XML 116 R91.htm IDEA: XBRL DOCUMENT v3.25.0.1

Summary of Significant Accounting Policies (Details) - Schedule of Associates	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Redbanc S.A.
Schedule of Associates [Line Items]
Percentage of ownership share	33.43%	33.43%	33.43%
Transbank S.A.
Schedule of Associates [Line Items]
Percentage of ownership share	25.00%	25.00%	25.00%
Centro de Compensación Automatizado S.A.
Schedule of Associates [Line Items]
Percentage of ownership share	33.33%	33.33%	33.33%
Sociedad Interbancaria de Depósito de Valores S.A.
Schedule of Associates [Line Items]
Percentage of ownership share	29.29%	29.29%	29.29%
Cámara Compensación de Pagos de Alto Valor S.A.
Schedule of Associates [Line Items]
Percentage of ownership share	13.72%	15.00%	15.00%
Administrador Financiero del Transantiago S.A.
Schedule of Associates [Line Items]
Percentage of ownership share	20.00%	20.00%	20.00%
Servicios de Infraestructura de Mercado OTC S.A.
Schedule of Associates [Line Items]
Percentage of ownership share	12.48%	12.48%	12.48%

X

- Definition

The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates.

+ References

No definition available.

+ Details

Name:	bsac_ProportionOfOwnershipInterestsInAssociate
Namespace Prefix:	bsac_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Schedule of Associates [Line Items]

+ References

No definition available.

+ Details

Name:	bsac_ScheduleOfAssociatesLineItems
Namespace Prefix:	bsac_
Data Type:	xbrli:stringItemType
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_CentroDeCompensacinAutomatizadoSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=bsac_SociedadInterbancariaDeDepsitoDeValoresSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=bsac_CmaraCompensacinDeAltoValorSAMember
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_ServiciosDeInfraestructuraDeMercadoOTCSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: