XML 148 R237.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Risk Management (Details 18) - Capital Risk [Member] - CLP ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Disclosure of risk management strategy related to hedge accounting [line items] |  |
Basic capital | $ 3,390,823 | $ 3,239,546
Regulatory capital | $ 4,304,401 | $ 4,101,664
Basic capital | 6.96% | 7.72%
Regulatory capital | 12.86% | 13.40%

X
- Definition Represent information about basic capital. + References No definition available. + Details
Name: | bsac_BasicCapital
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represent information about basic capital percent. + References No definition available. + Details
Name: | bsac_BasicCapitalPercent
Namespace Prefix: | bsac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represent information about regulatory capital. + References No definition available. + Details
Name: | bsac_RegulatoryCapital
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represent information about regulatory capital percent. + References No definition available. + Details
Name: | bsac_RegulatoryCapitalPercent
Namespace Prefix: | bsac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=bsac_CapitalRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |