XML 179 R241.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Subsequent Events (Details Textual) - CLP ($) $ in Millions |  | 1 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 27, 2018 | Jan. 21, 2020 | Feb. 04, 2020 | Jan. 22, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notion amount |  |  |  |  | $ 377,131,597 | $ 241,467,084 | $ 177,224,139
Non-adjusting events after reporting period [member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Bond issuance and repurchase, Shares | 280 |  |  |  |  |  |
Non-adjusting events after reporting period [member] | USD [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notion amount |  | $ 750 |  |  |  |  |
Bond issuance and repurchase term |  | 5 years |  |  |  |  |
Non-adjusting events after reporting period [member] | USD [Member] | Nexus [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notion amount |  |  |  | $ 79,577 |  |  |
Non-adjusting events after reporting period [member] | Senior Bonds [Member] | Unidad De Fomento [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notion amount |  |  | $ 2,000,000 |  |  |  |
Non-adjusting events after reporting period [member] | Subordinated bond [Member] | USD [Member] |  |  |  |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |  |  |  |
Notion amount |  | $ 200 |  |  |  |  |

X
- References No definition available. + Details
Name: | bsac_BondIssuanceAndRepurchaseShares
Namespace Prefix: | bsac_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | bsac_BondIssuedAndRepurchaseTerm
Namespace Prefix: | bsac_
Data Type: | xbrli:durationItemType
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_DisclosureOfFinancialLiabilitiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=bsac_NonadjustingEvents1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_USD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=bsac_SeniorBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=bsac_UFMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=bsac_SubordinatedBondMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |