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Risk Management (Details) - Schedule of Solvency Indicators and Regulatory Compliance Indicators According to Basel III | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of risk management strategy related to hedge accounting [abstract] |  |
Leverage indicator (T1_I18/T1_I7) | 6.95% | 6.66%
Leverage indicator that the bank must meet, considering the minimum requirements | 3.00% | 3.00%
Basic capital indicator (T1_I18/T1_I11,b) | 10.46% | 11.12%
Basic capital indicator that the bank must meet, considering the minimum requirements | 6.13% | 5.25%
Tier 1 capital indicator (T1_I25/T1_I11,b) | 12.16% | 12.66%
Tier 1 capital indicator that the bank must meet, considering the minimum requirements | 7.63% | 6.75%
Effective equity indicators (T1_I31/T1_I11,b) | 17.06% | 17.64%
Effective equity indicator that the bank must meet, considering the minimum requirements | 9.63% | 8.75%
Effective equity indicator that the bank must meet, considering the charge for article 35 bis, if applicable | 8.00% | 8.00%
Effective equity indicator that the bank must meet, considering the minimum requirements, conservation buffer and anti-cyclical buffer | 12.13% | 10.63%
Voluntary (additional) provisions allocated to Tier 2 capital (T2) in relation to APRCs (T1_I26/ (T1_I8,a or I8,b) | 0.98% | 0.97%
Subordinated bonds allocated to Tier 2 (T2) capital in relation to Tier 2 capital | 39.98% | 38.18%
Additional Tier 1 capital (AT1) in relation to basic capital (T1_I24/T1_I18) | 16.24% | 13.84%
Voluntary provisions (additional) and subordinated bonds that are charged to additional capital level 1 (AT1) in relation to the RWAs (T1_I19+T1_I20 / T1_I11,b) | 0.00% | 0.00%

X
- Definition The percentage of additional Tier 1 capital (AT1) in relation to basic capital. + References No definition available. + Details
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X
- Definition Basic capital indicator. + References No definition available. + Details
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Data Type: | dtr-types:percentItemType
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X
- Definition The percentage of basic capital indicator that the bank must meet, considering the minimum requirements. + References No definition available. + Details
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- Definition The percentage of effective equity indicator that the bank must meet, considering the charge for article 35 bis, if applicable. + References No definition available. + Details
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- Definition The percentage effective equity indicator that the bank must meet, considering the minimum requirements, conservation buffer and anti-cyclical buffer. + References No definition available. + Details
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- Definition The percentage of effective equity indicator that the bank must meet, considering the minimum requirements. + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | dtr-types:percentItemType
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- Definition Effective equity indicators. + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | dtr-types:percentItemType
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- Definition Leverage indicator. + References No definition available. + Details
Name: | bsac_LeverageIndicator
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X
- Definition The percentage of leverage indicator that the bank must meet, considering the minimum requirements. + References No definition available. + Details
Name: | bsac_LeverageIndicatorMinimumRequirement
Namespace Prefix: | bsac_
Data Type: | dtr-types:percentItemType
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- Definition The percentage of subordinated bonds allocated to Tier 2 (T2) capital in relation to Tier 2 capital. + References No definition available. + Details
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Namespace Prefix: | bsac_
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- Definition Tier 1 capital indicator. + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | dtr-types:percentItemType
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Period Type: | instant

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- Definition The percentage of tier 1 capital indicator that the bank must meet, considering the minimum requirements. + References No definition available. + Details
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Data Type: | dtr-types:percentItemType
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- Definition The percentage of voluntary provisions (additional) and subordinated bonds that are charged to additional capital. + References No definition available. + Details
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- Definition The percentage voluntary (additional) provisions allocated to Tier 2 capital (T2) in relation to APRCs. + References No definition available. + Details
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Namespace Prefix: | bsac_
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- References No definition available. + Details
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