BANCO SANTANDER CHILE (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 00000001 - Document - Document and Entity Information Network

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3 Document And Entity Information Abstract bsac:DocumentAndEntityInformationAbstract
4 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
5 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
6 Document Type Concept (Submission Type) For Period dei:DocumentType
7 Trading symbol Concept (Text/String) For Period dei:TradingSymbol
8 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
9 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
10 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
11 Entity a Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
12 Entity a Voluntary Filer Concept (Yes/No) For Period dei:EntityVoluntaryFilers
13 Entity's Reporting Status Current Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
14 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
15 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
16 Entity Shell Company Concept (Yes/No) For Period dei:EntityShellCompany
17 Entity Public Float Concept (Monetary) As Of Credit dei:EntityPublicFloat
18 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
19 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
20 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
21 00000002 - Statement - CONSOLIDATED STATEMENTS OF FINANCIAL POSITION Network

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 http://santander.cl/role/ConsolidatedStatementsOfFinancialPosition
22 Implied Table Table

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23 Statement of financial position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
24 ASSETS Abstract ifrs-full:AssetsAbstract
25 Cash and deposits in banks Concept (Monetary) As Of Debit ifrs-full:CashAndBankBalancesAtCentralBanks
26 Cash items in process of collection Concept (Monetary) As Of Debit ifrs-full:ItemsInCourseOfCollectionFromOtherBanks
27 Investments under resale agreements Concept (Monetary) As Of Debit ifrs-full:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed
28 Financial derivative contracts Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
29 Trading investments Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading
30 Interbank loans, net Concept (Monetary) As Of Debit ifrs-full:LoansAndAdvancesToBanks
31 Loans and accounts receivable from customers, net Concept (Monetary) As Of Debit ifrs-full:LoansAndAdvancesToCustomers
32 Available for sale investments Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAvailableforsale
33 Financial assets held for trading Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssetsHeldForTrading
34 Loans and account receivable at amortised cost Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtAmortisedCost
35 Loans and account receivable at fair value through other comprehensive income Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughOtherComprehensiveIncome
36 Debt instrument at fair value through other comprehensive income Concept (Monetary) As Of Debit bsac:DebtInstrumentAtFairValueThroughOtherComprehensiveIncome
37 Equity instruments at fair value through other comprehensive income Concept (Monetary) As Of Debit bsac:EquityInstrumentsAtFairValueThroughOtherComprehensiveIncome
38 Investments in associates and other companies Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
39 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
40 Property, plant, and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
41 Deferred taxes Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
42 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherFinancialAssets
43 TOTAL ASSETS Concept (Monetary) As Of Debit ifrs-full:Assets
44 LIABILITIES Abstract ifrs-full:LiabilitiesAbstract
45 Deposits and other demand liabilities Concept (Monetary) As Of Credit ifrs-full:DepositsFromCustomers
46 Cash items in process of being cleared Concept (Monetary) As Of Credit ifrs-full:ItemsInCourseOfTransmissionToOtherBanks
47 Obligations under repurchase agreements Concept (Monetary) As Of Credit ifrs-full:RepurchaseAgreementsAndCashCollateralOnSecuritiesLent
48 Time deposits and other time liabilities Concept (Monetary) As Of Credit bsac:TimeDepositsAndOtherTimeLiabilities
49 Financial derivative contracts Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
50 Interbank borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
51 Issued debt instruments Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
52 Other financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherFinancialLiabilities
53 Current taxes Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
54 Deferred taxes Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
55 Provisions Concept (Monetary) As Of Credit ifrs-full:Provisions
56 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNonfinancialLiabilities
57 TOTAL LIABILITIES Concept (Monetary) As Of Credit ifrs-full:Liabilities
58 EQUITY Abstract ifrs-full:EquityAbstract
59 Attributable to the shareholders of the Bank: Abstract bsac:AttributableToEquityHoldersOfBankAbstract
60 Capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
61 Reserves Concept (Monetary) As Of Credit ifrs-full:CapitalReserve
62 Valuation adjustments Concept (Monetary) As Of Credit bsac:ValuationAdjustments
63 Retained earnings Abstract bsac:RetainedEarningsAbstract
64 Retained earnings from prior years Concept (Monetary) As Of Credit bsac:RetainedEarningsFromPriorYears
65 Income for the year Concept (Monetary) As Of Credit bsac:IncomeForYear
66 Minus: Provision for mandatory dividends Concept (Monetary) As Of Debit bsac:ProvisionsForMinimumDividend
67 Retained earnings Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
68 Attributable to the shareholders of the Bank Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
69 Non-controlling interest Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
70 TOTAL EQUITY Concept (Monetary) As Of Credit ifrs-full:Equity
71 TOTAL LIABILITIES AND EQUITY Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
72 00000003 - Statement - CONSOLIDATED STATEMENTS OF INCOME Network

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73 Implied Table Table

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74 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
75 OPERATING INCOME Abstract bsac:OperatingIncomeLoss1Abstract
76 Interest income Concept (Monetary) For Period Credit ifrs-full:InterestRevenueCalculatedUsingEffectiveInterestMethod
77 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
78 Net interest income Concept (Monetary) For Period Credit ifrs-full:InterestIncomeOnFinancialAssetsDesignatedAtFairValueThroughProfitOrLoss
79 Fee and commission income Concept (Monetary) For Period Credit ifrs-full:FeeAndCommissionIncome
80 Fee and commission expense Concept (Monetary) For Period Debit ifrs-full:FeeAndCommissionExpense
81 Net fee and commission income Concept (Monetary) For Period Credit ifrs-full:FeeAndCommissionIncomeExpense
82 Net income (expense) from financial operations Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
83 Net foreign exchange gain Concept (Monetary) For Period Credit bsac:ForeignExchangeTransactionsNet
84 Other operating income Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
85 Net operating profit before provision for loan losses Concept (Monetary) For Period Credit ifrs-full:RevenueAndOperatingIncome
86 Provision for loan losses Concept (Monetary) For Period Debit ifrs-full:ProvisionUsedOtherProvisions
87 NET OPERATING INCOME Concept (Monetary) For Period Credit bsac:OperatingRevenuesNetOfProvisionsForLoanLosses
88 Personnel salaries and expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
89 Administrative expenses Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
90 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
91 Impairment of property, plant, and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
92 Other operating expenses Concept (Monetary) For Period Debit bsac:OtherExpenseByFunction1
93 Total operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
94 OPERATING INCOME Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
95 Income from investments in associates and other companies Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
96 Income before tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
97 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
98 NET INCOME FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
99 Attributable to: Abstract ifrs-full:ProfitLossAttributableToAbstract
100 Shareholders of the Bank Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
101 Non-controlling interest Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
102 Earnings per share attributable to Shareholders of the Bank : Abstract ifrs-full:EarningsPerShareAbstract
103 Basic earnings Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
104 Diluted earnings Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
105 00000004 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Network

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106 Implied Table Table

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107 Consolidated Statements Of Comprehensive Income Abstract bsac:ConsolidatedStatementOfComprehensiveIncomeAbstract
108 NET INCOME FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
109 Other comprehensive income that will not be reclassified to profit or loss Concept (Text/String) For Period bsac:OtherComprehensiveIncomeThatWillNotBeReclassifiedToToProfitOrLossAbstract
110 Equity instruments at fair value through other comprehensive income Concept (Monetary) For Period Debit bsac:EquityInstrumentsAtFairValueThroughOtherComprehensive
111 Income tax related to the above Concept (Monetary) For Period Debit bsac:IncomeTaxRelatedToAbove
112 Total items that will not be reclassified to the income statements Concept (Monetary) For Period Credit bsac:TotalItemsThatWillNotBeReclassifiedToIncomeStatement
113 Other comprehensive income that will be reclassified to profit or loss Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTaxAbstract
114 Debt instruments at fair value through other comprehensive income Concept (Monetary) For Period Debit bsac:DebtInstrumentAtFairValueThroughOtherComprehensiveIncome1
115 Avalilable for sale financial assets Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAssets
116 Cash flow hedge Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges
117 Income tax related to the above Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss
118 Total items that will be reclassified to the income statements Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
119 Other comprehesive income for the year, net of tax Concept (Monetary) For Period Credit bsac:OtherComprehesiveIncomeForYearNetOfTax
120 TOTAL COMPREHENSIVE INCOME FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
121 Attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
122 Shareholders of the Bank Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
123 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
124 00000005 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Network

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 http://santander.cl/role/ConsolidatedStatementsOfChangesInEquity
125 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
126 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
127 Equity [member] Member ifrs-full:EquityMember
128 Capital [Member] Member ifrs-full:IssuedCapitalMember
129 Reserves And Other Retained Earnings [Member] Member bsac:ReservesAndOtherRetainedEarningsMember
130 Effects Of Merger Of Companies Under Common Control [Member] Member bsac:EffectsOfMergerOfCompaniesUnderCommonControlMember
131 Fair Value Reserve [Member] Member bsac:FairValueReserveMember
132 Cash Flow Hedge [Member] Member ifrs-full:CashFlowHedgesMember
133 Income Tax Effects [Member] Member bsac:IncomeTaxEffectsMember
134 Retained Earnings Of Prior Years [Member] Member bsac:RetainedEarningsOfPriorYearsMember
135 Income For The Year [Member] Member ifrs-full:RetainedEarningsMember
136 Provision For Mandatory Dividends [Member] Member bsac:ProvisionForMandatoryDividendsMember
137 Total Attributable To Shareholders Of The Bank [Member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
138 Non-Controlling Interests [Member] Member bsac:NonControllingInterest1Member
139 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
140 Changes in equity [Roll Forward] Abstract ifrs-full:ChangesInEquityAbstract
141 Equity at beginning Concept (Monetary) As Of Credit ifrs-full:Equity
142 Distribution of income from previous period Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears
143 Equity at beginning Concept (Monetary) As Of Credit bsac:EquityBeforeDividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears
144 Impact of adopting IFRS 9 Concept (Monetary) For Period Debit bsac:ImpactOfAdoptingIfrs9
145 Restated opening balance under IFRS 9 Concept (Monetary) For Period Debit bsac:RestatedOpeningBalanceUnderIfrs9
146 Dividends distributions/ withdrawals made Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear
147 Transfer of retained earnings to reserves Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAppropriationOfRetainedEarnings
148 Provision for mandatory dividends Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
149 Subtotal Concept (Monetary) For Period Credit bsac:AdjustmentSubtotal
150 Other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
151 Income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
152 Subtotal Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
153 Equity at ending Concept (Monetary) As Of Credit ifrs-full:Equity
154 00000006 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) Network

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155 Implied Table Table

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156 Statement of changes in equity [abstract] Abstract ifrs-full:StatementOfChangesInEquityAbstract
157 Total attributable to shareholders of the Bank Concept (Monetary) For Period Credit bsac:TotalAttributableToEquityHoldersOfBank
158 Allocated to reserves Concept (Monetary) For Period Debit bsac:AllocatedToReserves
159 Allocated to dividends Concept (Monetary) For Period Debit bsac:AllocatedToDividends
160 Percentage distributed Concept (Percent) For Period bsac:PercentageDistributed
161 Number of shares Concept (Shares) For Period bsac:NumberOfShares
162 Dividend per share (in pesos per share) Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
163 00000007 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Network

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164 Implied Table Table

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165 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
166 A - CASH FLOWS FROM OPERATING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
167 NET INCOME FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
168 Adjustments for non-cash items included in net income Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForReconcileProfitLoss
169 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
170 Impairment of property, plant, and equipment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
171 Provision for loan losses Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForProvisions
172 Mark to market of trading investments Concept (Monetary) For Period Credit bsac:AdjustmentForMarkToMarketOfTradingnvestments
173 Income from investments in associates and other companies Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForUndistributedProfitsOfAssociates
174 Net gain on sale of assets received in lieu of payment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
175 Provision on assets received in lieu of payment Concept (Monetary) For Period Debit bsac:AdjustmentForProvisionOnAssetsReceivedInIieuOfPayment
176 Net gain on sale of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment
177 Net interest income Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForFinanceIncomeCost
178 Net fee and commission income Concept (Monetary) For Period Credit bsac:AdjsutmentForNetFeeAndCommissionIncome
179 Other non-cash items Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsToReconcileProfitLoss
180 Changes in deferred taxes Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDeferredTaxExpense
181 Increase/decrease in operating assets and liabilities Concept (Monetary) For Period Debit bsac:IncreaseDecreaseInOperatingsCapital
182 (Increase) of loans and accounts receivables from customers, net Concept (Monetary) For Period Credit bsac:AdjustmentsForDecreaseIncreaseInLoansAndAccountReceivableFromCustomersNet
183 Decrease (increase) of financial investments Concept (Monetary) For Period Credit bsac:AdjustmentsForDecreaseIncreaseInFinancialInvestments
184 Decrease (increase) due to resale agreements (assets) Concept (Monetary) For Period Credit bsac:AdjustmentsForDecreaseIncreaseInDueToResaleAgreements
185 Decrease (increase) of interbank loans Concept (Monetary) For Period Credit bsac:AdjustmentsForDecreaseIncreaseInInterbanksLoans
186 Decrease of assets received or awarded in lieu of payment Concept (Monetary) For Period Credit bsac:AdjustmentsForDecreaseIncreaseInLieuOfPayment
187 Increase of debits in customers checking accounts Concept (Monetary) For Period Debit bsac:AdjustmentsForDecreaseIncreaseInDebitsInCustomersCheckingAccounts
188 (Decrease) increase of time deposits and other time liabilities Concept (Monetary) For Period Debit bsac:AdjustmentsForDecreaseIncreaseInTimeDepositsAndOtherTimeLiabilities
189 Increase (decrease) of obligations with domestic banks Concept (Monetary) For Period Debit bsac:AdjustmentsForDecreaseIncreaseInObligationsWithDomesticBanks
190 Increase (decrease) of other demand liabilities or time obligations Concept (Monetary) For Period Debit bsac:AdjustmentsForDecreaseIncreaseInDemandLiabilitiesOrTimeObligations
191 Increase of obligations with foreign banks Concept (Monetary) For Period Debit bsac:AdjustmentsForDecreaseIncreaseInObligationsWithForeignBanks
192 (Decrease) increase of obligations with Central Bank of Chile Concept (Monetary) For Period Debit bsac:AdjustmentsForDecreaseIncreaseInObligationsWithCentralBankOfChile
193 (Decrease) increase of obligations under repurchase agreements Concept (Monetary) For Period Debit bsac:AdjustmentsForDecreaseIncreaseInObligationsUnderRepurchaseAgreements
194 Increase in other financial liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities
195 (Decrease) increase of other assets and liabilities Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
196 Redemption of letters of credit Concept (Monetary) For Period Credit bsac:AdjsutmentForRedemptionOfLettersOfCredit
197 Senior bond issuances Concept (Monetary) For Period Debit bsac:AdjsutmentForSeniorBondIssuances
198 Redemption of mortgage bonds and payments of interest Concept (Monetary) For Period Debit bsac:AdjsutmentForRedemptionOfMortgageBondsAndPaymentsOfInterest
199 Redemption of senior bonds and payments of interest Concept (Monetary) For Period Credit bsac:AdjsutmentForRedemptionOfSeniorBondsAndPaymentsOfInterest
200 Redemption of subordinated bonds and payments of interest Concept (Monetary) For Period Credit bsac:AdjsutmentForRedemptionOfSubordinatedBondsAndPaymentsOfInterest
201 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
202 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
203 Dividends received from investments in other companies Concept (Monetary) For Period Debit ifrs-full:DividendsReceivedClassifiedAsOperatingActivities
204 Fees and commissions received Concept (Monetary) For Period Debit bsac:AdjsutmentForFeesAndCommissionsReceived
205 Fees and commissions paid Concept (Monetary) For Period Credit bsac:AdjsutmentForFeesAndCommissionsPaid
206 Total cash flow (used in) provided by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
207 B - CASH FLOWS FROM INVESTMENT ACTIVITIES: Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
208 Purchases of property, plant, and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
209 Sales of property, plant, and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
210 Purchases of investments in associates and other companies Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInAssociates
211 Purchases of intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
212 Total cash flow .used in investment activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
213 C - CASH FLOW FROM FINANCING ACTIVITIES: Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
214 From shareholders' financing activities Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfOrdinaryShares
215 Dividends paid Concept (Monetary) For Period Credit ifrs-full:DividendsPaidClassifiedAsFinancingActivities
216 Total cash flow used in financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
217 D - NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS DURING THE YEAR Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
218 E - EFFECTS OF FOREIGN EXCHANGE RATE FLUCTUATIONS Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
219 F - INITIAL BALANCE OF CASH AND CASH EQUIVALENTS Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
220 FINAL BALANCE OF CASH AND CASH EQUIVALENTS Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
221 Reconciliation of provisions for the Consolidated Statements of Cash Flow for the year ended Concept (Text/String) For Period bsac:ReconciliationOfProvisionsAbstract
222 Provision for loan losses for cash flow purposes Concept (Monetary) For Period Debit bsac:ProvisionForLoanLossesForCashFlowPurposes
223 Recovery of loans previously charged off Concept (Monetary) For Period Credit bsac:RecoveryOfLoansPreviouslyCharged
224 Provision for loan losses - net Concept (Monetary) For Period Debit bsac:ProvisionForLoanLossesNet
225 00000009 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Network

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228 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
229 00000010 - Disclosure - ACCOUNTING CHANGES Network

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232 ACCOUNTING CHANGES Concept (Text Block (HTML)) For Period bsac:AccountingChangesExplanatory
233 00000011 - Disclosure - SIGNIFICANT EVENTS Network

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237 00000012 - Disclosure - REPORTING SEGMENTS Network

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240 REPORTING SEGMENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
241 00000013 - Disclosure - CASH AND CASH EQUIVALENTS Network

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244 CASH AND CASH EQUIVALENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
245 00000014 - Disclosure - FINANCIAL ASSETS HELD FOR TRADING / TRADING INVESTMENTS Network

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246 Implied Table Table

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248 FINANCIAL ASSETS HELD FOR TRADING / TRADING INVESTMENTS Concept (Text Block (HTML)) For Period bsac:FinancialAssetsHeldForTradingTradingInvestmentsExplanatory
249 00000015 - Disclosure - INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS Network

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252 INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRepurchaseAndReverseRepurchaseAgreementsExplanatory
253 00000016 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING Network

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256 DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory
257 00000017 - Disclosure - LOANS AND ACCOUNT RECEIVABLE AT AMORTISED COST - under IFRS 9 Network

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258 Implied Table Table

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261 00000018 - Disclosure - LOANS AND ACCOUNT RECEIVABLE AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME - under IFRS 9 Network

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262 Implied Table Table

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264 LOANS AND ACCOUNT RECEIVABLE AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME - under IFRS 9 Concept (Text Block (HTML)) For Period bsac:LoansAndAccountReceivableAtFairValueThroughOtherComprehensiveIncomeUnderIfrs9Explanatory
265 00000019 - Disclosure - LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS and INTERBANK LOANS (under IAS 39) Network

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266 Implied Table Table

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269 00000020 - Disclosure - DEBT INSTRUMENTS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME Network

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272 DEBT INSTRUMENTS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAvailableforsaleAssetsExplanatory
273 00000021 - Disclosure - INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES Network

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276 INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInOtherEntitiesExplanatory
277 00000022 - Disclosure - INTANGIBLE ASSETS Network

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280 INTANGIBLE ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
281 00000023 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT Network

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 http://santander.cl/role/PropertyPlantAndEquipment
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284 PROPERTY, PLANT, AND EQUIPMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
285 00000024 - Disclosure - CURRENT AND DEFERRED TAXES Network

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288 CURRENT AND DEFERRED TAXES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
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290 Implied Table Table

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292 OTHER ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherAssetsExplanatory
293 00000026 - Disclosure - TIME DEPOSITS AND OTHER TIME LIABILITIES Network

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 http://santander.cl/role/TimeDepositsAndOtherTimeLiabilities
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296 TIME DEPOSITS AND OTHER TIME LIABILITIES Concept (Text Block (HTML)) For Period bsac:TimeDepositsAndOtherTimeLiabilitiesExplanatory
297 00000027 - Disclosure - INTERBANK BORROWINGS Network

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300 INTERBANK BORROWINGS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingsExplanatory
301 00000028 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES Network

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 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilities
302 Implied Table Table

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304 ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDebtSecuritiesExplanatory
305 00000029 - Disclosure - MATURITY OF FINANCIAL ASSETS AND LIABILITIES Network

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 http://santander.cl/role/MaturityOfFinancialAssetsAndLiabilities
306 Implied Table Table

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308 MATURITY OF FINANCIAL ASSETS AND LIABILITIES Concept (Text Block (HTML)) For Period bsac:DisclosureOfMaturityOfAssetsAndLiabilitiesExplanatory
309 00000030 - Disclosure - PROVISIONS AND CONTINGENT PROVISIONS Network

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 http://santander.cl/role/ProvisionsAndContingentProvisions
310 Implied Table Table

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312 PROVISIONS AND CONTINGENT PROVISIONS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfProvisionsExplanatory
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 http://santander.cl/role/OtherLiabilities
314 Implied Table Table

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316 OTHER LIABILITIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherLiabilitiesExplanatory
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 http://santander.cl/role/ContingenciesAndCommitments
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321 00000033 - Disclosure - EQUITY Network

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324 EQUITY Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
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 http://santander.cl/role/Non-controllingInterest
326 Implied Table Table

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328 NON-CONTROLLING INTEREST Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNoncontrollingInterestsExplanatory
329 00000035 - Disclosure - INTEREST INCOME Network

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 http://santander.cl/role/InterestIncome
330 Implied Table Table

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332 INTEREST INCOME Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestIncomeExpenseExplanatory
333 00000036 - Disclosure - FEES AND COMMISSIONS Network

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 http://santander.cl/role/FeesAndCommissions
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336 FEES AND COMMISSIONS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFeeAndCommissionIncomeExpenseExplanatory
337 00000037 - Disclosure - NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS Network

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340 NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory
341 00000038 - Disclosure - NET FOREIGN EXCHANGE GAIN (LOSS) Network

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 http://santander.cl/role/NetForeignExchangeGainLoss
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344 NET FOREIGN EXCHANGE GAIN (LOSS) Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory
345 00000039 - Disclosure - EXPECTED CREDIT LOSSESS ALLOWANCE Network

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 http://santander.cl/role/ExpectedCreditLossessAllowance
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348 EXPECTED CREDIT LOSSESS ALLOWANCE Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAllowanceForCreditLossesExplanatory
349 00000040 - Disclosure - PERSONNEL SALARIES AND EXPENSES Network

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353 00000041 - Disclosure - ADMINISTRATIVE EXPENSES Network

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 http://santander.cl/role/AdministrativeExpenses
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356 ADMINISTRATIVE EXPENSES Concept (Text Block (HTML)) For Period bsac:DisclosureOfExpensesByNature1Explanatory
357 00000042 - Disclosure - DEPRECIATION, AMORTIZATION, AND IMPAIRMENT Network

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 http://santander.cl/role/DepreciationAmortizationAndImpairment
358 Implied Table Table

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360 DEPRECIATION, AMORTIZATION, AND IMPAIRMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDepreciationAndAmortisationExpenseExplanatory
361 00000043 - Disclosure - OTHER OPERATING INCOME AND EXPENSES Network

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 http://santander.cl/role/OtherOperatingIncomeAndExpenses
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364 OTHER OPERATING INCOME AND EXPENSES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingIncomeExpenseExplanatory
365 00000044 - Disclosure - TRANSACTIONS WITH RELATED PARTIES Network

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 http://santander.cl/role/TransactionsWithRelatedParties
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368 TRANSACTIONS WITH RELATED PARTIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
369 00000045 - Disclosure - PENSION PLANS Network

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 http://santander.cl/role/PensionPlans
370 Implied Table Table

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371 Pension Plans Abstract bsac:PensionPlansAbstract
372 PENSION PLANS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEmployeeBenefitsExplanatory
373 00000046 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES Network

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 http://santander.cl/role/FairValueOfFinancialAssetsAndLiabilities
374 Implied Table Table

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376 FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementExplanatory
377 00000047 - Disclosure - RISK MANAGEMENT Network

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 http://santander.cl/role/RiskManagement
378 Implied Table Table

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380 RISK MANAGEMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialRiskManagementExplanatory
381 00000048 - Disclosure - SUBSEQUENT EVENTS Network

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 http://santander.cl/role/SubsequentEvents
382 Implied Table Table

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384 SUBSEQUENT EVENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
385 00000049 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) Network

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 http://santander.cl/role/SummaryOfSignificantAccountingPoliciesPolicies
386 Implied Table Table

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389 Basis of preparation for the Consolidated Financial Statements Concept (Text Block (HTML)) For Period bsac:DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatory
390 Non-controlling interest Concept (Text Block (HTML)) For Period bsac:DescriptionOfAccountingPolicyForNonControllingInterestExplanatory
391 Reporting segments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory
392 Functional and presentation currency Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory
393 Foreign currency transactions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
394 Classification and measurement of financial instrument - under IFRS 9 (first adoption) Concept (Text Block (HTML)) For Period bsac:DescriptionOfAccountingPolicyForClassificationAndMeasurementOfFinancialInstrumentUnderIfrs9FirstAdoptionExplanatory
395 Definitions and classification of financial instruments - under IAS 39 (for 2017 balances) Concept (Text Block (HTML)) For Period bsac:DescriptionOfAccountingPolicyForDefinitionsAndClassificationOfFinancialInstrumentsExplanatory
396 Derivatives and hedging activities Concept (Text Block (HTML)) For Period bsac:DescriptionOfAccountingPolicyDerivativesAndHedgingActivitiesExplanatory
397 Fair value measurement Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory
398 Recognising income and expenses Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory
399 Impairment of non-financial assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
400 Property, plant, and equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
401 Leasing Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
402 Intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory
403 Cash and cash equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
404 Expected credit losses allowance - under IFRS 9 Concept (Text Block (HTML)) For Period bsac:DescriptionOfAccountingPolicyForExpectedCreditLossesAllowanceUnderIfrs9Explanatory
405 Allowance for loan losses - under IAS 39 Concept (Text Block (HTML)) For Period bsac:DescriptionOfAccountingPolicyForAllowancesForLoanLossesExplanatory
406 Provisions, contingent assets, and contingent liabilities Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory
407 Deferred income taxes and other deferred taxes Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
408 Use of estimates Concept (Text Block (HTML)) For Period bsac:DescriptionOfAccountingPolicyForUseOfEstimatesExplanatory
409 Non-current assets held for sale (in "Other Assets") Concept (Text Block (HTML)) For Period bsac:DescriptionOfAccountingPolicyForNoncurrentAssetsHeldForSaleInOtherAssetsExplanatory
410 Earnings per share Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
411 Temporary acquisition (assignment) of assets and liabilities Concept (Text Block (HTML)) For Period bsac:DescriptionOfAccountingPolicyForTemporaryAcquisitionAssignmentOfAssetsAndLiabilitiesExplanatory
412 Provision for mandatory dividends Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDividendsExplanatory
413 Employee benefits Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
414 Application of new and revised International Financial Reporting Standards Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfOtherAccountingPoliciesRelevantToUnderstandingOfFinancialStatements
415 00000050 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) Network

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419 Schedule of associates Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesExplanatory
420 Schedule of useful lives for the tangible assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
421 Schedule of loan and accounts receivable charge-offs Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutLoanByTypeOfExplanatory
422 00000051 - Disclosure - ACCOUNTING CHANGES (Tables) Network

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425 Schedule of financial position and retained earning Concept (Text Block (HTML)) For Period bsac:ScheduleOfFinancialPositionAndRetainedEarning
426 Schedule of impairment allowance Concept (Text Block (HTML)) For Period bsac:ScheduleOfImpairmentAllowance
427 Schedule of composation of loan portfolio Concept (Text Block (HTML)) For Period bsac:ScheduleOfComposationOfLoanPortfolio
428 00000052 - Disclosure - SIGNIFICANT EVENTS (Tables) Network

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431 Schedule of senior bonds Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutSeniorBondsExplanatory
432 Schedule of repurchase of bonds Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutRepurchaseOfBondsExplanatory
433 00000053 - Disclosure - REPORTING SEGMENTS (Tables) Network

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436 Schedule of reporting segment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
437 00000054 - Disclosure - CASH AND CASH EQUIVALENTS (Tables) Network

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 http://santander.cl/role/CashAndCashEquivalentsTables
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441 Schedule of cash in process of collection and in process Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutCashInProcessOfCollectionAndInProcessExplanatory
442 00000055 - Disclosure - FINANCIAL ASSETS HELD FOR TRADING / TRADING INVESTMENTS (Tables) Network

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443 Implied Table Table

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445 Schedule of instruments deemed as financial trading investments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsHeldForTradingExplanatory
446 00000056 - Disclosure - INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS (Tables) Network

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 http://santander.cl/role/InvestmentsUnderResaleAgreementsAndObligationsUnderRepurchaseAgreementsTables
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449 Schedule of receivables from repurchase agreements and security borrowing Concept (Text Block (HTML)) For Period bsac:DetailedInformationAboutReceivablesFromRepurchaseAgreementsAndSecurityBorrowingExplanatory
450 Schedule of selling financial instruments Concept (Text Block (HTML)) For Period bsac:DetailedInformationAboutSellingFinancialInstrumentsExplanatory
451 Schedule of portfolio of collateral associated with repurchase agreements at fair value Concept (Text Block (HTML)) For Period bsac:DetailedInformationAboutPortfolioOfCollateralAssociatedWithRepurchaseAgreementsAtFairValueExplanatory
452 00000057 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Tables) Network

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456 Schedule of fair value hedged Concept (Text Block (HTML)) For Period bsac:ScheduleOfHedgedElementsAndHedgeInstrumentsUnderFairValueHedgesClassifiedByTermMaturityExplanatory
457 Schedule of cash flow hedged Concept (Text Block (HTML)) For Period bsac:ScheduleOfCashFlowHedgedOfNotionalAmountExplanatory
458 Schedule of forecasted cash flows for interest rate risk Concept (Text Block (HTML)) For Period bsac:ScheduleOfForecastedCashFlowsForInterestRateRiskExplanatory
459 Schedule of forecasted cash flows for inflation risk Concept (Text Block (HTML)) For Period bsac:ScheduleOfForecastedCashFlowsForInflationRiskExplanatory
460 Schedule of market adjustment of cash flow hedges produced by hedge instruments Concept (Text Block (HTML)) For Period bsac:ScheduleOfMarketAdjustmentOfCashFlowHedgesProducedByHedgeInstrumentsExplanatory
461 Schedule of cash flow hedges amount reclassified from other comprehensive income Concept (Text Block (HTML)) For Period bsac:ScheduleOfCashFlowHedgesAmountReclassifiedFromOtherComprehensiveIncomeExplanatory
462 00000058 - Disclosure - LOANS AND ACCOUNT RECEIVABLE AT AMORTISED COST (Tables) Network

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467 Consumer Loans [Member] Member ifrs-full:ConsumerLoansMember
468 Residential Mortgage Loans [Member] Member bsac:ResidentialMortgageLoansMember
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470 Schedule of loan portfolio composition Concept (Text Block (HTML)) For Period bsac:ScheduleOfLoanPortfolioComposition
471 Schedule of gross carrying amount expected credit loss Concept (Text Block (HTML)) For Period bsac:ScheduleOfGrossCarryingAmountExpectedCreditLoss
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475 Schedule of gross carrying amount Concept (Text Block (HTML)) For Period bsac:ScheduleOfGrossCarryingAmount
476 00000060 - Disclosure - LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS and INTERBANK LOANS (under IAS 39) (Tables) Network

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480 Schedule of interbank loans Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfLoansAndAdvancesToBanksExplanatory
481 Schedule of provisions and impairment Concept (Text Block (HTML)) For Period bsac:ScheduleOfProvisionsAndImpairmentExplanatory
482 Schedule of portfolio of loans Concept (Text Block (HTML)) For Period bsac:DetailedInformationAboutCompositionOfPortfolioOfLoansExplanatory
483 Schedule of impaired portfolio Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutImpairedPortfolioExplanatory
484 Schedule of allowances for loans losses Concept (Text Block (HTML)) For Period bsac:DetailedInformationAboutMovementsInAllowancesForLoansLossesExplanatory
485 Schedule of recoveries by type of loan Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutRecoveriesByTypeOfLoanExplanatory
486 Schedule of allowances established on customer and interbank loans Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutAllowancesEstablishedOnCustomerAndInterbankLoansExplanatory
487 Schedule of allowance for loan losses associated with impaired and non impaired Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedExplanatory
488 Schedule for transactions of sale or transfer of loan portfolio Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransfersOfFinancialAssetsExplanatory
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492 Schedule of debt instrument Concept (Text Block (HTML)) For Period bsac:ScheduleOfDebtInstrumentTableExplanatory
493 Schedule of changes in the fair value and the corresponding ECL Concept (Text Block (HTML)) For Period bsac:ScheduleOfChangesInFairValueAndCorrespondingExplanatory
494 Schedule of available for sale investments Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutAvailableForSaleInvestmentsExplanatory
495 Schedule of gross profits and losses realized on the sale of available for sale investments Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutGrossProfitsAndLossesRealizedOnSaleOfAvailableForSaleInvestmentsExplanatory
496 Schedule of available for sale investments cumulative unrealized profit and loss Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutAvailableForSaleInvestmentsCumulativeUnrealizedProfitAndLossExplanatory
497 00000062 - Disclosure - INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Tables) Network

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 implied:Table
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500 Schedule of investments in associates and other companies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInvestmentEntitiesExplanatory
501 Schedule of fair value of these equity investments Concept (Text Block (HTML)) For Period bsac:ScheduleOfFairValueOfTheseEquityInvestmentExplanatory
502 Schedule of financial information of associates Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutFinancialInformationOfAssociatesExplanatory
503 Schedule of investments in other companies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInUnconsolidatedStructuredEntitiesExplanatory
504 00000063 - Disclosure - INTANGIBLE ASSETS (Tables) Network

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505 Implied Table Table

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506 Intangible Assets Abstract bsac:IntangibleAssetsAbstract
507 Schedule of composition of intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsMaterialToEntityExplanatory
508 Schedule of changes in the value of intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
509 00000064 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT (Tables) Network

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 http://santander.cl/role/PropertyPlantAndEquipmentTables
510 Implied Table Table

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511 Property, plant and equipment [abstract] Abstract ifrs-full:PropertyPlantAndEquipmentAbstract
512 Schedule of composition of property, plant, and equipment Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutCompositionOfPropertyPlantAndEquipmentExplanatory
513 Schedule of changes in the value of property, plant, and equipment Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutChangesInValueOfPropertyPlantAndEquipmentExplanatory
514 Schedule of operational leases - lessor Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutOperationalLeasesLessorExplanatory
515 Schedule of operational leases - lessee Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutOperationalLeasesLesseeExplanatory
516 00000065 - Disclosure - CURRENT AND DEFERRED TAXES (Tables) Network

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 http://santander.cl/role/CurrentAndDeferredTaxesTables
517 Implied Table Table

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519 Schedule of taxes payable (recoverable) Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutTaxesPayableRecoverableExplanatory
520 Schedule of effect on income Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutEffectOfTaxExpenseOnIncomeExplanatory
521 Schedule of effective tax rate reconciliation Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutEffectiveTaxRateReconciliationExplanatory
522 Schedule of effect of deferred taxes on comprehensive income Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutEffectOfDeferredTaxesOnComprehensiveIncomeExplanatory
523 Schedule of effect of deferred taxes on income Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutEffectOfDeferredTaxesOnIncomeExplanatory
524 Schedule of deferred tax assets and liabilities Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutDeferredTaxAssetsAndLiabilitiesExplanatory
525 00000066 - Disclosure - OTHER ASSETS (Tables) Network

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 http://santander.cl/role/OtherAssetsTables
526 Implied Table Table

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527 Other Assets Abstract bsac:OtherAssetsDisclosureAbstract
528 Schedule of other assets Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutOtherAssetsTableExplanatory
529 00000067 - Disclosure - TIME DEPOSITS AND OTHER TIME LIABILITIES (Tables) Network

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 http://santander.cl/role/TimeDepositsAndOtherTimeLiabilitiesTables
530 Implied Table Table

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532 Scheduel of time deposits and other time liabilities Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutTimeDepositsAndOtherTimeLiabilitiesExplanatory
533 00000068 - Disclosure - INTERBANK BORROWINGS (Tables) Network

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 http://santander.cl/role/InterbankBorrowingsTables
534 Disclosure of financial liabilities [table] Table

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535 Legal Entity [Axis] Axis dei:LegalEntityAxis
536 Entity [Domain] Member dei:EntityDomain
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538 Loans From Foreign Financial Institutions [Member] Member bsac:LoansFromForeignFinancialInstitutionsMember
539 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
540 Schedule of Interbank borrowings Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
541 Schedule of outstanding amounts owed to the Central Bank of Chile Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutOutstandingAmountsOwedToCentralBankOfChileExplanatory
542 Schedule of loans from financial institutions Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutInterbankBorrowingsObligationsMaturities
543 00000069 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Tables) Network

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 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesTables
544 Implied Table Table

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547 Schedule of debts classified Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutDebtsClassifiedExplanatory
548 Schedule of mortgage finance bonds Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutMortgageFinanceBondsExplanatory
549 Schedule of senior bonds by currency Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutSeniorBondsByCurrencyExplanatory
550 Schedule of placement of senior bonds Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutPlacementOfSeniorBondsExplanatory
551 Schedule of partial repurchase Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutPartialRepurchaseExplanatory
552 Schedule of bank issued bonds Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutBankIssuedBondsExplanatory
553 Schedule of bank performed a partial repurchase Concept (Text Block (HTML)) For Period bsac:DisclosureOfBankPerformedPartialRepurchaseExplanatory
554 Schedule of maturities of senior bonds Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutMaturitiesOfSeniorBondsExplanatory
555 Schedule of mortgage bonds per currency Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutMortgageBondsPerCurrencyExplanatory
556 Schedule of maturities of mortgage bond Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutMaturitiesOfMortgageBondExplanatory
557 Schedule of subordinated bonds Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutSubordinatedBondsExplanatory
558 Schedule of maturities of subordinated bonds Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutMaturitiesOfSubordinatedBondsExplanatory
559 Schedule of other financial liabilities Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutOtherFinancialLiabilitiesExplanatory
560 00000070 - Disclosure - MATURITY OF FINANCIAL ASSETS AND LIABILITIES (Tables) Network

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561 Implied Table Table

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563 Schedule of assets and liabilities maturities Concept (Text Block (HTML)) For Period bsac:DisclosureOfFinancialAssetsAndFinancialLiabilitiesMaturitiesExplanatory
564 00000071 - Disclosure - PROVISIONS AND CONTINGENT PROVISIONS (Tables) Network

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565 Implied Table Table

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567 Schedule of composition provisions Concept (Text Block (HTML)) For Period bsac:DisclosureOfCompositionProvisionsExplanatory
568 Schedule of activity regarding provision Concept (Text Block (HTML)) For Period bsac:DisclosureOfActivityRegardingProvisionsExplanatory
569 Schedule of provisions for personnel salaries and expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutKeyManagementPersonnelExplanatory
570 Schedule of provisions for contingent loan risk Concept (Text Block (HTML)) For Period bsac:ScheduleOfProvisionsForContingentLoanRisk
571 00000072 - Disclosure - OTHER LIABILITIES (Tables) Network

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 http://santander.cl/role/OtherLiabilitiesTables
572 Implied Table Table

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 implied:Table
573 Other Liabilities Abstract bsac:OtherLiabilitiesDislcosureAbstract
574 Schedule of other liabilities Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutOtherLiabilitiesExplanatory
575 00000073 - Disclosure - CONTINGENCIES AND COMMITMENTS (Tables) Network

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 http://santander.cl/role/ContingenciesAndCommitmentsTables
576 Implied Table Table

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578 Schedule of contractual obligations Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutContractualObligationsExplanatory
579 Schedule of held securities Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutHeldSecuritiesExplanatory
580 00000074 - Disclosure - EQUITY (Tables) Network

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 http://santander.cl/role/EquityTables
581 Implied Table Table

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 implied:Table
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583 Schedule of activity shares Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutActivitySharesExplanatory
584 Schedule of shareholder composition Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutShareholderCompositionExplanatory
585 Schedule of basic and diluted earnings per share Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutIncomeAndDataUsedInEarningsPerShareExplanatory
586 Schedule of other comprehensive income from available for sale investments and cash flow hedges Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutOtherComprehensiveIncomeFromAvailableForSaleInvestmentsAndCashFlowHedgesExplanatory
587 00000075 - Disclosure - NON-CONTROLLING INTEREST (Tables) Network

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 http://santander.cl/role/Non-controllingInterestTables
588 Implied Table Table

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 implied:Table
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590 Schedule of non-controlling interest included in the equity and the income Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutNonControllingInterestIncludedInEquityAndIncomeExplanatory
591 Schedule of financial information of the subsidiaries included in the consolidation of the Bank that possess non-controlling interests Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutFinancialInformationAttributableToNoncontrollingInterestsExplanatory
592 00000076 - Disclosure - INTEREST INCOME (Tables) Network

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 http://santander.cl/role/InterestIncomeTables
593 Implied Table Table

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594 Interest Income Abstract bsac:InterestIncomeAbstract
595 Schedule of income from interest Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutIncomeFromInterestExplanatory
596 Schedule of interest expense Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutInterestExpenseExplanatory
597 Schedule of income and expense from interest Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutIncomeAndExpenseFromInterestExplanatory
598 00000077 - Disclosure - FEES AND COMMISSIONS (Tables) Network

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*

 http://santander.cl/role/FeesAndCommissionsTables
599 Implied Table Table

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 implied:Table
600 Fees And Commissions Abstract bsac:FeesAndCommissionsDislcosureAbstract
601 Schedule of fees and commission Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutFeesAndCommissionExplanatory
602 Schedule of income and expences Concept (Text Block (HTML)) For Period bsac:ScheduleOfIncomeAndExpences
603 00000078 - Disclosure - NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS (Tables) Network

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 http://santander.cl/role/NetIncomeExpenseFromFinancialOperationsTables
604 Implied Table Table

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605 Net Income Expense From Financial Operations Abstract bsac:NetIncomeExpenseFromFinancialOperationsAbstract
606 Schedule of income (expense) from financial operations Concept (Text Block (HTML)) For Period bsac:DisclosureOfIncomeExpenseFromFinancialOperationsExplanatory
607 00000079 - Disclosure - NET FOREIGN EXCHANGE GAIN (LOSS) (Tables) Network

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*

 http://santander.cl/role/NetForeignExchangeGainLossTables
608 Implied Table Table

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 implied:Table
609 Net Foreign Exchange Gain Abstract bsac:NetForeignExchangeGainLoss1Abstract
610 Schedule of net foreign exchange income Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutNetForeignExchangeIncomeExplanatory
611 00000080 - Disclosure - EXPECTED CREDIT LOSSESS ALLOWANCE (Tables) Network

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*

 http://santander.cl/role/ExpectedCreditLossessAllowanceTables
612 Implied Table Table

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 implied:Table
613 Expected Credit Lossess Allowance Abstract bsac:ExpectedCreditLossessAllowanceAbstract
614 Schedule of expected credit losses Concept (Text Block (HTML)) For Period bsac:ScheduleOfExpectedCreditLosses
615 Schedule of significant loans Concept (Text Block (HTML)) For Period bsac:ScheduleOfSignificantLoans
616 00000081 - Disclosure - PERSONNEL SALARIES AND EXPENSES (Tables) Network

*

*

 http://santander.cl/role/PersonnelSalariesAndExpensesTables
617 Implied Table Table

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 implied:Table
618 Personnel Salaries And Expenses Abstract bsac:PersonnelSalariesAndExpensesAbstract
619 Schedule of personnel expenses Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutPersonnelExpensesExplanatory
620 00000082 - Disclosure - ADMINISTRATIVE EXPENSES (Tables) Network

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 http://santander.cl/role/AdministrativeExpensesTables
621 Implied Table Table

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 implied:Table
622 Administrative Expenses Abstract bsac:AdministrativeExpensesAbstract
623 Schedule of administrative expenses Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutAdministrativeExpensesExplanatory
624 00000083 - Disclosure - DEPRECIATION, AMORTIZATION, AND IMPAIRMENT (Tables) Network

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 http://santander.cl/role/DepreciationAmortizationAndImpairmentTables
625 Implied Table Table

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627 Schedule of depreciation, amortization and impairment charges Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutDepreciationAmortizationAndImpairmentChargesExplanatory
628 00000084 - Disclosure - OTHER OPERATING INCOME AND EXPENSES (Tables) Network

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 http://santander.cl/role/OtherOperatingIncomeAndExpensesTables
629 Implied Table Table

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630 Other Operating Income And Expenses Abstract bsac:OtherOperatingIncomeAndExpensesAbstract
631 Schedule of other operating income Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutOtherOperatingIncomeExplanatory
632 Schedule of other operating expenses Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutOtherOperatingExpensesExplanatory
633 00000085 - Disclosure - TRANSACTIONS WITH RELATED PARTIES (Tables) Network

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 http://santander.cl/role/TransactionsWithRelatedPartiesTables
634 Implied Table Table

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636 Schedule of loans and accounts receivable as well as contingent loans that correspond to related entities Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutLoansAndAccountsReceivableAsWellAsContingentLoansThatCorrespondToRelatedEntitiesExplanatory
637 Schedule of loan activity to related parties Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutLoanActivityToRelatedPartiesExplanatory
638 Schedule of assets and liabilities with related parties Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutOtherAssetsAndLiabilitiesWithRelatedPartiesExplanatory
639 Schedule of income (expense) recorded due to transactions with related parties Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutIncomeAndExpensesInRelatedPartyExplanatory
640 Schedule of payments to Board members and key management personnel Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutPaymentsToBoardMembersAndKeyManagementPersonnelExplanatory
641 Schedule of composition of key personnel Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutCompositionOfKeyPersonnelExplanatory
642 00000086 - Disclosure - PENSION PLANS (Tables) Network

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 http://santander.cl/role/PensionPlansTables
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645 Schedule of actuarial hypothesis assumptions Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutActuarialHypothesisAssumptionsExplanatory
646 Schedule of post-employment benefits Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutPostemploymentBenefitsExplanatory
647 Schedule of cash flow for post-employment benefits Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutCashFlowForPostemploymentBenefitsExplanatory
648 Schedule of plan expected profit Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutPlanExpectedProfitExplanatory
649 Schedule of plan associated expenses Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutPlanAssociatedExpensesExplanatory
650 00000087 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Tables) Network

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 http://santander.cl/role/FairValueOfFinancialAssetsAndLiabilitiesTables
651 Implied Table Table

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652 Fair Value Of Financial Assets And Liabilities Abstract bsac:FairValueOfFinancialAssetsAndLiabilitiesAbstract
653 Schedule of financial assets and liabilities Concept (Text Block (HTML)) For Period bsac:DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesExplanatory
654 Schedule of assets and liabilities on recurrent basis Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutRecurringFairValueMeasurementExplanatory
655 Schedule of assets or liabilities which are not measured at fair value Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutNotMeasuredAtFairValueMeasurementExplanatory
656 Schedule of financial instruments classified as Level 3 Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory
657 Schedule of assets and liabilities measured at fair value on a recurrent basis using unobserved significant entries (Level 3) Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesExplanatory
658 Schedule of financial instruments subject to compensation Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutFinancialInstrumentsSubjectToCompensationExplanatory
659 Schedule of credit exposure in its financial derivative operations Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationAboutFinancialDerivativeCollateralContractsExplanatory
660 00000088 - Disclosure - RISK MANAGEMENT (Tables) Network

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 http://santander.cl/role/RiskManagementTables
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663 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
664 Consumer Loans [Member] Member ifrs-full:ConsumerLoansMember
665 Commerical Loans [Member] Member bsac:CommericalLoansMember
666 Residential Mortgage Loans [Member] Member bsac:ResidentialMortgageLoansMember
667 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
668 Risks [member] Member ifrs-full:TypesOfRisksMember
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670 Schedule of provision matrix Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfProvisionMatrixExplanatory
671 Schedule of quality assets and its related provision Concept (Text Block (HTML)) For Period ifrs-full:ExplanationOfCreditRiskManagementPracticesAndHowTheyRelateToRecognitionAndMeasurementOfExpectedCreditLossesExplanatory
672 Schedule of modified loans Concept (Text Block (HTML)) For Period bsac:ScheduleOfModifiedLoans
673 Schedule of mortage and other loan Concept (Text Block (HTML)) For Period bsac:ScheduleOfMortageAndOtherLoan
674 Schedule of risk concentration. Concept (Text Block (HTML)) For Period bsac:ScheduleOfRiskConcentration.
675 Schedule of macro economical forward Concept (Text Block (HTML)) For Period bsac:ScheduleOfMacroEconomicalForward
676 Schedule of probabilities Concept (Text Block (HTML)) For Period bsac:ScheduleOfProbabilities
677 Schedule of allowance sensibility Concept (Text Block (HTML)) For Period bsac:ScheduleOfAllowanceSensibility
678 Schedule of financial assets and associated collateral Concept (Text Block (HTML)) For Period bsac:ScheduleOfFinancialAssetsAndAssociatedCollateral
679 Schedule of portfolio Concept (Text Block (HTML)) For Period bsac:ScheduleOfPortfolio
680 Schedule of financial assets and off-balance sheet commitments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCreditRiskExposureExplanatory
681 Schedule of fair value of derivative instruments Concept (Text Block (HTML)) For Period bsac:DisclosureOfDetailedInformationCreditRiskExposureExplanatory
682 Schedule of security interests, collateral, or credit improvements Concept (Text Block (HTML)) For Period ifrs-full:InformationAboutCollateralHeldAsSecurityAndOtherCreditEnhancementsForCreditimpairedFinancialAssetsExplanatory
683 Schedule of liquidity portfolio Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfManagingLiquidityRisk
684 Schedule of exposure to liquidity risk Concept (Text Block (HTML)) For Period bsac:DescriptionOfDetailedInformationManagingLiquidityRiskExplanatory
685 Schedule of breakdown by maturity Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialLiabilitiesExplanatory
686 Schedule of high, low and average levels Concept (Text Block (HTML)) For Period ifrs-full:SensitivityAnalysisForEachTypeOfMarketRisk
687 Schedule of market risk Concept (Text Block (HTML)) For Period bsac:DisclosureOfSensitivityAnalysisExplanatory
688 Schedule of levels of basic capital and effective net equity Concept (Text Block (HTML)) For Period bsac:DisclosureOfCapitalRiskExplanatory
689 00000089 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) Network

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*

 http://santander.cl/role/SummaryOfSignificantAccountingPoliciesDetails
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*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
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693 Santander Corredora de Seguros Limitada [Member] Member bsac:SantanderCorredoradeSegurosLimitadaMember
694 Santander Corredores de Bolsa Limitada [Member] Member bsac:SantanderCorredoresdeBolsaLimitadaMember
695 Santander Agente de Valores Limitada [Member] Member bsac:SantanderAgentedeValoresLimitadaMember
696 Santander S.A. Sociedad Securitizadora [Member] Member bsac:SantanderSASociedadSecuritizadoraMember
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702 indirect interest Owned Concept (Percent) For Period bsac:ProportionOfindirectOwnershipinterestinSubsidiary
703 Total interest Owned Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
704 00000090 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1) Network

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 http://santander.cl/role/SummaryOfSignificantAccountingPoliciesDetails1
705 Disclosure of associates [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
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707 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
708 Redbanc S.A. [Member] Member bsac:RedbancSAMember
709 Transbank S.A. [Member] Member bsac:TransbankSAMember
710 Centro de Compensacion Automatizado S.A. [Member] Member bsac:CentrodeCompensacionAutomatizadoMember
711 Sociedad Interbancaria de Deposito de Valores S.A. [Member] Member bsac:SociedadinterbancariadeDepositodeValoresSAMember
712 Camara de Compensacion de Alto Valor S.A. [Member] Member bsac:CamaraCompensaciondeAltoValorSAMember
713 Administrador Financiero del Transantiago S.A. [Member] Member bsac:AdministradorFinancierodelTransantiagoSAMember
714 Sociedad Nexus S.A. [Member] Member bsac:SociedadNexusSAMember
715 Servicios de Infraestructura de Mercado OTC S.A. [Member] Member bsac:ServiciosdeinfraestructuradeMercadoOTCSAMember
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719 Place of incorporation and operation Concept (Text/String) For Period ifrs-full:PrincipalPlaceOfBusinessOfAssociate
720 Percentage of ownership share Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
721 00000091 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) Network

*

*

 http://santander.cl/role/SummaryOfSignificantAccountingPoliciesDetails2
722 Disclosure of detailed information about property, plant and equipment [table] Table

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 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
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725 Land [Member] Member ifrs-full:LandMember
726 Paintings And Works Of Art [Member] Member bsac:PaintingsAndWorksOfArtMember
727 Carpets And Curtains [Member] Member bsac:CarpetsAndCurtainsMember
728 Computers And Hardware [Member] Member ifrs-full:ComputerEquipmentMember
729 Vehicles [Member] Member ifrs-full:VehiclesMember
730 IT Systems And Software [Member] Member bsac:ITSystemsAndSoftwareMember
731 ATMs [Member] Member bsac:ATMsMember
732 Other Machines And Equipment [Member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
733 Office Furniture [Member] Member ifrs-full:FixturesAndFittingsMember
734 Telephone And Communication Systems [Member] Member ifrs-full:CommunicationAndNetworkEquipmentMember
735 Security Systems [Member] Member ifrs-full:NetworkInfrastructureMember
736 Rights Over Telephone Lines [Member] Member bsac:RightsOverTelephoneLinesMember
737 Air Conditioning Systems [Member] Member bsac:AirConditioningSystemsMember
738 Other Installations [Member] Member bsac:OtherinstallationsMember
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742 00000092 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) Network

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 http://santander.cl/role/SummaryOfSignificantAccountingPoliciesDetails3
743 Disclosure of financial assets [table] Table

*

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 ifrs-full:DisclosureOfFinancialAssetsTable
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745 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
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747 Other Transactions Without Collateral [Member] Member bsac:OtherTransactionsWithoutCollateralMember
748 Commercial Loans With Collateral [Member] Member bsac:CommercialLoansWithCollateralMember
749 Mortgage Loans [Member] Member bsac:MortgageLoansMember
750 Consumer Leasing [Member] Member bsac:ConsumerLeasingMember
751 Other Non-Mortgage Leasing Transactions [Member] Member bsac:OtherNonMortgageLeasingTransactionsMember
752 Mortgage Leasing (Household And Business) [Member] Member bsac:MortgageLeasingHouseholdAndBusinessMember
753 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
754 Term Concept (xbrli:durationItemType) For Period bsac:MaximumCollectionPeriod
755 00000093 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) Network

*

*

 http://santander.cl/role/SummaryOfSignificantAccountingPoliciesDetails4
756 Disclosure of financial assets [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsTable
757 Classes of financial assets [Axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
758 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
759 Consumer Loans With Or Without Collateral [Member] Member bsac:ConsumerLoansWithOrWithoutCollateralMember
760 Other Transactions Without Collateral [Member] Member bsac:OtherTransactionsWithoutCollateralMember
761 Commercial Loans With Collateral [Member] Member bsac:CommercialLoansWithCollateralMember
762 Mortgage Loans [Member] Member bsac:MortgageLoansMember
763 Consumer Leasing [Member] Member bsac:ConsumerLeasingMember
764 Other Non-Mortgage Leasing Transactions [Member] Member bsac:OtherNonMortgageLeasingTransactionsMember
765 Mortgage Leasing (Household And Business) [Member] Member bsac:MortgageLeasingHouseholdAndBusinessMember
766 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
767 Term Concept (xbrli:durationItemType) For Period bsac:MaximumCollectionPeriod1
768 00000094 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) Network

*

*

 http://santander.cl/role/SummaryOfSignificantAccountingPoliciesDetailsNarrative
769 Disclosure of associates [table] Table

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*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
770 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
771 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
772 Banco Santander Spain [Member] Member bsac:BancoSantanderSpainMember
773 Legal Entity [Axis] Axis dei:LegalEntityAxis
774 Entity [Domain] Member dei:EntityDomain
775 Banco Santander-Chile [Member] Member bsac:BancoSantanderChileMember
776 Teatinos Siglo XXi inversiones Ltda [Member] Member bsac:TeatinosSigloXXiinversionesLtdaMember
777 Santander-Chile Bank [Member] Member bsac:SantanderChileBankMember
778 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
779 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
780 Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor S.A. [Member] Member bsac:SociedadOperadoradelaCamaradeCompensaciondePagosDeAltoValorSAMember
781 Servicios de Infraestructura de Mercado OTC S.A. [Member] Member bsac:ServiciosdeinfraestructuradeMercadoOTCSAMember
782 Transbank S.A. [Member] Member bsac:TransbankSAMember
783 Currency [Axis] Axis srt:CurrencyAxis
784 All Currencies [Domain] Member currency:AllCurrenciesDomain
785 USD [Member] Member currency:USD
786 Unidad De Fomento (funds code) [Member] Member currency:CLF
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788 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
789 Foreign exchange rate Concept (Decimal) As Of ifrs-full:ClosingForeignExchangeRate
790 Foreign exchange inflation rate Concept (Percent) As Of bsac:ClosingForeignExchangeInflationRate
791 Increase (decrease) in bank shares percenatge Concept (Percent) As Of bsac:IncreaseDecreaseinBankSharesPercenatge
792 Payments of shares Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
793 Subscribed and paid shares Concept (Monetary) For Period Debit bsac:ValueOfNumberOfSharesIssuedAndFullyPaid
794 Credit valuation adjustment Concept (Monetary) For Period Credit bsac:CreditValuationAdjustment
795 Debit valuation adjustment Concept (Monetary) For Period Debit bsac:DebitValuationAdjustment
796 Minimum mandatory dividends distributed Concept (Percent) As Of bsac:MinimumMandatoryDividendsDistributed
797 00000096 - Disclosure - ACCOUNTING CHANGES (Details 1) Network

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*

 http://santander.cl/role/AccountingChangesDetails1
798 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
799 Classes of financial assets [Axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
800 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
801 Amortised Cost [Member] Member ifrs-full:FinancialAssetsAtAmortisedCostMember
802 Assets and liabilities [Axis] Axis ifrs-full:AssetsAndLiabilitiesAxis
803 Assets and liabilities [member] Member ifrs-full:AssetsAndLiabilitiesMember
804 Cash And Deposit In Banks [Member] Member bsac:CashAndDepositInBanksMember
805 Interbank Loans Net [Member] Member bsac:InterbankLoansNetMember
806 Loans And Accounts Receivable From Customers [Member] Member ifrs-full:LoansAndReceivablesCategoryMember
807 Available For Sale Investments [Member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
808 Investment In Associate And Other Companies Bladex [Member] Member bsac:InvestmentInAssociateAndOtherCompaniesMember
809 Investment In Associate And Other Companies Stock Exchange [Member] Member bsac:InvestmentInAssociateAndOtherCompanies1Member
810 Trading Investment [Member] Member ifrs-full:TradingSecuritiesMember
811 Derivatives Contracts [Member] Member ifrs-full:DerivativesMember
812 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
813 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
814 Fair Value Through Other Comprehensive Income [Member] Member ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember
815 Financial assets at fair value through profit or loss, category [Member] Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
816 Effect of overlay approach reclassification [axis] Axis ifrs-full:EffectOfOverlayApproachReclassificationAxis
817 In accordance with IFRS 9 [member] Member ifrs-full:InAccordanceWithIFRS9Member
818 IAS 39 [Member] Member bsac:InAccordanceWithIAS39Member
819 Reclassification [Member] Member ifrs-full:EffectOfOverlayApproachReclassificationMember
820 Remeasurement [Member] Member bsac:EffectOfOverlayApproachRemeasurementMember
821 IFRS 9 [Member] Member bsac:InAccordanceIFRS9Member
822 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
823 Opening balance under IAS 39 Concept (Monetary) As Of Debit bsac:AccountingChanges
824 Addition: from amortised cost (net of allowance) Concept (Monetary) For Period ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
825 Addition: from interbank loans Concept (Monetary) For Period Debit bsac:AdditionFromInterbankLoans
826 Remeasurement: ECL Allowance Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInAllowanceAccountForCreditLossesOfFinancialAssets
827 Remeasurement: from cost to FV Concept (Monetary) For Period Credit bsac:RemeasurementFromCostToFairValue
828 Subtraction to FVOCI (net of allowance) Concept (Monetary) For Period ifrs-full:ReversalAllowanceAccountForCreditLossesOfFinancialAssets
829 Closing balance under IFRS 9 Concept (Monetary) As Of Debit bsac:AccountingChanges
830 Total financial assets measured at amortised cost Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtAmortisedCost
831 Total financial assets measured at FVOCI Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome
832 Total financial assets measured at FVTPL Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLoss
833 00000097 - Disclosure - ACCOUNTING CHANGES (Details 2) Network

*

*

 http://santander.cl/role/AccountingChangesDetails2
834 Disclosure of effect of overlay approach reclassification on profit or loss [table] Table

*

*

 ifrs-full:DisclosureOfEffectOfOverlayApproachReclassificationOnProfitOrLossTable
835 Effect of overlay approach reclassification [axis] Axis ifrs-full:EffectOfOverlayApproachReclassificationAxis
836 In accordance with IFRS 9 [member] Member ifrs-full:InAccordanceWithIFRS9Member
837 IAS 39 [Member] Member bsac:InAccordanceWithIAS39Member
838 Reclassification [Member] Member ifrs-full:EffectOfOverlayApproachReclassificationMember
839 Remeasurement [Member] Member bsac:EffectOfOverlayApproachRemeasurementMember
840 IFRS 9 [Member] Member bsac:InAccordanceIFRS9Member
841 Classes of financial assets [Axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
842 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
843 Amortised Cost [Member] Member ifrs-full:FinancialAssetsAtAmortisedCostMember
844 Available For Sale Investments [Member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
845 Assets and liabilities [Axis] Axis ifrs-full:AssetsAndLiabilitiesAxis
846 Assets and liabilities [member] Member ifrs-full:AssetsAndLiabilitiesMember
847 Interbank Loans Net [Member] Member bsac:InterbankLoansNetMember
848 Loans And Accounts Receivable From Customers [Member] Member ifrs-full:LoansAndReceivablesCategoryMember
849 Investment Securities [Member] Member bsac:InvestmentSecuritiesMember
850 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
851 Other provisions [member] Member ifrs-full:OtherProvisionsMember
852 Other Credit Related commitments [Member] Member ifrs-full:ProvisionForCreditCommitmentsMember
853 Classes of contingent liabilities [axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
854 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
855 Contingent liabilities [Member] Member bsac:ContingentLiabilities1Member
856 Loan Commitments [Member] Member ifrs-full:LoanCommitmentsMember
857 Disclosure of effect of overlay approach reclassification on profit or loss [line items] LineItems ifrs-full:DisclosureOfEffectOfOverlayApproachReclassificationOnProfitOrLossLineItems
858 Total loans and account receivable Concept (Monetary) As Of Debit ifrs-full:LoansAndReceivables
859 Total financial assets measured at FVOCI Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncome
860 Total Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
861 Total contingents Concept (Monetary) As Of Credit bsac:ContingentsLiabilitiesRegonisedLoansLossAllowance
862 Total provision for loan losses Concept (Monetary) As Of Credit bsac:ProvisionForLoanLosses
863 00000098 - Disclosure - SIGNIFICANT EVENTS (Details) Network

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*

 http://santander.cl/role/SignificantEventsDetails
864 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
865 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
866 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
867 Bonds [Member] Member bsac:Bonds1Member
868 Currency [Axis] Axis srt:CurrencyAxis
869 All Currencies [Domain] Member currency:AllCurrenciesDomain
870 AUD Member currency:AUD
871 CHF Member currency:CHF
872 EUR Member currency:EUR
873 JPY [Member] Member currency:JPY
874 USD [Member] Member currency:USD
875 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
876 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
877 AUD [Member] Member bsac:AUD1Member
878 CHF [Member] Member bsac:CHFMember
879 EUR [Member] Member bsac:EURMember
880 EUR 1 [Member] Member bsac:EUR1Member
881 JPY [Member] Member bsac:JPYMember
882 JPY 1 [Member] Member bsac:JPY1Member
883 USD [Member] Member bsac:USDMember
884 USD 1 [Member] Member bsac:USD1Member
885 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
886 Currency Concept (Text/String) For Period ifrs-full:BorrowingsOriginalCurrency
887 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
888 Term (annual) Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
889 Issuance rate (annual) Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
890 Issue date Concept (Date) For Period bsac:BorrowingsIssueDate
891 Maturity date Concept (Date) For Period bsac:BorrowingsMaturityDate
892 00000099 - Disclosure - SIGNIFICANT EVENTS (Details 1) Network

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*

 http://santander.cl/role/SignificantEventsDetails1
893 Disclosure of financial liabilities [table] Table

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*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
894 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
895 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
896 Bonds [Member] Member bsac:Bonds1Member
897 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
898 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
899 Senior Bond 1 [Member] Member bsac:SeniorBond1Member
900 Senior Bond 2 [Member] Member bsac:SeniorBond2Member
901 Senior Bond 3 [Member] Member bsac:SeniorBond3Member
902 Senior Bond 4 [Member] Member bsac:SeniorBond4Member
903 Senior Bond 5 [Member] Member bsac:SeniorBond5Member
904 Senior Bond 6 [Member] Member bsac:SeniorBond6Member
905 Senior Bond 7 [Member] Member bsac:SeniorBond7Member
906 Senior Bond 8 [Member] Member bsac:SeniorBond8Member
907 Senior Bond 9 [Member] Member bsac:SeniorBond9Member
908 Senior Bond 10 [Member] Member bsac:SeniorBond10Member
909 Senior Bond 11 [Member] Member bsac:SeniorBond11Member
910 Currency [Axis] Axis srt:CurrencyAxis
911 All Currencies [Domain] Member currency:AllCurrenciesDomain
912 Chile, Pesos Member currency:CLP
913 Unidad De Fomento (funds code) [Member] Member currency:CLF
914 USD [Member] Member currency:USD
915 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
916 Date Concept (Date) For Period bsac:BorrowingsRepurchaseDate
917 Amount Concept (Monetary) As Of Debit bsac:BorrowingsRepurchaseAmount
918 00000100 - Disclosure - SIGNIFICANT EVENTS (Details Narrative) Network

*

*

 http://santander.cl/role/SignificantEventsDetailsNarrative
919 Implied Table Table

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 implied:Table
920 Significant Events Abstract bsac:SignificantEventsAbstract
921 Net income attributable to equity holders of the Bank Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
922 Dividend per share (in pesos per share) Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
923 00000101 - Disclosure - REPORTING SEGMENTS (Details) Network

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*

 http://santander.cl/role/ReportingSegmentsDetails
924 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
925 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
926 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
927 Retail Banking [Member] Member bsac:RetailBankingMember
928 Middle Market [Member] Member bsac:MiddleMarketMember
929 Commercial Banking [Member] Member bsac:CommercialBankingMember
930 Global Corporate Banking [Member] Member bsac:GlobalCorporateBankingMember
931 Other [Member] Member bsac:OtherReportableSegmentMember
932 Total [Member] Member ifrs-full:ReportableSegmentsMember
933 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
934 Loans and accounts receivable at amortised cost Concept (Monetary) As Of Debit ifrs-full:LoansAndAdvancesToCustomers
935 Net interest income Concept (Monetary) For Period Credit ifrs-full:InterestIncomeOnFinancialAssetsDesignatedAtFairValueThroughProfitOrLoss
936 Net fee and commission income Concept (Monetary) For Period Credit ifrs-full:FeeAndCommissionIncome
937 Financial transactions, net Concept (Monetary) For Period Debit bsac:FinancialTransactionsNet
938 Expected credit losses Concept (Monetary) For Period Debit ifrs-full:ProvisionUsedOtherProvisions
939 Support expenses Concept (Monetary) For Period Debit bsac:SupportExpenses
940 Segment`s net contribution Concept (Monetary) For Period Credit bsac:NetReporatbleSegmentContribution
941 Other operating income Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
942 Other operating expenses and impairment Concept (Monetary) For Period Debit bsac:OtherOperatingExpensesAndImpairment
943 Income from investments in associates and other companies Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
944 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
945 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
946 00000102 - Disclosure - CASH AND CASH EQUIVALENTS (Details) Network

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*

 http://santander.cl/role/CashAndCashEquivalentsDetails
947 Implied Table Table

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*

 implied:Table
948 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
949 Cash and deposits in banks Abstract bsac:CashAndBankBalancesAtCentralBanksAbstract
950 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
951 Deposits at the Central Bank of Chile Concept (Monetary) As Of Debit ifrs-full:MandatoryReserveDepositsAtCentralBanks
952 Deposits in local banks Concept (Monetary) As Of Debit bsac:DepositsInDomesticBanks
953 Deposits in banks abroad Concept (Monetary) As Of Debit bsac:DepositsInforeignBanks
954 Subtotals - Cash and deposits in banks Concept (Monetary) As Of Debit ifrs-full:CashAndBankBalancesAtCentralBanks
955 Net cash items in process of collection Concept (Monetary) As Of Debit bsac:CashInProcessOfCollectionNet
956 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
957 00000103 - Disclosure - CASH AND CASH EQUIVALENTS (Details 1) Network

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*

 http://santander.cl/role/CashAndCashEquivalentsDetails1
958 Implied Table Table

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 implied:Table
959 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
960 Assets Abstract ifrs-full:AssetsAbstract
961 Documents held by other banks (documents to be cleared) Concept (Monetary) As Of Debit bsac:DocumentsHeldByOtherBanks
962 Funds receivable Concept (Monetary) As Of Debit bsac:FundsReceivable
963 Subtotal Concept (Monetary) As Of Debit ifrs-full:ItemsInCourseOfCollectionFromOtherBanks
964 Liabilities Abstract ifrs-full:LiabilitiesAbstract
965 Funds payable Concept (Monetary) As Of Credit ifrs-full:LiabilitiesDueToCentralBanks
966 Subtotal Concept (Monetary) As Of Credit ifrs-full:ItemsInCourseOfTransmissionToOtherBanks
967 Cash in process of collection, net Concept (Monetary) As Of Debit bsac:CashInProcessOfCollectionNet
968 00000104 - Disclosure - FINANCIAL ASSETS HELD FOR TRADING / TRADING INVESTMENTS (Details) Network

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*

 http://santander.cl/role/FinancialAssetsHeldForTradingTradingInvestmentsDetails
969 Disclosure of fair value measurement of assets [table] Table

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*

 ifrs-full:DisclosureOfFairValueMeasurementOfAssetsTable
970 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
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972 Chilean Central Bank And Government Securities [Member] Member bsac:ChileanCentralBankandGovernmentSecuritiesMember
973 Other Chilean Securities [Member] Member bsac:OtherChileanSecuritiesMember
974 Foreign Financial Securities [Member] Member bsac:ForeignFinancialSecuritiesMember
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978 Chilean Central Bank Bonds [Member] Member bsac:ChileanCentralBankBondsMember
979 Chilean Central Bank Notes [Member] Member bsac:ChileanCentralBankNotesMember
980 Other Chilean Central Bank And Government Securities [Member] Member bsac:OtherChileanCentralBankandGovernmentSecuritiesMember
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982 Mortgage Finance Bonds Of Chilean Financial Institutions [Member] Member bsac:MortgageFinanceBondsOfChileanFinancialInstitutionsMember
983 Chilean Financial Institution Bonds [Member] Member bsac:ChileanFinancialInstitutionBondsMember
984 Chilean Corporate Bonds [Member] Member bsac:ChileanCorporateBondsMember
985 Other Chilean Securities [Member] Member bsac:OthersChileanSecuritiesMember
986 Foreign Central Banks And Government Securities [Member] Member bsac:ForeignCentralBanksAndGovernmentSecuritiesMember
987 Other Foreign Financial Instruments [Member] Member bsac:OtherForeignFinancialInstrumentsMember
988 Funds Managed By Related Entities [Member] Member bsac:FundsManagedByRelatedEntitiesMember
989 Funds Managed By Others [Member] Member bsac:FundsManagedByOthersMember
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991 Total Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
992 00000105 - Disclosure - INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS (Details) Network

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*

 http://santander.cl/role/InvestmentsUnderResaleAgreementsAndObligationsUnderRepurchaseAgreementsDetails
993 Disclosure of fair value measurement of assets [table] Table

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*

 ifrs-full:DisclosureOfFairValueMeasurementOfAssetsTable
994 Legal Entity [Axis] Axis dei:LegalEntityAxis
995 Entity [Domain] Member dei:EntityDomain
996 Chilean Central Bank And Government Securities [Member] Member bsac:ChileanCentralBankandGovernmentSecuritiesMember
997 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
998 Assets [member] Member ifrs-full:ClassesOfAssetsMember
999 Chilean Central Bank Bonds [Member] Member bsac:ChileanCentralBankBondsMember
1000 Chilean Central Bank Notes [Member] Member bsac:ChileanCentralBankNotesMember
1001 Other Chilean Central Bank And Government Securities [Member] Member bsac:OtherChileanCentralBankandGovernmentSecuritiesMember
1002 Maturity [axis] Axis ifrs-full:MaturityAxis
1003 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1004 From 1 Day And Less Than 3 Months [Member] Member bsac:LaterThanOneDayAndNotLaterThanThreeMonthsMember
1005 More Than 3 Months To 1 Year [Member] Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanOneYearMember
1006 More Than 1 Year [Member] Member ifrs-full:LaterThanOneYearMember
1007 Disclosure of fair value measurement of assets [line items] LineItems ifrs-full:DisclosureOfFairValueMeasurementOfAssetsLineItems
1008 Total Concept (Monetary) As Of Debit ifrs-full:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed
1009 00000106 - Disclosure - INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS (Details 1) Network

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*

 http://santander.cl/role/InvestmentsUnderResaleAgreementsAndObligationsUnderRepurchaseAgreementsDetails1
1010 Disclosure of fair value measurement of assets [table] Table

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*

 ifrs-full:DisclosureOfFairValueMeasurementOfAssetsTable
1011 Legal Entity [Axis] Axis dei:LegalEntityAxis
1012 Entity [Domain] Member dei:EntityDomain
1013 Chilean Central Bank And Government Securities [Member] Member bsac:ChileanCentralBankandGovernmentSecuritiesMember
1014 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
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1016 Chilean Central Bank Bonds [Member] Member bsac:ChileanCentralBankBondsMember
1017 Chilean Central Bank Notes [Member] Member bsac:ChileanCentralBankNotesMember
1018 Other Chilean Central Bank And Government Securities [Member] Member bsac:OtherChileanCentralBankandGovernmentSecuritiesMember
1019 Time Deposits In Chilean Financial Institutions [Member] Member bsac:TimeDepositsInChileanFinancialInstitutionsMember
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1022 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1023 From 1 Day And Less Than 3 Months [Member] Member bsac:LaterThanOneDayAndNotLaterThanThreeMonthsMember
1024 More Than 3 Months To 1 Year [Member] Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanOneYearMember
1025 More Than 1 Year [Member] Member ifrs-full:LaterThanOneYearMember
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1030 Disclosure of fair value measurement of assets [line items] LineItems ifrs-full:DisclosureOfFairValueMeasurementOfAssetsLineItems
1031 Total Concept (Monetary) As Of Credit ifrs-full:RepurchaseAgreementsAndCashCollateralOnSecuritiesLent
1032 00000107 - Disclosure - INVESTMENTS UNDER RESALE AGREEMENTS AND OBLIGATIONS UNDER REPURCHASE AGREEMENTS (Details 2) Network

*

*

 http://santander.cl/role/InvestmentsUnderResaleAgreementsAndObligationsUnderRepurchaseAgreementsDetails2
1033 Disclosure of fair value measurement of assets [table] Table

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*

 ifrs-full:DisclosureOfFairValueMeasurementOfAssetsTable
1034 Legal Entity [Axis] Axis dei:LegalEntityAxis
1035 Entity [Domain] Member dei:EntityDomain
1036 Chilean Central Bank And Government Securities [Member] Member bsac:ChileanCentralBankandGovernmentSecuritiesMember
1037 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1038 Assets [member] Member ifrs-full:ClassesOfAssetsMember
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1040 Chilean Central Bank Notes [Member] Member bsac:ChileanCentralBankNotesMember
1041 Other Chilean Central Bank And Government Securities [Member] Member bsac:OtherChileanCentralBankandGovernmentSecuritiesMember
1042 Time Deposits In Chilean Financial Institutions [Member] Member bsac:TimeDepositsInChileanFinancialInstitutionsMember
1043 Securities From Government Or Foreign Central Banks [Member] Member bsac:SecuritiesFromGovemmentOrForeignCentralBanksMember
1044 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
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1047 Trading Portfolio [Member] Member bsac:TradingPortfolioMember
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1050 Other Chilean Securities [Member] Member bsac:OtherChileanSecuritiesMember
1051 Other Foreign Chilean Securities [Member] Member bsac:OtherForeignChileanSecuritiesMember
1052 Disclosure of fair value measurement of assets [line items] LineItems ifrs-full:DisclosureOfFairValueMeasurementOfAssetsLineItems
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1054 00000108 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details) Network

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*

 http://santander.cl/role/DerivativeFinancialInstrumentsAndHedgeAccountingDetails
1055 Disclosure of detailed information about hedges [table] Table

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*

 ifrs-full:DisclosureOfHedgeAccountingTable
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1079 00000109 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 1) Network

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*

 http://santander.cl/role/DerivativeFinancialInstrumentsAndHedgeAccountingDetails1
1080 Disclosure of detailed information about hedges [table] Table

*

*

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1115 00000110 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 2) Network

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 http://santander.cl/role/DerivativeFinancialInstrumentsAndHedgeAccountingDetails2
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1151 00000111 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 3) Network

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 http://santander.cl/role/DerivativeFinancialInstrumentsAndHedgeAccountingDetails3
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*

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1177 00000112 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 4) Network

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 http://santander.cl/role/DerivativeFinancialInstrumentsAndHedgeAccountingDetails4
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1203 00000113 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 5) Network

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 http://santander.cl/role/DerivativeFinancialInstrumentsAndHedgeAccountingDetails5
1204 Disclosure of detailed information about hedges [table] Table

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1219 00000114 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details 6) Network

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 http://santander.cl/role/DerivativeFinancialInstrumentsAndHedgeAccountingDetails6
1220 Disclosure of detailed information about hedges [table] Table

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1230 00000115 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGE ACCOUNTING (Details Narrative) Network

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 http://santander.cl/role/DerivativeFinancialInstrumentsAndHedgeAccountingDetailsNarrative
1231 Implied Table Table

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1234 00000129 - Disclosure - LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS and INTERBANK LOANS (under IAS 39) (Details 8) Network

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 http://santander.cl/role/LoansAndAccountsReceivableFromCustomersAndInterbankLoansUnderIas39Details8
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1253 00000130 - Disclosure - LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS and INTERBANK LOANS (under IAS 39) (Details 9) Network

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 http://santander.cl/role/LoansAndAccountsReceivableFromCustomersAndInterbankLoansUnderIas39Details9
1254 Disclosure of financial assets [table] Table

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1262 00000131 - Disclosure - LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS and INTERBANK LOANS (under IAS 39) (Details 10) Network

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 http://santander.cl/role/LoansAndAccountsReceivableFromCustomersAndInterbankLoansUnderIas39Details10
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1270 00000134 - Disclosure - DEBT INSTRUMENTS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME (Details) Network

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 http://santander.cl/role/DebtInstrumentsAtFairValueThroughOtherComprehensiveIncomeDetails
1271 Disclosure of financial assets [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsTable
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1292 00000136 - Disclosure - DEBT INSTRUMENTS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME (Details 2) Network

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 http://santander.cl/role/DebtInstrumentsAtFairValueThroughOtherComprehensiveIncomeDetails2
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1299 00000137 - Disclosure - DEBT INSTRUMENTS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME (Details 3) Network

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 http://santander.cl/role/DebtInstrumentsAtFairValueThroughOtherComprehensiveIncomeDetails3
1300 Disclosure of financial assets [table] Table

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1320 00000138 - Disclosure - DEBT INSTRUMENTS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME (Details 4) Network

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*

 http://santander.cl/role/DebtInstrumentsAtFairValueThroughOtherComprehensiveIncomeDetails4
1321 Disclosure of financial assets [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsTable
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1350 00000139 - Disclosure - DEBT INSTRUMENTS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME (Details Narrative) Network

*

*

 http://santander.cl/role/DebtInstrumentsAtFairValueThroughOtherComprehensiveIncomeDetailsNarrative
1351 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
1352 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1353 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1354 Comder Contraparte Central S.A. [Member] Member bsac:ComderContraparteCentralSAMember
1355 London Clearing House (LCH) [Member] Member bsac:LondonClearingHouseMember
1356 Legal Entity [Axis] Axis dei:LegalEntityAxis
1357 Entity [Domain] Member dei:EntityDomain
1358 Chilean Central Bank And Government Securities [Member] Member bsac:ChileanCentralBankandGovernmentSecuritiesMember
1359 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1360 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1361 Securities Sold Under Repurchase Agreements [Member] Member bsac:SecuritiesSoldUnderRepurchaseAgreementsMember
1362 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
1363 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
1364 Other Chilean Securities [Member] Member bsac:OtherChileanSecuritiesMember
1365 Foreign Financial Securities [Member] Member bsac:ForeignFinancialSecuritiesMember
1366 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1367 Equity [member] Member ifrs-full:EquityMember
1368 Total Attributable To Shareholders Of The Bank [Member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
1369 Non-controlling Interest [Member] Member ifrs-full:NoncontrollingInterestsMember
1370 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
1371 Available for sale investments Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAvailableforsale
1372 Other comprehensive income, net of tax, available-for-sale financial assets Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets
1373 Bank maintains guarantees amount Concept (Monetary) For Period Debit bsac:FinancialInstitutionsGuaranteesAmount
1374 00000140 - Disclosure - INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Details) Network

*

*

 http://santander.cl/role/InvestmentsInAssociatesAndOtherCompaniesDetails
1375 Disclosure of associates [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
1376 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1377 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1378 Redbanc S.A. [Member] Member bsac:RedbancSAMember
1379 Transbank S.A. [Member] Member bsac:TransbankSAMember
1380 Centro de Compensacion Automatizado S.A. [Member] Member bsac:CentrodeCompensacionAutomatizadoMember
1381 Sociedad Interbancaria de Deposito de Valores S.A. [Member] Member bsac:SociedadinterbancariadeDepositodeValoresSAMember
1382 Camara de Compensacion de Alto Valor S.A. [Member] Member bsac:CamaraCompensaciondeAltoValorSAMember
1383 Administrador Financiero del Transantiago S.A. [Member] Member bsac:AdministradorFinancierodelTransantiagoSAMember
1384 Sociedad Nexus S.A. [Member] Member bsac:SociedadNexusSAMember
1385 Servicios de Infraestructura de Mercado OTC S.A. [Member] Member bsac:ServiciosdeinfraestructuradeMercadoOTCSAMember
1386 Associated Companies [Member] Member ifrs-full:AssociatesMember
1387 Bladex [Member] Member bsac:BladexMember
1388 Stock Exchanges [Member] Member bsac:StockExchangesMember
1389 Others [Member] Member bsac:OthersAssociatesMember
1390 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1391 Ownership interest Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
1392 Investment value Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
1393 Profit and loss Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
1394 00000141 - Disclosure - INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Details 1) Network

*

*

 http://santander.cl/role/InvestmentsInAssociatesAndOtherCompaniesDetails1
1395 Disclosure of associates [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
1396 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1397 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1398 Bladex [Member] Member bsac:BladexMember
1399 Stock Exchanges [Member] Member bsac:StockExchangesMember
1400 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1401 Investment value Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
1402 00000142 - Disclosure - INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Details 2) Network

*

*

 http://santander.cl/role/InvestmentsInAssociatesAndOtherCompaniesDetails2
1403 Disclosure of associates [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
1404 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1405 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1406 Centro de Compensacion Automatizado S.A. [Member] Member bsac:CentrodeCompensacionAutomatizadoMember
1407 Redbanc S.A. [Member] Member bsac:RedbancSAMember
1408 Transbank S.A. [Member] Member bsac:TransbankSAMember
1409 Sociedad Interbancaria de Deposito de Valores S.A. [Member] Member bsac:SociedadinterbancariadeDepositodeValoresSAMember
1410 Sociedad Nexus S.A. [Member] Member bsac:SociedadNexusSAMember
1411 Servicios de Infraestructura de Mercado OTC S.A. [Member] Member bsac:ServiciosdeinfraestructuradeMercadoOTCSAMember
1412 Administrador Financiero del Transantiago S.A. [Member] Member bsac:AdministradorFinancierodelTransantiagoSAMember
1413 Camara de Compensacion de Alto Valor S.A. [Member] Member bsac:CamaraCompensaciondeAltoValorSAMember
1414 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1415 Assets Concept (Monetary) As Of Debit bsac:InvestmentsInSubsidiariesJointVenturesAndAssociatesAssets
1416 Liabilities Concept (Monetary) As Of Credit bsac:InvestmentsInSubsidiariesJointVenturesAndAssociatesLiabilities
1417 Equity Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
1418 Net income for the year Concept (Monetary) For Period Credit bsac:InvestmentsInSubsidiariesJointVenturesAndAssociatesNetIncome
1419 00000143 - Disclosure - INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Details 3) Network

*

*

 http://santander.cl/role/InvestmentsInAssociatesAndOtherCompaniesDetails3
1420 Implied Table Table

*

*

 implied:Table
1421 Investments In Associates And Other Companies Abstract bsac:InvestmentsInAssociatesAndOtherCompaniesAbstract
1422 Opening balance as of January 1, Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
1423 Acquisition of investments (*) Concept (Monetary) For Period Credit ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
1424 Sale of investments Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
1425 Participation in income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
1426 Dividends received Concept (Monetary) For Period Debit bsac:InvestmentsInSubsidiariesJointVenturesAndAssociatesDividendsReceived
1427 Other equity adjustments Concept (Monetary) For Period Debit bsac:InvestmentsInSubsidiariesJointVenturesAndAssociatesOther
1428 Total Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
1429 00000144 - Disclosure - INVESTMENTS IN ASSOCIATES AND OTHER COMPANIES (Details Narrative) Network

*

*

 http://santander.cl/role/InvestmentsInAssociatesAndOtherCompaniesDetailsNarrative
1430 Disclosure of associates [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
1431 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1432 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1433 Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA [Member] Member bsac:SociedadOperadoradelaCamaradeCompensaciondeppagosDeAltoValorSAMember
1434 Servicios de Market Infrastructure OTC SA [Member] Member bsac:ServiciosDeMarketInfrastructureOTCSAMember
1435 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1436 Ownership interest Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
1437 00000145 - Disclosure - INTANGIBLE ASSETS (Details) Network

*

*

 http://santander.cl/role/IntangibleAssetsDetails
1438 Disclosure of detailed information about intangible assets [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsTable
1439 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
1440 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
1441 Licenses [Member] Member ifrs-full:LicencesMember
1442 Software development [Member] Member ifrs-full:ComputerSoftwareMember
1443 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1444 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1445 Gross Carrying Amount [Member] Member ifrs-full:GrossCarryingAmountMember
1446 Accumulated Depreciation and Amortisation [Member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
1447 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
1448 Years of useful life Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
1449 Average remaining useful life Concept (xbrli:durationItemType) For Period bsac:AverageRemainingUsefulLife
1450 Net balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1451 00000146 - Disclosure - INTANGIBLE ASSETS (Details 1) Network

*

*

 http://santander.cl/role/IntangibleAssetsDetails1
1452 Disclosure of detailed information about intangible assets [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsTable
1453 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1454 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1455 Gross Carrying Amount [Member] Member ifrs-full:GrossCarryingAmountMember
1456 Accumulated Depreciation and Amortisation [Member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
1457 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
1458 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
1459 Licenses [Member] Member ifrs-full:LicencesMember
1460 Software development [Member] Member ifrs-full:ComputerSoftwareMember
1461 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
1462 Balances at beginning Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1463 Acquisitions Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
1464 Disposals and impairment Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsOtherThanGoodwill
1465 Year's amortization Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
1466 Other Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughOtherChangesIntangibleAssetsOtherThanGoodwill
1467 Balances at end Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1468 00000147 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT (Details) Network

*

*

 http://santander.cl/role/PropertyPlantAndEquipmentDetails
1469 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
1470 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1471 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1472 Land and Buildings [Member] Member ifrs-full:LandAndBuildingsMember
1473 Equipment [Member] Member ifrs-full:OfficeEquipmentMember
1474 Ceded Under Operating Leases [Member] Member ifrs-full:PropertyPlantAndEquipmentUnderOperatingLeasesMember
1475 Other [Member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
1476 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1477 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1478 Gross Carrying Amount [Member] Member ifrs-full:GrossCarryingAmountMember
1479 Accumulated Depreciation and Amortisation [Member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
1480 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1481 Total Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1482 00000148 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT (Details 1) Network

*

*

 http://santander.cl/role/PropertyPlantAndEquipmentDetails1
1483 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
1484 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1485 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1486 Gross Carrying Amount [Member] Member ifrs-full:GrossCarryingAmountMember
1487 Accumulated Depreciation and Amortisation [Member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
1488 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1489 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1490 Land and Buildings [Member] Member ifrs-full:LandAndBuildingsMember
1491 Equipment [Member] Member ifrs-full:OfficeEquipmentMember
1492 Ceded Under Operating Leases [Member] Member ifrs-full:PropertyPlantAndEquipmentUnderOperatingLeasesMember
1493 Other [Member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
1494 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1495 Balances at beginning Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1496 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
1497 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
1498 Impairment due to damage Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1499 Other Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment
1500 Balances at end Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1501 00000149 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT (Details 2) Network

*

*

 http://santander.cl/role/PropertyPlantAndEquipmentDetails2
1502 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

*

*

 ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateTable
1503 Maturity [axis] Axis ifrs-full:MaturityAxis
1504 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1505 Due Within 1 Year [Member] Member ifrs-full:NotLaterThanOneYearMember
1506 Due After 1 Year But Within 2 Years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1507 Due After 2 Years But Within 3 years [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1508 Due After 3 Years But Within 4 Years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1509 Due After 4 Years But Within 5 Years [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1510 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
1511 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 [line items] LineItems ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateLineItems
1512 Total Concept (Monetary) As Of Debit ifrs-full:MinimumLeasePaymentsReceivableUnderNoncancellableOperatingLease
1513 00000150 - Disclosure - PROPERTY, PLANT, AND EQUIPMENT (Details 3) Network

*

*

 http://santander.cl/role/PropertyPlantAndEquipmentDetails3
1514 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

*

*

 ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateTable
1515 Maturity [axis] Axis ifrs-full:MaturityAxis
1516 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1517 Due Within 1 Year [Member] Member ifrs-full:NotLaterThanOneYearMember
1518 Due After 1 Year But Within 2 Years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1519 Due After 2 Years But Within 3 years [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1520 Due After 3 Years But Within 4 Years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1521 Due After 4 Years But Within 5 Years [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1522 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
1523 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 [line items] LineItems ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateLineItems
1524 Total Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
1525 00000151 - Disclosure - CURRENT AND DEFERRED TAXES (Details) Network

*

*

 http://santander.cl/role/CurrentAndDeferredTaxesDetails
1526 Implied Table Table

*

*

 implied:Table
1527 Current And Deferred Taxes Abstract bsac:CurrentAndDeferredTaxesAbstract
1528 Summary of current tax liabilities (assets) Abstract bsac:CurrentTaxAssetsLiabilitiesAbstract
1529 Current tax (assets) Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssets
1530 Current tax liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
1531 Total tax payable (recoverable) Concept (Monetary) As Of Debit bsac:CurrentTaxAssetsLiabilities
1532 (Assets) liabilities current taxes detail (net) Abstract bsac:CurrentTaxAssetsLiabilitiesDetailsAbstract
1533 Income tax, tax rate Concept (Monetary) As Of Debit bsac:CurrentIncomeTaxes
1534 Minus: Abstract bsac:MinusAbstract
1535 Provisional monthly payments Concept (Monetary) As Of Debit bsac:CurrentProvisionalMonthlyPayments
1536 Credit for training expenses Concept (Monetary) As Of Debit bsac:CurrentCreditForTrainingExpenses
1537 Land taxes leasing Concept (Monetary) As Of Debit bsac:CurrentLandTaxesLeasing
1538 Grant credits Concept (Monetary) As Of Debit bsac:CurrentGrantCredits
1539 Other Concept (Monetary) As Of Debit bsac:CurrentOtherTax
1540 Total tax payable Concept (Monetary) As Of Debit bsac:CurrentTaxAssetsLiabilities
1541 00000152 - Disclosure - CURRENT AND DEFERRED TAXES (Details 1) Network

*

*

 http://santander.cl/role/CurrentAndDeferredTaxesDetails1
1542 Implied Table Table

*

*

 implied:Table
1543 Current And Deferred Taxes Abstract bsac:CurrentAndDeferredTaxesAbstract
1544 Income tax expense Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1545 Current tax Concept (Monetary) As Of Debit bsac:CurrentIncomeTaxes
1546 Credits (debits) for deferred taxes Abstract bsac:CreditChargeForDeferredTaxesAbstract
1547 Origination and reversal of temporary differences Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseArisingFromWritedownOrReversalOfWritedownOfDeferredTaxAsset
1548 Valuation provision Concept (Monetary) For Period Debit bsac:ValuationProvisionForDeferredTaxes
1549 Subtotals Concept (Monetary) For Period Debit bsac:CreditChargeForDeferredTaxes
1550 Tax for rejected expenses (Article No,21) Concept (Monetary) For Period Debit bsac:DeferredTaxesNonDeductibleExpenses
1551 Other Concept (Monetary) For Period Debit bsac:OtherDeferredTaxes
1552 Net charges for income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1553 00000153 - Disclosure - CURRENT AND DEFERRED TAXES (Details 2) Network

*

*

 http://santander.cl/role/CurrentAndDeferredTaxesDetails2
1554 Implied Table Table

*

*

 implied:Table
1555 Current And Deferred Taxes Abstract bsac:CurrentAndDeferredTaxesAbstract
1556 Tax calculated over profit before tax Concept (Monetary) For Period Debit bsac:IncomeTaxCalculatedOnNetIncomeBeforeTax
1557 Price level restatement for tax purposes Concept (Monetary) For Period Debit bsac:TaxEffectOfPriceLevelRestatementForTaxPurposes
1558 Single penalty tax (rejected expenses) Concept (Monetary) For Period Debit bsac:DeferredTaxesNonDeductibleExpenses
1559 Effect of tax reform changes on deferred tax Concept (Monetary) For Period Debit bsac:EffectOfTaxReformChangesOnDeferredTax
1560 Real estate taxes Concept (Monetary) For Period Debit bsac:RealEstateTaxes
1561 Other Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1562 Effective rates and expenses for income tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1563 Tax calculated over profit before tax Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1564 Price level restatement for tax purposes Concept (Percent) For Period bsac:PercentageOfTaxEffectOfPriceLevelRestatementForTaxPurposes
1565 Single penalty tax (rejected expenses) Concept (Percent) For Period bsac:PercentageOfDeferredTaxesNonDeductibleExpenses
1566 Effect of tax reform changes on deferred tax Concept (Percent) For Period bsac:PercentageOfEffectOfTaxReformChangesOnDeferredTax
1567 Real estate taxes Concept (Percent) For Period bsac:PercentageOfRealEstateTaxes
1568 Other Concept (Percent) For Period ifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1569 Effective rates and expenses for income tax Concept (Percent) For Period ifrs-full:AverageEffectiveTaxRate
1570 00000154 - Disclosure - CURRENT AND DEFERRED TAXES (Details 3) Network

*

*

 http://santander.cl/role/CurrentAndDeferredTaxesDetails3
1571 Implied Table Table

*

*

 implied:Table
1572 Current And Deferred Taxes Abstract bsac:CurrentAndDeferredTaxesAbstract
1573 Deferred tax assets Abstract ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossAbstract
1574 Available for sale investments Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToAvailableforsaleFinancialAssetsOfOtherComprehensiveIncome
1575 Debt instruments at FVOCI Concept (Monetary) For Period Debit bsac:IncomeTaxRelatingToDebtInstrumentsOfOtherComprehensiveIncome
1576 Cash flow hedges Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome
1577 Total deferred tax assets recognised through other comprehensive income Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
1578 Deferred tax liabilities Abstract bsac:DeferredTaxLiabilities1Abstract
1579 Available for sale investments Concept (Monetary) For Period Debit bsac:DeferredTaxLiabilitiesAvailableforsaleFinancialAssetsRecognizedThroughOtherComprehensiveIncome
1580 Debt instruments at FVOCI Concept (Monetary) For Period Debit bsac:DeferredTaxLiabilitiesDebtInstrumentsRecognizedThroughOtherComprehensiveIncome
1581 Cash flow hedges Concept (Monetary) For Period Debit bsac:DeferredTaxLiabilitiesCashFlowHedgesRecognizedThroughOtherComprehensiveIncome
1582 Total deferred tax liabilities recognised through other comprehensive income Concept (Monetary) For Period Debit bsac:TotalDeferredTaxLiabilitiesRecognizedThroughOtherComprehensiveIncome
1583 Net deferred tax balances in equity Concept (Monetary) For Period Debit bsac:NetDeferredTaxBalancesInEquity
1584 Deferred taxes in equity attributable to shareholders of the Bank Concept (Monetary) For Period Debit bsac:DeferredTaxesInEquityAttributableToParent
1585 Deferred tax in equity attributable to non-controlling interests Concept (Monetary) For Period Debit bsac:DeferredTaxesInEquityAttributableToNonControllingInterests
1586 00000155 - Disclosure - CURRENT AND DEFERRED TAXES (Details 4) Network

*

*

 http://santander.cl/role/CurrentAndDeferredTaxesDetails4
1587 Implied Table Table

*

*

 implied:Table
1588 Current And Deferred Taxes Abstract bsac:CurrentAndDeferredTaxesAbstract
1589 Deferred tax assets Abstract bsac:DeferredTaxAssetsAbstract
1590 Interests and adjustments Concept (Monetary) As Of Debit bsac:DeferredTaxAssetsInterestsAndAdjustments
1591 Non-recurring charge-offs Concept (Monetary) As Of Debit bsac:DeferredTaxAssetsNonRecurringChargeOffs
1592 Assets received in lieu of payment Concept (Monetary) As Of Debit bsac:DeferredTaxAssetsReceivedInLieuOfPayment
1593 Exchange rate adjustments Concept (Monetary) As Of Debit bsac:DeferredTaxAssetsExchangeRateAdjustments
1594 Property, plant and equipment valuation Concept (Monetary) As Of Debit bsac:DeferredTaxAssetPropertyPlantAndEquipment
1595 Allowance for loan losses Concept (Monetary) As Of Debit bsac:DeferredTaxAssetsAllowanceForLoanLosses
1596 Provision for expenses Concept (Monetary) As Of Debit bsac:DeferredTaxAssetsProvisionForExpenses
1597 Derivatives Concept (Monetary) As Of Debit bsac:DeferredTaxAssetsDerivatives
1598 Leased assets Concept (Monetary) As Of Debit bsac:DeferredTaxAssetsLeasedAssets
1599 Subsidiaries tax losses Concept (Monetary) As Of Debit bsac:DeferredTaxAssetsSubsidiariesTaxLosses
1600 Prepaid expenses Concept (Monetary) As Of Debit bsac:DeferredTaxAssetsPrepaidExpenses
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1606 Valuation provision Concept (Monetary) As Of Credit bsac:DeferredTaxLiabilitiesValuationProvision
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1610 00000156 - Disclosure - CURRENT AND DEFERRED TAXES (Details 5) Network

*

*

 http://santander.cl/role/CurrentAndDeferredTaxesDetails5
1611 Implied Table Table

*

*

 implied:Table
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1620 Total deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1621 00000157 - Disclosure - CURRENT AND DEFERRED TAXES (Details Narrative) Network

*

*

 http://santander.cl/role/CurrentAndDeferredTaxesDetailsNarrative
1622 Implied Table Table

*

*

 implied:Table
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1624 Tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1625 00000158 - Disclosure - OTHER ASSETS (Details) Network

*

*

 http://santander.cl/role/OtherAssetsDetails
1626 Implied Table Table

*

*

 implied:Table
1627 Other Assets Abstract bsac:OtherAssetsDisclosureAbstract
1628 Assets for leasing Concept (Monetary) As Of Debit ifrs-full:RightofuseAssets
1629 Assets received or awarded in lieu of payment Abstract bsac:AssetsReceivedOrAwardedInLieuOfPaymentAbstract
1630 Assets received in lieu of payment Concept (Monetary) As Of Debit bsac:AssetsReceivedInLieuOfPayment
1631 Assets awarded at judicial sale Concept (Monetary) As Of Debit bsac:AssetsAwardedAtJudicialSale
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1636 Gold investments Concept (Monetary) As Of Debit bsac:InvestmentInGold
1637 VAT credit Concept (Monetary) As Of Debit ifrs-full:ValueAddedTaxReceivables
1638 Income tax recoverable Concept (Monetary) As Of Debit bsac:IncomeTaxRecoverable
1639 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:Prepayments
1640 Assets recovered from leasing for sale Concept (Monetary) As Of Debit bsac:AssetsRecoveredFromLeasingForSale
1641 Valuation adjustments by macrohedge Concept (Monetary) As Of Debit bsac:ValuationAdjustmentsByMacrohedge
1642 Pension plan assets Concept (Monetary) As Of Debit bsac:PensionPlanAssets
1643 Accounts and notes receivable Concept (Monetary) As Of Debit bsac:AccountsAndNotesReceivableNet1
1644 Notes receivable through brokerage and simultaneous transactions Concept (Monetary) As Of Debit bsac:NotesReceivableThroughBrokerageAndSimultaneousTransactions
1645 Other receivable assets Concept (Monetary) As Of Debit bsac:OtherReceivableAssets
1646 Other assets Concept (Monetary) As Of Debit bsac:OtherAssets1
1647 Subtotal Concept (Monetary) As Of Debit ifrs-full:OtherAssets
1648 Total Concept (Monetary) As Of Debit ifrs-full:OtherFinancialAssets
1649 00000159 - Disclosure - TIME DEPOSITS AND OTHER TIME LIABILITIES (Details) Network

*

*

 http://santander.cl/role/TimeDepositsAndOtherTimeLiabilitiesDetails
1650 Implied Table Table

*

*

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1652 Deposits and other demand liabilities Abstract bsac:DepositsAndOtherDemandLiabilitiesAbstract
1653 Checking accounts Concept (Monetary) As Of Credit bsac:CheckingAccounts
1654 Other deposits and demand accounts Concept (Monetary) As Of Credit bsac:OtherDepositsAndDemandAccounts
1655 Other demand liabilities Concept (Monetary) As Of Credit bsac:BalancesOnOtherDemandLiabilities
1656 Total Concept (Monetary) As Of Credit ifrs-full:BalancesOnDemandDepositsFromCustomers
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1658 Time deposits Concept (Monetary) As Of Credit bsac:TimeDeposits1
1659 Time savings account Concept (Monetary) As Of Credit bsac:TermSavingsAccounts
1660 Other time liabilities Concept (Monetary) As Of Credit ifrs-full:BalancesOnOtherDepositsFromCustomers
1661 Total Concept (Monetary) As Of Credit ifrs-full:BalancesOnTermDepositsFromCustomers
1662 00000160 - Disclosure - INTERBANK BORROWINGS (Details) Network

*

*

 http://santander.cl/role/InterbankBorrowingsDetails
1663 Disclosure of financial liabilities [table] Table

*

*

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1664 Legal Entity [Axis] Axis dei:LegalEntityAxis
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1666 Loans From Financial Institutions And The Central Bank Of Chile [Member] Member bsac:LoansFromFinancialInstitutionsAndTheCentralBankOfChileMember
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1669 Loans from foreign financial institutions, continuacion [Member] Member bsac:LoansFromForeignFinancialInstitutionsContinuacionMember
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1671 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1672 Borrowings And Other Obligations [Member] Member bsac:BorrowingsAndOtherObligationsMember
1673 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1674 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1675 Bank Of America N.A. [Member] Member bsac:BankOfAmericaNAMember
1676 Sumitomo Mitsui Banking Corporation [Member] Member bsac:SumitomoMitsuiBankingCorporationMember
1677 Citibank N.A. [Member] Member bsac:CitibankNAMember
1678 Mizuho Bank Ltd. NY. [Member] Member bsac:MizuhoBankLtdNYMember
1679 Wells Fargo Bank N.A. [Member] Member bsac:WellsFargoBankNAMember
1680 The Bank of Nova Scotia [Member] Member bsac:TheBankofNovaScotiaMember
1681 The Bank of New York Mellon [Member] Member bsac:TheBankofNewYorkMellonMember
1682 Corporacion Andina De Fomento [Member] Member bsac:CorporacionAndinaDeFomentoMember
1683 Standard Chartered Bank [Member] Member bsac:StandardCharteredBankMember
1684 Barclays Bank PLC London [Member] Member bsac:BarclaysBankPLCLondonMember
1685 HSBC Bank Plc NY [Member] Member bsac:HsbcBankPlcNyMember
1686 Wachovia Bank, NA [Member] Member bsac:WachoviaBankNAMember
1687 Banco Santander Brasil S.A. [Member] Member bsac:BancoSantanderBrasilSAMember
1688 Bank of China [Member] Member bsac:BankofChinaMember
1689 Banco Santander - Hong Kong [Member] Member bsac:BancoSantanderHongKongMember
1690 Deutsche Bank A.G. [Member] Member bsac:DeutscheBankAGMember
1691 Bnp Paribas, Hong Kong Branch [Member] Member bsac:BnpParibasHongKongBranchMember
1692 Keb Hana Bank [Member] Member bsac:KebHanaBankMember
1693 Rabobank, Hong Kong Branch [Member] Member bsac:RabobankHongKongBranchMember
1694 Hong Kong and Shanghai Banking [Member] Member bsac:HongKongandShanghaiBankingMember
1695 Banco Santander Central Hispano [Member] Member bsac:BancoSantanderCentralHispanoMember
1696 Unicredito Italiano [Member] Member bsac:UnicreditoItalianoMember
1697 Bank of Tokyo Mitsubishi [Member] Member bsac:BankofTokyoMitsubishiMember
1698 Banco Bilbao Vizcaya Argentaria [Member] Member bsac:BancoBilbaoVizcayaArgentariaMember
1699 Standard Chartered Bank Malays [Member] Member bsac:StandardCharteredBankMalaysMember
1700 Dexia Bank SA [Member] Member bsac:DexiaBankSAMember
1701 Banque Bruxelles Lambert S.A. [Member] Member bsac:BanqueBruxellesLambertSAMember
1702 Hsbc Bank Usa [Member] Member bsac:HsbcBankUsaMember
1703 Shinhan Bank [Member] Member bsac:ShinhanBankMember
1704 United Bank of India [Member] Member bsac:UnitedBankofIndiaMember
1705 Woori Bank [Member] Member bsac:WooriBankMember
1706 State Bank of India [Member] Member bsac:StateBankofIndiaMember
1707 Banca Commerciale Italiana S.P. [Member] Member bsac:BancaCommercialeItalianaSPMember
1708 Shanghai Pudong Development [Member] Member bsac:ShanghaiPudongDevelopmentMember
1709 Banco de Galicia Y Buenos Aires [Member] Member bsac:BancoDeGaliciaYBuenosAiresMember
1710 Bank of East Asia, Limited [Member] Member bsac:BankofEastAsiaLimitedMember
1711 First Union National Bank [Member] Member bsac:FirstUnionNationalBankMember
1712 Industrial Bank of Korea [Member] Member bsac:IndustrialBankofKoreaMember
1713 Canara Bank [Member] Member bsac:CanaraBankMember
1714 Banca Monte dei Paschi di Siena [Member] Member bsac:BancaMontedeiPaschidiSienaMember
1715 Metropolitan Bank Limited [Member] Member bsac:MetropolitanBankLimitedMember
1716 Hua Nan Commercial Bank Ltd. [Member] Member bsac:HuaNanCommercialBankLtdMember
1717 Credit Lyonnais [Member] Member bsac:CreditLyonnaisMember
1718 Bank of Shanghai [Member] Member bsac:BankOfShanghaiMember
1719 Bank of Taiwan [Member] Member bsac:BankofTaiwanMember
1720 Agricultural Bank of China [Member] Member bsac:AgriculturalBankofChinaMember
1721 Akbank T,A,S, [Member] Member bsac:AkbankTASMember
1722 Credit Agricole [Member] Member bsac:CreditAgricoleMember
1723 Banco Bradesco S.A. [Member] Member bsac:BancoBradescoSAMember
1724 Oriental Bank of Commerce [Member] Member bsac:OrientalBankofCommerceMember
1725 Kookmin Bank [Member] Member bsac:KookminBankMember
1726 Banca Nazionale Del Lavoro S,P [Member] Member bsac:BancaNazionaleDelLavoroSPMember
1727 Hsbc Bank Middle East [Member] Member bsac:HsbcBankMiddleEastMember
1728 International Commercial Bank [Member] Member bsac:InternationalCommercialBankMember
1729 Taiwan Cooperative Bank [Member] Member bsac:TaiwanCooperativeBankMember
1730 Banca Lombarda E Piemontese S. [Member] Member bsac:BancaLombardaEPiemonteseSMember
1731 Hanvit Bank [Member] Member bsac:HanvitBankMember
1732 Bank of India [Member] Member bsac:BankOfIndiaMember
1733 Caixabank S.A. [Member] Member bsac:CaixabankSAMember
1734 Fortis Bank S.A./N.V. Brussels [Member] Member bsac:FortisBankSANVBrusselsMember
1735 Banco de la Republica Oriental [Member] Member bsac:BancoDeLaRepublicaOrientalMember
1736 Bank of Baroda [Member] Member bsac:BankOfBarodaMember
1737 China Construccion Bank [Member] Member bsac:ChinaConstruccionBankMember
1738 Banco Internacional S.A. [Member] Member bsac:BancoInternacionalSAMember
1739 Joint Stock Commercial Bank Fo, [Member] Member bsac:JointStockCommercialBankFoMember
1740 Shanghai Commercial and Saving [Member] Member bsac:ShanghaiCommercialAndSavingMember
1741 Banistmo S,A, [Member] Member bsac:BanistmoSAMember
1742 Banca Popolare Dell'Emilia Rom [Member] Member bsac:BancaPopolareDellEmiliaRomMember
1743 Bank of Montreal [Member] Member bsac:BankofMontrealMember
1744 Raiffeisen Bank Polska S,A, [Member] Member bsac:RaiffeisenBankPolskaSAMember
1745 Casa Di Risparmo De Padova E.R. [Member] Member bsac:CasaDiRisparmoDePadovaERMember
1746 Industrial And Commercial Bank [Member] Member bsac:IndustrialAndCommercialBankMember
1747 Hdfc Bank Limited [Member] Member bsac:HdfcBankLimitedMember
1748 Bankinter S,A, [Member] Member bsac:BankinterSAMember
1749 Kbc Bank Nv [Member] Member bsac:KbcBankNvMember
1750 Banco Bpm SPA [Member] Member bsac:BancoBpmSPAMember
1751 Cassa Di Risparmio In Bologna [Member] Member bsac:CassaDiRisparmioInBolognaMember
1752 Banco De Sabadell S.A. [Member] Member bsac:BancoDeSabadellSA1Member
1753 Banco Commerzbank [Member] Member bsac:BancoCommerzbank1Member
1754 Taiwan Business Bank [Member] Member bsac:TaiwanBusinessBankMember
1755 Cajas Rurales Unidas [Member] Member bsac:CajasRuralesUnidasMember
1756 Chang Hwa Commercial Bank Ltd. [Member] Member bsac:ChangHwaCommercialBankLtdMember
1757 U,S. Bank Formerly First Bank [Member] Member bsac:USBankFormerlyFirstBankMember
1758 United World Chinese Commercia [Member] Member bsac:UnitedWorldChineseCommerciaMember
1759 Banco Itau S,A, [Member] Member bsac:BancoItauSAMember
1760 Mega International Commercial [Member] Member bsac:MegaInternationalCommercialMember
1761 Banca Popolare Di Milano S,C,A [Member] Member bsac:BancaPopolareDiMilanoSCAMember
1762 Hang Seng Bank (China) Limited [Member] Member bsac:HangSengBankChinaLimitedMember
1763 Sumitono Mitsui [Member] Member bsac:SumitonoMitsuiMember
1764 Development Bank Of Singapore [Member] Member bsac:DevelopmentBankOfSingaporeMember
1765 Abanca Corporacion Bancaria SA [Member] Member bsac:AbancaCorporacionBancariaSAMember
1766 Australia And New Zealand Bank [Member] Member bsac:AustraliaAndNewZealandBankMember
1767 Banca Delle Marche Spa [Member] Member bsac:BancaDelleMarcheSpaMember
1768 Banco Bradesco S,A, [Member] Member bsac:BancoBradescoSA1Member
1769 Banco Caixa Geral. [Member] Member bsac:BancoCaixaGeralMember
1770 Banco Commerzbank [Member] Member bsac:BancoCommerzbankMember
1771 Banco de occidente [Member] Member bsac:BancodeoccidenteMember
1772 Banco De Sabadell S.A. [Member] Member bsac:BancoDeSabadellSAMember
1773 Banco Do Brasil S.A. [Member] Member bsac:BancoDoBrasilSAMember
1774 Banco Internacional S,A, [Member] Member bsac:BancoInternacionalSA1Member
1775 Banco Popolare Soc Coop [Member] Member bsac:BancoPopolareSocCoopMember
1776 Banco Popular Espanol S.A. [Member] Member bsac:BancoPopularEspanolSAMember
1777 Bancolombia S.A. [Member] Member bsac:BancolombiaSAMember
1778 Bank Austria A.G. [Member] Member bsac:BankAustriaAGMember
1779 Bank of Communications [Member] Member bsac:BankofCommunicationsMember
1780 Bank Of Nova Scotia [Member] Member bsac:BankOfNovaScotiaMember
1781 Banque Generale Du Luxembourg [Member] Member bsac:BanqueGeneraleDuLuxembourgMember
1782 Cassa Di Risparmio Di Parma E [Member] Member bsac:CassaDiRisparmioDiParmaEMember
1783 Citic Industrial Bank [Member] Member bsac:CiticIndustrialBankMember
1784 Corporacion Andina De Fomento [Member] Member bsac:CorporacionAndinaDeFomento1Member
1785 European Investment Bank [Member] Member bsac:EuropeanInvestmentBankMember
1786 Habib Bank Limited [Member] Member bsac:HabibBankLimitedMember
1787 Hang Seng Bank Ltd. [Member] Member bsac:HangSengBankLtdMember
1788 Hsbc Bank Plc [Member] Member bsac:HsbcBankPlcMember
1789 Icici Bank Limited [Member] Member bsac:IciciBankLimitedMember
1790 J.P. Morgan Chase Bank N.A. [Member] Member bsac:JPMorganChaseBankNAMember
1791 Kasikornbank Public Company Li. [Member] Member bsac:KasikornbankPublicCompanyLiMember
1792 Liu Chong Hing Bank Limited [Member] Member bsac:LiuChongHingBankLimitedMember
1793 Mizuho Corporate Bank [Member] Member bsac:MizuhoCorporateBankMember
1794 Punjab National Bank [Member] Member bsac:PunjabNationalBankMember
1795 Shanghai Pudong Development [Member] Member bsac:ShanghaiPudongDevelopment1Member
1796 Societe Generale [Member] Member bsac:SocieteGeneraleMember
1797 Thai Military Bank Public Comp [Member] Member bsac:ThaiMilitaryBankPublicCompMember
1798 The Toronto-Dominion Bank [Member] Member bsac:TheTorontoDominionBankMember
1799 Yapi Ve Kredi Bankasi A.S. [Member] Member bsac:YapiVeKrediBankasiASMember
1800 Zhejiang Commercial Bank Ltd. [Member] Member bsac:ZhejiangCommercialBankLtdMember
1801 Subtotal [Member] Member bsac:SubtotalMember
1802 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1803 Interbank borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1804 00000161 - Disclosure - INTERBANK BORROWINGS (Details 1) Network

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*

 http://santander.cl/role/InterbankBorrowingsDetails1
1805 Disclosure of financial liabilities [table] Table

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*

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1806 Legal Entity [Axis] Axis dei:LegalEntityAxis
1807 Entity [Domain] Member dei:EntityDomain
1808 Loans From Financial Institutions And The Central Bank Of Chile [Member] Member bsac:LoansFromFinancialInstitutionsAndTheCentralBankOfChileMember
1809 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1810 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1811 Borrowings And Other Obligations [Member] Member bsac:BorrowingsAndOtherObligationsMember
1812 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1813 Interbank borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1814 00000162 - Disclosure - INTERBANK BORROWINGS (Details 2) Network

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*

 http://santander.cl/role/InterbankBorrowingsDetails2
1815 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
1816 Legal Entity [Axis] Axis dei:LegalEntityAxis
1817 Entity [Domain] Member dei:EntityDomain
1818 Loans From Domestic Financial Institutions [Member] Member bsac:LoansFromDomesticFinancialInstitutionsMember
1819 Maturity [axis] Axis ifrs-full:MaturityAxis
1820 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1821 Due Within 1 Year [Member] Member ifrs-full:NotLaterThanOneYearMember
1822 Due After 1 Year But Within 2 Years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1823 Due After 2 Years But Within 3 years [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1824 Due After 3 Years But Within 4 Years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1825 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
1826 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 [line items] LineItems ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateLineItems
1827 Interbank borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1828 00000163 - Disclosure - INTERBANK BORROWINGS (Details 3) Network

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*

 http://santander.cl/role/InterbankBorrowingsDetails3
1829 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
1830 Legal Entity [Axis] Axis dei:LegalEntityAxis
1831 Entity [Domain] Member dei:EntityDomain
1832 Loans From Foreign Financial Institutions [Member] Member bsac:LoansFromForeignFinancialInstitutionsMember
1833 Maturity [axis] Axis ifrs-full:MaturityAxis
1834 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1835 Due Within 1 Year [Member] Member ifrs-full:NotLaterThanOneYearMember
1836 Due After 1 Year But Within 2 Years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1837 Due After 2 Years But Within 3 years [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1838 Due After 3 Years But Within 4 Years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1839 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
1840 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 [line items] LineItems ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateLineItems
1841 Interbank borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1842 00000164 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details) Network

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*

 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails
1843 Disclosure of financial liabilities [table] Table

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*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1844 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
1845 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
1846 Obligations To Public Sector [Member] Member bsac:ObligationsToPublicSectorMember
1847 Other Domestic Obligations [Member] Member bsac:OtherDomesticObligationsMember
1848 Foreign Obligations [Member] Member bsac:ForeignObligationsMember
1849 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1850 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1851 Mortgage Finance Bonds [Member] Member bsac:MortgageFinanceBondsMember
1852 Senior Bonds [Member] Member bsac:SeniorBondsMember
1853 Mortgage Bonds [Member] Member bsac:MortgageBondsMember
1854 Subordinated Bonds [Member] Member bsac:SubordinatedBondsMember
1855 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1856 Subtotals Concept (Monetary) As Of Credit ifrs-full:OtherFinancialLiabilities
1857 Subtotals Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
1858 Issued debt instruments and other financial liabilities Concept (Monetary) As Of Credit bsac:IssuedDebtInstrumentsAndOtherFinancialLiabilities
1859 00000165 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 1) Network

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*

 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails1
1860 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1861 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1862 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1863 Mortgage Finance Bonds [Member] Member bsac:MortgageFinanceBondsMember
1864 Senior Bonds [Member] Member bsac:SeniorBondsMember
1865 Mortgage Bonds [Member] Member bsac:MortgageBondsMember
1866 Subordinated Bonds [Member] Member bsac:SubordinatedBondsMember
1867 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1868 Issued debt instruments current Concept (Monetary) As Of Debit bsac:IssuedDebtInstrumentsCurrent
1869 Issued debt instruments non current Concept (Monetary) As Of Debit bsac:IssuedDebtInstrumentsNonCurrent
1870 Issued debt instruments Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
1871 Other financial liabilities current Concept (Monetary) As Of Credit ifrs-full:OtherCurrentFinancialLiabilities
1872 Other financial liabilities non current Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentFinancialLiabilities
1873 Other financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherFinancialLiabilities
1874 Issued debt instruments and other financial liabilities current Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
1875 Issued debt instruments and other financial liabilities non current Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1876 Issued debt instruments and other financial liabilities Concept (Monetary) As Of Credit bsac:IssuedDebtInstrumentsAndOtherFinancialLiabilities
1877 00000166 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 2) Network

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 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails2
1878 Disclosure of financial liabilities [table] Table

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*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1879 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1880 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1881 Mortgage Finance Bonds [Member] Member bsac:MortgageFinanceBondsMember
1882 Maturity [axis] Axis ifrs-full:MaturityAxis
1883 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1884 Due Within 1 Year [Member] Member ifrs-full:NotLaterThanOneYearMember
1885 Due After 1 Year But Within 2 Years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1886 Due After 2 Years But Within 3 years [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1887 Due After 3 Years But Within 4 Years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1888 Due After 4 Years But Within 5 Years [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1889 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
1890 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1891 Issued debt instruments Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
1892 00000167 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 3) Network

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 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails3
1893 Disclosure of financial liabilities [table] Table

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*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1894 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1895 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1896 Senior Bonds [Member] Member bsac:SeniorBondsMember
1897 Currency [Axis] Axis srt:CurrencyAxis
1898 All Currencies [Domain] Member currency:AllCurrenciesDomain
1899 Unidad De Fomento (funds code) [Member] Member currency:CLF
1900 USD [Member] Member currency:USD
1901 Switzerland, Francs Member currency:CHF
1902 Chile, Pesos Member currency:CLP
1903 AUD Member currency:AUD
1904 JPY [Member] Member currency:JPY
1905 EUR Member currency:EUR
1906 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1907 Issued debt instruments Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
1908 00000168 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 4) Network

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*

 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails4
1909 Disclosure of financial liabilities [table] Table

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*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1910 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1911 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1912 Senior Bonds [Member] Member bsac:SeniorBondsMember
1913 Currency [Axis] Axis srt:CurrencyAxis
1914 All Currencies [Domain] Member currency:AllCurrenciesDomain
1915 Unidad De Fomento (funds code) [Member] Member currency:CLF
1916 Chile, Pesos Member currency:CLP
1917 USD [Member] Member currency:USD
1918 AUD Member currency:AUD
1919 EUR Member currency:EUR
1920 Switzerland, Francs Member currency:CHF
1921 JPY [Member] Member currency:JPY
1922 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1923 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1924 T9 [Member] Member bsac:Tier9Member
1925 T13 [Member] Member bsac:Tier13Member
1926 Total [Member] Member bsac:SantanderBondsUFMember
1927 SD [Member] Member bsac:SantanderBondsSDSeriesCLPMember
1928 T16 [Member] Member bsac:Tier16Member
1929 DN [Member] Member bsac:SantanderBondsDNSeriesUSDMember
1930 DN [Member] Member bsac:SantanderBondsDN1SeriesUSDMember
1931 DN [Member] Member bsac:SantanderBondsDN2SeriesUSDMember
1932 DN [Member] Member bsac:SantanderBondsDN3SeriesUSDMember
1933 DN [Member] Member bsac:SantanderBondsDN4SeriesUSDMember
1934 DN [Member] Member bsac:SantanderBondsDN5SeriesUSDMember
1935 DN [Member] Member bsac:SantanderBondsDN6SeriesUSDMember
1936 Total [Member] Member bsac:SantanderBondsUSDMember
1937 Senior Bonds Related To AUD [Member] Member bsac:SeniorBondsRelatedToAUDMember
1938 Total [Member] Member bsac:SantanderBondsCHFMember
1939 T1 [Member] Member bsac:Tier1Member
1940 T4 [Member] Member bsac:Tier4Member
1941 T11 [Member] Member bsac:Tier11Member
1942 T12 [Member] Member bsac:Tier12Member
1943 T15 [Member] Member bsac:Tier15Member
1944 P5 [Member] Member bsac:SantanderBondsSP5CLPMember
1945 U4 [Member] Member bsac:SantanderBondsSU4CLPMember
1946 U3 [Member] Member bsac:SantanderBondsSU3CLPMember
1947 EUR [Member] Member bsac:SantanderBondsEURSeriesEURMember
1948 EUR [Member] Member bsac:SantanderBondsEUR1SeriesEURMember
1949 Total [Member] Member bsac:SantanderBondsEURMember
1950 CHF [Member] Member bsac:SantanderBondsCHFSeriesCHFMember
1951 JPY [Member] Member bsac:CurrentBondsJPYSeriesJPYMember
1952 JPY [Member] Member bsac:CurrentBondsJPYSeriesJPY1Member
1953 Total [Member] Member bsac:CurrentBondsJPYMember
1954 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1955 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
1956 Terms Years Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
1957 Issuance rate (annual) Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1958 Description of Issuance rate (annual) Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
1959 Series approval date Concept (Date) For Period bsac:SeriesApprovalDate
1960 Series maximum amount Concept (Monetary) For Period Debit bsac:SeriesMaximumAmount
1961 Maturity date Concept (Date) For Period bsac:BorrowingsMaturityDate
1962 00000169 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 5) Network

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*

 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails5
1963 Disclosure of financial liabilities [table] Table

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*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1964 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1965 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1966 Senior Bonds [Member] Member bsac:SeniorBondsMember
1967 Senior Bonds [Member] Member bsac:SeniorBonds1Member
1968 Senior Bonds [Member] Member bsac:SeniorBonds2Member
1969 Senior Bonds [Member] Member bsac:SeniorBonds3Member
1970 Senior Bonds [Member] Member bsac:SeniorBonds4Member
1971 Senior Bonds [Member] Member bsac:SeniorBonds5Member
1972 Senior Bonds [Member] Member bsac:SeniorBonds6Member
1973 Senior Bonds [Member] Member bsac:SeniorBonds7Member
1974 Senior Bonds [Member] Member bsac:SeniorBonds8Member
1975 Senior Bonds [Member] Member bsac:SeniorBonds9Member
1976 Senior Bonds [Member] Member bsac:SeniorBonds10Member
1977 Senior Bonds [Member] Member bsac:SeniorBonds11Member
1978 Senior Bonds [Member] Member bsac:SeniorBonds12Member
1979 Senior Bonds [Member] Member bsac:SeniorBonds13Member
1980 Senior Bonds [Member] Member bsac:SeniorBonds14Member
1981 Senior Bonds [Member] Member bsac:SeniorBonds15Member
1982 Senior Bonds [Member] Member bsac:SeniorBonds16Member
1983 Currency [Axis] Axis srt:CurrencyAxis
1984 All Currencies [Domain] Member currency:AllCurrenciesDomain
1985 USD [Member] Member currency:USD
1986 Unidad De Fomento (funds code) [Member] Member currency:CLF
1987 Chile, Pesos Member currency:CLP
1988 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1989 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
1990 Issuance date Concept (Date) For Period bsac:BorrowingIssuanceDate
1991 00000170 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 6) Network

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*

 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails6
1992 Disclosure of financial liabilities [table] Table

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*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1993 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1994 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1995 Senior Bonds [Member] Member bsac:SeniorBondsMember
1996 Maturity [axis] Axis ifrs-full:MaturityAxis
1997 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1998 Due Within 1 Year [Member] Member ifrs-full:NotLaterThanOneYearMember
1999 Due After 1 Year But Within 2 Years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2000 Due After 2 Years But Within 3 years [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2001 Due After 3 Years But Within 4 Years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2002 Due After 4 Years But Within 5 Years [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2003 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
2004 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
2005 Issued debt instruments Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
2006 00000171 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 7) Network

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*

 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails7
2007 Disclosure of financial liabilities [table] Table

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*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
2008 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
2009 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
2010 Mortgage Bonds [Member] Member bsac:MortgageBondsMember
2011 Currency [Axis] Axis srt:CurrencyAxis
2012 All Currencies [Domain] Member currency:AllCurrenciesDomain
2013 Unidad De Fomento (funds code) [Member] Member currency:CLF
2014 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
2015 Issued debt instruments Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
2016 00000172 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 8) Network

*

*

 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails8
2017 Disclosure of financial liabilities [table] Table

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*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
2018 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
2019 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
2020 Mortgage Bonds [Member] Member bsac:MortgageBondsMember
2021 Maturity [axis] Axis ifrs-full:MaturityAxis
2022 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2023 Due Within 1 Year [Member] Member ifrs-full:NotLaterThanOneYearMember
2024 Due After 1 Year But Within 2 Years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2025 Due After 2 Years But Within 3 years [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2026 Due After 3 Years But Within 4 Years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2027 Due After 4 Years But Within 5 Years [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2028 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
2029 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
2030 Issued debt instruments Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
2031 00000173 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 9) Network

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*

 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails9
2032 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
2033 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
2034 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
2035 Subordinated Bonds [Member] Member bsac:SubordinatedBondsMember
2036 Currency [Axis] Axis srt:CurrencyAxis
2037 All Currencies [Domain] Member currency:AllCurrenciesDomain
2038 Chile, Pesos Member currency:CLP
2039 Unidad De Fomento (funds code) [Member] Member currency:CLF
2040 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
2041 Issued debt instruments Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
2042 00000174 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 10) Network

*

*

 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails10
2043 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
2044 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
2045 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
2046 Subordinated Bonds [Member] Member bsac:SubordinatedBondsMember
2047 Maturity [axis] Axis ifrs-full:MaturityAxis
2048 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2049 Due Within 1 Year [Member] Member ifrs-full:NotLaterThanOneYearMember
2050 Due After 1 Year But Within 2 Years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2051 Due After 2 Years But Within 3 years [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2052 Due After 3 Years But Within 4 Years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2053 Due After 4 Years But Within 5 Years [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2054 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
2055 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
2056 Issued debt instruments Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
2057 00000175 - Disclosure - ISSUED DEBT INSTRUMENTS AND OTHER FINANCIAL LIABILITIES (Details 11) Network

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*

 http://santander.cl/role/IssuedDebtInstrumentsAndOtherFinancialLiabilitiesDetails11
2058 Disclosure of maturity analysis for derivative financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesTable
2059 Maturity [axis] Axis ifrs-full:MaturityAxis
2060 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2061 Due After 1 Year But Within 2 Years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2062 Due After 2 Years But Within 3 years [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2063 Due After 3 Years But Within 4 Years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2064 Due After 4 Years But Within 5 Years [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2065 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
2066 Disclosure of maturity analysis for derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesLineItems
2067 Non-current portion: Abstract bsac:OtherNoncurrentFinancialLiabilitiesAbstract
2068 Non-current portion subtotal Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentFinancialLiabilities
2069 Current portion: Abstract bsac:OtherCurrentFinancialLiabilitiesAbstract
2070 Amounts due to credit card operators Concept (Monetary) As Of Credit bsac:AmountsDueToCreditCardOperators
2071 Acceptance of letters of credit Concept (Monetary) As Of Credit bsac:AcceptanceOfLettersOfCredit
2072 Other long-term financial obligations, short-term portion Concept (Monetary) As Of Credit bsac:OtherLongTermFinancialObligationsShortTermPortion
2073 Current portion subtotal Concept (Monetary) As Of Credit ifrs-full:OtherCurrentFinancialLiabilities
2074 Total other financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherFinancialLiabilities
2075 00000176 - Disclosure - MATURITY OF FINANCIAL ASSETS AND LIABILITIES (Details) Network

*

*

 http://santander.cl/role/MaturityOfFinancialAssetsAndLiabilitiesDetails
2076 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2077 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
2078 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
2079 Cash And Deposits In Banks [Member] Member bsac:CashAndDepositsInBanksMember
2080 Cash Items In Process Of Collection [Member] Member bsac:CashItemsInProcessOfCollectionMember
2081 Trading Investments [Member] Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember
2082 Investments Under Resale Agreements [Member] Member bsac:InvestmentsUnderResaleAgreementsMember
2083 Financial Derivative Contracts [Member] Member bsac:FinancialAssetsDerivativeContractsCategoryMember
2084 Interbank Borrowings [Member] Member bsac:InterbankBorrowingsMember
2085 Loans and Account Receivable From Customers and Interbank Loans, Net [Member] Member bsac:LoansAndReceivablesAndInnterBankLoansNetCategoryMember
2086 Available For Sale Investments [Member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
2087 Guarantee Deposits (Margin Accounts) [Member] Member bsac:FinancialAssetsGuaranteeDepositsMarginAccountsCategoryMember
2088 Loans and accounts receivables at amortised cost [Member] Member ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember
2089 Loans and account receivable at fvoci [Member] Member bsac:LoansAndAccountReceivableAtFVOCIMember
2090 Debt Instruments At FVOCI [Member] Member bsac:DebtInstrumentsAtFVOCIMember
2091 Equity instruments at fvoci [Member] Member bsac:EquityInstrumentsAtFVOCIMember
2092 Maturity [axis] Axis ifrs-full:MaturityAxis
2093 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2094 Demand [Member] Member bsac:OnDemandMaturityMember
2095 Not Later Than One Month [Member] Member ifrs-full:NotLaterThanOneMonthMember
2096 Later Than One Month And Not Later Than Three Months [Member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
2097 More Than 3 Months To 1 Year [Member] Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanOneYearMember
2098 Due Within 1 Year [Member] Member ifrs-full:NotLaterThanOneYearMember
2099 Between 1 and 3 years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
2100 Later than three years and not later than five years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
2101 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
2102 More Than 1 Year [Member] Member ifrs-full:LaterThanOneYearMember
2103 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
2104 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
2105 Deposits and Interbank Borrowings [Member] Member bsac:FinancialLiabilitiesDepositsAndInterbankBorrowingsCategoryMember
2106 Cash items in process of being cleared [Member] Member bsac:CashItemsInProcessOfBeingClearedMember
2107 Obligations under repurchase agreements [Member] Member bsac:ObligationsUnderRepurchaseAgreementsMember
2108 Time deposits and other time liabilities [Member] Member bsac:TimeDepositsAndOtherTimeLiabilitiesMember
2109 Financial Derivative Contracts [Member] Member bsac:FinancialLiabilitiesDerivativeContractsCategoryMember
2110 Interbank Borrowings [Member] Member bsac:InterbankBorrowingsMember
2111 Issue debt instruments [Member] Member bsac:IssueDebtInstrumentsMember
2112 Other financial liabilities [Member] Member bsac:OtherFinancialLiabilitiesMember
2113 Guarantees received (margin accounts) [Member] Member bsac:FinancialLiabilitiesGuaranteesReceivedMarginAccountsCategoryMember
2114 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2115 Total financial assets Concept (Monetary) As Of Debit ifrs-full:Assets
2116 Total financial liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
2117 00000177 - Disclosure - PROVISIONS AND CONTINGENT PROVISIONS (Details) Network

*

*

 http://santander.cl/role/ProvisionsAndContingentProvisionsDetails
2118 Implied Table Table

*

*

 implied:Table
2119 Provisions [abstract] Abstract ifrs-full:ProvisionsAbstract
2120 Provisions for personnel salaries and expenses Concept (Monetary) As Of Credit bsac:ProvisionsForPersonnelSalariesAndExpenses
2121 Provisions for mandatory dividends Concept (Monetary) As Of Credit bsac:ProvisionsForMandatoryDividends
2122 Provisions for contingent loan risk Concept (Monetary) As Of Credit bsac:ProvisionsForContingentLoanRisk
2123 Other Concept (Monetary) As Of Credit bsac:ProvisionsForContingenciesAssociatedWithAdministrativeClaimsAndLeasingContracts
2124 Total Concept (Monetary) As Of Credit ifrs-full:Provisions
2125 00000178 - Disclosure - PROVISIONS AND CONTINGENT PROVISIONS (Details 1) Network

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*

 http://santander.cl/role/ProvisionsAndContingentProvisionsDetails1
2126 Disclosure of other provisions [table] Table

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*

 ifrs-full:DisclosureOfOtherProvisionsTable
2127 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
2128 Other provisions [member] Member ifrs-full:OtherProvisionsMember
2129 Personnel Salaries And Expenses [Member] Member bsac:PersonnelSalariesAndExpensesOfProvisionsMember
2130 Mandatory Dividends [Member] Member bsac:MandatoryDividendsOfProvisionsMember
2131 Contingencies [Member] Member bsac:ContingenciesOfProvisionsMember
2132 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
2133 Balance at beginning Concept (Monetary) As Of Credit ifrs-full:Provisions
2134 Provisions established Concept (Monetary) For Period Credit ifrs-full:NewProvisionsOtherProvisions
2135 Application of provisions Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInExistingProvisionsOtherProvisions
2136 Provisions released Concept (Monetary) For Period Credit bsac:ProvisionsReleased1
2137 Reclassifications Concept (Monetary) For Period Debit ifrs-full:UnusedProvisionReversedOtherProvisions
2138 Other Concept (Monetary) For Period Credit bsac:ProvisionsUsedOtherProvisions
2139 Balance at end Concept (Monetary) As Of Credit ifrs-full:Provisions
2140 00000179 - Disclosure - PROVISIONS AND CONTINGENT PROVISIONS (Details 2) Network

*

*

 http://santander.cl/role/ProvisionsAndContingentProvisionsDetails2
2141 Implied Table Table

*

*

 implied:Table
2142 Provisions [abstract] Abstract ifrs-full:ProvisionsAbstract
2143 Provision for seniority compensation Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationForSeniorityCompensation
2144 Provision for stock-based personnel benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
2145 Provision for performance bonds Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationForPerformanceBonds
2146 Provision for vacations Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationForVacations
2147 Provision for other personnel benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationOtherLongtermBenefits
2148 Total Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
2149 00000181 - Disclosure - OTHER LIABILITIES (Details) Network

*

*

 http://santander.cl/role/OtherLiabilitiesDetails
2150 Implied Table Table

*

*

 implied:Table
2151 Other Liabilities Abstract bsac:OtherLiabilitiesDislcosureAbstract
2152 Accounts and notes payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayables
2153 Unearned income Concept (Monetary) As Of Credit bsac:UnearnedIncome
2154 Valuation adjustments by macrohedges Concept (Monetary) As Of Credit bsac:ValuationAdjustmentsByMacrohedges
2155 Guarantees received (margin accounts) Concept (Monetary) As Of Credit bsac:GuaranteesReceivedMarginAccounts
2156 Notes payable through brokerage and simultaneous transactions Concept (Monetary) As Of Credit bsac:NotesPayableThroughBrokerageAndSimultaneousTransactions
2157 Other payable obligations Concept (Monetary) As Of Credit bsac:OtherPayableObligations
2158 Withheld VAT Concept (Monetary) As Of Credit bsac:WithheldVat
2159 Other liabilities Concept (Monetary) As Of Credit bsac:OtherFinancialLiabilities1
2160 Total Concept (Monetary) As Of Credit ifrs-full:OtherNonfinancialLiabilities
2161 00000182 - Disclosure - CONTINGENCIES AND COMMITMENTS (Details) Network

*

*

 http://santander.cl/role/ContingenciesAndCommitmentsDetails
2162 Disclosure of contingent liabilities in business combination [table] Table

*

*

 ifrs-full:DisclosureOfContingentLiabilitiesInBusinessCombinationTable
2163 Classes of contingent liabilities [axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
2164 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
2165 Contingent Loans [Member] Member bsac:ContingentLoansContingentLiabilityMember
2166 Disclosure of contingent liabilities in business combination [line items] LineItems ifrs-full:DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems
2167 Letters of credit issued Concept (Monetary) As Of Debit bsac:LettersOfCreditIssuedContractualObligations
2168 Foreign letters of credit confirmed Concept (Monetary) As Of Debit bsac:ForeignLettersOfCreditConfirmedContractualObligations
2169 Performance guarantee Concept (Monetary) As Of Debit bsac:GuaranteesContractualObligations
2170 Personal guarantees Concept (Monetary) As Of Debit bsac:PersonalGuaranteesContractualObligations
2171 Total contingent liabilities Concept (Monetary) As Of Debit bsac:GrossContractualObligationsToIssueLoans
2172 Available on demand credit lines Concept (Monetary) As Of Debit bsac:AvailableOnDemandCreditLines
2173 Other irrevocable credit commitments Concept (Monetary) As Of Debit bsac:OtherIrrevocableCreditCommitments
2174 Total loan commit ment Concept (Monetary) As Of Credit bsac:ContingentsLiabilitiesRegonisedLoansLossAllowance
2175 Total Concept (Monetary) As Of Debit bsac:TotalContractualObligationsToIssueLoans
2176 00000183 - Disclosure - CONTINGENCIES AND COMMITMENTS (Details 1) Network

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*

 http://santander.cl/role/ContingenciesAndCommitmentsDetails1
2177 Disclosure of contingent liabilities in business combination [table] Table

*

*

 ifrs-full:DisclosureOfContingentLiabilitiesInBusinessCombinationTable
2178 Classes of contingent liabilities [axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
2179 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
2180 Held Securities [Member] Member bsac:HeldSecuritiesContingentLiabilityMember
2181 Disclosure of contingent liabilities in business combination [line items] LineItems ifrs-full:DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems
2182 Third party operations Abstract bsac:ThirdPartyOperationsSecuritiesHoldsAbstract
2183 Collections Concept (Monetary) As Of Debit bsac:ThirdPartyOperationsOfCollectionsSecuritiesHolds
2184 Assets from third parties managed by the Bank and its affiliates Concept (Monetary) As Of Debit bsac:ThirdPartyOperationsOfAssetsSecuritiesHolds
2185 Subtotal Concept (Monetary) As Of Debit bsac:ThirdPartyOperationsSecuritiesHolds
2186 Custody of securities Abstract bsac:CustodyOfSecuritiesHoldsAbstract
2187 Securities held in custody Concept (Monetary) As Of Debit bsac:SecuritiesHeldInCustody
2188 Securities held in custody deposited in other entity Concept (Monetary) As Of Debit bsac:SecuritiesHeldInCustodyDepositedInOtherEntity
2189 Issued securities held in custody Concept (Monetary) As Of Debit bsac:IssuedSecuritiesHeldInCustody
2190 Subtotal Concept (Monetary) As Of Debit bsac:CustodyOfSecuritiesSecuritiesHolds
2191 Total Concept (Monetary) As Of Debit bsac:TotalHeldSecurities
2192 00000184 - Disclosure - CONTINGENCIES AND COMMITMENTS (Details Narrative) Network

*

*

 http://santander.cl/role/ContingenciesAndCommitmentsDetailsNarrative
2193 Disclosure of contingent liabilities in business combination [table] Table

*

*

 ifrs-full:DisclosureOfContingentLiabilitiesInBusinessCombinationTable
2194 Classes of contingent liabilities [axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
2195 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
2196 Legal Proceedings Contingent Liability [Member] Member ifrs-full:LegalProceedingsContingentLiabilityMember
2197 Contingent Liability For Guarantees [Member] Member ifrs-full:ContingentLiabilityForGuaranteesMember
2198 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
2199 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
2200 Subsidiaries [Member] Member bsac:Subsidiaries1Member
2201 Currency [Axis] Axis srt:CurrencyAxis
2202 All Currencies [Domain] Member currency:AllCurrenciesDomain
2203 USD [Member] Member currency:USD
2204 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
2205 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
2206 Non-adjusting Events After Reporting Period [Member] Member bsac:NonadjustingEvents1Member
2207 Disclosure of contingent liabilities in business combination [line items] LineItems ifrs-full:DisclosureOfContingentLiabilitiesInBusinessCombinationLineItems
2208 Estimated financial effect of contingent liabilities Concept (Monetary) As Of ifrs-full:EstimatedFinancialEffectOfContingentLiabilities
2209 Insurance policy cover amount for bank and subsidiaries Concept (Monetary) As Of Debit bsac:InsurancePolicyCoverAmount
2210 Assets from third parties managed by the Bank and its affiliates Concept (Monetary) As Of Debit bsac:AssetsFromThirdPartiesManagedByBankAndItsAffiliates
2211 00000185 - Disclosure - EQUITY (Details) Network

*

*

 http://santander.cl/role/EquityDetails
2212 Implied Table Table

*

*

 implied:Table
2213 EQUITY Abstract ifrs-full:EquityAbstract
2214 Issued as of beginning of period Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
2215 Issuance of paid shares Concept (Shares) For Period bsac:IssuanceOfPaidShares
2216 Issuance of outstanding shares Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfSharesOutstanding
2217 Stock options exercised Concept (Shares) For Period bsac:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement1
2218 Issued as of end of period Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
2219 00000186 - Disclosure - EQUITY (Details 1) Network

*

*

 http://santander.cl/role/EquityDetails1
2220 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
2221 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2222 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2223 Santander Chile Holding S.A. [Member] Member bsac:SantanderChileHoldingSAMember
2224 Teatinos Siglo XXI Inversiones Limitada [Member] Member bsac:TeatinosSigloXxiInversionesLimitadaMember
2225 The Bank New York Mellon [Member] Member bsac:TheBankNewYorkMellonMember
2226 Banks On Behalf Of Third Parties [Member] Member bsac:BanksOnBehalfOfThirdPartiesMember
2227 Pension Funds (AFP) On Behalf Of Third Parties [Member] Member bsac:PensionFundsAFPOnBehalfOfThirdPartiesMember
2228 Stock Brokers On Behalf Of Third Parties [Member] Member bsac:StockBrokersOnBehalfOfThirdPartiesMember
2229 Other Minority Holders [Member] Member bsac:OtherMinorityHoldersMember
2230 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
2231 Shares Concept (Shares) As Of bsac:NumberOfSharesOutstandingGross
2232 American Depository Receipts (ADR) Concept (Shares) As Of bsac:AmericanDepositoryReceipts
2233 Total Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
2234 Percentage of equity holding Concept (Percent) As Of bsac:ProportionOfOwnershipInterests
2235 00000187 - Disclosure - EQUITY (Details 2) Network

*

*

 http://santander.cl/role/EquityDetails2
2236 Implied Table Table

*

*

 implied:Table
2237 EQUITY Abstract ifrs-full:EquityAbstract
2238 Basic earnings per share Abstract ifrs-full:BasicEarningsPerShareAbstract
2239 Total attributable to the shareholders of the Bank Concept (Monetary) For Period Credit bsac:ProfitLossAttributableToOwnersOfParent1
2240 Weighted average number of outstanding shares Concept (Shares) For Period ifrs-full:WeightedAverageShares
2241 Basic earnings per share (in Ch$) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
2242 Diluted earnings per share Abstract ifrs-full:DilutedEarningsPerShareAbstract
2243 Total attributable to the shareholders of the Bank Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects
2244 Weighted average number of outstanding shares Concept (Shares) For Period ifrs-full:WeightedAverageShares
2245 Adjusted number of shares Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
2246 Diluted earnings per share (in Ch$) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
2247 00000188 - Disclosure - EQUITY (Details 3) Network

*

*

 http://santander.cl/role/EquityDetails3
2248 Implied Table Table

*

*

 implied:Table
2249 EQUITY Abstract ifrs-full:EquityAbstract
2250 Debt instruments at FVOCI Abstract bsac:DebtInstrumentAssetsAtFairValueThroughOtherComprehensiveIncome
2251 As of beginning of period Concept (Monetary) As Of Debit bsac:CurrentFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome2
2252 Gain (losses) on the re-measurement of debt instruments at FVOCI, before tax Concept (Monetary) For Period Credit bsac:GainLossesOnRemeasurementOfDebtInstrumentsAtFvociBeforeTax
2253 Recycling from other comprehensive income to income for the year Concept (Monetary) For Period Debit bsac:RecyclingFromOtherComprehensiveIncomeToIncomeForYear
2254 Available for sale investments Abstract ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeAbstract
2255 As of beginning of period Concept (Monetary) As Of Debit bsac:FinancialAssetsAtFairValueThroughOtherComprehensiveIncome1
2256 Gain (losses) on the re-measurement of available for sale investments, before tax Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax
2257 Recycling from other comprehensive income to income for the year Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax
2258 Subtotals Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAssets
2259 As of end of period Concept (Monetary) As Of Debit bsac:FinancialAssetsAtFairValueThroughOtherComprehensiveIncome1
2260 Cash flow hedges Abstract ifrs-full:CashFlowHedgesAbstract
2261 As of beginning of period Concept (Monetary) As Of Credit bsac:OtherComprehensiveIncomeCashFlowHedges
2262 Gains (losses) on the re-measurement of cash flow hedges, before tax Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax
2263 Recycling adjustments on cash flow hedges, before tax Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax
2264 Amounts removed from equity and included in carrying amount of non-financial asset (liability) which acquisition or incurrence was hedged as a highly probable transaction Concept (Monetary) For Period Debit ifrs-full:AmountsRemovedFromEquityAndIncludedInCarryingAmountOfNonfinancialAssetLiabilityWhoseAcquisitionOrIncurrenceWasHedgedHighlyProbableForecastTransactionBeforeTax
2265 Subtotals Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges
2266 As of end of period Concept (Monetary) As Of Credit bsac:OtherComprehensiveIncomeCashFlowHedges
2267 Other comprehensive income, before taxes Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTax
2268 Income tax related to other comprehensive income components Abstract ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract
2269 Income tax relating to debt instruments at FVOCI Concept (Monetary) For Period Debit bsac:IncomeTaxRelatingToDebtInstrumentsAtFvoci
2270 Income tax relating to available for sale investments Concept (Monetary) For Period Debit bsac:IncomeTaxRelatingToAvailableforsaleOfOtherComprehensiveIncome
2271 Income tax relating to cash flow hedges Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToHedgesOfInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome
2272 Total Concept (Monetary) For Period Debit bsac:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss1
2273 Other comprehensive income, net of tax Concept (Monetary) For Period Credit bsac:ComprehensiveIncomeReclassifiedToProfitOrLossNetOfTax
2274 Attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
2275 Shareholders of the Bank Concept (Monetary) For Period Credit bsac:ComprehensiveIncomeAttributableToOwnersOfParentSubjectToEquity
2276 Non-controlling interest Concept (Monetary) For Period Credit bsac:ComprehensiveIncomeAttributableToNoncontrollingInterestsSubjectToEquity
2277 00000189 - Disclosure - EQUITY (Details Narrative) Network

*

*

 http://santander.cl/role/EquityDetailsNarrative
2278 Implied Table Table

*

*

 implied:Table
2279 EQUITY Abstract ifrs-full:EquityAbstract
2280 Shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
2281 Increase in capital Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
2282 Percentage of capitalization earnings Concept (Percent) As Of bsac:PercentageOfCapitalizationEarnings
2283 Retained earnings to reserves Concept (Monetary) As Of Debit bsac:RetainedEarningsToReservesValue
2284 00000190 - Disclosure - NON-CONTROLLING INTEREST (Details) Network

*

*

 http://santander.cl/role/Non-controllingInterestDetails
2285 Disclosure of subsidiaries [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
2286 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
2287 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
2288 Santander Agente de Valores Limitada [Member] Member bsac:SantanderAgentedeValoresLimitadaMember
2289 Santander S.A. Sociedad Securitizadora [Member] Member bsac:SantanderSASociedadSecuritizadoraMember
2290 Santander Corredores de Bolsa Limitada [Member] Member bsac:SantanderCorredoresdeBolsaLimitadaMember
2291 Santander Corredora de Seguros Limitada [Member] Member bsac:SantanderCorredoradeSegurosLimitadaMember
2292 Subsidiaries [Member] Member bsac:TotalSubsidiariesMember
2293 Bansa Santander S.A. [Member] Member bsac:SubsidiariesWithMaterialNoncontrollingInterests1Member
2294 Santander Gestion de Recaudacion y Cobranzas Limitada [Member] Member bsac:SubsidiariesWithMaterialNoncontrollingInterests2Member
2295 Total Entities Controlled Through Other Considerations [Member] Member ifrs-full:SubsidiariesWithMaterialNoncontrollingInterestsMember
2296 Multinegocios S.A [Member] Member bsac:MultinegociosSAMember
2297 Multinegocios S.A. [Member] Member bsac:SubsidiariesWithMaterialNoncontrollingInterests3Member
2298 Servicios Administrativos Y Financieros Limitada [Member] Member bsac:ServiciosAdministrativosYFinancierosLimitadaMember
2299 Servicios Administrativos y Financieros Limitada. [Member] Member bsac:SubsidiariesWithMaterialNoncontrollingInterests4Member
2300 Multiservicios De Negocios Limitada [Member] Member bsac:MultiserviciosDeNegociosLimitadaMember
2301 Multiservicios de Negocios Limitada. [Member] Member bsac:SubsidiariesWithMaterialNoncontrollingInterests5Member
2302 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
2303 Non-controlling Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
2304 Equity Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
2305 Income Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
2306 Other comprehensive income Abstract ifrs-full:OtherComprehensiveIncomeAbstract
2307 Debt instruments at FVOCI Concept (Monetary) For Period Credit bsac:DebtInstrumentsAtFairValueOtherComprehensiveIncome
2308 Available for sale investments Concept (Monetary) For Period Credit bsac:ComprehensiveIncomeAvailableForSaleInvestmentsAttributableToNoncontrollingInterests
2309 Deferred tax Concept (Monetary) For Period Credit bsac:ComprehensiveIncomeDeferredTaxAttributableToNoncontrollingInterests
2310 Total other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeAttributableToNoncontrollingInterests
2311 Comprehensive income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
2312 00000191 - Disclosure - NON-CONTROLLING INTEREST (Details 1) Network

*

*

 http://santander.cl/role/Non-controllingInterestDetails1
2313 Disclosure of subsidiaries [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
2314 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
2315 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
2316 Santander Corredora de Seguros Limitada [Member] Member bsac:SantanderCorredoradeSegurosLimitadaMember
2317 Santander Corredores de Bolsa Limitada [Member] Member bsac:SantanderCorredoresdeBolsaLimitadaMember
2318 Santander Agente de Valores Limitada [Member] Member bsac:SantanderAgentedeValoresLimitadaMember
2319 Santander S.A. Sociedad Securitizadora [Member] Member bsac:SantanderSASociedadSecuritizadoraMember
2320 Santander Gestion de Recaudacion y Cobranzas Limitada [Member] Member bsac:SubsidiariesWithMaterialNoncontrollingInterests2Member
2321 Bansa Santander S.A. [Member] Member bsac:SubsidiariesWithMaterialNoncontrollingInterests1Member
2322 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
2323 Assets Concept (Monetary) As Of Debit bsac:AssetsAttributableToNoncontrollingInterests
2324 Liabilities Concept (Monetary) As Of Credit bsac:LiabilitiesAttributableToNoncontrollingInterests
2325 Capital Concept (Monetary) For Period Credit bsac:CapitalAttributableToNoncontrollingInterests
2326 Net income Concept (Monetary) As Of Credit bsac:NetIncomeAttributableToNoncontrollingInterests
2327 00000192 - Disclosure - INTEREST INCOME (Details) Network

*

*

 http://santander.cl/role/InterestIncomeDetails
2328 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2329 Classes of financial assets [Axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
2330 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
2331 Resale Agreements [Member] Member bsac:ResaleAgreementsMember
2332 Interbank Loan [Member] Member bsac:InterbankLoanMember
2333 Commercial Loans [Member] Member bsac:CommercialLoansMember
2334 Mortgage Loans [Member] Member bsac:MortgageLoansMember
2335 Consumer Loans [Member] Member ifrs-full:ConsumerLoansMember
2336 Investment Instruments [Member] Member bsac:InvestmentInstrumentsMember
2337 Other Interest Income [Member] Member bsac:OtherInterestIncomeMember
2338 Hedged items [axis] Axis ifrs-full:HedgedItemsAxis
2339 Hedged items [member] Member ifrs-full:HedgedItemsMember
2340 Hedged Of Interest [Member] Member bsac:HedgedOfInterestMember
2341 Hedged Of Inflation Adjustments [Member] Member bsac:HedgedOfInflationAdjustmentsMember
2342 Hedged Of Prepaid Fees [Member] Member bsac:HedgedOfPrepaidFeesMember
2343 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2344 Interest income not including income from hedge accounting Concept (Monetary) For Period Credit bsac:InterestIncomeLessIncomeFromHedgeAccounting
2345 00000193 - Disclosure - INTEREST INCOME (Details 1) Network

*

*

 http://santander.cl/role/InterestIncomeDetails1
2346 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2347 Classes of financial assets [Axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
2348 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
2349 Demand Deposits [Member] Member bsac:DemandDeposits1Member
2350 Repurchase Agreements [Member] Member bsac:RepurchaseAgreements1Member
2351 Time Deposits And Liabilities [Member] Member bsac:TimeDepositsAndLiabilitiesMember
2352 Interbank Loan [Member] Member bsac:InterbankLoanMember
2353 Issued Debt Instruments [Member] Member bsac:IssuedDebtInstrumentsMember
2354 Other financial liabilities [Member] Member bsac:OtherFinancialLiabilitiesMember
2355 Other Interest Expense [Member] Member bsac:OtherInterestExpenseMember
2356 Hedged items [axis] Axis ifrs-full:HedgedItemsAxis
2357 Hedged items [member] Member ifrs-full:HedgedItemsMember
2358 Hedged Of Interest [Member] Member bsac:HedgedOfInterestMember
2359 Hedged Of Inflation Adjustments [Member] Member bsac:HedgedOfInflationAdjustmentsMember
2360 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2361 Interest expense not including expenses from hedge accounting Concept (Monetary) For Period Debit bsac:InterestExpenseLessExpenseFromHedgeAccounting
2362 00000194 - Disclosure - INTEREST INCOME (Details 2) Network

*

*

 http://santander.cl/role/InterestIncomeDetails2
2363 Implied Table Table

*

*

 implied:Table
2364 Interest Income Abstract bsac:InterestIncomeAbstract
2365 Interest income not including income from hedge accounting Concept (Monetary) For Period Credit bsac:InterestIncomeLessIncomeFromHedgeAccounting
2366 Interest expense not including expense from hedge accounting Concept (Monetary) For Period Debit bsac:InterestExpenseLessExpenseFromHedgeAccounting
2367 Net Interest income (expense) from hedge accounting Concept (Monetary) For Period Credit bsac:NetInterestIncomeExpenseFromHedgeAccounting
2368 Hedge accounting (net) Concept (Monetary) For Period Debit bsac:HedgeAccountingNet
2369 Total net interest income Concept (Monetary) For Period Credit ifrs-full:InterestIncomeOnFinancialAssetsDesignatedAtFairValueThroughProfitOrLoss
2370 00000195 - Disclosure - FEES AND COMMISSIONS (Details) Network

*

*

 http://santander.cl/role/FeesAndCommissionsDetails
2371 Implied Table Table

*

*

 implied:Table
2372 Fees And Commissions Abstract bsac:FeesAndCommissionsDislcosureAbstract
2373 Fee and commission income Abstract ifrs-full:FeeAndCommissionIncomeAbstract
2374 Fees and commissions for lines of credits and overdrafts Concept (Monetary) For Period Credit bsac:FeesAndCommissionsForLinesOfCreditsAndOverdrafts
2375 Fees and commissions for guarantees and letters of credit Concept (Monetary) For Period Credit bsac:FeesAndCommissionsForGuaranteesAndLettersOfCredit
2376 Fees and commissions for card services Concept (Monetary) For Period Credit bsac:FeesAndCommissionsForCardServices
2377 Fees and commissions for management of accounts Concept (Monetary) For Period Credit bsac:FeesAndCommissionsForManagementOfAccounts
2378 Fees and commissions for collections and payments Concept (Monetary) For Period Credit bsac:FeesAndCommissionsForCollectionsAndPayments
2379 Fees and commissions for intermediation and management of securities Concept (Monetary) For Period Credit bsac:FeesAndCommissionsForIntermediationAndManagementOfSecurities
2380 Insurance brokerage fees Concept (Monetary) For Period Credit ifrs-full:BrokerageFeeIncome
2381 Office banking Concept (Monetary) For Period Credit bsac:OfficeBanking
2382 Fees for other services rendered Concept (Monetary) For Period Credit bsac:FeesForOtherServicesRendered
2383 Other fees earned Concept (Monetary) For Period Credit ifrs-full:OtherFeeAndCommissionIncome
2384 Total Concept (Monetary) For Period Credit ifrs-full:FeeAndCommissionIncome
2385 Fee and commission expense Abstract ifrs-full:FeeAndCommissionExpenseAbstract
2386 Compensation for card operation Concept (Monetary) For Period Debit bsac:CompensationForCardOperation
2387 Fees and commissions for securities transactions Concept (Monetary) For Period Debit bsac:FeesAndCommissionsForSecuritiesTransactions
2388 Office banking Concept (Monetary) For Period Debit bsac:OfficeBanking1
2389 Other fees Concept (Monetary) For Period Debit ifrs-full:OtherFeeAndCommissionExpense
2390 Total Concept (Monetary) For Period Debit ifrs-full:FeeAndCommissionExpense
2391 Net fees and commissions income Concept (Monetary) For Period Credit ifrs-full:FeeAndCommissionIncomeExpense
2392 00000197 - Disclosure - NET INCOME (EXPENSE) FROM FINANCIAL OPERATIONS (Details) Network

*

*

 http://santander.cl/role/NetIncomeExpenseFromFinancialOperationsDetails
2393 Implied Table Table

*

*

 implied:Table
2394 Net Income Expense From Financial Operations Abstract bsac:NetIncomeExpenseFromFinancialOperationsAbstract
2395 Income (expense) from financial operations Abstract ifrs-full:TradingIncomeExpenseAbstract
2396 Trading derivatives Concept (Monetary) For Period Credit ifrs-full:TradingIncomeExpenseOnDerivativeFinancialInstruments
2397 Trading investments Concept (Monetary) For Period Credit ifrs-full:TradingIncomeExpenseOnEquityInstruments
2398 Net gains on financial assets at fair value through profit or loss Concept (Monetary) For Period Credit bsac:NetGainsOnFinancialAssetsAtFairValueThroughProfitOrLoss
2399 Net gains on derecognition of financial assets measured at amortised cost Concept (Monetary) For Period Credit bsac:NetGainsOnDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost
2400 Sale of loans and accounts receivables from customers Abstract bsac:TradingIncomeExpenseOnSaleOfLoansAndAccountsReceivablesFromCustomersAbstract
2401 Current portfolio Concept (Monetary) For Period Credit bsac:TradingIncomeExpenseOnCurrentPortfolio
2402 Charged-off portfolio Concept (Monetary) For Period Credit bsac:TradingIncomeExpenseOnChargedOffPortfolio
2403 Available for sale investments Concept (Monetary) For Period Credit bsac:TradingIncomeExpenseOnAvailableForSaleInvestments
2404 Repurchase of issued bonds Concept (Monetary) For Period Credit bsac:TradingIncomeExpenseOnRepurchaseOfIssuedBonds
2405 Other income (expense) from financial operations Concept (Monetary) For Period Credit ifrs-full:OtherTradingIncomeExpense
2406 Total income (expense) Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
2407 00000198 - Disclosure - NET FOREIGN EXCHANGE GAIN (LOSS) (Details) Network

*

*

 http://santander.cl/role/NetForeignExchangeGainLossDetails
2408 Implied Table Table

*

*

 implied:Table
2409 Net Foreign Exchange Gain Abstract bsac:NetForeignExchangeGainLoss1Abstract
2410 Net foreign exchange gain (loss) Abstract bsac:NetForeignExchangeGainLossAbstract
2411 Net profit (loss) from currency exchange differences Concept (Monetary) For Period Credit bsac:NetProfitLossFromCurrencyExchangeDifferences
2412 Hedging derivatives Concept (Monetary) For Period Credit bsac:HedgingDerivatives
2413 Income from assets indexed to foreign currency Concept (Monetary) For Period Credit bsac:IncomeFromAssetsIndexedToForeignCurrency
2414 Income from liabilities indexed to foreign currency Concept (Monetary) For Period Credit bsac:IncomeFromLiabilitiesIndexedToForeignCurrency
2415 Total Concept (Monetary) For Period Credit ifrs-full:NetForeignExchangeGain
2416 00000200 - Disclosure - EXPECTED CREDIT LOSSESS ALLOWANCE (Details 1) Network

*

*

 http://santander.cl/role/ExpectedCreditLossessAllowanceDetails1
2417 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2418 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
2419 Other provisions [member] Member ifrs-full:OtherProvisionsMember
2420 Provisions for Loan Losses [Member] Member bsac:ProvisionsForLoanLossesMember
2421 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
2422 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
2423 Loans to Customers [Member] Member bsac:LoansToCustomersMember
2424 Impairment of financial assets [axis] Axis ifrs-full:ImpairmentOfFinancialAssetsAxis
2425 Entity's total for impairment of financial assets [member] Member ifrs-full:EntitysTotalForImpairmentOfFinancialAssetsMember
2426 Individual Allowance [Member] Member ifrs-full:FinancialAssetsIndividuallyAssessedForCreditLossesMember
2427 Group Allowance [Member] Member ifrs-full:FinancialAssetsCollectivelyAssessedForCreditLossesMember
2428 Classes of financial assets [Axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
2429 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
2430 Interbank Loan [Member] Member bsac:InterbankLoanMember
2431 Commercial Loans [Member] Member bsac:CommercialLoansMember
2432 Mortgage Loans [Member] Member bsac:MortgageLoansMember
2433 Consumer Loans [Member] Member ifrs-full:ConsumerLoansMember
2434 Contingent Loan [Member] Member bsac:ContingentLoanMember
2435 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2436 Charged-off individually significant loans Concept (Monetary) For Period Credit bsac:ChargedoffIndividuallySignificantLoans
2437 Provisions established Concept (Monetary) For Period Credit bsac:ProvisionsEstablished1
2438 Total provisions and charge-offs Concept (Monetary) For Period Credit bsac:ProvisionsAndChargeoffs
2439 Provisions released Concept (Monetary) For Period Credit bsac:ProvisionsReleased1
2440 Recovery of loans previously charged off Concept (Monetary) For Period Credit bsac:RecoveryOfLoansPreviouslyChargedOff
2441 Net charge offs of individually significant loans Concept (Monetary) For Period Credit bsac:NetChargeOffsOfIndividuallySignificantLoans
2442 00000201 - Disclosure - EXPECTED CREDIT LOSSESS ALLOWANCE (Details 2) Network

*

*

 http://santander.cl/role/ExpectedCreditLossessAllowanceDetails2
2443 Implied Table Table

*

*

 implied:Table
2444 Expected Credit Lossess Allowance Abstract bsac:ExpectedCreditLossessAllowanceAbstract
2445 Charge-off of loans Concept (Monetary) For Period Credit bsac:ChargedoffIndividuallySignificantLoans
2446 Provision applied Concept (Monetary) For Period Credit bsac:ProvisionsAndChargeoffs
2447 Net charge offs of individually significant loans Concept (Monetary) For Period Credit bsac:NetChargeOffsOfIndividuallySignificantLoans
2448 00000202 - Disclosure - PERSONNEL SALARIES AND EXPENSES (Details) Network

*

*

 http://santander.cl/role/PersonnelSalariesAndExpensesDetails
2449 Implied Table Table

*

*

 implied:Table
2450 Personnel Salaries And Expenses Abstract bsac:PersonnelSalariesAndExpensesAbstract
2451 Personnel compensation Concept (Monetary) For Period Debit bsac:EmployeeBenefitsPersonnelCompensationExpense
2452 Bonuses or gratifications Concept (Monetary) For Period Debit bsac:EmployeeBenefitsBonusesOrGgratificationsExpense
2453 Stock-based benefits Concept (Monetary) For Period Debit bsac:EmployeeBenefitsStockBasedBenefitsExpense
2454 Seniority compensation Concept (Monetary) For Period Debit bsac:EmployeeBenefitsSeniorityCompensationExpense
2455 Pension plans Concept (Monetary) For Period Debit bsac:EmployeeBenefitsPensionPlansExpense
2456 Training expenses Concept (Monetary) For Period Debit bsac:EmployeeBenefitsTrainingExpenses
2457 Day care and kindergarten Concept (Monetary) For Period Debit bsac:EmployeeBenefitsDayCareAndKindergartenExpense
2458 Health funds Concept (Monetary) For Period Debit bsac:EmployeeBenefitsHealthFundsExpenses
2459 Welfare funds Concept (Monetary) For Period Debit bsac:EmployeeBenefitsTrainingWelfareFundsExpenses
2460 Other personnel expenses Concept (Monetary) For Period Debit bsac:EmployeeBenefitsOtherPersonnelExpense
2461 Total Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
2462 00000203 - Disclosure - ADMINISTRATIVE EXPENSES (Details) Network

*

*

 http://santander.cl/role/AdministrativeExpensesDetails
2463 Implied Table Table

*

*

 implied:Table
2464 Administrative Expenses Abstract bsac:AdministrativeExpensesAbstract
2465 General administrative expenses Abstract bsac:GeneralAdministrativeExpensesAbstract
2466 Maintenance and repair of property, plant and equipment Concept (Monetary) For Period Debit bsac:MaintenanceAndRepairOfPropertyPlantAndEquipment
2467 Office lease Concept (Monetary) For Period Debit bsac:OfficeLease
2468 Equipment lease Concept (Monetary) For Period Debit bsac:EquipmentLease
2469 Insurance payments Concept (Monetary) For Period Debit bsac:InsurancePayments
2470 Office supplies Concept (Monetary) For Period Debit bsac:OfficeSupplies
2471 IT and communication expenses Concept (Monetary) For Period Debit bsac:ITAndCommunicationExpenses
2472 Heating, and other utilities Concept (Monetary) For Period Debit bsac:HeatingAndOtherUtilities
2473 Security and valuables transport services Concept (Monetary) For Period Debit bsac:SecurityAndValuablesTransportServices
2474 Representation and personnel travel expenses Concept (Monetary) For Period Debit bsac:RepresentationAndPersonnelTravelExpenses
2475 Judicial and notarial expenses Concept (Monetary) For Period Debit bsac:JudicialAndNotarialExpenses
2476 Fees for technical reports and auditing Concept (Monetary) For Period Debit bsac:FeesForTechnicalReportsAndAuditing
2477 Other general administrative expenses Concept (Monetary) For Period Debit bsac:OtherGeneralAdministrativeExpenses
2478 General administrative expenses Concept (Monetary) For Period Debit bsac:GeneralAdministrativeExpenses
2479 Outsourced services Abstract bsac:OutsourcedServicesAbstract
2480 Data processing Concept (Monetary) For Period Debit bsac:DataProcessing
2481 Products sale Concept (Monetary) For Period Debit bsac:ProductsSale
2482 Archive services Concept (Monetary) For Period Debit bsac:ArchiveServices
2483 Valuation services Concept (Monetary) For Period Debit bsac:ValuationServices
2484 Outsourcing Concept (Monetary) For Period Debit bsac:OutsourcingServices
2485 Other Concept (Monetary) For Period Debit bsac:OtherServices
2486 Outsourced services Concept (Monetary) For Period Debit bsac:OutsourcedServices
2487 Board expenses Concept (Monetary) For Period Debit bsac:BoardExpenses
2488 Marketing expenses Concept (Monetary) For Period Debit bsac:MarketingExpenses
2489 Taxes, payroll taxes, and contributions Abstract bsac:TaxesPayrollTaxesAndContributionsAbstract
2490 Real estate taxes Concept (Monetary) For Period Debit bsac:RealEstateTaxesContributions
2491 Patents Concept (Monetary) For Period Debit bsac:Patents
2492 Other taxes Concept (Monetary) For Period Debit bsac:OtherTaxes
2493 Contributions to SBIF Concept (Monetary) For Period Debit bsac:ContributionsToSbif
2494 Taxes, payroll taxes, and contributions Concept (Monetary) For Period Debit bsac:TaxesPayrollTaxesandcontributions
2495 Total Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
2496 00000204 - Disclosure - DEPRECIATION, AMORTIZATION, AND IMPAIRMENT (Details) Network

*

*

 http://santander.cl/role/DepreciationAmortizationAndImpairmentDetails
2497 Implied Table Table

*

*

 implied:Table
2498 Depreciation Amortization And Impairment Abstract bsac:DepreciationAmortizationAndImpairmentAbstract
2499 Depreciation and amortization Abstract ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossAbstract
2500 Depreciation of property, plant, and equipment Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
2501 Amortization of Intangible assets Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
2502 Total depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
2503 Impairment of property, plant, and equipment Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
2504 Impairment of intangibles Concept (Monetary) For Period Debit bsac:ImpairmentOfIntangibles
2505 Total Concept (Monetary) For Period Debit ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
2506 00000205 - Disclosure - OTHER OPERATING INCOME AND EXPENSES (Details) Network

*

*

 http://santander.cl/role/OtherOperatingIncomeAndExpensesDetails
2507 Implied Table Table

*

*

 implied:Table
2508 Other Operating Income And Expenses Abstract bsac:OtherOperatingIncomeAndExpensesAbstract
2509 Income from assets received in lieu of payment Concept (Monetary) For Period Credit bsac:IncomeFromAssetsReceivedInLieuOfPayment
2510 Income from sale of investments in other companies Concept (Monetary) For Period Credit bsac:IncomeFromSaleOfInvestmentsInOtherCompanies
2511 Release of contingencies provisions Concept (Monetary) For Period Credit bsac:ReleasedOfContingenciesProvisions
2512 Other income Concept (Monetary) For Period Credit bsac:OtherOperatingIncomeGross
2513 Leases Concept (Monetary) For Period Credit bsac:Leases
2514 Income from sale of property, plant and equipment Concept (Monetary) For Period Credit bsac:IncomeFromSaleOfPropertyPlantAndEquipment
2515 Recovery of provisions for contingencies Concept (Monetary) For Period Credit bsac:RecoveryOfProvisionsForContingencies
2516 Compensation from insurance companies due to damages Concept (Monetary) For Period Credit bsac:CompensationFromInsuranceCompaniesDueToDamages
2517 Other Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
2518 Total Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
2519 00000206 - Disclosure - OTHER OPERATING INCOME AND EXPENSES (Details 1) Network

*

*

 http://santander.cl/role/OtherOperatingIncomeAndExpensesDetails1
2520 Implied Table Table

*

*

 implied:Table
2521 Other Operating Income And Expenses Abstract bsac:OtherOperatingIncomeAndExpensesAbstract
2522 Allowances and expenses for assets received in lieu of payment Concept (Monetary) For Period Credit bsac:AllowancesAndExpensesForAssetsReceivedInLieuOfPayment
2523 Provision on assets received in lieu of payment Concept (Monetary) For Period Credit bsac:ProvisionOnAssetsReceivedInLieuOfPayment
2524 Expenses for maintenance of assets received in lieu of payment Concept (Monetary) For Period Credit bsac:ExpensesForMaintenanceOfAssetsReceivedInLieuOfPayment
2525 Credit card expenses Concept (Monetary) For Period Credit bsac:CreditCardExpenses
2526 Customer services Concept (Monetary) For Period Credit bsac:CustomerServices
2527 Other expenses Concept (Monetary) For Period Credit bsac:OtherOperatingExpensesGross
2528 Operating charge-offs Concept (Monetary) For Period Credit bsac:OperatingChargeOffs
2529 Life insurance and general product insurance policies Concept (Monetary) For Period Credit bsac:LifeInsuranceAndGeneralProductInsurancePolicies
2530 Additional tax on expenses paid overseas Concept (Monetary) For Period Credit bsac:AdditionalTaxOnExpensesPaidOverseas
2531 Provisions for contingencies Concept (Monetary) For Period Debit bsac:ProvisionsForContingencies
2532 Retail association payment Concept (Monetary) For Period Debit bsac:RetailAssociationPayment
2533 Other Concept (Monetary) For Period Debit ifrs-full:MiscellaneousOtherOperatingExpense
2534 Total Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByFunction
2535 00000207 - Disclosure - TRANSACTIONS WITH RELATED PARTIES (Details) Network

*

*

 http://santander.cl/role/TransactionsWithRelatedPartiesDetails
2536 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2537 Classes of financial assets [Axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
2538 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
2539 Commercial Loans [Member] Member bsac:CommercialLoansMember
2540 Mortgage Loans [Member] Member ifrs-full:MortgagesMember
2541 Consumer Loans [Member] Member ifrs-full:ConsumerLoansMember
2542 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2543 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2544 Companies Of The Group [Member] Member bsac:SantanderGroupCompaniesMember
2545 Associated Companies [Member] Member ifrs-full:AssociatesMember
2546 Key Personnel [Member] Member ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
2547 Other [Member] Member ifrs-full:OtherRelatedPartiesMember
2548 Continuing involvement in derecognised financial assets by type of instrument [axis] Axis ifrs-full:ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis
2549 Types of instrument [member] Member ifrs-full:TypesOfInstrumentMember
2550 Personal guarantees [Member] Member bsac:PersonalGuaranteesMember
2551 Letters of credit [Member] Member bsac:LettersOfCreditsMember
2552 Performance Guarantees [Member] Member ifrs-full:GuaranteesMember
2553 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2554 Loans and accounts receivable: Abstract bsac:LoansAndAccountsReceivableAbstract
2555 Loans and accounts receivable Concept (Monetary) As Of Debit bsac:GrossLoanAndReceivables
2556 Allowance for loan losses Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
2557 Net loans Concept (Monetary) As Of Debit bsac:LoansAndReceivablesNet
2558 Guarantees Concept (Monetary) As Of ifrs-full:MaximumExposureToLossFromContinuingInvolvement
2559 Contingent loans: Abstract bsac:ContingentLoansAbstract
2560 Contingent loans Concept (Monetary) As Of Debit ifrs-full:GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements
2561 Allowance for contingent loans Concept (Monetary) As Of Credit bsac:AllowanceForContingentLoans
2562 Net contingent loans Concept (Monetary) As Of Debit ifrs-full:NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition
2563 00000208 - Disclosure - TRANSACTIONS WITH RELATED PARTIES (Details 1) Network

*

*

 http://santander.cl/role/TransactionsWithRelatedPartiesDetails1
2564 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
2565 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2566 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2567 Companies Of The Group [Member] Member bsac:SantanderGroupCompaniesMember
2568 Associated Companies [Member] Member ifrs-full:AssociatesMember
2569 Key Personnel [Member] Member ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
2570 Other [Member] Member ifrs-full:OtherRelatedPartiesMember
2571 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
2572 Opening balances Concept (Monetary) As Of Debit bsac:LoanActivityToRelatedParties
2573 Loans granted Concept (Monetary) For Period Debit bsac:LoansGrantedToRelatedParties
2574 Loans payments Concept (Monetary) For Period Debit bsac:LoansPaymentsFromRelatedParties
2575 Ending balances Concept (Monetary) As Of Debit bsac:LoanActivityToRelatedParties
2576 00000209 - Disclosure - TRANSACTIONS WITH RELATED PARTIES (Details 2) Network

*

*

 http://santander.cl/role/TransactionsWithRelatedPartiesDetails2
2577 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
2578 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2579 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2580 Companies Of The Group [Member] Member bsac:SantanderGroupCompaniesMember
2581 Associated Companies [Member] Member ifrs-full:AssociatesMember
2582 Key Personnel [Member] Member ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
2583 Other [Member] Member ifrs-full:OtherRelatedPartiesMember
2584 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
2585 Assets Abstract ifrs-full:AssetsAbstract
2586 Cash and deposits in banks Concept (Monetary) As Of Debit ifrs-full:Cash
2587 Trading investments Concept (Monetary) As Of Debit bsac:TradingInvestments
2588 Obligations under repurchase agreements Loans Concept (Monetary) As Of Debit bsac:ObligationsUnderRepurchaseAgreementsLoans
2589 Financial derivative contracts Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
2590 Available for sale investments Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAvailableforsale
2591 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherFinancialAssets
2592 Liabilities Abstract ifrs-full:LiabilitiesAbstract
2593 Deposits and other demand liabilities Concept (Monetary) As Of Credit ifrs-full:BalancesOnDemandDepositsFromCustomers
2594 Obligations under repurchase agreements Loans Concept (Monetary) As Of Credit ifrs-full:RepurchaseAgreementsAndCashCollateralOnSecuritiesLent
2595 Time deposits and other time liabilities Concept (Monetary) As Of Credit ifrs-full:BalancesOnTermDepositsFromCustomers
2596 Financial derivative contracts Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
2597 Issued debt instruments Concept (Monetary) As Of Credit ifrs-full:DebtSecurities
2598 Other financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNonfinancialLiabilities
2599 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherLiabilities
2600 00000210 - Disclosure - TRANSACTIONS WITH RELATED PARTIES (Details 3) Network

*

*

 http://santander.cl/role/TransactionsWithRelatedPartiesDetails3
2601 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
2602 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2603 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2604 Companies Of The Group [Member] Member bsac:SantanderGroupCompaniesMember
2605 Associated Companies [Member] Member ifrs-full:AssociatesMember
2606 Key Personnel [Member] Member ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
2607 Other [Member] Member ifrs-full:OtherRelatedPartiesMember
2608 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
2609 Income (expense) recorded Abstract bsac:IncomeExpenseRecordedAbstract
2610 Interest income and inflation-indexation adjustments Concept (Monetary) For Period Credit bsac:InterestIncomeAndInflationIndexationAdjustments
2611 Fee and commission income and expenses Concept (Monetary) For Period Credit ifrs-full:FeeAndCommissionIncomeExpense
2612 Net income (expense) from financial operations and net foreign exchange gain (loss) (*) Concept (Monetary) For Period Credit bsac:NetIncomeExpenseFromFinancialOperationsAndNetForeignExchangeGainLoss
2613 Other operating income and expenses Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
2614 Key personnel compensation and expenses Concept (Monetary) For Period Debit bsac:KeyPersonnelCompensationAndExpenses
2615 Administrative and other expenses Concept (Monetary) For Period Debit bsac:AdministrativeAndOtherExpenses
2616 Total Concept (Monetary) For Period Credit bsac:IncomeExpenseRecorded
2617 00000211 - Disclosure - TRANSACTIONS WITH RELATED PARTIES (Details 4) Network

*

*

 http://santander.cl/role/TransactionsWithRelatedPartiesDetails4
2618 Implied Table Table

*

*

 implied:Table
2619 Transactions With Related Parties Abstract bsac:TransactionsWithRelatedPartiesAbstract
2620 Personnel compensation Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationPersonnelCompensation
2621 Board members' salaries and expenses Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationBoardMembersSalariesAndExpenses
2622 Bonuses or gratifications Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationBonusesOrGratifications
2623 Compensation in stock Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationCompensationInStock
2624 Training expenses Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationTrainingExpenses
2625 Seniority compensation Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationSeniorityCompensation
2626 Health funds Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationHealthFunds
2627 Other personnel expenses Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensationOtherLongtermBenefits1
2628 Pension plans Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
2629 Total Concept (Monetary) For Period Debit bsac:KeyManagementPersonnelCompensation1
2630 00000212 - Disclosure - TRANSACTIONS WITH RELATED PARTIES (Details 5) Network

*

*

 http://santander.cl/role/TransactionsWithRelatedPartiesDetails5
2631 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
2632 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2633 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2634 Director [Member] Member bsac:Director1Member
2635 Division Manager [Member] Member bsac:DivisionManagerMember
2636 Manager [Member] Member bsac:ManagerMember
2637 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
2638 No. of executives Concept (Integer) As Of bsac:NumberOfExecutives
2639 00000213 - Disclosure - PENSION PLANS (Details) Network

*

*

 http://santander.cl/role/PensionPlansDetails
2640 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
2641 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2642 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2643 Other post-employment benefit plans [Member] Member bsac:OtherPostretirementBenefitPlansDefinedBenefit1Member
2644 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2645 Mortality chart Concept (Text/String) For Period bsac:MortalityChart
2646 Termination of contract rates Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
2647 Impairment chart Concept (Text/String) For Period bsac:ImpairmentChart
2648 00000214 - Disclosure - PENSION PLANS (Details 1) Network

*

*

 http://santander.cl/role/PensionPlansDetails1
2649 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
2650 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2651 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2652 Other post-employment benefit plans [Member] Member bsac:OtherPostretirementBenefitPlansDefinedBenefit1Member
2653 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2654 Plan assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
2655 Commitments for defined-benefit plans Abstract bsac:CommitmentsForDefinedBenefitPlansAbstract
2656 For active personnel Concept (Monetary) For Period Credit bsac:ForActivePersonnel
2657 Incurred by inactive personnel Concept (Monetary) For Period Credit bsac:IncurredByInactivePersonnel
2658 Minus: Abstract bsac:MinusAbstract
2659 Unrealized actuarial (gain) losses Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
2660 Balances at year end Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
2661 00000215 - Disclosure - PENSION PLANS (Details 2) Network

*

*

 http://santander.cl/role/PensionPlansDetails2
2662 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
2663 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2664 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2665 Other post-employment benefit plans [Member] Member bsac:OtherPostretirementBenefitPlansDefinedBenefit1Member
2666 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2667 a) Fair value of plan assets Abstract ifrs-full:DisclosureOfFairValueOfPlanAssetsAbstract
2668 Opening balance Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
2669 Expected yield of insurance contracts Concept (Monetary) For Period Credit bsac:ExpectedYieldOfInsuranceContractsFairValueOfPlanAssets
2670 Employer contributions Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
2671 Actuarial (gain) losses Concept (Monetary) For Period Debit ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
2672 Premiums paid Concept (Monetary) For Period Credit bsac:PremiumsPaidFairValueOfPlanAssets
2673 Benefits paid Concept (Monetary) For Period Credit bsac:BenefitsPaidNetDefinedBenefitLiabilityAsset
2674 Fair value of plan assets at year end Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
2675 b) Present value of obligations Abstract bsac:ChangeInBenefitObligationsNetDefinedBenefitLiabilityAssetAbstract
2676 Present value of obligations opening balance Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
2677 Net incorporation of Group companies Concept (Monetary) For Period Credit bsac:DefinedBenefitObligationNetIncorporationOfGroupCompanies
2678 Service cost Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
2679 Interest cost Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
2680 Curtailment/settlement effect Concept (Monetary) For Period Debit ifrs-full:GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset
2681 Benefits paid Concept (Monetary) For Period Credit bsac:BenefitsPaidNetDefinedBenefitLiabilityAsset1
2682 Past service cost Concept (Monetary) For Period Credit ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset
2683 Actuarial (gain) losses Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
2684 Other Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset
2685 Present value of obligations at year end Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
2686 Net balance at year end Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
2687 00000216 - Disclosure - PENSION PLANS (Details 3) Network

*

*

 http://santander.cl/role/PensionPlansDetails3
2688 Implied Table Table

*

*

 implied:Table
2689 Pension Plans Abstract bsac:PensionPlansAbstract
2690 Type of expected yield from the plan's assets Concept (Text/String) For Period bsac:TypeOfExpectedYieldFromPlansAssets
2691 Type of yield expected from the reimbursement rights Concept (Text/String) For Period bsac:TypeOfExpectedYieldFromReimbursementRights
2692 00000217 - Disclosure - PENSION PLANS (Details 4) Network

*

*

 http://santander.cl/role/PensionPlansDetails4
2693 Implied Table Table

*

*

 implied:Table
2694 Pension Plans Abstract bsac:PensionPlansAbstract
2695 Current period service expenses Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
2696 Interest cost Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
2697 Expected yield from plan's assets Concept (Monetary) For Period Credit bsac:ExpectedYieldOfInsuranceContractsFairValueOfPlanAssets
2698 Expected yield of insurance contracts linked to the Plan: Abstract bsac:ExpectedYieldOfInsuranceContractsLinkedToThePlanAbstract
2699 Extraordinary allocations Concept (Monetary) For Period Credit bsac:ExtraordinaryAllocations
2700 Actuarial (gain)/ losses recorded in the period Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
2701 Past service cost Concept (Monetary) For Period Credit ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset
2702 Other Concept (Monetary) For Period Debit bsac:ExpectedYieldOfInsuranceContractsOther
2703 Total Concept (Monetary) For Period Debit bsac:ExpectedYieldOfInsuranceContracts
2704 00000218 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details) Network

*

*

 http://santander.cl/role/FairValueOfFinancialAssetsAndLiabilitiesDetails
2705 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2706 Measurement [axis] Axis ifrs-full:MeasurementAxis
2707 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2708 Book Value [Member] Member bsac:AtBookValueMember
2709 At Fair Value [Member] Member ifrs-full:AtFairValueMember
2710 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
2711 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
2712 Trading Investments [Member] Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember
2713 Financial Derivative Contracts [Member] Member bsac:FinancialAssetsDerivativeContractsCategoryMember
2714 Loans and Account Receivable From Customers and Interbank Loans, Net [Member] Member bsac:LoansAndReceivablesAndInnterBankLoansNetCategoryMember
2715 Debt Instrument At FVOCI [Member] Member bsac:DebtInstrumentAtFVOCIMember
2716 Available For Sale Investments [Member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
2717 Guarantee Deposits (Margin Accounts) [Member] Member bsac:FinancialAssetsGuaranteeDepositsMarginAccountsCategoryMember
2718 Loans And Accounts Receivable At Amortised Cost [Member] Member bsac:LoansAndAccountsReceivableAtAmortisedCostNetMember
2719 Loans And Accounts Receivable At Fvoci Net [Member] Member bsac:LoansAndAccountsReceivableAtFvociNetMember
2720 Financial Assets Held For Trading [Member] Member bsac:FinancialAssetsHeldForTradingMember
2721 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
2722 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
2723 Deposits and Interbank Borrowings [Member] Member bsac:FinancialLiabilitiesDepositsAndInterbankBorrowingsCategoryMember
2724 Financial Derivative Contracts [Member] Member bsac:FinancialLiabilitiesDerivativeContractsCategoryMember
2725 Issued Debt Instruments And Other Financial Liabilities [Member] Member bsac:FinancialLiabilitiesIssuedDebtInstrumentsAndOtherFinancialLiabilitiesCategoryMember
2726 Guarantees received (margin accounts) [Member] Member bsac:FinancialLiabilitiesGuaranteesReceivedMarginAccountsCategoryMember
2727 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2728 Assets Concept (Monetary) As Of Debit ifrs-full:Assets
2729 Liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
2730 00000219 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 1) Network

*

*

 http://santander.cl/role/FairValueOfFinancialAssetsAndLiabilitiesDetails1
2731 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2732 Measurement [axis] Axis ifrs-full:MeasurementAxis
2733 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2734 Recurrent Basis [Member] Member ifrs-full:RecurringFairValueMeasurementMember
2735 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
2736 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
2737 Trading Investments [Member] Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember
2738 Available For Sale Investments [Member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
2739 Financial Derivative Contracts [Member] Member bsac:FinancialAssetsDerivativeContractsCategoryMember
2740 Guarantee Deposits (Margin Accounts) [Member] Member bsac:FinancialAssetsGuaranteeDepositsMarginAccountsCategoryMember
2741 Financial Assets Held For Trading [Member] Member bsac:FinancialAssetsHeldForTradingMember
2742 Debt Instrument At FVOCI [Member] Member bsac:DebtInstrumentAtFVOCIMember
2743 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
2744 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
2745 Level 1 [Member] Member ifrs-full:Level1OfFairValueHierarchyMember
2746 Level 2 [Member] Member ifrs-full:Level2OfFairValueHierarchyMember
2747 Level 3 [Member] Member ifrs-full:Level3OfFairValueHierarchyMember
2748 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
2749 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
2750 Financial Derivative Contracts [Member] Member bsac:FinancialLiabilitiesDerivativeContractsCategoryMember
2751 Guarantees received (margin accounts) [Member] Member bsac:FinancialLiabilitiesGuaranteesReceivedMarginAccountsCategoryMember
2752 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2753 Assets Concept (Monetary) As Of Debit ifrs-full:Assets
2754 Liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
2755 00000220 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 2) Network

*

*

 http://santander.cl/role/FairValueOfFinancialAssetsAndLiabilitiesDetails2
2756 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2757 Measurement [axis] Axis ifrs-full:MeasurementAxis
2758 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
2759 Not Measured At Fair Value [Member] Member ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember
2760 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
2761 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
2762 Loans and Account Receivable From Customers and Interbank Loans, Net [Member] Member bsac:LoansAndReceivablesAndInnterBankLoansNetCategoryMember
2763 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
2764 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
2765 Level 1 [Member] Member ifrs-full:Level1OfFairValueHierarchyMember
2766 Level 2 [Member] Member ifrs-full:Level2OfFairValueHierarchyMember
2767 Level 3 [Member] Member ifrs-full:Level3OfFairValueHierarchyMember
2768 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
2769 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
2770 Deposits and Interbank Borrowings [Member] Member bsac:FinancialLiabilitiesDepositsAndInterbankBorrowingsCategoryMember
2771 Issued Debt Instruments And Other Financial Liabilities [Member] Member bsac:FinancialLiabilitiesIssuedDebtInstrumentsAndOtherFinancialLiabilitiesCategoryMember
2772 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2773 Assets Concept (Monetary) As Of Debit ifrs-full:Assets
2774 Liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
2775 00000221 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 3) Network

*

*

 http://santander.cl/role/FairValueOfFinancialAssetsAndLiabilitiesDetails3
2776 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2777 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
2778 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
2779 Level 3 [Member] Member ifrs-full:Level3OfFairValueHierarchyMember
2780 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
2781 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
2782 Financial Derivative Contracts [Member] Member bsac:FinancialAssetsDerivativeContractsCategoryMember
2783 Debt Instrument At FVOCI [Member] Member bsac:DebtInstrumentAtFVOCIMember
2784 Available For Sale Investments [Member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
2785 Valuation techniques used in fair value measurement [axis] Axis ifrs-full:ValuationTechniquesUsedInFairValueMeasurementAxis
2786 Valuation techniques [member] Member ifrs-full:ValuationTechniquesMember
2787 Present Value Method [Member] Member bsac:PresentValueMethodMember
2788 Internal Rate Of Return Method [Member] Member bsac:InternalRateOfReturnMethodMember
2789 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2790 Main unobservabe inputs Concept (Text/String) For Period bsac:MainUnobservableInputs
2791 Impact Sens. -1bp Unfavourable scenario Concept (Monetary) For Period Debit bsac:ImpactSensMinus1bpUnfavourableScenario
2792 Impact Sens. +1bp Favourable scenario Concept (Monetary) For Period Debit bsac:ImpactSensPlus1bpFavourableScenario
2793 00000222 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 4) Network

*

*

 http://santander.cl/role/FairValueOfFinancialAssetsAndLiabilitiesDetails4
2794 Disclosure of fair value measurement of assets [table] Table

*

*

 ifrs-full:DisclosureOfFairValueMeasurementOfAssetsTable
2795 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
2796 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
2797 Level 3 [Member] Member ifrs-full:Level3OfFairValueHierarchyMember
2798 Disclosure of fair value measurement of assets [line items] LineItems ifrs-full:DisclosureOfFairValueMeasurementOfAssetsLineItems
2799 As of January 1, 2018 Concept (Monetary) As Of Debit ifrs-full:Assets
2800 Total realized and unrealized profits (losses) Abstract ifrs-full:ChangesInFairValueMeasurementAssetsAbstract
2801 Included in statements of income Concept (Monetary) For Period ifrs-full:GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets
2802 Included in other comprehensive income Concept (Monetary) For Period ifrs-full:GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets
2803 Purchases, issuances, and loans (net) Concept (Monetary) For Period Debit bsac:PurchasesIssuancesAndLoansAssetsNet
2804 As of December 31, 2018 Concept (Monetary) As Of Debit ifrs-full:Assets
2805 Total profits or losses included in comprehensive income for 2017 that are attributable to change in unrealized profit (losses) related to assets or liabilities as of December 31, 2016 Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement
2806 Reconciliation of Changes in Fair Value Measurement, Liabilities [Roll Forward] Abstract ifrs-full:ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract
2807 As of January 1, 2018 Concept (Monetary) As Of Credit ifrs-full:Liabilities
2808 Total realized and unrealized profits (losses) Abstract ifrs-full:ChangesInFairValueMeasurementLiabilitiesAbstract
2809 Included in statements of income Concept (Monetary) For Period ifrs-full:GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities
2810 Included in other comprehensive income Concept (Monetary) For Period ifrs-full:GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementLiabilities
2811 Purchases, issuances, and loans (net) Concept (Monetary) For Period Credit bsac:PurchasesIssuancesAndLoansLiabilitiesNet
2812 As of December 31, 2018 Concept (Monetary) As Of Credit ifrs-full:Liabilities
2813 Total profits or losses included in comprehensive income for 2017 that are attributable to change in unrealized profit (losses) related to assets or liabilities as of December 31, 2016 Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForLiabilitiesHeldAtEndOfPeriodFairValueMeasurement
2814 00000223 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 5) Network

*

*

 http://santander.cl/role/FairValueOfFinancialAssetsAndLiabilitiesDetails5
2815 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2816 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
2817 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
2818 Financial Derivative Contracts [Member] Member bsac:FinancialAssetsDerivativeContractsCategoryMember
2819 Loans and Account Receivable From Customers and Interbank Loans, Net [Member] Member bsac:LoansAndReceivablesAndInnterBankLoansNetCategoryMember
2820 Investments Under Resale Agreements [Member] Member bsac:InvestmentsUnderResaleAgreementsAssetsMember
2821 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
2822 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
2823 Financial Derivative Contracts [Member] Member bsac:FinancialLiabilitiesDerivativeContractsCategoryMember
2824 Investments Under Resale Agreements [Member] Member bsac:InvestmentsUnderResaleAgreementsLiabilitiesMember
2825 Deposits and Interbank Borrowings [Member] Member bsac:FinancialLiabilitiesDepositsAndInterbankBorrowingsCategoryMember
2826 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2827 Assets Abstract ifrs-full:AssetsAbstract
2828 Gross amounts Concept (Monetary) As Of Debit bsac:AssetsGrossCompensationAmount
2829 Compensated in balance Concept (Monetary) As Of Debit bsac:AssetsCompensatedInBalance
2830 Net amount presented in balance Concept (Monetary) As Of Debit bsac:AssetsNetCompensationAmount
2831 Remains of unrelated and / or unencumbered financial instruments Concept (Monetary) As Of Debit bsac:AssetsRemainsOfUnrelatedAndUnencumberedFinancialInstruments
2832 Amount in Statements of Financial Position Concept (Monetary) As Of Debit bsac:Assets1
2833 Liabilities Abstract ifrs-full:LiabilitiesAbstract
2834 Gross amounts Concept (Monetary) As Of Debit bsac:LiabilitiesGrossCompensationAmount
2835 Compensated in balance Concept (Monetary) As Of Debit bsac:LiabilitiesCompensatedInBalance
2836 Net amount presented in balance Concept (Monetary) As Of Debit bsac:LiabilitiesNetCompensationAmount
2837 Remains of unrelated and / or unencumbered financial instruments Concept (Monetary) As Of Debit bsac:LiabilitiesRemainsOfUnrelatedAndUnencumberedFinancialInstruments
2838 Amount in Statements of Financial Position Concept (Monetary) As Of Credit bsac:Liabilities1
2839 00000224 - Disclosure - FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES (Details 6) Network

*

*

 http://santander.cl/role/FairValueOfFinancialAssetsAndLiabilitiesDetails6
2840 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2841 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
2842 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
2843 Financial Assets Derivative Contracts With Collateral Agreement Threshold Equal To Zero [Member] Member bsac:FinancialAssetsDerivativeContractsCategoryWithCollateralAgreementThresholdEqualToZeroMember
2844 Financial Assets Derivative Contracts With Non-Zero Threshold Collateral Agreement [Member] Member bsac:FinancialAssetsDerivativeContractsCategoryWithNonZeroThresholdCollateralAgreementMember
2845 Financial Assets Derivative Contracts Without Collateral Agreement [Member] Member bsac:FinancialAssetsDerivativeContractsCategoryWithoutCollateralAgreementMember
2846 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
2847 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
2848 Financial Liabilities Derivative Contracts With Collateral Agreement Threshold Equal To Zero [Member] Member bsac:FinancialLiabilitiesDerivativeContractsCategoryWithCollateralAgreementThresholdEqualToZeroMember
2849 Financial Liabilities Derivative Contracts With Non-Zero Threshold Collateral Agreement [Member] Member bsac:FinancialLiabilitiesDerivativeContractsCategoryWithNonZeroThresholdCollateralAgreementMember
2850 Financial Liabilities Derivative Contracts Without Collateral Agreement [Member] Member bsac:FinancialLiabilitiesDerivativeContractsCategoryWithoutCollateralAgreementMember
2851 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2852 Assets Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
2853 Liability Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
2854 00000232 - Disclosure - RISK MANAGEMENT (Details 7) Network

*

*

 http://santander.cl/role/RiskManagementDetails7
2855 Disclosure of risk management strategy related to hedge accounting [table] Table

*

*

 ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable
2856 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2857 Risks [member] Member ifrs-full:TypesOfRisksMember
2858 Credit Risk [Member] Member ifrs-full:CreditRiskMember
2859 Classes of financial assets [Axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
2860 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
2861 Commercial Loans [Member] Member bsac:CommercialLoansMember
2862 Mortgages [Member] Member ifrs-full:MortgagesMember
2863 Consumer Loans [Member] Member ifrs-full:ConsumerLoansMember
2864 Disclosure of risk management strategy related to hedge accounting [line items] LineItems ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems
2865 Gross carrying amount Concept (Monetary) As Of Credit bsac:GrossAllowanceAccountForCreditLossesOfFinancialAssets
2866 Collateral Concept (Monetary) As Of Debit bsac:ExpectedCreditLossAllowanceCollateral
2867 Net exposure Concept (Monetary) As Of Debit bsac:ExpectedCreditLossAllowanceNetExposure
2868 Expected credit loss allowance Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
2869 00000236 - Disclosure - RISK MANAGEMENT (Details 11) Network

*

*

 http://santander.cl/role/RiskManagementDetails11
2870 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
2871 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2872 Risks [member] Member ifrs-full:TypesOfRisksMember
2873 Credit Risk [Member] Member ifrs-full:CreditRiskMember
2874 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
2875 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
2876 Commerical Loans [Member] Member bsac:CommericalLoansMember
2877 Residential Mortgage Loans [Member] Member bsac:ResidentialMortgageLoansMember
2878 Consumer Loans [Member] Member ifrs-full:ConsumerLoansMember
2879 Method Of Assessment Of Expected Credit Losses [Axis] Axis ifrs-full:MethodOfAssessmentOfExpectedCreditLossesAxis
2880 Method of assessment of expected credit losses [member] Member ifrs-full:MethodOfAssessmentOfExpectedCreditLossesMember
2881 Individual [Member] Member ifrs-full:ExpectedCreditLossesIndividuallyAssessedMember
2882 Collectively Assessed [Member] Member ifrs-full:ExpectedCreditLossesCollectivelyAssessedMember
2883 Internal credit grades [axis] Axis ifrs-full:InternalCreditGradesAxis
2884 Entity's total for internal credit grades [member] Member ifrs-full:EntitysTotalForInternalCreditGradesMember
2885 A1 [Member] Member bsac:InternalCreditGrades1Member
2886 A2 [Member] Member bsac:InternalCreditGrades2Member
2887 A3 [Member] Member bsac:InternalCreditGrades3Member
2888 B [Member] Member bsac:InternalCreditGrades4Member
2889 C1 [Member] Member bsac:InternalCreditGrades5Member
2890 C2 [Member] Member bsac:InternalCreditGrades6Member
2891 C3 [Member] Member bsac:InternalCreditGrades7Member
2892 C4 [Member] Member bsac:InternalCreditGrades8Member
2893 D1 [Member] Member bsac:InternalCreditGrades9Member
2894 D2 [Member] Member bsac:InternalCreditGrades10Member
2895 Credit impairment of financial instruments [axis] Axis ifrs-full:CreditImpairmentOfFinancialInstrumentsAxis
2896 Credit impairment of financial instruments [member] Member ifrs-full:CreditImpairmentOfFinancialInstrumentsMember
2897 Normal Portfolio [Member] Member ifrs-full:FinancialInstrumentsNotCreditimpairedMember
2898 Impaired Portfolio [Member] Member ifrs-full:FinancialInstrumentsCreditimpairedMember
2899 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
2900 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
2901 Financial assets percentage % Concept (Percent) As Of bsac:FinancialAssetsPercentage
2902 Total ECL Allowance Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
2903 Total ECL Allowance percentage % Concept (Percent) As Of bsac:AllowanceAccountForCreditLossesOfFinancialAssetsPercentage
2904 00000237 - Disclosure - RISK MANAGEMENT (Details 12) Network

*

*

 http://santander.cl/role/RiskManagementDetails12
2905 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
2906 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
2907 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
2908 Deposits In Banks [Member] Member bsac:DepositsInBanksMember
2909 Cash Items In Process Of Collection [Member] Member bsac:CashItemsInProcessOfCollectionMember
2910 Trading Investments [Member] Member bsac:TradingInvestmentsMember
2911 Investments Under Resale Agreements [Member] Member bsac:InvestmentsUnderResaleAgreementsMember
2912 Financial Derivative Contracts [Member] Member bsac:FinancialDerivativeContractsMember
2913 Loans And Accounts Receivable From Customers And Interbank Loans, Net [Member] Member bsac:LoansAndAccountsReceivableFromCustomersAndInterbankLoansNetMember
2914 Available For Sale Investment [Member] Member bsac:AvailableForSaleInvestmentsMember
2915 Letters Of Credit Issued [Member] Member bsac:LettersOfCreditIssuedMember
2916 Foreign Letters Of Credit Confirmed [Member] Member bsac:ForeignLettersOfCreditConfirmedMember
2917 Performance Guarantees [Member] Member ifrs-full:GuaranteesMember
2918 Available Credit Lines [Member] Member bsac:AvailableCreditLinesMember
2919 Personal Guarantees [Member] Member bsac:PersonalGuaranteesMember
2920 Other Irrevocable Credit Commitments [Member] Member bsac:OtherIrrevocableCreditCommitmentsMember
2921 Financial Assets Held For Trading [Member] Member bsac:FinancialAssetsHeldForTradingMember
2922 Loans And Account Receivable At Amortised Cost / Loans And Account Receivable At FVOCI [Member] Member bsac:LoansAndAccountReceivableAtAmortisedCostMember
2923 Debt Instrument At Fair Value Through Other Comprehensive Income [Member] Member bsac:DebtInstrumentAtFairValueThroughOtherComprehensiveIncomeMember
2924 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2925 Risks [member] Member ifrs-full:TypesOfRisksMember
2926 Credit Risk [Member] Member ifrs-full:CreditRiskMember
2927 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
2928 Total Concept (Monetary) As Of ifrs-full:MaximumExposureToCreditRisk
2929 00000238 - Disclosure - RISK MANAGEMENT (Details 13) Network

*

*

 http://santander.cl/role/RiskManagementDetails13
2930 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
2931 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2932 Risks [member] Member ifrs-full:TypesOfRisksMember
2933 Credit Risk [Member] Member ifrs-full:CreditRiskMember
2934 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
2935 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
2936 Foreign Derivative Contracts [Member] Member ifrs-full:DerivativesMember
2937 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2938 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2939 Bolivia Member bsac:BOMember
2940 China Member bsac:CNMember
2941 Italia Member bsac:ITMember
2942 Mexico Member bsac:MXMember
2943 Panama Member bsac:PAMember
2944 Peru Member bsac:PEMember
2945 Tailandia Member bsac:THMember
2946 Turquia Member bsac:TQMember
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2948 All Currencies [Domain] Member currency:AllCurrenciesDomain
2949 USD [Member] Member currency:USD
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2952 Derivative Instruments (adjusted to market) Concept (Monetary) As Of Debit bsac:DerivativeInstrumentsAdjustedMarketValue
2953 Deposits Concept (Monetary) As Of Debit bsac:DerivativeDeposits
2954 Loans Concept (Monetary) As Of Debit bsac:DerivativeLoans
2955 Financial investments Concept (Monetary) As Of Debit bsac:DerivativeFinancialInvestments
2956 Total Exposure Concept (Monetary) As Of ifrs-full:CreditExposure
2957 00000239 - Disclosure - RISK MANAGEMENT (Details 14) Network

*

*

 http://santander.cl/role/RiskManagementDetails14
2958 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
2959 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2960 Risks [member] Member ifrs-full:TypesOfRisksMember
2961 Credit Risk [Member] Member ifrs-full:CreditRiskMember
2962 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
2963 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
2964 Foreign Derivative Contracts [Member] Member ifrs-full:DerivativesMember
2965 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2966 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2967 Banco Santander Spain [Member] Member bsac:BancoSantanderSpainMember
2968 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2969 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2970 Spain Member bsac:ESMember
2971 Currency [Axis] Axis srt:CurrencyAxis
2972 All Currencies [Domain] Member currency:AllCurrenciesDomain
2973 USD [Member] Member currency:USD
2974 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
2975 Classification Concept (Integer) For Period bsac:DerivativesClassficationNumber
2976 Derivative Instruments (adjusted to market) Concept (Monetary) As Of Debit bsac:DerivativeInstrumentsAdjustedMarketValue
2977 Deposits Concept (Monetary) As Of Debit bsac:DerivativeDeposits
2978 Loans Concept (Monetary) As Of Debit bsac:DerivativeLoans
2979 Financial investments Concept (Monetary) As Of Debit bsac:DerivativeFinancialInvestments
2980 Total Exposure Concept (Monetary) As Of ifrs-full:CreditExposure
2981 00000240 - Disclosure - RISK MANAGEMENT (Details 15) Network

*

*

 http://santander.cl/role/RiskManagementDetails15
2982 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2983 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2984 Risks [member] Member ifrs-full:TypesOfRisksMember
2985 Credit Risk [Member] Member ifrs-full:CreditRiskMember
2986 Credit impairment of financial instruments [axis] Axis ifrs-full:CreditImpairmentOfFinancialInstrumentsAxis
2987 Credit impairment of financial instruments [member] Member ifrs-full:CreditImpairmentOfFinancialInstrumentsMember
2988 Normal Portfolio [Member] Member ifrs-full:FinancialInstrumentsNotCreditimpairedMember
2989 Impaired Portfolio [Member] Member ifrs-full:FinancialInstrumentsCreditimpairedMember
2990 Classes of financial assets [Axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
2991 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
2992 Properties/Mortgages [Member] Member bsac:PropertiesAndMortgagesMember
2993 Investments & Others [Member] Member bsac:InvestmentsAndOthersMember
2994 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
2995 Total Concept (Monetary) As Of Debit bsac:CollateralHeldAsSecurityAndOtherCreditEnhancements
2996 00000241 - Disclosure - RISK MANAGEMENT (Details 16) Network

*

*

 http://santander.cl/role/RiskManagementDetails16
2997 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
2998 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2999 Risks [member] Member ifrs-full:TypesOfRisksMember
3000 Liquidity Risk [Member] Member ifrs-full:LiquidityRiskMember
3001 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
3002 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
3003 Trading Investments [Member] Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember
3004 Available For Sale Investments [Member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
3005 Encumbered Assets (Net) [Member] Member bsac:FinancialAssetsEncumberedAssetsNetCategoryMember
3006 Net Cash [Member] Member bsac:FinancialAssetsNetCashCategoryMember
3007 Net Interbank Deposits [Member] Member bsac:FinancialAssetsNetInterbankDepositsCategoryMember
3008 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
3009 Total liquidity portfolio Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsHeldForManagingLiquidityRisk
3010 00000242 - Disclosure - RISK MANAGEMENT (Details 17) Network

*

*

 http://santander.cl/role/RiskManagementDetails17
3011 Disclosure of risk management strategy related to hedge accounting [table] Table

*

*

 ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable
3012 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
3013 Risks [member] Member ifrs-full:TypesOfRisksMember
3014 Liquidity Risk [Member] Member ifrs-full:LiquidityRiskMember
3015 Maturity [axis] Axis ifrs-full:MaturityAxis
3016 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
3017 Not Later Than One Month [Member] Member ifrs-full:NotLaterThanOneMonthMember
3018 Later Than One Month And Not Later Than Three Months [Member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
3019 Currency [Axis] Axis srt:CurrencyAxis
3020 All Currencies [Domain] Member currency:AllCurrenciesDomain
3021 30 Days Foreign Currency [Member] Member bsac:ForeignCurrencyMember
3022 Disclosure of risk management strategy related to hedge accounting [line items] LineItems ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems
3023 Percentages of exposure to liquidity risk Concept (Percent) As Of bsac:PercentagesOfExposureToLiquidityRisk
3024 00000243 - Disclosure - RISK MANAGEMENT (Details 18) Network

*

*

 http://santander.cl/role/RiskManagementDetails18
3025 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
3026 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
3027 Risks [member] Member ifrs-full:TypesOfRisksMember
3028 Liquidity Risk [Member] Member ifrs-full:LiquidityRiskMember
3029 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
3030 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
3031 Obligations under repurchase agreements [Member] Member bsac:ObligationsUnderRepurchaseAgreementsMember
3032 Checking Accounts, Time Deposits & Other Time Liabilities [Member] Member bsac:CheckingAccountsTimeDepositsAndOtherTimeLiabilitiesMember
3033 Financial Derivatives Contracts [Member] Member bsac:FinancialDerivativesContractsMember
3034 Interbank Borrowings [Member] Member bsac:InterbankBorrowingsMember
3035 Issue debt instruments [Member] Member bsac:IssueDebtInstrumentsMember
3036 Other financial liabilities [Member] Member bsac:OtherFinancialLiabilitiesMember
3037 Total Financial Liabilities Before Interest Payment [Member] Member bsac:TotalFinancialLiabilitiesBeforeInterestPaymentMember
3038 Contractual Interest Payments [Member] Member bsac:ContractualInterestPaymentsMember
3039 Total Financial Liabilities After Interest Payment [Member] Member bsac:TotalFinancialLiabilitiesAfterInterestPaymentMember
3040 Maturity [axis] Axis ifrs-full:MaturityAxis
3041 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
3042 Demand [Member] Member bsac:OnDemandMaturityMember
3043 Not Later Than One Month [Member] Member ifrs-full:NotLaterThanOneMonthMember
3044 More Than 3 Months To 1 Year [Member] Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanOneYearMember
3045 Later Than One Month And Not Later Than Three Months [Member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
3046 Due Within 1 Year [Member] Member ifrs-full:NotLaterThanOneYearMember
3047 Between 1 and 3 years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
3048 Later than three years and not later than five years [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
3049 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
3050 More Than 1 Year [Member] Member ifrs-full:LaterThanOneYearMember
3051 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
3052 Financial Liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
3053 00000244 - Disclosure - RISK MANAGEMENT (Details 19) Network

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*

 http://santander.cl/role/RiskManagementDetails19
3054 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
3055 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
3056 Risks [member] Member ifrs-full:TypesOfRisksMember
3057 Liquidity Risk [Member] Member ifrs-full:LiquidityRiskMember
3058 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
3059 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
3060 Other Commercial Commitments [Member] Member bsac:OtherCommercialCommitmentsMember
3061 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
3062 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
3063 Performance Guarantees [Member] Member ifrs-full:GuaranteesMember
3064 Foreign Letters Of Credit Confirmed [Member] Member bsac:ForeignLettersOfCreditConfirmedMember
3065 Letters Of Credit Issued [Member] Member bsac:LettersOfCreditIssuedMember
3066 Pledges And Other Commercial Commitments [Member] Member bsac:PledgesAndOtherCommercialCommitmentsMember
3067 Maturity [axis] Axis ifrs-full:MaturityAxis
3068 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
3069 Not Later Than One Month [Member] Member ifrs-full:NotLaterThanOneMonthMember
3070 Later Than One Month And Not Later Than Three Months [Member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
3071 More Than 3 Months To 1 Year [Member] Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanOneYearMember
3072 Between 1 and 5 Years [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
3073 Due After 5 Years [Member] Member ifrs-full:LaterThanFiveYearsMember
3074 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
3075 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
3076 00000245 - Disclosure - RISK MANAGEMENT (Details 20) Network

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*

 http://santander.cl/role/RiskManagementDetails20
3077 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
3078 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
3079 Risks [member] Member ifrs-full:TypesOfRisksMember
3080 Market Risk [Member] Member ifrs-full:MarketRiskMember
3081 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
3082 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
3083 Consolidated [Member] Member ifrs-full:ConsolidatedMember
3084 Fixed-Income Investments [Member] Member bsac:FixedIncomeInvestments1Member
3085 Variable-Income Investments [Member] Member bsac:VariableIncomeInvestmentsMember
3086 Foreign Currency Investments [Member] Member bsac:ForeignCurrencyInvestmentsMember
3087 Range [axis] Axis ifrs-full:RangeAxis
3088 Ranges [member] Member ifrs-full:RangesMember
3089 Top of Range [Member] Member ifrs-full:TopOfRangeMember
3090 Bottom of Range [Member] Member ifrs-full:BottomOfRangeMember
3091 Weighted Average [Member] Member ifrs-full:WeightedAverageMember
3092 Currency [Axis] Axis srt:CurrencyAxis
3093 All Currencies [Domain] Member currency:AllCurrenciesDomain
3094 USD [Member] Member currency:USD
3095 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
3096 Value at risk Concept (Monetary) As Of ifrs-full:ValueAtRisk
3097 00000246 - Disclosure - RISK MANAGEMENT (Details 21) Network

*

*

 http://santander.cl/role/RiskManagementDetails21
3098 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
3099 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
3100 Risks [member] Member ifrs-full:TypesOfRisksMember
3101 Market Risk [Member] Member ifrs-full:MarketRiskMember
3102 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
3103 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
3104 Local Currency Investments [Member] Member bsac:LocalCurrencyInvestmentsMember
3105 Foreign Currency Investments [Member] Member bsac:ForeignCurrencyInvestmentsMember
3106 Consolidated [Member] Member ifrs-full:ConsolidatedMember
3107 Range [axis] Axis ifrs-full:RangeAxis
3108 Ranges [member] Member ifrs-full:RangesMember
3109 Loss Limit [Member] Member bsac:LossLimitRangeMember
3110 Top of Range [Member] Member ifrs-full:TopOfRangeMember
3111 Bottom of Range [Member] Member ifrs-full:BottomOfRangeMember
3112 Weighted Average [Member] Member ifrs-full:WeightedAverageMember
3113 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
3114 Effect on financial income Concept (Monetary) As Of Debit bsac:MarketRiskEffectOnFinancialIncome
3115 Effect on capital Concept (Monetary) As Of Debit bsac:MarketRiskEffectEffectOnCapital
3116 00000247 - Disclosure - RISK MANAGEMENT (Details 22) Network

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*

 http://santander.cl/role/RiskManagementDetails22
3117 Disclosure of risk management strategy related to hedge accounting [table] Table

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*

 ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable
3118 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
3119 Risks [member] Member ifrs-full:TypesOfRisksMember
3120 Capital Risk [Member] Member bsac:CapitalRiskMember
3121 Disclosure of risk management strategy related to hedge accounting [line items] LineItems ifrs-full:DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems
3122 Basic capital Concept (Monetary) As Of Debit bsac:BasicCapital
3123 Regulatory capital Concept (Monetary) As Of Debit bsac:RegulatoryCapital
3124 Basic capital Concept (Percent) As Of bsac:BasicCapitalPercent
3125 Regulatory capital Concept (Percent) As Of bsac:RegulatoryCapitalPercent
3126 00000248 - Disclosure - SUBSEQUENT EVENTS (Details Narrative) Network

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*

 http://santander.cl/role/SubsequentEventsDetailsNarrative
3127 Disclosure of financial liabilities [table] Table

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*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
3128 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
3129 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
3130 Non-adjusting Events After Reporting Period [Member] Member bsac:NonadjustingEvents1Member
3131 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
3132 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
3133 Bonds [Member] Member bsac:Bonds1Member
3134 Currency [Axis] Axis srt:CurrencyAxis
3135 All Currencies [Domain] Member currency:AllCurrenciesDomain
3136 Unidad De Fomento (funds code) [Member] Member currency:CLF
3137 EUR Member currency:EUR
3138 CHF [Member] Member bsac:CHFMember
3139 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
3140 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
3141 T14 [Member] Member bsac:Tier14Member
3142 T18 [Member] Member bsac:Tier18Member
3143 T7 [Member] Member bsac:Tier7Member
3144 U9 [Member] Member bsac:TierU9Member
3145 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
3146 Notion amount Concept (Monetary) As Of ifrs-full:NotionalAmount

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