XML 223 R91.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Summary of Significant Accounting Policies (Details 1) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Redbanc S.A. [Member] |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |
Associates | [1] | Redbanc S.A. |  |  |  |
Main activity | [1] | ATM services |  |  |  |
Place of incorporation and operation | [1] | Santiago, Chile |  |  |  |
Percentage of ownership share | [2] |  | 33.43% |  | 33.43% |
Transbank S.A. [Member] |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |
Associates | [1] | Transbank S.A. |  |  |  |
Main activity | [1] | Debit and credit card services |  |  |  |
Place of incorporation and operation | [1] | Santiago, Chile |  |  |  |
Percentage of ownership share | [2] |  | 25.00% |  | 25.00% |
Centro de Compensación Automatizado [Member] |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |
Associates |  | Centro de Compensaci?n Automatizado |  |  |  |
Main activity |  | Electronic fund transfer and compensation services |  |  |  |
Place of incorporation and operation |  | Santiago, Chile |  |  |  |
Percentage of ownership share |  | 33.33% | 33.33% |  | 33.33% |
Sociedad Interbancaria de Deposito de Valores S.A. [Member] |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |
Associates |  | Sociedad Interbancaria de Dep?sito de Valores S.A. |  |  |  |
Main activity |  | Delivery of securities on public offer |  |  |  |
Place of incorporation and operation |  | Santiago, Chile |  |  |  |
Percentage of ownership share |  | 29.29% | 29.29% |  | 29.29% |
Camara de Compensacion de Alto Valor S.A. [Member] |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |
Associates |  | C?mara Compensaci?n de Alto Valor S.A. |  |  |  |
Main activity |  | Payments clearing |  |  |  |
Place of incorporation and operation |  | Santiago, Chile |  |  |  |
Percentage of ownership share | [3] | 15.00% | 15.00% |  | 15.00% |
Administrador Financiero del Transantiago S.A. [Member] |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |
Associates |  | Administrador Financiero del Transantiago S.A. |  |  |  |
Main activity |  | Administration of boarding passes to public transportation |  |  |  |
Place of incorporation and operation |  | Santiago, Chile |  |  |  |
Percentage of ownership share |  | 20.00% | 20.00% |  | 20.00% |
Sociedad Nexus S.A. [Member] |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |
Associates | [1] | Sociedad Nexus S.A. |  |  |  |
Main activity | [1] | Credit card processor |  |  |  |
Place of incorporation and operation | [1] | Santiago, Chile |  |  |  |
Percentage of ownership share | [2] |  | 12.90% |  | 12.90% |
Servicios de Infraestructura de Mercado OTC S.A. [Member] |  |  |  |  |  |
Disclosure of associates [line items] |  |  |  |  |  |
Associates |  | Servicios de Infraestructura de Mercado OTC S.A. |  |  |  |
Main activity |  | Administration of the infrastructure for the financial market of derivative instruments |  |  |  |
Place of incorporation and operation |  | Santiago, Chile |  |  |  |
Percentage of ownership share |  | 12.07% | 12.48% | [4],[5] | 12.48% | [4],[5]
[1] | The Bank is in process to sell its share participation on Redbanc S.A., Transbank S.A. and Nexus S.A., therefore it has applied IFRS 5 Non-current Assets Held for Sale and Discontinued Operations over its participations share. As of December 31, 2019, the Bank has sold 85% of its share participation in Nexus S.A. See Note N39.
[2] | The Bank has entered into a process of selling the shares in Redbanc S.A., Transbank S.A. and Nexus SA, therefore, the treatment established in IFRS 5 "Non-current assets held for sale and discontinued operations" has been applied, on the participation of said companies, which is described in Note 1 u) and Note 39.
[3] | In February 2017, Banco Paris sold to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA", the Banks share increased to 15.00%.
[4] | During 2016, Banco Penta ceded to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA" and "Market infrastructure services OTC S,A". the Bank's share in those companies increased to 14.93% and 12.07% respectively.
[5] | During 2016, Banco Penta ceded to Banco Santander a portion of its interest in the companies "Sociedad Operadora de la Camara de Compensacion de pagos de Alto Valor SA'' and "Servicios de Infraestructura de Mercado OTC S,A", the Banks share in those companies increased to 14.84% and 11.93% respectively.

X
- Definition The main acitivity of associate. + References No definition available. + Details
Name: | bsac_AssociateMainActivity
Namespace Prefix: | bsac_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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_DisclosureOfSignificantInvestmentsInAssociatesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The name of an associate. [Refer: Associates [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2019-01-01 -Paragraph 17 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_17_b_i&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2019-01-01 -Paragraph 16 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_16_b_i&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2019-01-01 -Paragraph 21 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_21_a_i&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_NameOfAssociate
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The principal place of business of an associate. [Refer: Principal place of business; Associates [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2019-01-01 -Paragraph 16 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_16_b_ii&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2019-01-01 -Paragraph 17 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_17_b_ii&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2019-01-01 -Paragraph 21 -Subparagraph a -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_21_a_iii&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_PrincipalPlaceOfBusinessOfAssociate
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2019-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2019-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2019-01-01 -Paragraph 21 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_21_a_iv&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInAssociate
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=bsac_RedbancSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=bsac_TransbankSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=bsac_CentrodeCompensacionAutomatizadoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=bsac_SociedadinterbancariadeDepositodeValoresSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=bsac_CamaraCompensaciondeAltoValorSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=bsac_AdministradorFinancierodelTransantiagoSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=bsac_SociedadNexusSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=bsac_ServiciosdeinfraestructuradeMercadoOTCSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |