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Risk Management (Details) - Schedule of classification of relief measures - CLP ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Schedule of classification of relief measures [Abstract] |  |
Fogape loans | $ 1,331,940 | $ 2,076,119
Fogape Reactiva | 876,698 |
Payment holiday | 7,877,036 | 9,098,028
Payment holiday – current | 104 | 734,986
Payment holiday - expired | $ 7,876,932 | $ 8,363,042

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- Definition Amount of covid-19 measures Fogape Reactiva + References No definition available. + Details
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- Definition Amount of covid 19 measures new loans subject to government guarantee. + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
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- Definition Amount of covid-19 measures payment holiday. + References No definition available. + Details
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Namespace Prefix: | bsac_
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- Definition Amount of covid-19 measures payment holiday current. + References No definition available. + Details
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- Definition Amount of covid-19 measures of payment holiday expired. + References No definition available. + Details
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