExpense
94 Operating income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
95 Financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
96 Finance expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
97 Equity pickup Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
98 Income before taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
99 Income and social contribution taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
100 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
101 Basic and diluted earnings per share Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
102 00300 - Statement - Consolidated Statements of Other Comprehensive Income Network

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 http://www.telefonica.com/role/StatementConsolidatedStatementsOfOtherComprehensiveIncome
103 Implied Table Table

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104 Consolidated Statements of Other Comprehensive Income Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
105 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
106 Other comprehensive income (losses) that may be reclassified into income (losses) in subsequent periods Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
107 Gains (losses) on derivative financial instruments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax
108 Taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome
109 Cumulative Translation Adjustments (CTA) on transactions in foreign currency Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
110 Other comprehensive income (losses) not to be reclassified into income (losses) in subsequent periods Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax
111 Unrealized gains ( losses) on financial assets at fair value through other comprehensive income Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax
112 Actuarial losses and limitation effect of the assets of surplus plan Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
113 Taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
114 Other comprehensive losses Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
115 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
116 00400 - Statement - Consolidated Statements of Changes in Equity Network

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 http://www.telefonica.com/role/StatementConsolidatedStatementsOfChangesInEquity
117 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
118 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
119 Equity [member] Member ifrs-full:EquityMember
120 Capital Member ifrs-full:IssuedCapitalMember
121 Capital reserves Member viv:CapitalAndCapitalRedemptionReserveMember
122 Special goodwill reserve Member viv:SpecialGoodwillReserveMember
123 Other capital reserves Member ifrs-full:CapitalReserveMember
124 Treasury shares Member ifrs-full:TreasurySharesMember
125 Legal reserve Member viv:IncomeReservesLegalReserveMember
126 Tax incentive reserve Member viv:IncomeReserveTaxIncentiveReserveMember
127 Expansion and modernization reserve Member viv:IncomeReserveExpansionAndModernizationReserveMember
128 Retained earnings Member ifrs-full:RetainedEarningsMember
129 Proposed additional dividends Member viv:AdditionalProposedDividendsMember
130 Other comprehensive income accumulated Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
131 Consolidated Statements of Changes in Equity LineItems ifrs-full:StatementOfChangesInEquityLineItems
132 Equity at beginning of period Concept (Monetary) As Of Credit ifrs-full:Equity
133 Effects of the initial adoption of IFRS 9 and 15, net of taxes Concept (Monetary) For Period Credit viv:IncreaseDecreaseInEquityThroughChangesInAdoptionOfIfrs9AndIfrs15
134 Payment of additional dividend Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears
135 Prescribed equity instruments, including unclaimed dividends and interest on equity Concept (Monetary) For Period Credit viv:IncreaseDecreaseThroughPrescribedEquityInstrumentsIncludingUnclaimedDividendsAndInterestOnEquityEquity
136 Repurchase of preferred shares Concept (Monetary) For Period Debit viv:RepurchaseOfPreferredShares
137 Preferred shares delivered referring to the judical process of expansion plan Concept (Monetary) For Period Credit ifrs-full:SaleOrIssueOfTreasuryShares
138 Corporate Income Tax Return (DIPJ) adjustments - Tax incentives Concept (Monetary) For Period Debit viv:TaxIncentivesOnCorporateIncomeTaxReturnAdjustments
139 Equity transactions Concept (Monetary) For Period Debit viv:DecreaseFromPremiumOnAcquisitionOfSubsidiaryEquity
140 Other comprehensive income (loss) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
141 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
142 Allocation of income: Abstract viv:AllocationOfIncomeAbstract
143 Legal reserve Concept (Monetary) For Period Credit viv:AllocationOfIncomeToLegalReserve
144 Interim interest on equity Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear
145 Reversal expansion and Modernization Reserve Concept (Monetary) For Period Credit viv:AllocationOfIncomeToReversalExpansionAndModernizationReserve
146 Expansion and Modernization Reserve Concept (Monetary) For Period Credit viv:AllocationOfIncomeToExpansionAndModernizationReserve
147 Additional proposed dividends Concept (Monetary) For Period Credit viv:AllocationOfIncomeToAdditionalDividendProposed
148 Equity at end of period Concept (Monetary) As Of Credit ifrs-full:Equity
149 00500 - Statement - Consolidated Statements of Cash Flows Network

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 http://www.telefonica.com/role/StatementConsolidatedStatementsOfCashFlows
150 Implied Table Table

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151 Consolidated Statements of Cash Flows Abstract ifrs-full:StatementOfCashFlowsAbstract
152 Cash flows from operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
153 Income before taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
154 Adjustment for: Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
155 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
156 Foreign exchange on loans and derivative financial instruments Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
157 Monetary losses Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForFairValueGainsLosses
158 Equity pickup Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForUndistributedProfitsOfAssociates
159 Losses (gains) on write-off/sale of assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
160 Provision for impairment - accounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeAndOtherReceivables
161 Change in liability provisions Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForProvisions
162 Write-off and reversals for impairment - inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories
163 Pension plans and other post-employment benefits Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities
164 Provisions for tax, labor, civil and regulatory contingencies Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseInOtherProvisionsArisingFromPassageOfTime
165 Interest expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForInterestExpense
166 Other Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsToReconcileProfitLoss
167 Changes in assets and liabilities Abstract viv:IncreaseDecreaseInWorkingCapitalAbstract
168 Trade accounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable
169 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
170 Taxes recoverable Concept (Monetary) For Period Debit viv:AdjustmentsForTaxesRecoverable
171 Prepaid expenses Concept (Monetary) For Period Debit viv:AdjustmentsForDecreaseIncreaseInPrepaidExpenses
172 Other assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets
173 Personnel, social charges and benefits Concept (Monetary) For Period Debit viv:AdjustmentsForDecreaseIncreaseInPersonnelSocialChargesAndBenefits
174 Trade accounts payable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable
175 Taxes, charges and contributions Concept (Monetary) For Period Debit viv:AdjustmentsForDecreaseIncreaseInTaxesChargesAndContributions
176 Provisions for tax, civil, labor and regulatory contingencies Concept (Monetary) For Period Debit viv:AdjustmentsForIncreaseDecreaseInProvisionsForTaxCivilLaborAndRegulatoryContingencies
177 Other liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities
178 Total adjustments to reconcile profit (loss) Concept (Monetary) For Period viv:CashFlowsFromOperatingActivitiesBeforeInterestAndTaxes
179 Cash generated from operations Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperations
180 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
181 Income and social contribution taxes paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
182 Net cash (used in) generated by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
183 Cash flows from investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
184 Additions to PP&E, intangible assets and others Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
185 Cash received from sale of PP&E items Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
186 Cash paid for acquisition of companies, net of cash acquired Concept (Monetary) For Period Credit ifrs-full:OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities
187 Net payment of derivative contracts on acquisition of GVT Concept (Monetary) For Period Credit viv:NetPaymentOfDerivativeContractsOnAcquisition
188 Redemption of (increase in) judicial deposits Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInDepositsFromBanks
189 Dividend and interest on equity received Concept (Monetary) For Period Debit ifrs-full:DividendsReceivedClassifiedAsInvestingActivities
190 Other Concept (Monetary) For Period Debit ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities
191 Net cash (used in) generated by investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
192 Cash flows from financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
193 Payment of loans, financing and debentures Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
194 Loans and financing raised Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
195 Received of derivative financial instruments Concept (Monetary) For Period Debit viv:ProceedsFromDerivativeFinancialInstruments
196 Payment of derivative financial instruments Concept (Monetary) For Period Credit viv:PaymentsForDerivativeFinancialInstruments
197 Payment for reverse split of shares Concept (Monetary) For Period Credit viv:PaymentForReverseSplitOfShares
198 Dividend and interest on equity paid Concept (Monetary) For Period Credit ifrs-full:DividendsPaidClassifiedAsFinancingActivities
199 Treasury shares Concept (Monetary) For Period Credit viv:PaymentsToRepurchaseOfTreasuryShares
200 Net cash (used in) generated by financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
201 Increase (decrease) in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
202 Cash and cash equivalents at beginning of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
203 Cash and cash equivalents at end of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
204 10101 - Disclosure - OPERATIONS Network

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205 Implied Table Table

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206 OPERATIONS Abstract viv:DisclosureOfNatureOfOperationsAbstract
207 OPERATIONS Concept (Text Block (HTML)) For Period viv:DisclosureOfNatureOfBusinessTextBlock
208 10201 - Disclosure - BASIS OF PREPARATION AND PRESENTATION OF FINANCIAL STATEMENTS Network

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 http://www.telefonica.com/role/DisclosureBasisOfPreparationAndPresentationOfFinancialStatements
209 Implied Table Table

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210 BASIS OF PREPARATION AND PRESENTATION OF FINANCIAL STATEMENTS Abstract viv:DisclosureOfBasisOfPreparationAndPresentationOfFinancialStatementsAbstract
211 BASIS OF PREPARATION AND PRESENTATION OF FINANCIAL STATEMENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
212 10301 - Disclosure - CASH AND CASH EQUIVALENTS Network

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 http://www.telefonica.com/role/DisclosureCashAndCashEquivalents
213 Implied Table Table

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214 CASH AND CASH EQUIVALENTS Abstract ifrs-full:CashAndCashEquivalentsAbstract
215 CASH AND CASH EQUIVALENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
216 10401 - Disclosure - TRADE ACCOUNTS RECEIVABLE Network

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 http://www.telefonica.com/role/DisclosureTradeAccountsReceivable
217 Implied Table Table

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218 TRADE ACCOUNTS RECEIVABLE Abstract viv:TradeAccountReceivablesAbstract
219 TRADE ACCOUNTS RECEIVABLE Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
220 10501 - Disclosure - INVENTORIES Network

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 http://www.telefonica.com/role/DisclosureInventories
221 Implied Table Table

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222 INVENTORIES Abstract ifrs-full:ClassesOfInventoriesAbstract
223 INVENTORIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
224 10601 - Disclosure - PREPAID EXPENSES Network

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 http://www.telefonica.com/role/DisclosurePrepaidExpenses
225 Implied Table Table

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226 PREPAID EXPENSES Abstract ifrs-full:PrepaymentsAndAccruedIncomeAbstract
227 PREPAID EXPENSES Concept (Text Block (HTML)) For Period viv:DisclosureOfPrepaidExpensesTextBlock
228 10701 - Disclosure - INCOME AND SOCIAL CONTRIBUTION TAXES Network

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 http://www.telefonica.com/role/DisclosureIncomeAndSocialContributionTaxes
229 Implied Table Table

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230 INCOME AND SOCIAL CONTRIBUTION TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
231 INCOME AND SOCIAL CONTRIBUTION TAXES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
232 10801 - Disclosure - TAXES, CHARGES AND CONTRIBUTIONS RECOVERABLE Network

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233 Implied Table Table

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234 TAXES, CHARGES AND CONTRIBUTIONS RECOVERABLE Abstract viv:TaxesChargesAndContributionsRecoverableAbstract
235 TAXES, CHARGES AND CONTRIBUTIONS RECOVERABLE Concept (Text Block (HTML)) For Period viv:TaxesChargesAndContributionsRecoverableTextBlock
236 10901 - Disclosure - JUDICIAL DEPOSITS AND GARNISHMENTS Network

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237 Implied Table Table

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238 JUDICIAL DEPOSITS AND GARNISHMENTS Abstract viv:JudicialDepositsAndGarnishmentsAbstract
239 JUDICIAL DEPOSITS AND GARNISHMENTS Concept (Text Block (HTML)) For Period viv:JudicialDepositsAndGarnishmentsTextBlock
240 11001 - Disclosure - OTHER ASSETS Network

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241 Implied Table Table

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242 OTHER ASSETS Abstract viv:OtherAssetAbstract
243 OTHER ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherAssetsExplanatory
244 11101 - Disclosure - INVESTMENTS Network

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245 Implied Table Table

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246 INVESTMENTS Abstract ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesAbstract
247 INVESTMENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory
248 11201 - Disclosure - PROPERTY, PLANT AND EQUIPMENT Network

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249 Implied Table Table

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250 PROPERTY, PLANT AND EQUIPMENT Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
251 PROPERTY, PLANT AND EQUIPMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
252 11301 - Disclosure - INTANGIBLE ASSETS Network

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253 Implied Table Table

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254 INTANGIBLE ASSETS Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
255 INTANGIBLE ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsAndGoodwillExplanatory
256 11401 - Disclosure - IMPAIRMENT OF NONFINANCIAL ASSETS Network

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257 Implied Table Table

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258 IMPAIRMENT OF NONFINANCIAL ASSETS Abstract ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract
259 IMPAIRMENT OF NONFINANCIAL ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfImpairmentOfAssetsExplanatory
260 11501 - Disclosure - PERSONNEL, SOCIAL CHARGES AND BENEFITS Network

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261 Implied Table Table

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262 PERSONNEL, SOCIAL CHARGES AND BENEFITS Abstract ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
263 PERSONNEL, SOCIAL CHARGES AND BENEFITS Concept (Text Block (HTML)) For Period viv:DisclosureOfSocialChargesAndEmployeeBenefitsTextBlock
264 11601 - Disclosure - TRADE ACCOUNTS PAYABLE Network

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265 Implied Table Table

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266 TRADE ACCOUNTS PAYABLE Abstract ifrs-full:TradeAndOtherPayablesAbstract
267 TRADE ACCOUNTS PAYABLE Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory
268 11701 - Disclosure - TAXES, CHARGES AND CONTRIBUTIONS Network

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269 Implied Table Table

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270 TAXES, CHARGES AND CONTRIBUTIONS Abstract viv:TaxesChargesAndContributionsAbstract
271 TAXES, CHARGES AND CONTRIBUTIONS Concept (Text Block (HTML)) For Period viv:TaxesChargesAndContributionsTextBlock
272 11801 - Disclosure - DIVIDENDS AND INTEREST ON EQUITY (IOE) Network

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273 Implied Table Table

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274 DIVIDENDS AND INTEREST ON EQUITY (IOE) Abstract viv:DisclosureOfDividendsAndInterestOnEquityAbstract
275 DIVIDENDS AND INTEREST ON EQUITY (IOE) Concept (Text Block (HTML)) For Period viv:DisclosureOfDividendsAndInterestOnEquityTextBlock
276 11901 - Disclosure - PROVISIONS AND CONTINGENCIES Network

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277 Implied Table Table

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278 PROVISIONS AND CONTINGENCIES Abstract viv:DisclosureOfProvisionsAndContingenciesAbstract
279 PROVISIONS AND CONTINGENCIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory
280 12001 - Disclosure - LOANS, FINANCING AND DEBENTURES Network

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281 Implied Table Table

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282 LOANS, FINANCING AND DEBENTURES Abstract ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
283 LOANS, FINANCING AND DEBENTURES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingsExplanatory
284 12101 - Disclosure - DEFERRED INCOME Network

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285 Implied Table Table

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286 DEFERRED INCOME Abstract ifrs-full:AccrualsAndDeferredIncomeAbstract
287 DEFERRED INCOME Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredIncomeExplanatory
288 12201 - Disclosure - OTHER LIABILITIES Network

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289 Implied Table Table

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290 OTHER LIABILITIES Abstract viv:IfrsOtherLiabilitiesAbstract
291 OTHER LIABILITIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherLiabilitiesExplanatory
292 12301 - Disclosure - EQUITY Network

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 http://www.telefonica.com/role/DisclosureEquity
293 Implied Table Table

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294 EQUITY Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
295 EQUITY Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
296 12401 - Disclosure - NET OPERATING REVENUE Network

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297 Implied Table Table

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298 NET OPERATING REVENUE Abstract ifrs-full:RevenueAbstract
299 NET OPERATING REVENUE Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRevenueExplanatory
300 12501 - Disclosure - OPERATING COSTS AND EXPENSES Network

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301 Implied Table Table

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302 OPERATING COSTS AND EXPENSES Abstract viv:DisclosureOfOperatingCostsExpensesAbstract
303 OPERATING COSTS AND EXPENSES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesExplanatory
304 12601 - Disclosure - OTHER OPERATING INCOME (EXPENSES) Network

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305 Implied Table Table

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306 OTHER OPERATING INCOME (EXPENSES) Abstract viv:DisclosureOfOtherOperatingIncomeExpensesAbstract
307 OTHER OPERATING INCOME (EXPENSES) Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingIncomeExpenseExplanatory
308 12701 - Disclosure - FINANCIAL INCOME (EXPENSES) Network

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309 Implied Table Table

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310 FINANCIAL INCOME (EXPENSES) Abstract viv:DisclosureOfFinancialIncomeExpensesAbstract
311 FINANCIAL INCOME (EXPENSES) Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory
312 12801 - Disclosure - BALANCES AND TRANSACTIONS WITH RELATED PARTIES Network

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313 Implied Table Table

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314 BALANCES AND TRANSACTIONS WITH RELATED PARTIES Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
315 BALANCES AND TRANSACTIONS WITH RELATED PARTIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
316 12901 - Disclosure - SHARE-BASED PAYMENT PLANS Network

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317 Implied Table Table

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318 SHARE-BASED PAYMENT PLANS Abstract ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
319 SHARE-BASED PAYMENT PLANS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
320 13001 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS Network

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321 Implied Table Table

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322 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
323 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEmployeeBenefitsExplanatory
324 13101 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT Network

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325 Implied Table Table

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326 FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT Abstract ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract
327 FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory
328 13201 - Disclosure - LEASE Network

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329 Implied Table Table

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330 LEASE Abstract ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract
331 LEASE Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfLeasesExplanatory
332 13301 - Disclosure - COMMITMENTS AND GUARANTEES (RENTALS) Network

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333 Implied Table Table

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334 COMMITMENTS AND GUARANTEES (RENTALS) Abstract viv:DisclosureOfCommitmentsAndGuaranteesAbstract
335 COMMITMENTS AND GUARANTEES (RENTALS) Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
336 13401 - Disclosure - ADDITIONAL INFORMATION ON CASH FLOWS Network

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337 Implied Table Table

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338 ADDITIONAL INFORMATION ON CASH FLOWS Abstract viv:DisclosureOfCashFlowInformationAbstract
339 ADDITIONAL INFORMATION ON CASH FLOWS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashFlowStatementExplanatory
340 13501 - Disclosure - ADDITIONAL INFORMATION ON THE CONSOLIDATED INCOME STATEMENT - IFRS 15 - UNAUDITED Network

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341 Implied Table Table

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342 ADDITIONAL INFORMATION ON THE CONSOLIDATED INCOME STATEMENT - IFRS 15 - UNAUDITED Abstract viv:DisclosureOfIncomeStatementAbstract
343 ADDITIONAL INFORMATION ON THE CONSOLIDATED INCOME STATEMENT - IFRS 15 - UNAUDITED Concept (Text Block (HTML)) For Period viv:DisclosureOfConsolidatedIncomeStatementTextBlock
344 13601 - Disclosure - SUBSEQUENT EVENTS Network

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345 Implied Table Table

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346 SUBSEQUENT EVENTS Abstract ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract
347 SUBSEQUENT EVENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
348 20002 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING PRACTICES (Policies) Network

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349 Implied Table Table

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350 SUMMARY OF SIGNIFICANT ACCOUNTING PRACTICES Abstract viv:SummaryOfSignificantAccountingPoliciesAbstract
351 Cash and cash equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
352 Trade accounts receivable Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory
353 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
354 Prepaid expenses Concept (Text Block (HTML)) For Period viv:DescriptionOfAccountingPolicyForPrepaidExpensesTextBlock
355 INCOME AND SOCIAL CONTRIBUTION TAXES Concept (Text Block (HTML)) For Period viv:DescriptionOfAccountingPolicyForIncomeTaxesAndTaxesOtherThanIncomeTaxTextBlock
356 Investments Concept (Text Block (HTML)) For Period viv:DescriptionOfAccountingPolicyForInvestmentsTextBlock
357 Property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
358 Intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory
359 Goodwill Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForGoodwillExplanatory
360 Impairment of nonfinancial assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory
361 PROVISIONS AND CONTINGENCIES Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
362 Loans, financing and debentures Concept (Text Block (HTML)) For Period viv:DescriptionOfAccountingPolicyForLoansFinancingAndDebenturesTextBlock
363 NET OPERATING REVENUE Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
364 FINANCIAL INCOME (EXPENSES) Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory
365 Share-based payments plans Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
366 Pension plans and other post-employment benefits Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
367 Financial Instruments - Initial recognition and subsequent measurement Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
368 Derivative financial instruments and hedge accounting Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory
369 Lease Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
370 30103 - Disclosure - OPERATIONS (Tables) Network

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371 Implied Table Table

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372 OPERATIONS Abstract viv:DisclosureOfNatureOfOperationsAbstract
373 Summary of authorizations for rendering SMP services Concept (Text Block (HTML)) For Period viv:DisclosureOfAuthorizationsForRenderingPersonalMobileServiceTableTextBlock
374 30203 - Disclosure - BASIS OF PREPARATION AND PRESENTATION OF FINANCIAL STATEMENTS (Tables) Network

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375 Implied Table Table

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376 BASIS OF PREPARATION AND PRESENTATION OF FINANCIAL STATEMENTS Abstract viv:DisclosureOfBasisOfPreparationAndPresentationOfFinancialStatementsAbstract
377 Schedule of equity interests Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
378 Schedule of amendments adopted Concept (Text Block (HTML)) For Period viv:ScheduleOfIfrsAmendmentsAdoptedTableTextBlock
379 Schedule of classification and measurement of financial assets and liabilities Concept (Text Block (HTML)) For Period viv:ScheduleOfClassificationAndMeasurementOfFinancialAssetsAndLiabilitiesTableTextBlock
380 Schedule of changes in contractual assets, liabilities and incremental costs Concept (Text Block (HTML)) For Period viv:ScheduleOfChangesInContractualAssetsLiabilitiesAndIncrementalCostsTableTextBlock
381 Schedule of expected periods of realization of contractual liabilities Concept (Text Block (HTML)) For Period viv:ScheduleOfExpectedPeriodsOfRealizationOfContractualLiabilitiesTableTextBlock
382 Schedule of IFRS amendments Concept (Text Block (HTML)) For Period viv:DisclosureOfIfrsAmendmentsTableTextBlock
383 30303 - Disclosure - CASH AND CASH EQUIVALENTS (Tables) Network

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384 Implied Table Table

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385 CASH AND CASH EQUIVALENTS Abstract ifrs-full:CashAndCashEquivalentsAbstract
386 Schedule of cash and cash equivalents Concept (Text Block (HTML)) For Period viv:DisclosureOfCashAndCashEquivalentsTableTextBlock
387 30403 - Disclosure - TRADE ACCOUNTS RECEIVABLE (Tables) Network

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388 Implied Table Table

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389 TRADE ACCOUNTS RECEIVABLE Abstract viv:TradeAccountReceivablesAbstract
390 Schedule of trade accounts receivables Concept (Text Block (HTML)) For Period viv:DisclosureOfTradeAccountsReceivablesTableTextBlock
391 Schedule of accounts receivable balances related to the Soluciona IT Concept (Text Block (HTML)) For Period viv:DisclosureOfCurrentAndNoncurrentTradeAccountsReceivableRelatingToFinanceLeaseTableTextBlock
392 Schedule of aging list of gross trade accounts receivable Concept (Text Block (HTML)) For Period viv:DisclosureOfAgingListOfGrossTradeAccountsReceivableTableTextBlock
393 Schedule of amounts receivable, net of estimated losses for impairment of accounts receivable, by maturity Concept (Text Block (HTML)) For Period viv:DisclosureOfAgingListOfTradeAccountsReceivableNetOfEstimatedImpairmentLossesTableTextBlock
394 Schedule of changes in the estimated impairment losses for accounts receivable Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAllowanceForCreditLossesExplanatory
395 30503 - Disclosure - INVENTORIES (Tables) Network

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396 Implied Table Table

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397 INVENTORIES Abstract ifrs-full:ClassesOfInventoriesAbstract
398 Schedule of inventories Concept (Text Block (HTML)) For Period viv:IfrsScheduleOfInventoryCurrentTableTextBlock
399 30603 - Disclosure - PREPAID EXPENSES (Tables) Network

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400 Implied Table Table

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401 PREPAID EXPENSES Abstract ifrs-full:PrepaymentsAndAccruedIncomeAbstract
402 Schedule of prepaid expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPrepaymentsAndOtherAssetsExplanatory
403 30703 - Disclosure - DEFERRED TAXES AND TAXES RECOVERABLE (Tables) Network

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404 Implied Table Table

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405 INCOME AND SOCIAL CONTRIBUTION TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
406 Schedule of income and social contribution taxes recoverable Concept (Text Block (HTML)) For Period viv:DisclosureOfIncomeAndSocialContributionsTaxesRecoverableTableTextBlock
407 Schedule of income and social contribution taxes payable Concept (Text Block (HTML)) For Period viv:DisclosureOfIncomeAndSocialContributionsTaxesPayableTableTextBlock
408 Schedule of significant components of deferred income and social contribution taxes Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
409 Schedule of expected realization of deferred taxes Concept (Text Block (HTML)) For Period viv:DisclosureOfExpectedRealizationOfDeferredTaxesTableTextBlock
410 Schedule of reconciliation of income and social contribution tax expense Concept (Text Block (HTML)) For Period viv:DisclosureOfReconciliationOfIncomeTaxAndSocialContributionExpenseTableTextBlock
411 30803 - Disclosure - TAXES, CHARGES AND CONTRIBUTIONS RECOVERABLE (Tables) Network

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412 Implied Table Table

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413 TAXES, CHARGES AND CONTRIBUTIONS RECOVERABLE Abstract viv:TaxesChargesAndContributionsRecoverableAbstract
414 Schedule of taxes, charges and contributions recoverable Concept (Text Block (HTML)) For Period viv:TaxesChargesAndContributionsRecoverableTableTextBlock
415 30903 - Disclosure - JUDICIAL DEPOSITS AND GARNISHMENTS (Tables) Network

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416 Implied Table Table

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417 JUDICIAL DEPOSITS AND GARNISHMENTS Abstract viv:JudicialDepositsAndGarnishmentsAbstract
418 Schedule of judicial deposits and garnishments Concept (Text Block (HTML)) For Period viv:JudicialDepositsAndGarnishmentsTableTextBlock
419 Schedule of composition of the balances of the tax judicial deposits Concept (Text Block (HTML)) For Period viv:DisclosureOfCompositionOfBalancesOfTaxJudicialDepositsTableTextBlock
420 31003 - Disclosure - OTHER ASSETS (Tables) Network

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421 Implied Table Table

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422 OTHER ASSETS Abstract viv:OtherAssetAbstract
423 Schedule of other assets Concept (Text Block (HTML)) For Period viv:DisclosureOfOtherAssetsTableTextBlock
424 31103 - Disclosure - INVESTMENTS (Tables) Network

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425 Implied Table Table

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426 INVESTMENTS Abstract ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesAbstract
427 Summary of the relevant financial data of the investees in which the Company holds a stake Concept (Text Block (HTML)) For Period viv:DisclosureOfSignificantFinancialData
428 Schedule of changes in investments Concept (Text Block (HTML)) For Period viv:DisclosureOfChangesInInvestments
429 31203 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables) Network

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430 Implied Table Table

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431 PROPERTY, PLANT AND EQUIPMENT Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
432 Schedule of breakdown of and changes to property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
433 31303 - Disclosure - INTANGIBLE ASSETS (Tables) Network

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434 Implied Table Table

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435 INTANGIBLE ASSETS Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
436 Schedule of breakdown, changes and amortization rates of intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
437 Schedule of breakdown of goodwill Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGoodwillExplanatory
438 31403 - Disclosure - IMPAIRMENT OF NONFINANCIAL ASSETS (Tables) Network

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439 Implied Table Table

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440 IMPAIRMENT OF NONFINANCIAL ASSETS Abstract ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract
441 Schedule of sensitivity to changes in assumptions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory
442 31503 - Disclosure - PERSONNEL, SOCIAL CHARGES AND BENEFITS (Tables) Network

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443 Implied Table Table

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444 PERSONNEL, SOCIAL CHARGES AND BENEFITS Abstract ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
445 Schedule of personnel, social charges and benefits Concept (Text Block (HTML)) For Period viv:DisclosureOfEmployeeBenefitsTableTextBlock
446 31603 - Disclosure - TRADE ACCOUNTS PAYABLE (Tables) Network

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447 Implied Table Table

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448 TRADE ACCOUNTS PAYABLE Abstract ifrs-full:TradeAndOtherPayablesAbstract
449 Schedule of trade accounts payable Concept (Text Block (HTML)) For Period viv:DisclosureOfTradeAndOtherPayablesTableTextBlock
450 31703 - Disclosure - TAXES, CHARGES AND CONTRIBUTIONS (Tables) Network

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451 Implied Table Table

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452 TAXES, CHARGES AND CONTRIBUTIONS Abstract viv:TaxesChargesAndContributionsAbstract
453 Schedule of taxes, charges and contributions Concept (Text Block (HTML)) For Period viv:TaxesChargesAndContributionsTableTextBlock
454 31803 - Disclosure - DIVIDENDS AND INTEREST ON EQUITY (IOE) (Tables) Network

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455 Implied Table Table

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456 DIVIDENDS AND INTEREST ON EQUITY (IOE) Abstract viv:DisclosureOfDividendsAndInterestOnEquityAbstract
457 Schedule of breakdown of dividend and interest on equity Concept (Text Block (HTML)) For Period viv:DisclosureOfDividendsAndInterestOnEquityTableTextBlock
458 Schedule of changes in dividend and interest on equity Concept (Text Block (HTML)) For Period viv:DisclosureOfChangesInDividendsAndInterestOnEquityTableTextBlock
459 31903 - Disclosure - PROVISIONS AND CONTINGENCIES (Tables) Network

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460 Disclosure of other provisions [table] Table

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461 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
462 Other provisions [member] Member ifrs-full:OtherProvisionsMember
463 Labor Member viv:ProvisionForLaborMember
464 Tax Member ifrs-full:ProvisionForTaxesOtherThanIncomeTaxMember
465 Civil Member ifrs-full:LegalProceedingsProvisionMember
466 Regulatory Member viv:RegulatoryProvisionMember
467 PROVISIONS AND CONTINGENCIES LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
468 Schedule of breakdown of changes in provisions for cases in which an unfavorable outcome is probable, in addition to contingent liabilities and provisions for dismantling Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherProvisionsExplanatory
469 Schedule of provision contingencies Concept (Text Block (HTML)) For Period viv:DisclosureOfProvisionContingenciesTableTextBlock
470 Schedule of guarantees granted by contingency Concept (Text Block (HTML)) For Period viv:ScheduleOfGuaranteesOfContingenciesTableTextBlock
471 32003 - Disclosure - LOANS, FINANCING AND DEBENTURES (Tables) Network

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472 Disclosure of detailed information about borrowings [table] Table

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 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
473 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
474 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
475 Loans and financing Member viv:LoansAndFinancingMember
476 Debentures Member viv:DebenturesMember
477 LOANS, FINANCING AND DEBENTURES LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
478 Schedule of borrowings Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
479 Schedule of balance of amounts payable relating to finance leases Concept (Text Block (HTML)) For Period viv:ScheduleOfComponentsOfBalanceOfAmountsPayableForFinanceLeasesByLessee
480 Schedule of aging list of finance lease payable Concept (Text Block (HTML)) For Period viv:ScheduleOfMaturityAnalysisOfNominalValueAndPresentValuePayableOfFinanceLeasesByLessee
481 Schedule of repayments by year of maturity Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities
482 Schedule of changes in borrowings Concept (Text Block (HTML)) For Period viv:ScheduleOfChangesInBorrowingsTableTextBlock
483 Summary of funding and payments Concept (Text Block (HTML)) For Period viv:DisclosureOfFundingAndPaymentsOfBorrowingsTableTextBlock
484 32103 - Disclosure - DEFERRED INCOME (Tables) Network

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485 Implied Table Table

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486 DEFERRED INCOME Abstract ifrs-full:AccrualsAndDeferredIncomeAbstract
487 Schedule of deferred income Concept (Text Block (HTML)) For Period viv:ScheduleOfDeferredRevenueTableTextBlock
488 32203 - Disclosure - OTHER LIABILITIES (Tables) Network

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489 Implied Table Table

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490 OTHER LIABILITIES Abstract viv:IfrsOtherLiabilitiesAbstract
491 Schedule of other liabilities Concept (Text Block (HTML)) For Period viv:ScheduleOfOtherLiabilitiesTableTextBlock
492 32303 - Disclosure - EQUITY (Tables) Network

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493 Implied Table Table

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494 EQUITY Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
495 Schedule of distribution of capital Concept (Text Block (HTML)) For Period viv:DisclosureOfDistributionOfCapitalTableTextBlock
496 Schedule of other capital reserves Concept (Text Block (HTML)) For Period viv:DisclosureOfOtherCapitalReservesTableTextBlock
497 Schedule of treasury shares Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTreasurySharesExplanatory
498 Schedule of income reserves Concept (Text Block (HTML)) For Period viv:DisclosureOfIncomeReservesTableTextBlock
499 Schedule of calculation of dividends and interest on equity Concept (Text Block (HTML)) For Period viv:DisclosureOfCalculationOfDividendsAndInterestOnEquityTableTextBlock
500 Schedule of proposed for deliberation per share Concept (Text Block (HTML)) For Period viv:DisclosureOfProposedDividendDeliberationPerShareTableTextBlock
501 Schedule of allocation of interim dividends and interest on equity Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDividendsExplanatory
502 Schedule of changes in other comprehensive income Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory
503 Schedule of calculation of earnings per share Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
504 32403 - Disclosure - NET OPERATING REVENUE (Tables) Network

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505 Implied Table Table

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506 NET OPERATING REVENUE Abstract ifrs-full:RevenueAbstract
507 Schedule of net operating revenue Concept (Text Block (HTML)) For Period viv:ScheduleOfNetOperatingRevenueTableTextBlock
508 32503 - Disclosure - OPERATING COSTS AND EXPENSES (Tables) Network

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509 Implied Table Table

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510 OPERATING COSTS AND EXPENSES Abstract viv:DisclosureOfOperatingCostsExpensesAbstract
511 Schedule of operating costs and expenses Concept (Text Block (HTML)) For Period viv:DisclosureOfOperatingCostsAndExpensesTableTextBlock
512 32603 - Disclosure - OTHER OPERATING INCOME (EXPENSES) (Tables) Network

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513 Implied Table Table

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516 32703 - Disclosure - FINANCIAL INCOME (EXPENSES) (Tables) Network

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517 Implied Table Table

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518 FINANCIAL INCOME (EXPENSES) Abstract viv:DisclosureOfFinancialIncomeExpensesAbstract
519 Schedule of financial income (expenses) Concept (Text Block (HTML)) For Period viv:DisclosureOfFinancialIncomeExpensesTableTextBlock
520 32803 - Disclosure - BALANCES AND TRANSACTIONS WITH RELATED PARTIES (Tables) Network

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521 Implied Table Table

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522 BALANCES AND TRANSACTIONS WITH RELATED PARTIES Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
523 Schedule of consolidated balances with the related parties Concept (Text Block (HTML)) For Period viv:DisclosureOfBalancesWithRelatedPartiesTableTextBlock
524 33003 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS (Tables) Network

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 http://www.telefonica.com/role/DisclosurePensionPlansAndOtherPostEmploymentBenefitsTables
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536 Schedule of plans sponsored by the Company and its subsidiaries and related benefit types Concept (Text Block (HTML)) For Period viv:ScheduleOfPlansSponsoredByCompanyAndRelatedBenefitTypesTableTextBlock
537 Schedule of reconciliation of net liabilities (assets) Concept (Text Block (HTML)) For Period viv:DisclosureOfReconciliationOfAssetsAndLiabilitiesTableTextBlock
538 Summary of total expenses recognized in the income statement Concept (Text Block (HTML)) For Period viv:DisclosureOfTotalExpensesRecognizedInIncomeStatementTableTextBlock
539 Summary of amounts recognized in other comprehensive income (loss) Concept (Text Block (HTML)) For Period viv:DisclosureOfAmountsRecognizedInOtherComprehensiveIncomeLossTableTextBlock
540 Schedule of changes in amount net of liability (asset) of defined benefit, net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory
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542 Schedule of sponsoring company contributions projected for 2019 Concept (Text Block (HTML)) For Period viv:DisclosureOfSponsoringCompanySProjectedContributionsTableTextBlock
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544 Schedule of actuarial assumptions Concept (Text Block (HTML)) For Period viv:DisclosureOfActuarialAssumptionsTableTextBlock
545 Schedule of impacts on the plans' defined benefit liabilities due to the new definition of the actuarial assumptions Concept (Text Block (HTML)) For Period viv:DisclosureOfImpactsOnPlansDefinedBenefitLiabilitiesDueToNewDefinitionOfActuarialAssumptionsTableTextBlock
546 Schedule of sensitivity analysis for actuarial assumptions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory
547 Summary of allocation of plan assets Concept (Text Block (HTML)) For Period viv:DisclosureOfAllocationOfPlanAssetsTableTextBlock
548 33103 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT (Tables) Network

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549 Implied Table Table

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551 Schedule of consolidated derivatives financial instruments that are registered with B3 and classified as swaps and that do not require margin deposits Concept (Text Block (HTML)) For Period viv:DisclosureOfDerivativesFinancialInstrumentsClassifiedAsSwapsThatDoNotRequireMarginDepositsTableTextBlock
552 Schedule of breakdown of swaps maturing after December 31, 2018 Concept (Text Block (HTML)) For Period viv:DisclosureOfBreakdownOfMaturityOfSwapsTableTextBlock
553 Schedule of sensitivity analysis net exposure Concept (Text Block (HTML)) For Period viv:DisclosureSensitivityAnalysisNetExposureTableTextBlock
554 Schedule of sensitivity analysis assumptions Concept (Text Block (HTML)) For Period viv:DisclosureOfSensitivityAnalysisAssumptionsTableTextBlock
555 Schedule of composition of financial assets and liabilities Concept (Text Block (HTML)) For Period viv:DisclosureOfCompositionOfFinancialAssetsAndLiabilitiesTableTextBlock
556 Schedule of Company's ratio of consolidated debt to shareholders' equity Concept (Text Block (HTML)) For Period viv:DisclosureOfCompanysRatioOfDebtToEquityTableTextBlock
557 Summary the maturity profile of our consolidated financial liabilities as set forth in loan agreements Concept (Text Block (HTML)) For Period viv:DisclosureOfMaturityProfileOfOurFinancialLiabilitiesAsSetForthInLoanAgreementsTableTextBlock
558 33303 - Disclosure - COMMITMENTS AND GUARANTEES (RENTALS) (Tables) Network

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559 Implied Table Table

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561 Schedule of non-cancellable operating agreements Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
562 33403 - Disclosure - ADDITIONAL INFORMATION ON CASH FLOWS (Tables) Network

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563 Implied Table Table

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565 Schedule of reconciliation of cash flow financing activities Concept (Text Block (HTML)) For Period viv:DisclosureOfReconciliationOfCashFlowFinancingActivitiesTableTextBlock
566 Schedule of main transactions that do not involve cash Concept (Text Block (HTML)) For Period viv:DisclosureOfNonCashTransactionOfInvestmentsAndFinancingTableTextBlock
567 33503 - Disclosure - ADDITIONAL INFORMATION ON THE CONSOLIDATED INCOME STATEMENT - IFRS 15 - UNAUDITED (Tables) Network

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568 Implied Table Table

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570 Schedule of effects of the adoption of IFRS 15 Concept (Text Block (HTML)) For Period viv:ScheduleOfConsolidatedIncomeStatementTableTextBlock
571 40101 - Disclosure - OPERATIONS (Details) Network

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572 Disclosure of nature of operations [table] Table

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586 Percentage of service concession fees based on prior year SMP revenues in fifteen year of agreement term Concept (Percent) As Of viv:PercentageOfServiceConcessionFeesBasedOnPriorYearPersonalMobileServiceRevenuesInFifteenYearOfAgreementTerm
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589 40201 - Disclosure - BASIS OF PREPARATION AND PRESENTATION OF FINANCIAL STATEMENTS (Details) Network

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590 Disclosure of subsidiaries [table] Table

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593 Terra Networks and POP Member ifrs-full:SubsidiariesMember
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595 Terra Networks Member viv:TerraNetworksMember
596 TGLog Member viv:TelefonicaTransportesELogisticaLtdaMember
597 POP Internet Ltda ("POP") Member viv:PopInternetLtdaMember
598 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
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602 Companhia AIX de Participacoes Member viv:CompanhiaAixDeParticipacoesMember
603 Companhia ACT de Participacoes (ACT) Member viv:CompanhiaActDeParticipacoesMember
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611 Ownership interest in jointly-controlled subsidiary (as a percent) Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointVenture
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613 Increase (Decrease) in retained earnings before deferred taxes Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings
614 40202 - Disclosure - BASIS OF PREPARATION AND PRESENTATION OF FINANCIAL STATEMENTS - Changes in contractual assets, liabilities and incremental costs - (Details) Network

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615 Disclosure of financial assets [table] Table

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618 Cost Member ifrs-full:GrossCarryingAmountMember
619 Accumulated depreciation / amortization Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
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622 Contract assets at beginning of period Concept (Monetary) As Of Debit ifrs-full:ContractAssets
623 Additions Concept (Monetary) For Period Debit viv:ContractAssetsAdditions
624 Write-offs, net Concept (Monetary) For Period Credit viv:ContractAssetsWriteOff
625 Contract assets at end of period Concept (Monetary) As Of Debit ifrs-full:ContractAssets
626 Current Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
627 Contractual liabilities Abstract ifrs-full:ContractLiabilitiesAbstract
628 Contract liabilities at beginning of period Concept (Monetary) As Of Credit ifrs-full:ContractLiabilities
629 Reclassification Concept (Monetary) For Period Credit viv:ReclassificationToContractualLiabilities
630 Additions Concept (Monetary) For Period Credit viv:ContractLiabilitiesAdditions
631 Write off Concept (Monetary) For Period Debit viv:ContractLiabilitiesWriteOff
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633 Current Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
634 Non-current Concept (Monetary) As Of Credit ifrs-full:NoncurrentContractLiabilities
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637 Additions Concept (Monetary) For Period Debit viv:IncrementalCostsAdditions
638 Write off Concept (Monetary) For Period Credit viv:IncrementalCostsWriteOff
639 Incremental costs at end of period Concept (Monetary) As Of Debit viv:IncrementalCosts
640 Current Concept (Monetary) As Of Debit viv:CurrentIncrementalCosts
641 Non-current Concept (Monetary) As Of Debit viv:NonCurrentIncrementalCosts
642 40203 - Disclosure - BASIS OF PREPARATION AND PRESENTATION OF FINANCIAL STATEMENTS - Contractual liabilities and Leases - (Details) Network

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643 Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [table] Table

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 ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateTable
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648 2021 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
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656 Rights-of-use assets Concept (Monetary) As Of Debit ifrs-full:RightofuseAssets
657 40301 - Disclosure - CASH AND CASH EQUIVALENTS (Details) Network

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658 Implied Table Table

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661 Short-term investments Concept (Monetary) As Of Debit ifrs-full:ShorttermInvestmentsClassifiedAsCashEquivalents
662 Total Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
663 40401 - Disclosure - TRADE ACCOUNTS RECEIVABLE (Details) Network

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 http://www.telefonica.com/role/DisclosureTradeAccountsReceivableDetails
664 Disclosure of trade accounts receivables [table] Table

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671 Unbilled amounts Concept (Monetary) As Of Debit viv:TradeAndOtherReceivablesUnbilledAmounts
672 Interconnection amounts Concept (Monetary) As Of Debit viv:TradeAndOtherReceivablesInterconnectionAmounts
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675 Current Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
676 Noncurrent Concept (Monetary) As Of Debit ifrs-full:NoncurrentTradeReceivables
677 40402 - Disclosure - TRADE ACCOUNTS RECEIVABLE - Noncurrent trade accounts receivable (Details) Network

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678 Disclosure of trade accounts receivables [table] Table

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688 Impact of the present-value adjustment on resale of good to other entities Concept (Monetary) As Of Credit viv:PresentValueAdjustmentOnResaleOfGoodsToOtherEntities
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692 Impact of the present-value adjustment on resale of good to legal entities Concept (Monetary) As Of Debit ifrs-full:UnearnedFinanceIncomeOnFinanceLease
693 40403 - Disclosure - TRADE ACCOUNTS RECEIVABLE, NET - Current and non current trade accounts receivable (Details) Network

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694 Disclosure of financial assets [table] Table

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703 Deferred financial income Concept (Monetary) As Of Debit ifrs-full:UnearnedFinanceIncomeOnFinanceLease
704 Present value of accounts receivable Concept (Monetary) As Of Debit ifrs-full:MinimumFinanceLeasePaymentsReceivableAtPresentValue
705 Estimated impairment losses Concept (Monetary) As Of Credit viv:EstimatedImpairmentLossesInFinanceLease
706 Net amount receivable Concept (Monetary) As Of Debit ifrs-full:NetInvestmentInFinanceLease
707 Current Concept (Monetary) As Of Debit viv:CurrentNetInvestmentInFinanceLease
708 Noncurrent Concept (Monetary) As Of Debit viv:NoncurrentNetInvestmentInFinanceLease
709 40404 - Disclosure - TRADE ACCOUNTS RECEIVABLE, NET - Aging list of gross trade accounts receivable (Details) Network

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710 Disclosure of financial assets [table] Table

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717 Past due status [axis] Axis ifrs-full:PastDueStatusAxis
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720 From 1 to 5 years Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
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723 Present value of accounts receivable Concept (Monetary) As Of Debit ifrs-full:MinimumFinanceLeasePaymentsReceivableAtPresentValue
724 Unsecured residual values resulting in benefits to the lessor Concept (Monetary) As Of Debit ifrs-full:DiscountedUnguaranteedResidualValueOfAssetsSubjectToFinanceLease
725 Contingent payments recognized as revenue Concept (Monetary) For Period Credit ifrs-full:ContingentRentsRecognisedAsIncome
726 40405 - Disclosure - TRADE ACCOUNTS RECEIVABLE, NET - Aging list of trade accounts receivable (Details) Network

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727 Disclosure of trade accounts receivables [table] Table

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730 Falling due Member ifrs-full:CurrentMember
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732 Overdue - 31 to 60 days Member ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember
733 Overdue - 61 to 90 days Member ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember
734 Overdue - 91 to 120 days Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanFourMonthsMember
735 Overdue - over 120 days Member ifrs-full:LaterThanFourMonthsMember
736 Aging list of trade accounts receivable LineItems viv:DisclosureOfTradeAccountsReceivablesLineItems
737 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:TradeReceivables
738 40406 - Disclosure - TRADE ACCOUNTS RECEIVABLE, NET - Estimated impairment losses for accounts receivable (Details) Network

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739 Disclosure of estimated impairment losses for accounts receivable [table] Table

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751 40501 - Disclosure - INVENTORIES (Details) Network

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752 IFRS Inventory, Current [Table] Table

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761 Total Concept (Monetary) As Of Debit ifrs-full:Inventories
762 40601 - Disclosure - PREPAID EXPENSES (Details) Network

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763 Implied Table Table

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766 Insurance Concept (Monetary) As Of Debit viv:PrepaidInsurances
767 Rental Concept (Monetary) As Of Debit viv:PrepaidRental
768 Software and networks maintenance Concept (Monetary) As Of Debit viv:PrepaidSoftwareAndNetworksMaintenance
769 Incremental costs - IFRS 15 (Note 2.f) Concept (Monetary) As Of Debit viv:PrepaidIncrementalCosts
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773 Total Concept (Monetary) As Of Debit ifrs-full:Prepayments
774 Current Concept (Monetary) As Of Debit ifrs-full:CurrentPrepayments
775 Noncurrent Concept (Monetary) As Of Debit ifrs-full:NoncurrentPrepayments
776 40701 - Disclosure - INCOME AND SOCIAL CONTRIBUTION TAXES - Income and Social Contribution taxes recoverable (Details) Network

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 http://www.telefonica.com/role/DisclosureIncomeAndSocialContributionTaxesIncomeAndSocialContributionTaxesRecoverableDetails
777 Implied Table Table

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*

 implied:Table
778 INCOME AND SOCIAL CONTRIBUTION TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
779 Income taxes recoverable Concept (Monetary) As Of Debit viv:IncomeTaxesRecoverableCurrent
780 Social contribution taxes recoverable Concept (Monetary) As Of Debit viv:SocialContributionTaxesRecoverableCurrent
781 Total Concept (Monetary) As Of Debit viv:IncomeAndSocialContributionTaxesRecoverableCurrent
782 40702 - Disclosure - INCOME AND SOCIAL CONTRIBUTION TAXES - Income and Social Contribution taxes payable (Details) Network

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 http://www.telefonica.com/role/DisclosureIncomeAndSocialContributionTaxesIncomeAndSocialContributionTaxesPayableDetails
783 Implied Table Table

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*

 implied:Table
784 INCOME AND SOCIAL CONTRIBUTION TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
785 Income taxes payable Concept (Monetary) As Of Credit viv:IncomeTaxesPayableCurrent
786 Social contribution taxes payable Concept (Monetary) As Of Credit viv:SocialContributionTaxesPayableCurrent
787 Total Concept (Monetary) As Of Credit viv:IncomeAndSocialContributionTaxesPayableCurrent
788 40703 - Disclosure - INCOME AND SOCIAL CONTRIBUTION TAXES - Deferred taxes (Details) Network

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*

 http://www.telefonica.com/role/DisclosureIncomeAndSocialContributionTaxesDeferredTaxesDetails
789 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
790 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
791 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
792 Income and social contribution taxes on tax losses Member viv:IncomeAndSocialContributionTaxesOnTaxLossesMember
793 Income and social contribution taxes on temporary differences Member viv:IncomeAndSocialContributionTaxesOnTemporaryDifferencesMember
794 Provisions for legal, labor, tax civil and regulatory contingencies Member viv:ProvisionsForLegalLaborTaxCivilAndRegulatoryContingenciesMember
795 Trade accounts payable and other provisions Member viv:TradeAccountsPayableAndOtherProvisionsMember
796 Estimated losses on impairment of accounts receivable Member viv:EstimatedLossesOnImpairmentOfAccountsReceivableMember
797 Customer portfolio and trademarks Member viv:CustomerPortfolioAndTrademarksMember
798 Estimated losses from modems and other P&E items Member viv:EstimatedLossesFromModemsAndOtherPEItemsMember
799 Pension plans and other post-employment benefits Member viv:PensionPlansAndOtherPostEmploymentBenefitsMember
800 Profit sharing Member viv:ProfitSharingMember
801 Provision for loyalty program Member viv:ProvisionForLoyaltyProgramMember
802 Accelerated accounting depreciation Member viv:AcceleratedAccountingDepreciationMember
803 Estimated impairment losses on inventories Member viv:EstimatedImpairmentLossesOnInventoriesMember
804 Derivative transactions Member viv:DerivativeFinancialInstrumentsMember
805 Licenses Member viv:LicensesMember
806 Goodwill (Spanish e Navytree, Vivo Part. and GVTPart.) Member viv:EffectsOfGoodwillGeneratedInSpanishENavytreeVivoPartAndGvtpartMember
807 Property, plant and equipment of small value Member viv:EffectsOfPropertyPlantAndEquipmentOfSmallValueMember
808 Technological Innovation Law Member viv:TechnologicalInnovationLawMember
809 Other temporary differences Member viv:IncomeAndSocialContributionTaxesOnOtherTemporaryDifferencesMember
810 DEFERRED TAXES AND TAXES RECOVERABLE LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
811 Balance at beginning Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
812 Income statement Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
813 Comprehensive income Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
814 Other Concept (Monetary) For Period Credit viv:OtherIncreaseDecreaseInDeferredTaxLiabilityAsset
815 Business combinations (Note 1.c.2) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset
816 Effects of the initial adoption of IFRS 9 and IFRS 15 Concept (Monetary) For Period Credit viv:IncreaseDecreaseThroughEffectsOfInitialAdoptionOfIfrs9AndIfrs15DeferredTaxLiabilityAsset
817 Balance at ending Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
818 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
819 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
820 Net deferred tax assets Concept (Monetary) As Of Debit ifrs-full:NetDeferredTaxAssets
821 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
822 Percentage of tax bases limit used to offset tax losses Concept (Percent) For Period viv:PercentageOfTaxBases
823 Deferred tax credits (income and social contribution tax losses) were not recognized in indirect subsidiaries Concept (Monetary) As Of ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures
824 40704 - Disclosure - INCOME AND SOCIAL CONTRIBUTION TAXES - Projections (Details) Network

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 http://www.telefonica.com/role/DisclosureIncomeAndSocialContributionTaxesProjectionsDetails
825 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
826 Maturity [axis] Axis ifrs-full:MaturityAxis
827 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
828 2019 Member ifrs-full:LaterThanOneYearMember
829 2020 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
830 2021 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
831 2022 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
832 2023 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
833 Over five years Member ifrs-full:LaterThanFiveYearsMember
834 DEFERRED TAXES AND TAXES RECOVERABLE LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
835 Total Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
836 40705 - Disclosure - INCOME AND SOCIAL CONTRIBUTION TAXES - Reconciliation of income tax and social contribution expense (Details) Network

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 http://www.telefonica.com/role/DisclosureIncomeAndSocialContributionTaxesReconciliationOfIncomeTaxAndSocialContributionExpenseDetails
837 Implied Table Table

*

*

 implied:Table
838 INCOME AND SOCIAL CONTRIBUTION TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
839 Statutory tax rate Concept (Pure) For Period viv:IncomeTaxAndSocialContributionTaxCombinedTaxRate
840 Income tax rate Concept (Percent) For Period viv:IncomeTaxRate
841 Social contribution tax rate Concept (Percent) For Period viv:SocialContributionTaxRate
842 Income before taxes Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
843 Income and social contribution tax expenses, at the tax rate of 34% Concept (Monetary) For Period Debit viv:TaxExpenseIncomeIncomeTaxAndSocialContributionTaxAtCombinedTaxRate
844 Equity pickup, net of effects from interest on equity received and surplus value of the assets purchased attributed to the Company (Note 12) Concept (Monetary) For Period Credit viv:TaxEffectsOfEquityPickupNetOfEffectsFromInterestOnEquityReceivedAndSurplusValueOfAssetsPurchased
845 Unclaimed interest on equity Concept (Monetary) For Period Debit viv:TaxEffectsOfUnclaimedInterestOnEquity
846 Temporary differences in subsidiaries Concept (Monetary) For Period Credit viv:TaxEffectOfTemporaryDifferencesInSubsidiaries
847 Non-deductible expenses, gifts, incentives Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
848 Deferred taxes recognized in subsidiaries on tax loss carryforwards, negative basis and temporary differences referring to prior years Concept (Monetary) For Period Credit viv:TaxEffectOfDeferredTaxesRecognizedInSubsidiariesOnTaxLossCarryforwardsNegativeBasisAndTemporaryDifferencesReferringToPriorYears
849 Tax benefit related to interest on equity allocated Concept (Monetary) For Period Credit viv:TaxEffectsOfInterestOnEquityAllocated
850 Other (additions) exclusions Concept (Monetary) For Period Debit viv:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndCombinedIncomeTaxAndSocialContributionTaxTaxExpenseIncome
851 Tax debits Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
852 Effective rate Concept (Pure) For Period viv:CombinedIncomeTaxAndSocialContributionEffectiveTaxRate
853 Current income and social contribution taxes Concept (Monetary) For Period Debit viv:CombinedCurrentIncomeTaxAndSocialContributionTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
854 Deferred income and social contribution taxes Concept (Monetary) For Period Debit viv:CombinedDeferredIncomeTaxAndSocialContributionTaxExpenseIncome
855 40801 - Disclosure - TAXES, CHARGES AND CONTRIBUTIONS RECOVERABLE (Details) Network

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 http://www.telefonica.com/role/DisclosureTaxesChargesAndContributionsRecoverableDetails
856 Disclosure of Taxes, Charges and Contributions Recoverable [Table] Table

*

*

 viv:DisclosureOfTaxesChargesAndContributionsRecoverableTable
857 Range [axis] Axis ifrs-full:RangeAxis
858 Ranges [member] Member ifrs-full:RangesMember
859 Minimum Member ifrs-full:BottomOfRangeMember
860 Maximum Member ifrs-full:TopOfRangeMember
861 TAXES, CHARGES AND CONTRIBUTIONS RECOVERABLE LineItems viv:DisclosureOfTaxesChargesAndContributionsRecoverableLineItems
862 State VAT (ICMS) Concept (Monetary) As Of Debit ifrs-full:ValueAddedTaxReceivables
863 Withholding taxes and contributions Concept (Monetary) As Of Debit viv:WithholdingTaxesAndContributions
864 PIS and COFINS Concept (Monetary) As Of Debit viv:SocialContributionTaxRecoverableForSocialIntegrationProgramAndSocialSecurityFinancing
865 Fistel, INSS, ISS and other taxes Concept (Monetary) As Of Debit viv:FistelInssIssAndOtherTaxes
866 Total Concept (Monetary) As Of Debit viv:TaxesChargesAndContributionsRecoverable
867 Current Concept (Monetary) As Of Debit viv:TaxesChargesAndContributionsRecoverableCurrent
868 Non-current Concept (Monetary) As Of Debit viv:TaxesChargesAndContributionsRecoverableNonCurrent
869 Tax credits offsetting period Concept (xbrli:durationItemType) For Period viv:TaxCreditsOffsettingPeriod
870 Deferred tax credits from acquisition of property and equipment Concept (Monetary) As Of Debit viv:DeferredTaxCreditsFromAcquisitionOfPropertyAndEquipment
871 Tax credits from PIS and COFINS Concept (Monetary) As Of Debit viv:DeferredTaxCreditsOfProgramOfSocialIntegrationAndContributionForFinancingOfSocialSecurity
872 Current tax credits from PIS and COFINS Concept (Monetary) As Of Debit viv:CurrentTaxCreditsOfProgramOfSocialIntegrationAndContributionForFinancingOfSocialSecurity
873 Non-current tax credits from PIS and COFINS Concept (Monetary) As Of Debit viv:NonCurrentTaxCreditsOfProgramOfSocialIntegrationAndContributionForFinancingOfSocialSecurity
874 Contingent assets from in-progress lawsuits Concept (Monetary) As Of Debit viv:ContingentAssetsFromInProgressLawsuits
875 40901 - Disclosure - JUDICIAL DEPOSITS AND GARNISHMENTS - Judicial Deposits and garnishments (Details) Network

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 http://www.telefonica.com/role/DisclosureJudicialDepositsAndGarnishmentsJudicialDepositsAndGarnishmentsDetails
876 Implied Table Table

*

*

 implied:Table
877 JUDICIAL DEPOSITS AND GARNISHMENTS Abstract viv:JudicialDepositsAndGarnishmentsAbstract
878 Tax Concept (Monetary) As Of Debit viv:JudicialTaxDeposits
879 Labor Concept (Monetary) As Of Debit viv:JudicialLaborDeposits
880 Civil Concept (Monetary) As Of Debit viv:JudicialCivilDeposits
881 Regulatory Concept (Monetary) As Of Debit viv:JudicialRegulatoryDeposits
882 Total Concept (Monetary) As Of Debit viv:JudicialDeposits
883 Garnishments Concept (Monetary) As Of Debit viv:Garnishments
884 Total Concept (Monetary) As Of Debit ifrs-full:RestrictedCashAndCashEquivalents
885 Current Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
886 Non current Concept (Monetary) As Of Debit ifrs-full:NoncurrentRestrictedCashAndCashEquivalents
887 40902 - Disclosure - JUDICIAL DEPOSITS AND GARNISHMENTS - Tax related judicial Deposits (Details) Network

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 http://www.telefonica.com/role/DisclosureJudicialDepositsAndGarnishmentsTaxRelatedJudicialDepositsDetails
888 Type of taxes [Table] Table

*

*

 viv:TypeOfTaxesTable
889 Type of Taxes [Axis] Axis viv:TypeOfTaxesAxis
890 Type of taxes [member] Member viv:TypeOfTaxesMember
891 Contribution to Empresa Brasil de Comunicacao (EBC) Member viv:ContributionToEmpresaBrasilDeComunicacaoEbcMember
892 Telecommunications Inspection Fund (FISTEL) Member viv:TelecommunicationsInspectionFundMember
893 Corporate Income Tax (IRPJ) and Social Contribution Tax (CSLL) Member viv:CorporateIncomeTaxIrpjAndSocialContributionTaxCsllMember
894 Universal Telecommunication Services Fund (FUST) Member viv:UniversalTelecommunicationServicesFundFustMember
895 Social Contribution Tax for Intervention in the Economic Order (CIDE) Member viv:SocialContributionTaxForInterventionInEconomicOrderCideMember
896 State Value-Added Tax (ICMS) Member viv:StateValueAddedTaxIcmsMember
897 Social Security, work accident insurance (SAT) and funds to third parties (INSS) Member viv:SocialSecurityWorkAccidentInsuranceSatAndFundsToThirdPartiesInssMember
898 Withholding Income Tax (IRRF) Member viv:WithholdingIncomeTaxIrrfMember
899 Contribution tax on gross revenue for Social Integration Program (PIS) and for Social Security Financing (COFINS) Member viv:ContributionTaxMember
900 Other taxes, charges and contributions Member viv:OtherTaxesChargesAndContributionsMember
901 JUDICIAL DEPOSITS AND GARNISHMENTS LineItems viv:TypeOfTaxesLineItems
902 Judicial tax deposits Concept (Monetary) As Of Debit viv:JudicialTaxDeposits
903 Deposit converted into income Concept (Monetary) For Period Credit viv:DepositConvertedIntoIncome
904 Deposit withdrawn by the company Concept (Monetary) For Period Debit viv:DepositWithdrawnByCompany
905 41001 - Disclosure - OTHER ASSETS (Details) Network

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 http://www.telefonica.com/role/DisclosureOtherAssetsDetails
906 Implied Table Table

*

*

 implied:Table
907 OTHER ASSETS Abstract viv:OtherAssetAbstract
908 Advances to employees and suppliers Concept (Monetary) As Of Debit viv:AdvancesToEmployeesAndSuppliers
909 Related-party receivables (Note 28) Concept (Monetary) As Of Debit viv:OtherReceivablesDueFromRelatedParties
910 Receivables from suppliers Concept (Monetary) As Of Debit viv:ReceivablesFromSuppliers
911 Surplus from post-employment benefit plans (Note 30) Concept (Monetary) As Of Debit ifrs-full:RecognisedAssetsDefinedBenefitPlan
912 Other amounts receivable Concept (Monetary) As Of Debit ifrs-full:OtherReceivables
913 Total Concept (Monetary) As Of Debit ifrs-full:OtherAssets
914 Current Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
915 Noncurrent Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
916 41101 - Disclosure - INVESTMENTS (Details) Network

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 http://www.telefonica.com/role/DisclosureInvestmentsDetails
917 Disclosure of subsidiaries [table] Table

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*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
918 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
919 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
920 Alianca / AIX / ACT Member viv:AliancaAtlanticaHoldingB.v.CompanhiaActDeParticipacoesAndCompanhiaAixDeParticipacoesMember
921 INVESTMENTS LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
922 Ownership interest in joint ventures (as a percent) Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointVenture
923 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
924 Noncurrent assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
925 TOTAL ASSETS Concept (Monetary) As Of Debit ifrs-full:Assets
926 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
927 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
928 Equity Concept (Monetary) As Of Credit ifrs-full:Equity
929 TOTAL LIABILITIES AND EQUITY Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
930 Investment Book value Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
931 Net operating income Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfTelecommunicationServices
932 Operating costs and expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
933 Financial income (expenses), net Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
934 Income and social contribution taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
935 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
936 Equity pickup, according to interest held Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
937 41102 - Disclosure - INVESTMENTS - Changes in investments (Details) Network

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 http://www.telefonica.com/role/DisclosureInvestmentsChangesInInvestmentsDetails
938 Disclosure of subsidiaries [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
939 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
940 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
941 Joint ventures Member ifrs-full:JointVenturesMember
942 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
943 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
944 Other investments Member viv:IfrsOtherInvestmentsMember
945 INVESTMENTS LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
946 Balances at beginning of the period Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
947 Equity pickup Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
948 Provision for losses on investments Concept (Monetary) For Period Debit viv:ProvisionForLossesOnInvestments
949 Other comprehensive income Concept (Monetary) For Period Debit viv:OtherComprehensiveIncomeRelatingToChangeInInvestments
950 Balances at end of the period Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
951 41201 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details) Network

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 http://www.telefonica.com/role/DisclosurePropertyPlantAndEquipmentDetails
952 Disclosure of detailed information about property, plant and equipment [table] Table

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*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
953 Range [axis] Axis ifrs-full:RangeAxis
954 Ranges [member] Member ifrs-full:RangesMember
955 Minimum Member ifrs-full:BottomOfRangeMember
956 Maximum Member ifrs-full:TopOfRangeMember
957 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
958 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
959 Switching and transmission equipment Member viv:SwitchingAndTransmissionEquipmentMember
960 Terminal equipment / modems Member viv:TerminalEquipmentOrModemsMember
961 Infrastructure Member viv:InfrastructureMember
962 Land Member ifrs-full:LandMember
963 Other P&E Member ifrs-full:OtherPropertyPlantAndEquipmentMember
964 Assets and facilities under construction Member ifrs-full:ConstructionInProgressMember
965 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
966 Carrying amount [member] Member ifrs-full:CarryingAmountMember
967 Estimated losses for impairment or obsolescence Member ifrs-full:AccumulatedImpairmentMember
968 Cost Member ifrs-full:GrossCarryingAmountMember
969 Accumulated depreciation / amortization Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
970 PROPERTY, PLANT AND EQUIPMENT LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
971 Annual depreciation rate Concept (Percent) For Period viv:DepreciationRatePropertyPlantAndEquipment
972 Balance at beginning of the period Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
973 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
974 Write-offs, net Concept (Monetary) For Period Debit ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment
975 Net transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
976 Depreciation (Note 24) Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
977 Business Combination (Note 1.c.1) Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
978 Balance at end of the period Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
979 41202 - Disclosure - PROPERTY, PLANT AND EQUIPMENT - Depreciation rates (Details) Network

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 http://www.telefonica.com/role/DisclosurePropertyPlantAndEquipmentDepreciationRatesDetails
980 Disclosure of detailed information about property, plant and equipment [table] Table

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 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
981 Accounting estimates [axis] Axis ifrs-full:AccountingEstimatesAxis
982 Accounting estimates [member] Member ifrs-full:AccountingEstimatesMember
983 Depreciation rate accounting estimates Member viv:DepreciationRateAccountingEstimatesMember
984 PROPERTY, PLANT AND EQUIPMENT LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
985 Increased depreciation expense Concept (Monetary) For Period ifrs-full:IncreaseDecreaseInAccountingEstimate
986 Property and equipment pledged in guarantee Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentPledgedAsSecurity
987 Estimated residual value of reversible assets Concept (Monetary) For Period Debit viv:EstimatedResidualValueOfReversibleAssets
988 41301 - Disclosure - INTANGIBLE ASSETS (Details) Network

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 http://www.telefonica.com/role/DisclosureIntangibleAssetsDetails
989 Disclosure of detailed information about intangible assets [table] Table

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 ifrs-full:DisclosureOfIntangibleAssetsTable
990 Intangible assets with indefinite useful life [axis] Axis ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeAxis
991 Intangible assets with indefinite useful life [member] Member ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember
992 Goodwill Member ifrs-full:GoodwillMember
993 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
994 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
995 Software Member ifrs-full:ComputerSoftwareMember
996 Customer portfolio Member ifrs-full:CustomerrelatedIntangibleAssetsMember
997 Trademarks Member ifrs-full:BrandNamesMember
998 Licenses Member ifrs-full:LicencesMember
999 Other intangible assets Member ifrs-full:OtherIntangibleAssetsMember
1000 Software under development Member ifrs-full:IntangibleAssetsUnderDevelopmentMember
1001 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1002 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1003 Estimated losses for impairment or obsolescence Member ifrs-full:AccumulatedImpairmentMember
1004 Cost Member ifrs-full:GrossCarryingAmountMember
1005 Accumulated depreciation / amortization Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
1006 Range [axis] Axis ifrs-full:RangeAxis
1007 Ranges [member] Member ifrs-full:RangesMember
1008 Minimum Member ifrs-full:BottomOfRangeMember
1009 Maximum Member ifrs-full:TopOfRangeMember
1010 INTANGIBLE ASSETS LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
1011 Annual amortization rate (%) Concept (Percent) For Period viv:AmortisationRatesIntangibleAssetsOtherThanGoodwillPercent
1012 Balance at beginning of the period Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
1013 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
1014 Write-offs, net Concept (Monetary) For Period Debit ifrs-full:RevaluationIncreaseDecreaseIntangibleAssetsOtherThanGoodwill
1015 Net transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersIntangibleAssetsAndGoodwill
1016 Amortization (Note 25) Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
1017 Business combination (Note 1.c.2) Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill
1018 Balance at end of the period Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
1019 41302 - Disclosure - INTANGIBLE ASSETS - Goodwill breakdown (Details) Network

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 http://www.telefonica.com/role/DisclosureIntangibleAssetsGoodwillBreakdownDetails
1020 Disclosure of detailed information about intangible assets [table] Table

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 ifrs-full:DisclosureOfIntangibleAssetsTable
1021 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1022 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1023 Ajato Telecomunicacao Ltda. Member viv:AjatoTelecomunicacaoLtda.Member
1024 Spanish and Figueira, by the merger of Telefonica Data Brasil Holding (TDBH) in 2006 Member viv:SpanishEFigueiraMergedWithTdbhMember
1025 Santo Genovese Participacoes, Atrium Telecomunicacoes, which took place in 2004 Member viv:SantoGenoveseParticipacoesLtdaAndAtriumTelecomunicacoesMember
1026 Telefonica Televisao Participacoes, former Navytree, occurred in 2008 Member viv:TelefonicaTelevisaoParticipacoesS.a.Member
1027 Vivo Participacoes, occurred in 2011 Member viv:VivoParticipacoesS.A.Member
1028 GVT Participacoes, occurred in 2015 Member viv:GvtParticipacoesS.a.Member
1029 INTANGIBLE ASSETS LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
1030 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1031 41401 - Disclosure - IMPAIRMENT OF NONFINANCIAL ASSETS (Details) Network

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 http://www.telefonica.com/role/DisclosureImpairmentOfNonfinancialAssetsDetails
1032 Disclosure of impairment loss and reversal of impairment loss [table] Table

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*

 ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable
1033 Range [axis] Axis ifrs-full:RangeAxis
1034 Ranges [member] Member ifrs-full:RangesMember
1035 Minimum Member ifrs-full:BottomOfRangeMember
1036 Maximum Member ifrs-full:TopOfRangeMember
1037 IMPAIRMENT OF NONFINANCIAL ASSETS LineItems ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems
1038 Discount rate Concept (Percent) As Of viv:MaximumIncreasesOrDecreasesInFinancialVariablesDiscountRate
1039 Perpetuity growth rates Concept (Percent) As Of viv:MaximumIncreasesOrDecreasesInFinancialVariablesPerpetuityGrowthRates
1040 OIBDA Margin Concept (Percent) As Of viv:MaximumIncreasesOrDecreasesInOperatingVariablesOibdaMarginRate
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1044 Discount rate applied to cash flow projections Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
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1046 Impairment loss Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
1047 41501 - Disclosure - PERSONNEL, SOCIAL CHARGES AND BENEFITS (Details) Network

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 http://www.telefonica.com/role/DisclosurePersonnelSocialChargesAndBenefitsDetails
1048 Implied Table Table

*

*

 implied:Table
1049 PERSONNEL, SOCIAL CHARGES AND BENEFITS Abstract ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
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1058 41601 - Disclosure - TRADE ACCOUNTS PAYABLE (Details) Network

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*

 http://www.telefonica.com/role/DisclosureTradeAccountsPayableDetails
1059 Implied Table Table

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*

 implied:Table
1060 TRADE ACCOUNTS PAYABLE Abstract ifrs-full:TradeAndOtherPayablesAbstract
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1066 41701 - Disclosure - TAXES, CHARGES AND CONTRIBUTIONS (Details) Network

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 http://www.telefonica.com/role/DisclosureTaxesChargesAndContributionsDetails
1067 Implied Table Table

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*

 implied:Table
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1075 Noncurrent Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesNoncurrent
1076 41801 - Disclosure - DIVIDENDS AND INTEREST ON EQUITY (IOE) - Breakdown (Details) Network

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 http://www.telefonica.com/role/DisclosureDividendsAndInterestOnEquityIoeBreakdownDetails
1077 Disclosure of dividends and interest on equity [table] Table

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 viv:DisclosureOfDividendsAndInterestOnEquityTable
1078 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1079 Equity [member] Member ifrs-full:EquityMember
1080 Equity attributable to owners of parent [member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
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1089 41802 - Disclosure - DIVIDENDS AND INTEREST ON EQUITY (IOE) - Changes (Details) Network

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 http://www.telefonica.com/role/DisclosureDividendsAndInterestOnEquityIoeChangesDetails
1090 Implied Table Table

*

*

 implied:Table
1091 DIVIDENDS AND INTEREST ON EQUITY (IOE) Abstract viv:DisclosureOfDividendsAndInterestOnEquityAbstract
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1094 Interim dividends and interest on equity (net of IRRF) Concept (Monetary) For Period Credit viv:DividendsAndInterestOnEquityPayableAsDistributionsToOwnersOfParentRelatingToCurrentYear
1095 Unclaimed dividends and interest on equity Concept (Monetary) For Period Debit viv:UnclaimedDividendsAndInterestOnEquity
1096 Payment of dividends and interest on equity Concept (Monetary) For Period Debit viv:DividendsAndInterestOnEquityRecognisedAsDistributionsToOwnersOfParent
1097 IRRF on shareholders exempt/immune from interest on equity Concept (Monetary) For Period Credit viv:IrrfOnShareholdersExemptImmuneFromInterestOnEquity
1098 Ending Balance Concept (Monetary) As Of Credit viv:DividendAndInterestOnEquityCurrentPayable
1099 41901 - Disclosure - PROVISIONS AND CONTINGENCIES - Breakdown of changes in provisions (Details) Network

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 http://www.telefonica.com/role/DisclosureProvisionsAndContingenciesBreakdownOfChangesInProvisionsDetails
1100 Disclosure of other provisions [table] Table

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*

 ifrs-full:DisclosureOfOtherProvisionsTable
1101 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
1102 Other provisions [member] Member ifrs-full:OtherProvisionsMember
1103 Labor Member viv:ProvisionForLaborMember
1104 Tax Member ifrs-full:ProvisionForTaxesOtherThanIncomeTaxMember
1105 Civil Member ifrs-full:LegalProceedingsProvisionMember
1106 Regulatory Member viv:RegulatoryProvisionMember
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1108 Provision for decommissioning Member ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
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1112 Other additions (reversal) Concept (Monetary) For Period Credit viv:AdditionalProvisionsInflowsExceptIncomeOtherProvisions
1113 Write-offs due to payment Concept (Monetary) For Period Credit viv:ProvisionPaidOtherProvisions
1114 Write-offs due to taxes Concept (Monetary) For Period Credit viv:TaxesPaidOtherProvisions
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1116 Business combination (Note 1.c.2) Concept (Monetary) For Period Credit ifrs-full:AcquisitionsThroughBusinessCombinationsOtherProvisions
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1118 Current Concept (Monetary) As Of Credit ifrs-full:OtherShorttermProvisions
1119 Noncurrent Concept (Monetary) As Of Credit ifrs-full:OtherLongtermProvisions
1120 41902 - Disclosure - PROVISIONS AND CONTINGENCIES - Labor provisions and contingencies (Details) Network

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*

 http://www.telefonica.com/role/DisclosureProvisionsAndContingenciesLaborProvisionsAndContingenciesDetails
1121 Disclosure of other provisions [table] Table

*

*

 ifrs-full:DisclosureOfOtherProvisionsTable
1122 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
1123 Other provisions [member] Member ifrs-full:OtherProvisionsMember
1124 Labor Member viv:ProvisionForLaborMember
1125 Tax Member ifrs-full:ProvisionForTaxesOtherThanIncomeTaxMember
1126 Civil Member ifrs-full:LegalProceedingsProvisionMember
1127 Regulatory Member viv:RegulatoryProvisionMember
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1129 Ranges [member] Member ifrs-full:RangesMember
1130 Maximum Member ifrs-full:TopOfRangeMember
1131 Minimum Member ifrs-full:BottomOfRangeMember
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1134 Provisions - possible losses Concept (Monetary) As Of Credit viv:PossibleLossesProvisions
1135 Increase in provisions on account of claims filed by former and outsourced employees Concept (Monetary) For Period Credit viv:IncreaseInProvisionsOnAccountOfClaimsFiledByFormerAndOutsourcedEmployees
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1137 Federal Concept (Monetary) As Of Credit viv:OtherProvisionForProbableLossesOfFederalTax
1138 State Concept (Monetary) As Of Credit viv:OtherProvisionForProbableLossesOfStateTax
1139 Municipal Concept (Monetary) As Of Credit viv:OtherProvisionForProbableLossesOfMunicipalTax
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1142 Federal Concept (Monetary) As Of Credit viv:OtherProvisionForPossibleLossesOfFederalTax
1143 State Concept (Monetary) As Of Credit viv:OtherProvisionForPossibleLossesOfStateTax
1144 Municipal Concept (Monetary) As Of Credit viv:OtherProvisionForPossibleLossesOfMunicipalTax
1145 FUST, FUNTTEL and FISTEL Concept (Monetary) As Of Credit viv:OtherProvisionForPossibleLossesOfOtherTaxProceedings
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1149 Provision for Telecommunications Inspection Fund Concept (Monetary) As Of Credit viv:OtherProvisionForPossibleLossesOfAnatelUnderTelecommunicationsInspectionFund
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1151 Possible losses Concept (Monetary) As Of Credit viv:ProvisionsForCivilContingenciesAssessedAsPossibleLossess
1152 Supplement of share proceedings Concept (Monetary) As Of Credit viv:ProvisionsForCivilContingenciesAssessedAsProbableLossessRelatingToSharesCalculatedOnNetworkExpansionPlans
1153 Relating to failure to supply services and/or products sold Concept (Monetary) As Of Credit viv:ProvisionsForCivilContingenciesAssessedAsProbableLossessRelatingToFailureToSupplyServicesAndOrProductsSold
1154 Civil proceedings of a non-consumer nature Concept (Monetary) As Of Credit viv:ProvisionsForCivilContingenciesAssessedAsProbableLossessRelatingToCivilProceedingsOfNonConsumerNatureAllArisingInOrdinaryCourseOfBusiness
1155 Claims at several levels, related to service rendering rights Concept (Monetary) As Of Credit viv:ClaimsRelatedToServiceRenderingRights
1156 Civil execution proceeding Concept (Monetary) As Of Credit viv:ProvisionForAllegedNonPaymentOfTransportationServiceBills
1157 Lawsuits on various administrative and legal proceedings Concept (Monetary) As Of Credit viv:LawsuitsOnVariousAdministrativeAndLegalProceedings
1158 Number of wireless carriers under lawsuit Concept (Integer) As Of viv:NumberOfWirelessCarriersUnderLawsuit
1159 Daily fine in case of noncompliance Concept (Monetary) For Period Debit viv:DailyFineInCaseOfNoncompliance
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1161 Possible losses Concept (Monetary) As Of Credit viv:ProvisionsForRegulatoryContingenciesAssessedAsPossibleLosses
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1163 Frequency of payment for use of SMP realted radio frequencies Concept (xbrli:durationItemType) For Period viv:PaymentTermForUseOfSmpRelatedRadioFrequencies
1164 Extension period for use of SMP related radio frequencies Concept (xbrli:durationItemType) For Period viv:ExtensionPeriodForUseOfSmpRelatedRadioFrequencies
1165 Amount of fine imposed by ANATEL lawsuit Concept (Monetary) As Of Credit viv:FineImposedOnEntityInAdministrativeAndJudicialProceedingsLawsuit
1166 Interest and correction amount on fine imposed by ANATEL lawsuit Concept (Monetary) As Of Credit viv:InterestAndCorrectionAmountInAdministrativeAndJudicialProceedingsLawsuit
1167 41903 - Disclosure - PROVISIONS AND CONTINGENCIES - Guarantees (Details) Network

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 http://www.telefonica.com/role/DisclosureProvisionsAndContingenciesGuaranteesDetails
1168 Disclosure of other provisions [table] Table

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*

 ifrs-full:DisclosureOfOtherProvisionsTable
1169 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
1170 Other provisions [member] Member ifrs-full:OtherProvisionsMember
1171 Contingent liability for guarantees Member ifrs-full:ContingentLiabilityForGuaranteesMember
1172 PROVISIONS AND CONTINGENCIES LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
1173 Property and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentPledgedAsSecurity
1174 Judicial deposits and garnishments Concept (Monetary) As Of Debit ifrs-full:RestrictedCashAndCashEquivalents
1175 Letters of guarantee Concept (Monetary) As Of Debit viv:LettersOfGuarantee
1176 Short-term investments pledged as collateral Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities
1177 42001 - Disclosure - LOANS, FINANCING AND DEBENTURES - Breakdown (Details) Network

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 http://www.telefonica.com/role/DisclosureLoansFinancingAndDebenturesBreakdownDetails
1178 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1179 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1180 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1181 Loans and financing Member viv:LoansAndFinancingFinancialInstitutionsMember
1182 Financing - BNDES FINEM - Contract 11.2.0814.1 maturing 7/15/2019 Member viv:BrazilianDevelopmentBankFinancingProjectContract11208141MaturingOn20190715Member
1183 Financing - BNDES FINEM - Contract 11.2.0963.1 maturing 8/15/2020 Member viv:BrazilianDevelopmentBankFinancingProjectContract11209631MaturingOn20200815Member
1184 Financing - BNDES FINEM - Contract 11.2.0963.1 maturing 11/15/2019 Member viv:BrazilianDevelopmentBankFinancingProjectContract11209631MaturingOn20191115Member
1185 Financing - BNDES FINEM - Contract 14.2.1192.1 maturing 1/15/2023 (TJLP) Member viv:BrazilianDevelopmentBankFinancingProjectContract14211921AtRateOneMaturingOn20230115Member
1186 Financing - BNDES FINEM - Contract 14.2.1192.1 maturing 1/15/2023 (4% to 6%) Member viv:BrazilianDevelopmentBankFinancingProjectContract14211921AtRateTwoMaturingOn20230115Member
1187 Financing - BNDES FINEM - Contract 14.2.1192.1 maturing 1/15/2023 (Selic) Member viv:BrazilianDevelopmentBankFinancingProjectContract14211921AtRateThreeMaturingOn20230115Member
1188 Financing - BNDES PSI maturing 1/15/2023 Member viv:BrazilianDevelopmentBankInvestmentSupportProgramMaturingOn20230115Member
1189 Financing - BNB maturing 8/18/2022 Member viv:BankOfNortheastOfBrazilMaturingOn20220818Member
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1193 1st issue - Minas Comunica Member viv:NonPrivileged3SeriesPublicUnsecuredNonconvertibleDebenturesSubscribedByMinasGeraisStateEconomicDevelopmentMember
1194 4th issue Member viv:NonPrivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesFourthIssueMember
1195 5th issue Member viv:NonprivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesFifthIssueMember
1196 6th issue Member viv:NonprivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesSixthIssueMember
1197 Finance lease Member ifrs-full:LeaseLiabilitiesMember
1198 Contingent consideration Member viv:ContingentConsiderationMember
1199 Currency [Axis] Axis srt:CurrencyAxis
1200 All Currencies [Domain] Member currency:AllCurrenciesDomain
1201 Home currency Member currency:BRL
1202 Foreign currency Member viv:ForeignCurrencyMember
1203 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1204 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
1205 Floating interest rate Member ifrs-full:FloatingInterestRateMember
1206 TJLP Member viv:LongTermInterestRateMember
1207 Selic Member viv:SpecialCustodialAndClearingSystemBenchmarkRateMember
1208 ECM Member viv:EcmRateMember
1209 Range [axis] Axis ifrs-full:RangeAxis
1210 Ranges [member] Member ifrs-full:RangesMember
1211 Minimum Member ifrs-full:BottomOfRangeMember
1212 Maximum Member ifrs-full:TopOfRangeMember
1213 LOANS, FINANCING AND DEBENTURES LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1214 Annual interest rate (as a percent) Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
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1217 Noncurrent Concept (Monetary) As Of Credit viv:LoansAndFinancingNonCurrent
1218 Total Concept (Monetary) As Of Credit viv:LoansAndFinancing
1219 Bank guarantee (in percent) Concept (Percent) For Period viv:PercentageOfBankGuaranteeProvidedOnOutstandingDebtBalance
1220 Number of installments Concept (Integer) For Period viv:NumberOfInstallmentsRepaymentReferencedToAveragePostGracePeriodPerformance
1221 Remaining balances Concept (Monetary) For Period Debit viv:BalanceOfRepayments
1222 42002 - Disclosure - LOANS, FINANCING AND DEBENTURES - Loans and financing (Details) Network

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 http://www.telefonica.com/role/DisclosureLoansFinancingAndDebenturesLoansAndFinancingDetails
1223 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1224 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1225 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1226 Loans and financing Member viv:LoansAndFinancingFinancialInstitutionsMember
1227 BNDES - PSI Member viv:BrazilianDevelopmentBankInvestmentSupportProgramMember
1228 Financing - Suppliers Member viv:FinanceWithSuppliersMember
1229 Range [axis] Axis ifrs-full:RangeAxis
1230 Ranges [member] Member ifrs-full:RangesMember
1231 Minimum Member ifrs-full:BottomOfRangeMember
1232 Maximum Member ifrs-full:TopOfRangeMember
1233 LOANS, FINANCING AND DEBENTURES LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
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1235 Net cost of CDI, as percentage Concept (Percent) For Period viv:PercentageOfNetCostOfInterbankDepositCertificate
1236 42003 - Disclosure - LOANS, FINANCING AND DEBENTURES - Debentures (Details) Network

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*

 http://www.telefonica.com/role/DisclosureLoansFinancingAndDebenturesDebenturesDetails
1237 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1238 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1239 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
1240 Floating interest rate Member ifrs-full:FloatingInterestRateMember
1241 IPCA Member viv:BoardConsumerPriceIndexMember
1242 CDI Member viv:InterbankDepositCertificateRateMember
1243 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1244 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1245 Debentures Member viv:DebenturesMember
1246 4th issue - Series 3 Member viv:NonPrivileged3SeriesPublicUnsecuredNonconvertibleDebenturesFourthIssueMember
1247 1st issue - Minas Comunica Member viv:NonPrivileged3SeriesPublicUnsecuredNonconvertibleDebenturesSubscribedByMinasGeraisStateEconomicDevelopmentMember
1248 3rd and 4th issue Member viv:NonPrivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesThirdAndFourthIssueMember
1249 4th issue Member viv:NonPrivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesFourthIssueMember
1250 4th, 5th and 6th issues Member viv:NonprivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesFourthFifthAndSixthIssueMember
1251 5th issue Member viv:NonprivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesFifthIssueMember
1252 6th issue Member viv:NonprivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesSixthIssueMember
1253 LOANS, FINANCING AND DEBENTURES LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
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1255 Outstanding Concept (Integer) As Of viv:NumberOfDebenturesOutstanding
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1258 42004 - Disclosure - LOANS, FINANCING AND DEBENTURES - Finance lease and contingent consideration (Details) Network

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 http://www.telefonica.com/role/DisclosureLoansFinancingAndDebenturesFinanceLeaseAndContingentConsiderationDetails
1259 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1260 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1261 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1262 Finance lease Member ifrs-full:LeaseLiabilitiesMember
1263 Contingent consideration Member viv:ContingentConsiderationMember
1264 Maturity [axis] Axis ifrs-full:MaturityAxis
1265 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1266 2019 Member ifrs-full:NotLaterThanOneYearMember
1267 From 1 to 5 years Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
1268 Over five years Member ifrs-full:LaterThanFiveYearsMember
1269 LOANS, FINANCING AND DEBENTURES LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
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1271 Unrealized financial expenses Concept (Monetary) As Of Credit ifrs-full:FutureFinanceChargeOnFinanceLease
1272 Present value payable Concept (Monetary) As Of Credit ifrs-full:MinimumFinanceLeasePaymentsPayableAtPresentValue
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1274 Noncurrent Concept (Monetary) As Of Credit viv:LoansAndFinancingNonCurrent
1275 Unsecured residual values resulting in benefits to the lessor Concept (Monetary) As Of Debit ifrs-full:DiscountedUnguaranteedResidualValueOfAssetsSubjectToFinanceLease
1276 Reimbursement period Concept (xbrli:durationItemType) For Period viv:ReimbursementPeriod
1277 42005 - Disclosure - LOANS, FINANCING AND DEBENTURES - Repayment schedule (Details) Network

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 http://www.telefonica.com/role/DisclosureLoansFinancingAndDebenturesRepaymentScheduleDetails
1278 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1279 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1280 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1281 Loans and financing Member viv:LoansAndFinancingFinancialInstitutionsMember
1282 Debentures Member viv:DebenturesMember
1283 Finance lease Member ifrs-full:LeaseLiabilitiesMember
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1285 Maturity [axis] Axis ifrs-full:MaturityAxis
1286 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1287 2020 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1288 2021 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
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1290 2023 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
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1292 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
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1294 42006 - Disclosure - LOANS, FINANCING AND DEBENTURES - Changes (Details) Network

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 http://www.telefonica.com/role/DisclosureLoansFinancingAndDebenturesChangesDetails
1295 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1296 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1297 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1298 Loans and financing Member viv:LoansAndFinancingFinancialInstitutionsMember
1299 Debentures Member viv:DebenturesMember
1300 Finance lease Member ifrs-full:LeaseLiabilitiesMember
1301 Financing - Suppliers Member viv:FinanceWithSuppliersMember
1302 Contingent consideration Member viv:ContingentConsiderationMember
1303 LOANS, FINANCING AND DEBENTURES LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
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1307 Financial charges (Note 27) Concept (Monetary) For Period Debit ifrs-full:InterestExpense
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1310 Write-offs (payments) Concept (Monetary) For Period Credit viv:BorrowingsRepaymentsAndOtherWriteOffs
1311 Balance at end of the period Concept (Monetary) As Of Credit ifrs-full:Borrowings
1312 42007 - Disclosure - LOANS, FINANCING AND DEBENTURES - Summary of Funding and Payments (Details) Network

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 http://www.telefonica.com/role/DisclosureLoansFinancingAndDebenturesSummaryOfFundingAndPaymentsDetails
1313 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1314 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1315 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1316 Loans and financing Member viv:LoansAndFinancingFinancialInstitutionsMember
1317 Financing - BNDES FINEM - Contract 14.2.1192.1 maturing 1/15/2023 Member viv:BrazilianDevelopmentBankFinancingProjectContract14211921Maturing20230115Member
1318 Financing - BNDES FINEM - Contract 14.2.1192.1 maturing 1/15/2023 (TJLP) Member viv:BrazilianDevelopmentBankFinancingProjectContract14211921AtRateOneMaturingOn20230115Member
1319 Financing - BNDES FINEM - Contract 14.2.1192.1 maturing 1/15/2023 (4% to 6%) Member viv:BrazilianDevelopmentBankFinancingProjectContract14211921AtRateTwoMaturingOn20230115Member
1320 Financing - BNDES FINEM - Contract 14.2.1192.1 maturing 1/15/2023 (Selic) Member viv:BrazilianDevelopmentBankFinancingProjectContract14211921AtRateThreeMaturingOn20230115Member
1321 BNB Member viv:BancoDoNordesteMember
1322 Resolution 4131 - Scotiabank and Bank of America Member viv:ScotiabankAndBankOfAmericaResolution4131Member
1323 Debentures Member viv:DebenturesMember
1324 4th issue - Series 3 Member viv:NonPrivileged3SeriesPublicUnsecuredNonconvertibleDebenturesFourthIssueMember
1325 1st issue - Minas Comunica Member viv:NonPrivileged3SeriesPublicUnsecuredNonconvertibleDebenturesSubscribedByMinasGeraisStateEconomicDevelopmentMember
1326 1st issue - Series 1 Member viv:NonPrivileged1SeriesPublicUnsecuredNonconvertibleDebenturesFirstIssueMember
1327 1st issue - Series 2 Member viv:NonPrivileged2SeriesPublicUnsecuredNonconvertibleDebenturesFirstIssueMember
1328 1st issue - Series 3 Member viv:NonPrivileged3SeriesPublicUnsecuredNonconvertibleDebenturesFirstIssueMember
1329 3rd and 4th issue Member viv:NonPrivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesThirdAndFourthIssueMember
1330 3rd issue Member viv:NonPrivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesThirdIssueMember
1331 4th issue Member viv:NonPrivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesFourthIssueMember
1332 4th, 5th and 6th issues Member viv:NonprivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesFourthFifthAndSixthIssueMember
1333 5th issue Member viv:NonprivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesFifthIssueMember
1334 6th issue Member viv:NonprivilegedSingleSeriesPublicUnsecuredNonconvertibleDebenturesSixthIssueMember
1335 Financing - Suppliers Member viv:FinanceWithSuppliersMember
1336 Finance lease Member ifrs-full:LeaseLiabilitiesMember
1337 Range [axis] Axis ifrs-full:RangeAxis
1338 Ranges [member] Member ifrs-full:RangesMember
1339 Minimum Member ifrs-full:BottomOfRangeMember
1340 Maximum Member ifrs-full:TopOfRangeMember
1341 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1342 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
1343 Floating interest rate Member ifrs-full:FloatingInterestRateMember
1344 TJLP Member viv:LongTermInterestRateMember
1345 Selic Member viv:SpecialCustodialAndClearingSystemBenchmarkRateMember
1346 LOANS, FINANCING AND DEBENTURES LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1347 Additions Concept (Monetary) For Period Credit viv:IncreaseInBorrowings
1348 Write-offs (payments), Principal Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
1349 Write-offs (payments), Financial charges Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
1350 Write-offs (payments), Total Concept (Monetary) For Period Credit viv:BorrowingsRepaymentsAndOtherWriteOffs
1351 Credit facility Concept (Monetary) As Of Credit viv:IfrsLineOfCreditFacilityMaximumBorrowingCapacity
1352 Annual interest rate (as a percent) Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1353 Term Concept (xbrli:durationItemType) For Period viv:IfrsDebtInstrumentTerm
1354 Consecutive monthly installments Concept (Integer) For Period viv:NumberOfConsecutiveMonthlyInstallments
1355 Adjustment to interest rate (as a percent) Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
1356 Debenture Concept (Monetary) As Of Credit ifrs-full:NotesAndDebenturesIssued
1357 Number of debentures Concept (Integer) As Of viv:NumberOfDebenturesIssued
1358 Debenture par value Concept (Per Unit) As Of viv:DebentureParValue
1359 Accumulated variation of CDI, as a percent Concept (Percent) For Period viv:PercentageOfAccumulatedVariationOfInterbankDepositCertificate
1360 Spread Concept (Percent) For Period viv:PercentageOfInterbankDepositCertificateSpread
1361 42101 - Disclosure - DEFERRED INCOME (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureDeferredIncomeDetails
1362 Implied Table Table

*

*

 implied:Table
1363 DEFERRED INCOME Abstract ifrs-full:AccrualsAndDeferredIncomeAbstract
1364 Services and goods Concept (Monetary) As Of Credit viv:DeferredIncomeServicesAndGoods
1365 Disposal of PP&E Concept (Monetary) As Of Credit viv:DeferredIncomeDisposalOfPropertyPlantAndEquipment
1366 Activation revenue Concept (Monetary) As Of Credit viv:DeferredIncomeActivationRevenue
1367 Customer loyalty program Concept (Monetary) As Of Credit viv:DeferredIncomeCustomerLoyaltyProgram
1368 Government grants Concept (Monetary) As Of Credit viv:DeferredIncomeGovernmentGrants
1369 Contractual Liabilities - IFRS 15 Concept (Monetary) As Of Credit viv:DeferredIncomeContractualLiabilities
1370 Other Concept (Monetary) As Of Credit viv:DeferredIncomeOther
1371 Total Concept (Monetary) As Of Credit ifrs-full:DeferredIncome
1372 Current Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
1373 Noncurrent Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsNoncurrent
1374 Reclassification to deferred income contractual liabilities Concept (Monetary) As Of Credit viv:ReclassificationToDeferredIncomeContractualLiabilitiesDueToIfrs15
1375 Reclassification from deferred income services and goods Concept (Monetary) As Of Debit viv:ReclassificationFromDeferredIncomeServicesAndGoodsDueToIfrs15
1376 Reclassification from deferred income customer loyalty program Concept (Monetary) As Of Debit viv:ReclassificationFromDeferredIncomeCustomerLoyaltyProgramDueToIfrs15
1377 42201 - Disclosure - OTHER LIABILITIES (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureOtherLiabilitiesDetails
1378 Implied Table Table

*

*

 implied:Table
1379 OTHER LIABILITIES Abstract viv:IfrsOtherLiabilitiesAbstract
1380 Authorization licenses Concept (Monetary) As Of Credit viv:OtherLiabilitiesAuthorizationLicenses
1381 Liabilities with related parties (Note 28) Concept (Monetary) As Of Credit viv:OtherPayablesToRelatedParties
1382 Payment for license renewal Concept (Monetary) As Of Credit viv:OtherLiabilitiesPaymentForLicenseRenewal
1383 Third-party withholdings Concept (Monetary) As Of Credit viv:OtherLiabilitiesThirdPartyWithholdings
1384 Deficit in post-employment benefit plans (Note 30) Concept (Monetary) As Of Credit ifrs-full:RecognisedLiabilitiesDefinedBenefitPlan
1385 Amounts to be refunded to subscribers Concept (Monetary) As Of Credit viv:OtherLiabilitiesAmountsToBeRefundedToSubscribers
1386 Other liabilities Concept (Monetary) As Of Credit viv:MiscellaneousOtherLiabilities
1387 Total Concept (Monetary) As Of Credit ifrs-full:OtherLiabilities
1388 Current Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
1389 Noncurrent Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
1390 Installment paid Concept (Monetary) For Period Debit viv:InstallmentAmountPaidForLicenses
1391 42301 - Disclosure - EQUITY - Capital (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureEquityCapitalDetails
1392 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1393 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1394 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1395 Preferred shares Member ifrs-full:PreferenceSharesMember
1396 Range [axis] Axis ifrs-full:RangeAxis
1397 Ranges [member] Member ifrs-full:RangesMember
1398 Maximum Member ifrs-full:TopOfRangeMember
1399 EQUITY LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1400 Authorized capital Concept (Shares) As Of ifrs-full:NumberOfSharesAuthorised
1401 Proportion of non-vesting or restricted-voting preferred shares as percentage of total shares Concept (Percent) For Period viv:ProportionOfNonVestingOrRestrictedVotingPreferredSharesAsPercentageOfTotalShares
1402 Percentage of increase in amount allocated to common share Concept (Percent) For Period viv:PercentageOfIncreaseInAmountAllocatedToCommonShare
1403 Number of consecutive financial years to which minimum dividend to be paid Concept (xbrli:durationItemType) For Period viv:NumberOfConsecutiveFinancialYearsToWhichMinimumDividendToBePaid
1404 42302 - Disclosure - EQUITY - Distribution of capital (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureEquityDistributionOfCapitalDetails
1405 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1406 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1407 Equity [member] Member ifrs-full:EquityMember
1408 Capital Member ifrs-full:IssuedCapitalMember
1409 Treasury shares Member ifrs-full:TreasurySharesMember
1410 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1411 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1412 Common shares Member ifrs-full:OrdinarySharesMember
1413 Preferred shares Member ifrs-full:PreferenceSharesMember
1414 Shareholders name [axis] Axis viv:ShareholdersNameAxis
1415 Shareholders name [domain] Member viv:ShareholdersNameDomain
1416 Controlling Group Member viv:ControllingShareholdersMember
1417 Telefonica Latinoamerica Holding S.L. (former Telefonica Internacional S.A.) Member viv:TelefonicaLatinoamericaHoldingS.l.Member
1418 Telefonica Member viv:TelefonicaS.a.Member
1419 SP Telecomunicacoes Participacoes Member viv:SpTelecomunicacoesParticipacoesLtdaMember
1420 Telefonica Chile Member viv:TelefonicaChileS.a.Member
1421 Non-controlling shareholders Member viv:NonControllingShareholdersMember
1422 Other shareholders Member viv:OtherShareholdersMember
1423 EQUITY LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1424 Capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1425 Number Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1426 Percentage of shares issued Concept (Percent) As Of viv:PercentageOfSharesIssued
1427 Treasury Shares Concept (Shares) As Of ifrs-full:SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
1428 Total shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1429 42303 - Disclosure - EQUITY - Capital reserves (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureEquityCapitalReservesDetails
1430 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1431 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1432 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1433 Telefonica Data S.A. (TData) Member viv:TelefonicaDataS.a.Member
1434 Terra Networks Member viv:TerraNetworksMember
1435 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1436 Equity [member] Member ifrs-full:EquityMember
1437 Capital reserves Member viv:CapitalAndCapitalRedemptionReserveMember
1438 Treasury shares Member ifrs-full:TreasurySharesMember
1439 Other capital reserves Member ifrs-full:CapitalReserveMember
1440 Special goodwill reserve Member viv:SpecialGoodwillReserveMember
1441 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1442 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1443 Preferred shares Member ifrs-full:PreferenceSharesMember
1444 EQUITY LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1445 Tax benefit generated by merger Concept (Monetary) As Of Credit viv:TaxBenefitOnAcquisitionOfSubsidiary
1446 Excess of value in the issue or capitalization Concept (Monetary) As Of Credit viv:ExcessOfCapitalizationValueOverBasicValue
1447 Cancelation of treasury shares according to the Special Shareholders' Meeting of 3/12/15 Concept (Monetary) As Of Debit viv:ExcessOfCapitalizationValueOverBasicValueCancelationOfTreasuryShares
1448 Direct costs on capital increase (net of taxes) according to the Special Shareholders Meeting of 04/30/15 Concept (Monetary) As Of Debit viv:ExcessOfCapitalizationValueOverBasicValueRelatedCostOfShareIssue
1449 Incorporation of shares of GVTPart Concept (Monetary) As Of Debit viv:ExcessOfCapitalizationValueOverBasicValueAcquisitionOfSubsidiary
1450 Effects of the acquisition of Lemontree and GTR by Company and Tglog by TData Concept (Monetary) As Of Debit viv:FinancialEffectsOnAccountOfBusinessCombinations
1451 Preferred shares delivered referring to the legal process of expansion plan Concept (Monetary) As Of Credit viv:ExcessOfCapitalizationValueOverBasicValueSaleOrIssueOfTreasuryShares
1452 Effects of the acquisition Concept (Monetary) As Of Debit viv:ExcessOfCapitalizationValueOverBasicValueAdjustmentToEquityOnAccountOfBusinessCombination
1453 Total Concept (Monetary) As Of Credit ifrs-full:CapitalReserve
1454 Cancelation of treasury shares according to the Special Shareholders' Meeting (SGM) of 3/12/15 (in shares) Concept (Shares) For Period viv:NumberOfTreasurySharesCancelled
1455 Transfer of lawsuits concerning judicial proceedings (in shares) Concept (Shares) For Period viv:NumberOfTreasurySharesSoldOrIssued
1456 42304 - Disclosure - EQUITY - Capital reserves - Treasury Shares (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureEquityCapitalReservesTreasurySharesDetails
1457 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1458 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1459 Equity [member] Member ifrs-full:EquityMember
1460 Capital reserves Member viv:CapitalAndCapitalRedemptionReserveMember
1461 Treasury shares Member ifrs-full:TreasurySharesMember
1462 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1463 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1464 Common shares Member ifrs-full:OrdinarySharesMember
1465 Preferred shares Member ifrs-full:PreferenceSharesMember
1466 EQUITY LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1467 Gain or loss on equity instruments Concept (Monetary) For Period Credit viv:GainLossOnEquityInstruments
1468 Balance (in shares) Concept (Shares) As Of ifrs-full:SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
1469 Acquisition of shares in the financial market (in shares) Concept (Shares) For Period viv:PurchaseOfSharesInFinancialMarket
1470 Transfer of lawsuits concerning judicial proceedings (in shares) Concept (Shares) For Period viv:NumberOfTreasurySharesSoldOrIssued
1471 Balance (in shares) Concept (Shares) As Of ifrs-full:SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
1472 Balance Concept (Monetary) As Of Debit ifrs-full:TreasuryShares
1473 Acquisition of shares in the financial market Concept (Monetary) For Period Debit viv:PurchaseOfSharesInFinancialMarketValue
1474 Transfer of lawsuits concerning judicial proceedings Concept (Monetary) For Period Credit ifrs-full:SaleOrIssueOfTreasuryShares
1475 Balance Concept (Monetary) As Of Debit ifrs-full:TreasuryShares
1476 Unit issue price Concept (Share) For Period viv:IfrsSharePrice
1477 42305 - Disclosure - EQUITY - Legal Reserve and Income reserves (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureEquityLegalReserveAndIncomeReservesDetails
1478 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1479 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1480 Equity [member] Member ifrs-full:EquityMember
1481 Income reserves Member viv:IncomeReservesMember
1482 Legal reserve Member viv:IncomeReservesLegalReserveMember
1483 Expansion and modernization reserve Member viv:IncomeReserveExpansionAndModernizationReserveMember
1484 Tax incentive reserve Member viv:IncomeReserveTaxIncentiveReserveMember
1485 EQUITY LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1486 Revenue reserve (as a percent) Concept (Percent) For Period viv:PercentageOfRevenueReserve
1487 Maximum percentage of revenue reserved in paid-in capital Concept (Percent) For Period viv:PercentageOfRevenueReserveInPaidInCapitalMaximum
1488 Balance Concept (Monetary) As Of Credit viv:IncomeReserves
1489 Reversal of reserves Concept (Monetary) For Period Credit viv:AllocationOfIncomeToReversalExpansionAndModernizationReserve
1490 Recording of reserves Concept (Monetary) For Period Credit viv:AllocationOfIncomeToIncomeReserves
1491 Balance Concept (Monetary) As Of Credit viv:IncomeReserves
1492 42306 - Disclosure - EQUITY - Interim dividend and interest on equity (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureEquityInterimDividendAndInterestOnEquityDetails
1493 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1494 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1495 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1496 Common shares Member ifrs-full:OrdinarySharesMember
1497 Preferred shares Member ifrs-full:PreferenceSharesMember
1498 EQUITY LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1499 Allocation of income to additional dividend proposed Concept (Monetary) For Period Credit viv:AllocationOfIncomeToAdditionalDividendProposed
1500 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1501 Allocation to legal reserve Concept (Monetary) For Period Debit viv:AdjustmentsAllocationOfIncomeToLegalReserve
1502 Tax incentives - not distributable Concept (Monetary) For Period Debit viv:AdjustmentsTaxIncentivesOnCorporateIncomeTaxReturnAdjustments
1503 Adjusted net income Concept (Monetary) For Period Credit viv:ProfitLossAfterAdjustments
1504 Dividend and IOE distributed for the year: Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear
1505 Interest on equity (gross) Concept (Monetary) For Period Debit viv:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYearInterestOnEquity
1506 Balance of unallocated net income Concept (Monetary) For Period Credit viv:UnallocatedNetIncome
1507 Reversal special reserve for modernization and expansion Concept (Monetary) For Period Credit viv:AdjustmentAllocationOfIncomeToReversalExpansionAndModernizationReserve
1508 Effects of the initial adoption of IFRS 9 and 15, net of taxes in 01.01.18 Concept (Monetary) For Period Credit viv:IncreaseDecreaseInEquityThroughChangesInAdoptionOfIfrs9AndIfrs15
1509 Unclaimed dividends and interest on equity Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
1510 Actuarial gains (losses) recognized and effect of limitation of surplus plan assets, net of taxes and other changes Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
1511 Income available to be distributed Concept (Monetary) For Period Credit viv:IncomeAvailableForDistribution
1512 Proposal for Distributions: Special reserve for modernization and expansion Concept (Monetary) For Period Credit viv:ProposalForDistributionsExpansionAndModernizationReserve
1513 Proposal for Distributions: Additional proposed dividends Concept (Monetary) For Period Credit viv:ProposalForDistributionsAllocationOfIncomeToAdditionalDividend
1514 Proposed additional dividends - Net income for the year Concept (Monetary) For Period Credit viv:AllocationOfIncomeToAdditionalDividend
1515 Proposed additional dividends - Based on prior year's net income, referring to the reversal of the special reserve for expansion and modernization Concept (Monetary) For Period Credit viv:AllocationOfPriorYearIncomeToAdditionalDividend
1516 Mandatory minimum dividend - as percentage of adjusted net income Concept (Percent) For Period viv:MandatoryMinimumDividendAsPercentageOfAdjustedNetIncome
1517 Mandatory minimum dividend - 25% of adjusted net income Concept (Monetary) For Period Debit viv:MandatoryMinimumDividend
1518 Total proposed for deliberation - per share Concept (Share) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare
1519 Percentage of increase in amount allocated to common share Concept (Percent) For Period viv:PercentageOfIncreaseInAmountAllocatedToCommonShare
1520 42307 - Disclosure - EQUITY - Allocation of interim dividend and interest on equity (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureEquityAllocationOfInterimDividendAndInterestOnEquityDetails
1521 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1522 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1523 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1524 Common shares Member ifrs-full:OrdinarySharesMember
1525 Preferred shares Member ifrs-full:PreferenceSharesMember
1526 Dividend and interest on equity approval dates [axis] Axis viv:DividendAndInterestOnEquityApprovalDatesAxis
1527 Dividend and interest on equity approval dates [domain] Member viv:DividendAndInterestOnEquityApprovalDatesDomain
1528 6/18/2018 Member viv:InterestOnEquityApprovedOn06182018Member
1529 9/5/2018 Member viv:InterestOnEquityApprovedOn09052018Member
1530 12/4/2018 Member viv:InterestOnEquityApprovedOn12042018Member
1531 2/13/2017 Member viv:InterestOnEquityApprovedOn02132017Member
1532 3/20/2017 Member viv:InterestOnEquityApprovedOn03202017Member
1533 6/19/2017 Member viv:InterestOnEquityApprovedOn06192017Member
1534 9/18/2017 Member viv:InterestOnEquityApprovedOn09182017Member
1535 12/14/2017 Member viv:InterestOnEquityApprovedOn12142017Member
1536 EQUITY LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1537 Total, Gross Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear
1538 IOE, net Concept (Monetary) For Period Debit viv:NetDividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYearInterestOnEquity
1539 IOE, per share Concept (Share) For Period viv:DividendsRecognisedAsDistributionsToOwnersInterestOnEquityPerShare
1540 Percentage of increase in amount allocated to common share Concept (Percent) For Period viv:PercentageOfIncreaseInAmountAllocatedToCommonShare
1541 Reversal of unclaimed dividends and interest on equity Concept (Monetary) For Period Debit viv:UnclaimedDividendsAndInterestOnEquity
1542 42308 - Disclosure - EQUITY - Changes in other comprehensive income (Details) Network

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*

 http://www.telefonica.com/role/DisclosureEquityChangesInOtherComprehensiveIncomeDetails
1543 Disclosure of analysis of other comprehensive income by item [table] Table

*

*

 ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable
1544 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1545 Equity [member] Member ifrs-full:EquityMember
1546 Financial assets at fair value through other comprehensive income Member ifrs-full:ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember
1547 Derivative transactions Member ifrs-full:ReserveOfCashFlowHedgesMember
1548 Currency translation effects - foreign investments Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
1549 Changes in other comprehensive income LineItems ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemLineItems
1550 Balance Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
1551 Translation gains Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax
1552 Losses from future contracts Concept (Monetary) For Period Debit viv:LossesOnCashFlowHedgesNetOfTax
1553 Gains (Losses) on financial assets at fair value through other comprehensive income Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax
1554 Balance Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
1555 42309 - Disclosure - EQUITY - Company Share Repurchase Program (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureEquityCompanyShareRepurchaseProgramDetails
1556 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1557 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1558 Equity [member] Member ifrs-full:EquityMember
1559 Capital reserves Member viv:CapitalAndCapitalRedemptionReserveMember
1560 Treasury shares Member ifrs-full:TreasurySharesMember
1561 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1562 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1563 Common shares Member ifrs-full:OrdinarySharesMember
1564 Preferred shares Member ifrs-full:PreferenceSharesMember
1565 EQUITY LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1566 Shares to be acquired under repurchase program Concept (Shares) For Period viv:SharesToBeAcquiredUnderShareRepurchaseProgram
1567 Acquisition of shares in the financial market (in shares) Concept (Shares) For Period viv:PurchaseOfSharesInFinancialMarket
1568 Unit issue price Concept (Share) For Period viv:IfrsSharePrice
1569 Acquisition of shares in the financial market Concept (Monetary) For Period Debit viv:PurchaseOfSharesInFinancialMarketValue
1570 42310 - Disclosure - EQUITY - Earnings per share (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureEquityEarningsPerShareDetails
1571 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1572 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1573 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1574 Common shares Member ifrs-full:OrdinarySharesMember
1575 Preferred shares Member ifrs-full:PreferenceSharesMember
1576 EQUITY LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1577 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity
1578 Weighted average number of outstanding shares for the year Concept (Shares) For Period ifrs-full:WeightedAverageShares
1579 Basic and diluted earnings per share Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
1580 42401 - Disclosure - NET OPERATING REVENUE (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureNetOperatingRevenueDetails
1581 Disclosure of disaggregation of revenue from contracts with customers [table] Table

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*

 ifrs-full:DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable
1582 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
1583 Products and services [member] Member ifrs-full:ProductsAndServicesMember
1584 Services Member viv:ServicesMember
1585 Sale of goods Member viv:SaleOfGoodsMember
1586 Revenue breakdown LineItems ifrs-full:DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems
1587 Gross operating revenue Concept (Monetary) For Period Credit viv:GrossOperatingRevenue
1588 Deductions from gross operating revenue Concept (Monetary) For Period Debit viv:DeductionsFromGrossOperatingRevenue
1589 Taxes Concept (Monetary) For Period Debit viv:TaxOnOperatingRevenue
1590 Discounts granted and return of goods Concept (Monetary) For Period Debit viv:DiscountOnSalesAndReturnOfGoods
1591 Net operating revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfTelecommunicationServices
1592 42501 - Disclosure - OPERATING COSTS AND EXPENSES (Details) Network

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*

 http://www.telefonica.com/role/DisclosureOperatingCostsAndExpensesDetails
1593 Disclosure of operating costs and expenses [table] Table

*

*

 viv:DisclosureOfOperatingCostsAndExpensesTable
1594 ifrs income statement location [axis] Axis viv:IfrsIncomeStatementLocationAxis
1595 ifrs income statement location [domain] Member viv:IfrsIncomeStatementLocationDomain
1596 Cost of sales and services Member viv:CostOfSalesAndServicesMember
1597 Selling expenses Member viv:IfrsSellingAndMarketingExpenseMember
1598 General and administrative expenses Member viv:IfrsGeneralAndAdministrativeExpenseMember
1599 OPERATING COSTS AND EXPENSES LineItems viv:OperatingCostsAndExpensesLineItems
1600 Personnel Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1601 Third-party services Concept (Monetary) For Period Debit viv:ThirdPartyServicesExpenses
1602 Rental, insurance, condominium and connection means Concept (Monetary) For Period Debit viv:RentalInsuranceCondominiumAndConnectionMeansExpenses
1603 Taxes, charges and contributions Concept (Monetary) For Period Debit viv:TaxesChargesAndContributionsExpense
1604 Estimated impairment losses on accounts receivable Concept (Monetary) For Period Debit viv:EstimatedImpairmentLossesOnAccountsReceivable
1605 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1606 Cost of goods sold Concept (Monetary) For Period Debit viv:CostRelatingToGoodsSold
1607 Material and other operating costs and expenses Concept (Monetary) For Period Debit viv:MaterialAndOtherOperatingCostsAndExpenses
1608 Total Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
1609 Non-cumulative PIS and COFINS Concept (Monetary) For Period Debit viv:TaxCreditOnSocialContributions
1610 42601 - Disclosure - OTHER OPERATING INCOME (EXPENSES) - Summary of other operating income (expenses) (Details) Network

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 http://www.telefonica.com/role/DisclosureOtherOperatingIncomeExpensesSummaryOfOtherOperatingIncomeExpensesDetails
1611 Implied Table Table

*

*

 implied:Table
1612 OTHER OPERATING INCOME (EXPENSES), NET Abstract viv:DisclosureOfOtherOperatingIncomeExpensesNetAbstract
1613 Recovered expenses and fines Concept (Monetary) For Period Credit viv:ExpensesAndFinesRecovered
1614 Provisions for labor, tax and civil contingencies Concept (Monetary) For Period Debit viv:ProvisionsForLaborTaxAndCivilContingencies
1615 Net gain (loss) on asset disposal/loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfNoncurrentAssets
1616 Other operating income (expenses) Concept (Monetary) For Period Debit viv:OtherOperatingIncomeExpenseExcludingProvisionsRecoveriesAndGainLossOnDisposals
1617 Total Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
1618 Other operating income Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
1619 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:MiscellaneousOtherOperatingExpense
1620 42602 - Disclosure - OTHER OPERATING INCOME (EXPENSES) - Sale of assets (Details) Network

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*

 http://www.telefonica.com/role/DisclosureOtherOperatingIncomeExpensesSaleOfAssetsDetails
1621 Noncurrent Assets Or Disposal Groups Classified As Held For Sale [Table] Table

*

*

 viv:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleTable
1622 Assets and liabilities classified as held for sale [axis] Axis ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis
1623 Assets and liabilities not classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember
1624 Assets and liabilities classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleMember
1625 Transmission towers Member viv:TransmissionTowersDisposalGroupDiscontinuedOperationMember
1626 Sale of assets LineItems viv:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleLineItems
1627 Tax credits arising from final court proceeding in favor of the Company and its subsidiary Concept (Monetary) For Period Credit viv:TaxCreditsArisingFromFinalCourtProceeding
1628 Write-off of judicial deposits included in provision for labor, tax and civil contingencies Concept (Monetary) For Period Credit viv:WriteOffOfJudicialDepositsIncludedInProvisionsForLaborTaxAndCivilContingencies
1629 Net gain (loss) on asset disposal/loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfNoncurrentAssets
1630 Number of towers sold Concept (Integer) For Period viv:NumberOfTowersSold
1631 42701 - Disclosure - FINANCIAL INCOME (EXPENSES) (Details) Network

*

*

 http://www.telefonica.com/role/DisclosureFinancialIncomeExpensesDetails
1632 Implied Table Table

*

*

 implied:Table
1633 FINANCIAL INCOME (EXPENSES) Abstract viv:DisclosureOfFinancialIncomeExpensesAbstract
1634 Interest income Concept (Monetary) For Period Credit ifrs-full:InvestmentIncome
1635 Interest receivable (customers, taxes and other) Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
1636 Gain on derivative financial instruments Concept (Monetary) For Period Credit ifrs-full:GainsOnChangeInFairValueOfDerivatives
1637 Foreign exchange variations on loans and financing Concept (Monetary) For Period Credit viv:IncomeOnForeignExchangeVariationsOnLoansAndFinancing
1638 Other revenues from foreign exchange and monetary variation Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
1639 Other financial income Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncome
1640 Total Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
1641 Loan, financing, debenture and finance lease charges Concept (Monetary) For Period Debit ifrs-full:InterestExpense
1642 Foreign exchange variation on loans and financing Concept (Monetary) For Period Debit viv:ExpensesOnForeignExchangeVariationsOnLoansAndFinancing
1643 Loss on derivative financial instruments Concept (Monetary) For Period Debit ifrs-full:LossesOnChangeInFairValueOfDerivatives
1644 Interest payable (financial institutions, provisions, trade accounts payable, taxes and other) Concept (Monetary) For Period Debit viv:InterestExpensesOnPayable
1645 Other expenses with foreign exchange and monetary variation Concept (Monetary) For Period Debit viv:OtherExpensesOnForeignExchangeAndMonetaryVariation
1646 IOF, PIS, Cofins and other financial expenses Concept (Monetary) For Period Debit ifrs-full:OtherFinanceCost
1647 Total Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
1648 Financial income (expenses), net Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
1649 Tax credit value included in other revenues from foreign exchange and monetary variation Concept (Monetary) For Period Credit viv:TaxCreditValueIncludedInRevenuesFromForeignExchangeAndMonetaryVariation
1650 42801 - Disclosure - BALANCES AND TRANSACTIONS WITH RELATED PARTIES - Balance Sheet (Details) Network

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*

 http://www.telefonica.com/role/DisclosureBalancesAndTransactionsWithRelatedPartiesBalanceSheetDetails
1651 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1652 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1653 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1654 Parent Member ifrs-full:ParentMember
1655 SP Telecomunicacoes Participacoes Member viv:SpTelecomunicacoesParticipacoesMember
1656 Telefonica LatinoAmerica Holding Member viv:TelefonicaLatinoamericaHoldingMember
1657 Telefonica Member viv:TelefonicaMember
1658 Other Group companies Member viv:OtherGroupCompaniesMember
1659 Colombia Telecomunicaciones ESP Member viv:ColombiaTelecomunicacionesEspMember
1660 Media Networks Brasil Solucoes Digitals Member viv:MediaNetworksBrasilSolucoesDigitalsMember
1661 T.O2 Germany GMBH CO. OHG Member viv:TO2GermanyGmbhCoOhgMember
1662 Telefonica Venezolana Member viv:TelefonicaVenezolanaMember
1663 Telefonica Digital Espana Member viv:TelefonicaDigitalEspanaMember
1664 Telefonica Factoring do Brasil Member viv:TelefonicaFactoringDoBrasilMember
1665 Telefonica Global Technology Member viv:TelefonicaGlobalTechnologyMember
1666 Telefonica Inteligencia e Seguranca Brasil Member viv:TelefonicaInteligenciaESegurancaBrasilMember
1667 Telefonica International Wholesale Services Espanha Member viv:TelefonicaInternationalWholesaleServicesEspanhaMember
1668 Telefonica Servicos de Ensino Member viv:TelefonicaServicosDeEnsinoMember
1669 Telefonica Moviles Argentina Member viv:TelefonicaMovilesArgentinaMember
1670 Telefonica Moviles Del Espanha Member viv:TelefonicaMovilesDelEspanhaMember
1671 Telefonica USA Member viv:TelefonicaUsaMember
1672 Telfisa Global BV Member viv:TelfisaGlobalBvMember
1673 Telxius Cable Brasil Member viv:TelxiusCableBrasilMember
1674 Telxius Torres Brasil Member viv:TelxiusTorresBrasilMember
1675 Terra Networks Chile, Terra Networks Mexico, Terra Networks Peru e Terra Networks Argentina and Terra Networks Colombia Member viv:TerraNetworksChileTerraNetworksMexicoTerraNetworksPeruETerraNetworksArgentinaAndTerraNetworksColombiaMember
1676 Colombia Telecomunicaciones S.A. ESP Member viv:ColombiaTelecomunicacionesS.a.EspMember
1677 Fundacao Telefonica Member viv:FundacaoTelefonicaMember
1678 Media Networks Latina America SAC Member viv:MediaNetworksLatinaAmericaSacMember
1679 Telefonica Compras Electronicas Member viv:TelefonicaComprasElectronicasMember
1680 Other Member ifrs-full:OtherRelatedPartiesMember
1681 BALANCES AND TRANSACTIONS WITH RELATED PARTIES LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1682 Cash and cash equivalents Concept (Monetary) As Of Debit viv:CashAndCashEquivalentsRelatedPartyTransactions
1683 Accounts receivable, net Concept (Monetary) As Of Debit viv:TradeReceivablesDueFromRelatedParties
1684 Other assets Concept (Monetary) As Of Debit viv:OtherReceivablesDueFromRelatedParties
1685 Other current assets Concept (Monetary) As Of Debit viv:OtherCurrentReceivablesDueFromRelatedParties
1686 Other noncurrent assets Concept (Monetary) As Of Debit viv:OtherNoncurrentReceivablesDueFromRelatedParties
1687 Trade accounts payable and other payables Concept (Monetary) As Of Credit viv:TradePayablesToRelatedParties
1688 Other liabilities Concept (Monetary) As Of Credit viv:OtherPayablesToRelatedParties
1689 Other liabilities, current Concept (Monetary) As Of Credit viv:OtherCurrentPayablesToRelatedParties
1690 Other liabilities, non-current Concept (Monetary) As Of Credit viv:OtherNoncurrentPayablesToRelatedParties
1691 42802 - Disclosure - BALANCES AND TRANSACTIONS WITH RELATED PARTIES - Income Statement (Details) Network

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*

 http://www.telefonica.com/role/DisclosureBalancesAndTransactionsWithRelatedPartiesIncomeStatementDetails
1692 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1693 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1694 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1695 Parent Member ifrs-full:ParentMember
1696 SP Telecomunicacoes Participacoes Member viv:SpTelecomunicacoesParticipacoesMember
1697 Telefonica LatinoAmerica Holding Member viv:TelefonicaLatinoamericaHoldingMember
1698 Telefonica Member viv:TelefonicaMember
1699 Other Group companies Member viv:OtherGroupCompaniesMember
1700 Colombia Telecomunicaciones S.A. ESP Member viv:ColombiaTelecomunicacionesS.a.EspMember
1701 Companhia AIX de Participacoes Member viv:CompanhiaAixDeParticipacoesMember
1702 Fundacao Telefonica Member viv:FundacaoTelefonicaMember
1703 Media Networks Brasil Solucoes Digitals Member viv:MediaNetworksBrasilSolucoesDigitalsMember
1704 Media Networks Latina America SAC Member viv:MediaNetworksLatinaAmericaSacMember
1705 Telefonica Servicos de Ensino Member viv:TelefonicaServicosDeEnsinoMember
1706 T.O2 Germany GMBH CO. OHG Member viv:TO2GermanyGmbhCoOhgMember
1707 Telefonica Compras Electronicas Member viv:TelefonicaComprasElectronicasMember
1708 Telefonica Digital Espana Member viv:TelefonicaDigitalEspanaMember
1709 Telefonica Factoring do Brasil Member viv:TelefonicaFactoringDoBrasilMember
1710 Telefonica Global Technology Member viv:TelefonicaGlobalTechnologyMember
1711 Telefonica Inteligencia e Seguranca Brasil Member viv:TelefonicaInteligenciaESegurancaBrasilMember
1712 Telefonica International Wholesale Services Espanha Member viv:TelefonicaInternationalWholesaleServicesEspanhaMember
1713 Telefonica Moviles Argentina Member viv:TelefonicaMovilesArgentinaMember
1714 Telefonica Moviles Del Chile Member viv:TelefonicaMovilesDelChileMember
1715 Telefonica Moviles Del Espanha Member viv:TelefonicaMovilesDelEspanhaMember
1716 Telefonica USA Member viv:TelefonicaUsaMember
1717 Telxius Cable Brasil Member viv:TelxiusCableBrasilMember
1718 Telxius Torres Brasil Member viv:TelxiusTorresBrasilMember
1719 Terra Networks Chile, Terra Networks Mexico, Terra Networks Peru e Terra Networks Argentina and Terra Networks Colombia Member viv:TerraNetworksChileTerraNetworksMexicoTerraNetworksPeruETerraNetworksArgentinaAndTerraNetworksColombiaMember
1720 Other Member ifrs-full:OtherRelatedPartiesMember
1721 BALANCES AND TRANSACTIONS WITH RELATED PARTIES LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1722 Operating revenues Concept (Monetary) For Period Credit viv:OperatingRevenuesRelatedPartyTransactions
1723 Cost and other expenses (revenues) operating Concept (Monetary) For Period Credit viv:OtherOperatingRevenuesExpensesRelatedPartyTransactions
1724 Financial result Concept (Monetary) For Period Credit viv:NetIncomeLossRelatedPartyTransactions
1725 42803 - Disclosure - BALANCES AND TRANSACTIONS WITH RELATED PARTIES - Management compensation (Details) Network

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*

 http://www.telefonica.com/role/DisclosureBalancesAndTransactionsWithRelatedPartiesManagementCompensationDetails
1726 Implied Table Table

*

*

 implied:Table
1727 BALANCES AND TRANSACTIONS WITH RELATED PARTIES Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
1728 Key management personnel compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1729 Salaries, benefits and social charges Concept (Monetary) For Period Debit viv:KeyManagementPersonnelCompensationSalariesBenefitsAndSocialCharges
1730 Variable compensation Concept (Monetary) For Period Debit viv:KeyManagementPersonnelCompensationVariableCompensation
1731 42901 - Disclosure - SHARE-BASED PAYMENT PLANS (Details) Network

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*

 http://www.telefonica.com/role/DisclosureShareBasedPaymentPlansDetails
1732 SHARE-BASED PAYMENT PLANS Table

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*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1733 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1734 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1735 Talent future share plan Member viv:TalentFutureSharePlanMember
1736 TFSP 2018-2020 cycle Member viv:TalentFutureSharePlanCycleThreeMember
1737 Perform Share Plan Member viv:PerformSharePlanMember
1738 PSP 2018-2020 cycle Member viv:PerformSharePlanCycleOneMember
1739 SHARE-BASED PAYMENT PLANS LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1740 Share price Concept (Share) As Of viv:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharePrice
1741 Expense from share-based payment transactions with employees Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1742 Initial life of the plan Concept (xbrli:durationItemType) For Period viv:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationPeriod
1743 Number of active executives Concept (Integer) For Period viv:NumberOfActiveCompanyExecutives
1744 Number of executives appointed under articles Bylaws Concept (Integer) For Period viv:NumberOfExecutivesAppointedUnderCompanySBylaws
1745 Number of potential shares to be received Concept (Shares) For Period viv:NumberOfPotentialSharesToBeReceivedInShareBasedPaymentArrangement
1746 43001 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Sponsored Plans by Type (Details) Network

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*

 http://www.telefonica.com/role/DisclosurePensionPlansAndOtherPostEmploymentBenefitsSponsoredPlansByTypeDetails
1747 Disclosure of net defined benefit liability (asset) [table] Table

*

*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1748 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1749 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1750 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1751 VISAO Plans Member viv:VisaoTelefonciaVisaoMultiAndVisaoTgestionaPlansMember
1752 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1753 Contributions made by the Company and its subsidiaries Concept (Monetary) For Period Debit viv:EmployersContributionToDefinedContributionPlan
1754 43002 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Reconciliation of net liabilities (assets) (Details) Network

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*

 http://www.telefonica.com/role/DisclosurePensionPlansAndOtherPostEmploymentBenefitsReconciliationOfNetLiabilitiesAssetsDetails
1755 Disclosure of net defined benefit liability (asset) [table] Table

*

*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1756 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1757 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1758 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1759 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1760 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
1761 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
1762 Asset Limitation Member ifrs-full:EffectOfAssetCeilingMember
1763 Net defined benefit liability (asset) LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1764 Reconciliation of assets and liabilities: Abstract ifrs-full:SurplusDeficitInPlanAbstract
1765 Present value of DB plan obligations Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
1766 Fair value of plan assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1767 Net liabilities (assets) Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
1768 Net liabilities (assets) Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1769 Noncurrent assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan
1770 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentRecognisedLiabilitiesDefinedBenefitPlan
1771 Noncurrent liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan
1772 43003 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Total expenses recognized in the income statement (Details) Network

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 http://www.telefonica.com/role/DisclosurePensionPlansAndOtherPostEmploymentBenefitsTotalExpensesRecognizedInIncomeStatementDetails
1773 Disclosure of net defined benefit liability (asset) [table] Table

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*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1774 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1775 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1776 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1777 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1778 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1779 Current service cost Concept (Monetary) For Period Debit viv:DefinedBenefitPlansServiceCost
1780 Net interest on net actuarial assets/liabilities Concept (Monetary) For Period Debit viv:DefinedBenefitPlansInterestExpenseInterestIncomeNet
1781 Total Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
1782 43004 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Amounts recognized in other comprehensive income (loss) (Details) Network

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 http://www.telefonica.com/role/DisclosurePensionPlansAndOtherPostEmploymentBenefitsAmountsRecognizedInOtherComprehensiveIncomeLossDetails
1783 Disclosure of net defined benefit liability (asset) [table] Table

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*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1784 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1785 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1786 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1787 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1788 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1789 Actuarial (losses) gains Concept (Monetary) For Period Credit viv:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlansActuarialGainsAndLosses
1790 Asset limitation effect Concept (Monetary) For Period Credit viv:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlansChangeInEffectOfAssetCeiling
1791 Total Concept (Monetary) For Period Credit viv:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlansActuarialGainsAndLossesAndChangeInEffectOfAssetCeiling
1792 43005 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Changes in amount net of liability (asset) of defined benefit, net (Details) Network

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 http://www.telefonica.com/role/DisclosurePensionPlansAndOtherPostEmploymentBenefitsChangesInAmountNetOfLiabilityAssetOfDefinedBenefitNetDetails
1793 Disclosure of net defined benefit liability (asset) [table] Table

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*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1794 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1795 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1796 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1797 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1798 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1799 Balance at the beginning of the year Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1800 Business combinations Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsAndDisposalsNetDefinedBenefitLiabilityAsset
1801 Expenses Concept (Monetary) For Period Credit viv:CurrentServiceCostAndInterestExpenseIncomeNetDefinedBenefitLiabilityAsset
1802 Sponsor contributions Concept (Monetary) For Period Debit viv:PaymentsFromPlanAndContributionsToPlanNetDefinedBenefitLiabilityAsset
1803 Amounts recognized in OCI Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
1804 Balance at the end of the year Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1805 Actuarial assets per balance sheet Concept (Monetary) As Of Debit ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan
1806 Actuarial liabilities per balance sheet Concept (Monetary) As Of Credit ifrs-full:RecognisedLiabilitiesDefinedBenefitPlan
1807 43006 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Changes in defined benefit liability (Details) Network

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 http://www.telefonica.com/role/DisclosurePensionPlansAndOtherPostEmploymentBenefitsChangesInDefinedBenefitLiabilityDetails
1808 Disclosure of net defined benefit liability (asset) [table] Table

*

*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1809 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1810 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1811 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1812 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1813 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
1814 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
1815 Defined benefit liability Member ifrs-full:PresentValueOfDefinedBenefitObligationMember
1816 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1817 Balance at the beginning of the year Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1818 Liability assumed after acquisition of company Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsAndDisposalsNetDefinedBenefitLiabilityAsset
1819 Current service costs Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
1820 Interest on actuarial liabilities Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
1821 Benefits paid Concept (Monetary) For Period Debit ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset
1822 Member contributions paid Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset
1823 Actuarial losses (gains) adjusted by experience Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset
1824 Actuarial losses (gains) adjusted by demographic assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
1825 Actuarial losses (gains) adjusted by financial assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
1826 Balance at the end of the year Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1827 43007 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Changes in the fair value of plan assets (Details) Network

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 http://www.telefonica.com/role/DisclosurePensionPlansAndOtherPostEmploymentBenefitsChangesInFairValueOfPlanAssetsDetails
1828 Disclosure of net defined benefit liability (asset) [table] Table

*

*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1829 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1830 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1831 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1832 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1833 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
1834 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
1835 Fair value of plan assets Member ifrs-full:PlanAssetsMember
1836 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1837 Balance at the beginning of the year Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1838 Asset acquired on acquisition of company Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsAndDisposalsNetDefinedBenefitLiabilityAsset
1839 Benefits paid Concept (Monetary) For Period Debit ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset
1840 Participants contributions paid Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset
1841 Sponsor contributions paid Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
1842 Interest income on plan assets Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
1843 Return on plan assets excluding interest income Concept (Monetary) For Period Debit ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
1844 Balance at the end of the year Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1845 43008 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Changes in assets limitation (Details) Network

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1846 Disclosure of net defined benefit liability (asset) [table] Table

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*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1847 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1848 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1849 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1850 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1851 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
1852 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
1853 Asset Limitation Member ifrs-full:EffectOfAssetCeilingMember
1854 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1855 Balance at the beginning of the year Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1856 Interest on the asset limitation Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
1857 Changes in the assets limitation, except interest Concept (Monetary) For Period Debit ifrs-full:GainLossOnChangesInEffectOfLimitingNetDefinedBenefitAssetToAssetCeiling
1858 Effect generated by company acquisition Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsAndDisposalsNetDefinedBenefitLiabilityAsset
1859 Balance at the end of the year Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1860 43009 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Results projected (Details) Network

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 http://www.telefonica.com/role/DisclosurePensionPlansAndOtherPostEmploymentBenefitsResultsProjectedDetails
1861 Disclosure of net defined benefit liability (asset) [table] Table

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 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1862 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1863 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1864 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1865 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1866 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1867 Current service cost Concept (Monetary) For Period Debit viv:DefinedBenefitPlansEstimatedServiceCost
1868 Net interest on net defined benefit liability/asset Concept (Monetary) For Period Debit viv:EstimatedNetInterestOnNetActuarialAssetsLiabilities
1869 Total Concept (Monetary) For Period Debit viv:EstimatedPostEmploymentBenefitExpenseDefinedBenefitPlans
1870 43010 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Sponsoring company contributions projected (Details) Network

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 http://www.telefonica.com/role/DisclosurePensionPlansAndOtherPostEmploymentBenefitsSponsoringCompanyContributionsProjectedDetails
1871 Disclosure of net defined benefit liability (asset) [table] Table

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*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1872 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1873 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1874 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1875 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1876 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1877 Sponsor contributions Concept (Monetary) For Period Debit viv:EstimatedContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
1878 Benefits paid directly by the sponsor Concept (Monetary) For Period Debit viv:EstimatedBenefitsPaidBySponsor
1879 Total Concept (Monetary) For Period Debit viv:EstimateOfContributionsExpectedToBePaid
1880 43011 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Average weighted duration of defined benefit liability (Details) Network

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1881 Disclosure of net defined benefit liability (asset) [table] Table

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 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1882 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1883 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1884 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1885 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1886 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1887 Average weighted duration of defined benefit liability Concept (Decimal) For Period ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation
1888 43012 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Actuarial Assumptions (Details) Network

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1889 Disclosure of net defined benefit liability (asset) [table] Table

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 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1890 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1891 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1892 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1893 Visao Member viv:RetirementPlansVivoprevmVisaoMember
1894 Visao and Tcoprev Member viv:RetirementPlansVisaoAndTcoprevMember
1895 PBS-A and CTB Member viv:PbsAndCtbMember
1896 Telefnica BD and Tcoprev Member viv:RetirementPlansTelefonicaDefinedBenefitPlanAndTcoprevMember
1897 Visao, CTB, Telefonica BD and Tcoprev Member viv:VisaoCompanhiaTelefonicaBrasileiraTelefonicaBrasileiraTelefonicaDefinedBenefitPlanAndTcoprevMember
1898 PBS-A, CTB and Telefonica BD Member viv:RetirementPlansPbsAssistedPlanCompanhiaTelefonicaBrasileiraAndTelefonicaDefinedBenefitPlanMember
1899 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1900 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1901 Discount rate to present value of defined benefit liability Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
1902 Future salary growth rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
1903 Medical expense growth rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfMedicalCostTrendRates
1904 Nominal annual adjustment rate of pension benefits Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfPensionIncreases
1905 Medical service eligibility age Concept (xbrli:durationItemType) For Period viv:MedicalServiceEligibilityAge
1906 Contribution eligibility on retirement (as a percent) Concept (Percent) For Period viv:PercentageOfEligibilityOnRetirement
1907 Estimated retirement age Concept (Decimal) As Of ifrs-full:ActuarialAssumptionOfRetirementAge
1908 Mortality table for nondisabled individuals (as a percent) Concept (Percent) For Period viv:DecreaseInPercentageOfMortalityTableForNondisabledIndividuals
1909 Mortality table for disabled individuals (as a percent) Concept (Percent) For Period viv:DecreaseInPercentageOfMortalityTableForDisabledIndividuals
1910 Disability table ( as a percent) Concept (Percent) For Period viv:DisabilityTableDownwardPercentage
1911 Long term inflation rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfInflation
1912 Annual increase in use of healthcare services according to age Concept (Percent) For Period viv:AnnualIncreaseInUseOfHealthcareServicesAccordingToAge
1913 43013 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Changes in Actuarial Assumptions in Relation to Prior Year (Details) Network

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1914 Disclosure of defined benefit plans [table] Table

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1915 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1916 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1917 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1918 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1919 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
1920 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
1921 Defined benefit liability Member ifrs-full:PresentValueOfDefinedBenefitObligationMember
1922 Ifrs Statement scenario [axis] Axis viv:IfrsStatementScenarioAxis
1923 Ifrs Scenario, Unspecified [Domain] Member viv:IfrsScenarioUnspecifiedDomain
1924 Based on prior-year actuarial assumptions Member viv:PriorYearActuarialAssumptionsMember
1925 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1926 Defined benefit liability Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
1927 Difference from change in actuarial assumptions Concept (Monetary) For Period Debit viv:ActuarialGainsLossesArisingFromChangesInDemographicAndFinancialAssumptionsNetDefinedBenefitLiabilityAsset
1928 43014 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Sensitivity analysis for actuarial assumptions (Details) Network

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1929 Disclosure of defined benefit plans [table] Table

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1930 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1931 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1932 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1933 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1934 Actuarial assumptions [axis] Axis ifrs-full:ActuarialAssumptionsAxis
1935 Actuarial assumptions [member] Member ifrs-full:ActuarialAssumptionsMember
1936 Discount rate Member ifrs-full:ActuarialAssumptionOfDiscountRatesMember
1937 Rate of growth of medical costs Member ifrs-full:ActuarialAssumptionOfMedicalCostTrendRatesMember
1938 PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1939 Increase in actuarial assumption (as a percent) Concept (Percent) As Of ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption
1940 Decrease in actuarial assumption (as a percent) Concept (Percent) As Of ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption
1941 Defined benefit liability, discounted to present value at current rate Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
1942 Defined benefit liability, discounted to present value considering a rate increased by 0.5% Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption
1943 Defined benefit liability, discounted to present value considering a rate decreased by 0.5% Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption
1944 43015 - Disclosure - PENSION PLANS AND OTHER POST-EMPLOYMENT BENEFITS - Allocation of plan assets (Details) Network

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1945 Disclosure of fair value of plan assets [table] Table

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1946 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1947 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1948 Post-retirement pension plans Member ifrs-full:DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember
1949 Post-retirement health plans Member viv:DefinedBenefitPostRetirementHealthPlansMember
1950 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1951 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1952 Market value quoted in active market Member ifrs-full:Level1OfFairValueHierarchyMember
1953 Market value not quoted in active market Member ifrs-full:Level2And3OfFairValueHierarchyMember
1954 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1955 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1956 National Treasury Note (NTN) Member viv:NationalTreasuryNoteNtnFixedIncomeInvestmentsMember
1957 Treasury Financial Letter (LFT) Member viv:TreasuryFinancialLetterLftFixedIncomeInvestmentsMember
1958 Repurchase operations Member viv:RepurchaseOperationsFixedIncomeInvestmentsMember
1959 Debentures Member viv:DebenturesFixedIncomeInvestmentsMember
1960 Financial bills Member viv:FinancialBillsFixedIncomeInvestmentsMember
1961 FIDC shares / Others Member viv:FidcSharesOthersFixedIncomeInvestmentsMember
1962 National Treasury Notes (LTN) Member viv:NationalTreasuryNotesLtnFixedIncomeInvestmentsMember
1963 Bank Deposit Certificates (CDB) Member viv:BankDepositCertificatesCdbFixedIncomeInvestmentsMember
1964 Investments in energy sector Member viv:VariableIncomeInvestmentsInEnergySectorMember
1965 Investments in food and beverage industry Member viv:VariableIncomeInvestmentsInFoodAndBeverageIndustryMember
1966 Investments in mining sector Member viv:VariableIncomeInvestmentsInMiningSectorMember
1967 Investments in other sectors Member viv:VariableIncomeInvestmentsInOtherSectorsMember
1968 Loans to participants Member viv:LoansToParticipantsMember
1969 Allocation of plan assets LineItems ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems
1970 Fixed income investments and Loans to participants Concept (Monetary) As Of Debit ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets
1971 Variable income investments Concept (Monetary) As Of Debit ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets
1972 Real estate investments Concept (Monetary) As Of Debit ifrs-full:PropertyAmountContributedToFairValueOfPlanAssets
1973 Structured investments Concept (Monetary) As Of Debit ifrs-full:StructuredDebtAmountContributedToFairValueOfPlanAssets
1974 Total Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1975 43101 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Derivative financial instruments (Details) Network

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1976 Implied Table Table

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1977 FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT Abstract ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract
1978 Derivative financial instruments for speculative purposes Concept (Integer) As Of viv:DerivativeNumberOfInstrumentsHeldForTrading
1979 Embedded derivative financial instruments held Concept (Integer) As Of viv:EmbeddedDerivativeNumberOfInstrumentsHeld
1980 Threshold business days for linear convention Concept (xbrli:durationItemType) For Period viv:ThresholdBusinessDaysForLinearConvention
1981 Threshold business days for exponential convention Concept (xbrli:durationItemType) For Period viv:ThresholdBusinessDaysForExponentialConvention
1982 43102 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Derivatives financial instruments classified as swaps (Details) Network

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1983 Disclosure of detailed information about hedges [table] Table

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1984 Hedging instruments [axis] Axis ifrs-full:HedgingInstrumentsAxis
1985 Hedging instruments [member] Member ifrs-full:HedgingInstrumentsMember
1986 Foreign currency swaps US $ Member viv:ForeignCurrencySwapsUsMember
1987 Foreign currency swaps Euro Member viv:ForeignCurrencySwapsEuroMember
1988 Foreign currency swaps maturing through February 13, 2019 Member viv:ForeignCurrencySwapsMaturingThroughFebruary132019Member
1989 Foreign currency swaps maturing through 2019 to hedge the risk of IPCA Member viv:ForeignCurrencySwapsMaturingThrough2019ToHedgeRiskOfIpcaMember
1990 Foreign currency swaps maturing through 2019 to hedge the risk of TJLP Member viv:ForeignCurrencySwapsMaturingThrough2019ToHedgeRiskOfTjlpMember
1991 Foreign currency swaps maturing in 2033 to hedge risk of change in finance lease rate pegged to IPCA Member viv:ForeignCurrencySwapsMaturingIn2033ToHedgeRiskOfChangeInFinanceLeaseRatePeggedToIpcaMember
1992 Foreign currency swaps maturing 2016 through 2018 to hedge IGP-DI Member viv:ForeignCurrencySwapsMaturing2016Through2018ToHedgeIgpDiMember
1993 Continuing involvement in derecognised financial assets by type of instrument [axis] Axis ifrs-full:ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis
1994 Types of instrument [member] Member ifrs-full:TypesOfInstrumentMember
1995 Long position Member ifrs-full:PurchasedCallOptionsMember
1996 Short position Member ifrs-full:WrittenPutOptionsMember
1997 Currency [Axis] Axis srt:CurrencyAxis
1998 All Currencies [Domain] Member currency:AllCurrenciesDomain
1999 Foreign currency Member viv:ForeignCurrencyMember
2000 US Dollar Member currency:USD
2001 Euro Member currency:EUR
2002 LIBOR US$ Member viv:LiborUsMember
2003 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
2004 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
2005 Floating interest rate Member ifrs-full:FloatingInterestRateMember
2006 CDI Member viv:InterbankDepositCertificateRateMember
2007 TJLP Member viv:LongTermInterestRateMember
2008 Inflation rates Member viv:InflationInterestRateMember
2009 IPCA Member viv:BoardConsumerPriceIndexMember
2010 IGPM Member viv:GeneralPriceIndexMarketMember
2011 Derivatives financial instruments LineItems ifrs-full:DisclosureOfHedgeAccountingLineItems
2012 Notional Value Concept (Monetary) As Of ifrs-full:NotionalAmount
2013 Notional value for short position Concept (Monetary) As Of Credit viv:NotionalValueForDerivativeLiabilities
2014 Accumulated effects from fair value Amount receivable or payable Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
2015 Current Concept (Monetary) As Of Debit ifrs-full:CurrentDerivativeFinancialAssets
2016 Non Current Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
2017 Short position Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
2018 Current Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
2019 Non Current Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
2020 Total Concept (Monetary) As Of Debit viv:DerivativeAssetsLiabilitiesNet
2021 Carrying amount Concept (Monetary) As Of Credit ifrs-full:Borrowings
2022 Currency risk affecting net amount payable Concept (Monetary) As Of Credit viv:NetAmountPayableOnCurrencyRisk
2023 Currency risk affecting net amount receivable Concept (Monetary) As Of Debit viv:NetAmountReceivableOnCurrencyRisk
2024 43103 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Breakdown of swaps (Details) Network

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2025 Disclosure of detailed information about financial instruments [table] Table

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*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
2026 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
2027 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
2028 Swap contract Member ifrs-full:SwapContractMember
2029 Foreign currency x CDI Member viv:ForeignCurrencySwapContractMember
2030 CDI x Foreign Currency Member viv:InterbankDepositCertificateRateSwapContractMember
2031 TJLP x CDI Member viv:LongTermInterestRateSwapContractMember
2032 IPCA x CDI Member viv:BoardConsumerPriceIndexSwapContractMember
2033 Maturity [axis] Axis ifrs-full:MaturityAxis
2034 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2035 2019 Member ifrs-full:NotLaterThanOneYearMember
2036 2020 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2037 2021 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2038 2022 onwards Member ifrs-full:LaterThanThreeYearsMember
2039 Derivative financial instruments break down of swaps LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
2040 Total Concept (Monetary) As Of Debit viv:DerivativeAssetsLiabilitiesNet
2041 Ineffective portion of hedge Concept (Monetary) As Of Debit viv:IneffectivePortionOfHedgeNotionalAmount
2042 (Net) result of transactions with derivatives Concept (Monetary) For Period Credit ifrs-full:GainLossOnHedgeIneffectiveness
2043 43104 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Sensitivity analysis net exposure (Details) Network

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2044 Disclosure of risk management strategy related to hedge accounting [table] Table

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*

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2045 Ifrs Statement scenario [axis] Axis viv:IfrsStatementScenarioAxis
2046 Ifrs Scenario, Unspecified [Domain] Member viv:IfrsScenarioUnspecifiedDomain
2047 Probable Member viv:ScenarioLikelyMember
2048 25% depreciation Member viv:ScenarioTwentyFivePercentDownwardVariationMember
2049 50% depreciation Member viv:ScenarioFiftyPercentDownwardVariationMember
2050 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2051 Risks [member] Member ifrs-full:TypesOfRisksMember
2052 Market risk Member ifrs-full:MarketRiskMember
2053 Hedge (long position) derivatives depreciation risk in Euro [member] Member viv:HedgeLongPositionDerivativesDepreciationRiskInEuroMember
2054 Debt appreciation risk for payables in Euro Member viv:DebtAppreciationRiskForPayablesInEuroMember
2055 Debt depreciation risk for receivables in Euro Member viv:DebtDepreciationRiskForReceivablesInEuroMember
2056 Hedge (short position) derivatives depreciation risk in US dollars Member viv:HedgeShortPositionDerivativesDepreciationRiskInUsDollarsMember
2057 Debt appreciation risk for payables in US dollars Member viv:DebtAppreciationRiskForPayablesInUsDollarsMember
2058 Debt depreciation risk for receivables in US dollars Member viv:DebtDepreciationRiskForReceivablesInUsDollarsMember
2059 Hedge (long position) derivatives risk of decrease risk in IPCA Member viv:HedgeLongPositionDerivativesRiskOfDecreaseRiskInIpcaMember
2060 Debt risk of increase in IPCA Member viv:DebtRiskOfIncreaseInIpcaMember
2061 Hedge (long position) derivatives risk of decrease risk in UMBND Member viv:HedgeLongPositionDerivativesRiskOfDecreaseRiskInUmbndMember
2062 Debt risk of increase in UMBND Member viv:DebtRiskOfIncreaseInUmbndMember
2063 Hedge (long position) derivatives risk of decrease risk in TJLP Member viv:HedgeLongPositionDerivativesRiskOfDecreaseRiskInTjlpMember
2064 Debt risk of increase in TJLP Member viv:DebtRiskOfIncreaseInTjlpMember
2065 Hedge US $ and Euro (short and long position) derivative risk decrease in CDI Member viv:HedgeUsAndEuroShortAndLongPositionDerivativeRiskDecreaseInCdiMember
2066 Hedge IPCA short position derivatives risk of increase in CDI Member viv:HedgeIpcaShortPositionDerivativesRiskOfIncreaseInCdiMember
2067 Hedge UMBND short position derivatives risk of increase in CDI Member viv:HedgeUmbndShortPositionDerivativesRiskOfIncreaseInCdiMember
2068 Hedge TJLP short position derivatives risk of increase in CDI Member viv:HedgeTjlpShortPositionDerivativesRiskOfIncreaseInCdiMember
2069 FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT LineItems ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems
2070 Percentage of risk deterioration for scenario one Concept (Percent) For Period viv:PercentageOfRiskDeteriorationForScenarioOne
2071 Percentage of risk deterioration for scenario two Concept (Percent) For Period viv:PercentageOfRiskDeteriorationForScenarioTwo
2072 Number of scenarios Concept (Integer) As Of viv:NumberOfScenarios
2073 Net exposure in euro Concept (Monetary) As Of viv:NetExposureInEuroMarketRisk
2074 Net exposure in us dollars hedge short position Concept (Monetary) As Of viv:NetExposureInUsDollarsHedgeShortPositionMarketRisk
2075 Net exposure in IPCA Concept (Monetary) As Of viv:NetExposureInIpcaMarketRisk
2076 Net exposure in UMBND Concept (Monetary) As Of viv:NetExposureInUmbndMarketRisk
2077 Net exposure in TJLP Concept (Monetary) As Of viv:NetExposureInTjlpMarketRisk
2078 Net exposure in hedge CDI position Concept (Monetary) As Of viv:NetExposureInHedgeCdiPositionMarketRisk
2079 Total net exposure in each scenario Concept (Monetary) As Of viv:NetExposureMarketRisk
2080 Net effect on changes in current fair value Concept (Monetary) For Period Credit viv:NetEffectOnChangesInCurrentFairValueUnderAssumptionsOfInterestRateSensitivityAnalysis
2081 43105 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Sensitivity analysis assumptions (Details) Network

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2082 Disclosure of sensitivity analysis for actuarial assumptions [table] Table

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2083 Ifrs Statement scenario [axis] Axis viv:IfrsStatementScenarioAxis
2084 Ifrs Scenario, Unspecified [Domain] Member viv:IfrsScenarioUnspecifiedDomain
2085 Probable Member viv:ScenarioLikelyMember
2086 25% depreciation Member viv:ScenarioTwentyFivePercentDownwardVariationMember
2087 50% depreciation Member viv:ScenarioFiftyPercentDownwardVariationMember
2088 Currency [Axis] Axis srt:CurrencyAxis
2089 All Currencies [Domain] Member currency:AllCurrenciesDomain
2090 US Dollar Member currency:USD
2091 Euro Member currency:EUR
2092 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
2093 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
2094 Floating interest rate Member ifrs-full:FloatingInterestRateMember
2095 IPCA Member viv:BoardConsumerPriceIndexMember
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2102 Risk Variable Ratio Concept (Pure) For Period viv:SensitivityAnalysisAssumptionsRiskVariableRatio
2103 43106 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Fair value (Details) Network

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2104 Implied Table Table

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2107 Transfers from level 2 to 1 assets Concept (Monetary) For Period ifrs-full:TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets
2108 Transfers from level 1 to 2 liabilities Concept (Monetary) For Period ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyLiabilities
2109 Transfers from level 2 to 1 liabilities Concept (Monetary) For Period ifrs-full:TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities
2110 Transfers in to level 3 Concept (Monetary) For Period Debit ifrs-full:TransfersIntoLevel3OfFairValueHierarchyAssets
2111 Transfers out of level 3 Concept (Monetary) For Period Credit ifrs-full:TransfersOutOfLevel3OfFairValueHierarchyAssets
2112 43107 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Composition of consolidated financial assets and liabilities (Details) Network

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2113 Disclosure of nature and extent of risks arising from financial instruments [table] Table

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2139 Level 2 Member ifrs-full:Level2OfFairValueHierarchyMember
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2151 Noncurrent financial liabilities Fair value Concept (Monetary) As Of Credit viv:NonCurrentFinancialLiabilitiesAtFairValue
2152 Fair value of financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtFairValue
2153 43108 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Capital Management (Details) Network

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 http://www.telefonica.com/role/DisclosureFinancialInstrumentsAndRiskAndCapitalManagementCapitalManagementDetails
2154 Disclosure of nature and extent of risks arising from financial instruments [table] Table

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*

 ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
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2170 43109 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Currency and Interest Risk (Details) Network

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 http://www.telefonica.com/role/DisclosureFinancialInstrumentsAndRiskAndCapitalManagementCurrencyAndInterestRiskDetails
2171 Disclosure of risk management strategy related to hedge accounting [table] Table

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*

 ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable
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2184 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
2185 43110 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Liquidity Risk (Details) Network

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 http://www.telefonica.com/role/DisclosureFinancialInstrumentsAndRiskAndCapitalManagementLiquidityRiskDetails
2186 Disclosure of risk management strategy related to hedge accounting [table] Table

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*

 ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable
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2189 Liquidity Risk Member ifrs-full:LiquidityRiskMember
2190 Maturity [axis] Axis ifrs-full:MaturityAxis
2191 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2192 2019 Member ifrs-full:NotLaterThanOneYearMember
2193 2020 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
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2205 43111 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Social and Environmental Risks (Details) Network

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 http://www.telefonica.com/role/DisclosureFinancialInstrumentsAndRiskAndCapitalManagementSocialAndEnvironmentalRisksDetails
2206 Disclosure of contingent liabilities [table] Table

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2207 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
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2212 43112 - Disclosure - FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT - Insurance Coverage (Details) Network

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 http://www.telefonica.com/role/DisclosureFinancialInstrumentsAndRiskAndCapitalManagementInsuranceCoverageDetails
2213 Implied Table Table

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 implied:Table
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2216 Maximum limits of claims for general civil liability risks Concept (Monetary) As Of Debit viv:MaximumCoverageOfInsuranceClaimsGeneralCivilLiabilityRisks
2217 43201 - Disclosure - LEASE (Details) Network

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 http://www.telefonica.com/role/DisclosureLeaseDetails
2218 Implied Table Table

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 implied:Table
2219 LEASE Abstract ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract
2220 Financing lease assets amount Concept (Monetary) As Of Debit ifrs-full:RecognisedFinanceLeaseAsAssets
2221 43301 - Disclosure - COMMITMENTS AND GUARANTEES (RENTALS) - Non-cancellable operating agreements (Details) Network

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2222 Disclosure of finance lease and operating lease by lessee [table] Table

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 ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
2223 Maturity [axis] Axis ifrs-full:MaturityAxis
2224 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
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2227 Over five years Member ifrs-full:LaterThanFiveYearsMember
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2229 Amount corresponding to contracts Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
2230 43401 - Disclosure - ADDITIONAL INFORMATION ON CASH FLOWS (Details) Network

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 http://www.telefonica.com/role/DisclosureAdditionalInformationOnCashFlowsDetails
2231 Disclosure of detailed information about borrowings [table] Table

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 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
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2250 Financing transactions with suppliers Concept (Monetary) For Period Credit viv:FinancingTransactionsWithSuppliers
2251 Acquisition of assets through financial leases Concept (Monetary) For Period Debit viv:AcquisitionOfAssetsByMeansOfFinanceLeases
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2253 43501 - Disclosure - ADDITIONAL INFORMATION ON THE CONSOLIDATED INCOME STATEMENT - IFRS 15 (Details) Network

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2254 IFRS Statement [Table] Table

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*

 viv:IfrsStatementTable
2255 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
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2257 IFRS adjustments 15 Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
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2261 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
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2263 Operating income (expenses) Concept (Monetary) For Period Debit viv:OperatingExpenseIncomeExcludingCostOfSales
2264 Selling expenses Concept (Monetary) For Period Debit ifrs-full:SellingExpense
2265 General and administrative expenses Concept (Monetary) For Period Debit ifrs-full:GeneralAndAdministrativeExpense
2266 Other operating income Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
2267 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:MiscellaneousOtherOperatingExpense
2268 Operating income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
2269 Financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
2270 Finance expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
2271 Equity pickup Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
2272 Income before taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
2273 Income and social contribution taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
2274 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
2275 43601 - Disclosure - SUBSEQUENT EVENTS (Details) Network

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 http://www.telefonica.com/role/DisclosureSubsequentEventsDetails
2276 Disclosure of non-adjusting events after reporting period [table] Table

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2280 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
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2286 Gross interest on equity, per share Concept (Share) For Period viv:InterestOnEquityGrossValuePerShare
2287 Net interest on equity Concept (Monetary) For Period Debit viv:InterestOnEquityNetValueAfterWithholdingIncomeTax
2288 Net interest on equity, per share Concept (Share) For Period viv:InterestOnEquityNetValuePerShareAfterWithholdingIncomeTax

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