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Equity (Details) - Schedule of Placement of Perpetual Bond $ in Billions | 12 Months Ended
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Dec. 31, 2024 USD ($)
Schedule of Placement of Perpetual Bond [Line Items] |
Amount | $ 0.7
Principal Amount USD | 0.7
AT1 Bond |
Schedule of Placement of Perpetual Bond [Line Items] |
Amount | $ 0.7
Interest Rate (Annual) | 4.63%
Principal Amount USD | $ 0.7

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- Definition Placement Of Perpetual Bond Amount + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Interest rate annual. + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Principal amount. + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Schedule of Placement of Perpetual Bond [Line Items] + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |