XML 83 R108.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Investments under Resale Agreements and Obligations under Repurchase Agreements (Details) - CLP ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Disclosure of fair value measurement of assets [line items] |  |
Total | $ 380,055 | $ 48,545
Instruments From Other Domestic Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 131 | 128
Instruments From Other Foreign Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
Time Deposits In Chilean Financial Institutions [Member] | Instruments From Other Domestic Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 131 | 128
Securities From Government Or Foreign Central Banks [Member] | Instruments From Other Foreign Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
From 1 Day And Less Than 3 Months [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 380,018 | 48,545
From 1 Day And Less Than 3 Months [Member] | Instruments From Other Domestic Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 127 | 128
From 1 Day And Less Than 3 Months [Member] | Instruments From Other Foreign Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
From 1 Day And Less Than 3 Months [Member] | Time Deposits In Chilean Financial Institutions [Member] | Instruments From Other Domestic Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 127 | 128
From 1 Day And Less Than 3 Months [Member] | Securities From Government Or Foreign Central Banks [Member] | Instruments From Other Foreign Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
More Than 3 Months To 1 Year [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 37 |
More Than 3 Months To 1 Year [Member] | Instruments From Other Domestic Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 4 |
More Than 3 Months To 1 Year [Member] | Instruments From Other Foreign Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
More Than 3 Months To 1 Year [Member] | Time Deposits In Chilean Financial Institutions [Member] | Instruments From Other Domestic Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 4 |
More Than 3 Months To 1 Year [Member] | Securities From Government Or Foreign Central Banks [Member] | Instruments From Other Foreign Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
More Than 1 Year [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
More Than 1 Year [Member] | Instruments From Other Domestic Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
More Than 1 Year [Member] | Instruments From Other Foreign Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
More Than 1 Year [Member] | Time Deposits In Chilean Financial Institutions [Member] | Instruments From Other Domestic Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
More Than 1 Year [Member] | Securities From Government Or Foreign Central Banks [Member] | Instruments From Other Foreign Institutions [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
Chilean Central Bank And Government Securities [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 379,924 | 48,417
Chilean Central Bank And Government Securities [Member] | Other Securities From The Government And The Chilean Central Bank [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 379,924 | 110
Chilean Central Bank And Government Securities [Member] | Chilean Central Bank Bonds [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  | 48,307
Chilean Central Bank And Government Securities [Member] | Chilean Central Bank Notes [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
Chilean Central Bank And Government Securities [Member] | From 1 Day And Less Than 3 Months [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 379,891 | 48,417
Chilean Central Bank And Government Securities [Member] | From 1 Day And Less Than 3 Months [Member] | Other Securities From The Government And The Chilean Central Bank [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 379,891 | 110
Chilean Central Bank And Government Securities [Member] | From 1 Day And Less Than 3 Months [Member] | Chilean Central Bank Bonds [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  | 48,307
Chilean Central Bank And Government Securities [Member] | From 1 Day And Less Than 3 Months [Member] | Chilean Central Bank Notes [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
Chilean Central Bank And Government Securities [Member] | More Than 3 Months To 1 Year [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 33 |
Chilean Central Bank And Government Securities [Member] | More Than 3 Months To 1 Year [Member] | Other Securities From The Government And The Chilean Central Bank [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total | 33 |
Chilean Central Bank And Government Securities [Member] | More Than 3 Months To 1 Year [Member] | Chilean Central Bank Bonds [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
Chilean Central Bank And Government Securities [Member] | More Than 3 Months To 1 Year [Member] | Chilean Central Bank Notes [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
Chilean Central Bank And Government Securities [Member] | More Than 1 Year [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
Chilean Central Bank And Government Securities [Member] | More Than 1 Year [Member] | Other Securities From The Government And The Chilean Central Bank [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
Chilean Central Bank And Government Securities [Member] | More Than 1 Year [Member] | Chilean Central Bank Bonds [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |
Chilean Central Bank And Government Securities [Member] | More Than 1 Year [Member] | Chilean Central Bank Notes [Member] |  |
Disclosure of fair value measurement of assets [line items] |  |
Total |  |

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of instruments purchased for resale in reverse repurchase agreements and cash collateral on securities borrowed. [Refer: Repurchase agreements and cash collateral on securities lent] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=bsac_OtherDomesticChileanSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=bsac_OtherForeignChileanSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=bsac_TimeDepositsInChileanFinancialInstitutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=bsac_SecuritiesFromGovemmentOrForeignCentralBanksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=bsac_LaterThanOneDayAndNotLaterThanThreeMonthsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeMonthsAndNotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=bsac_ChileanCentralBankandGovernmentSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=bsac_OtherChileanCentralBankandGovernmentSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=bsac_ChileanCentralBankBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=bsac_ChileanCentralBankNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |