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Provisions and Contingent Provisions (Details) - CLP ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | --- | ---
Provisions And Contingent Provisions |  |  |  |
Provisions for personnel salaries and expenses | $ 101,223 | $ 93,379 |  |
Provisions for mandatory dividends | 185,727 | 178,600 |  |
Provisions for contingent loan | 23,792 | 24,329 |  |
Provision for contingencies | 15,388 | 8,963 |  |
Total | $ 326,130 | $ 305,271 | $ 303,798 | $ 292,210

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- Definition Provision for contingencies. + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
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- References No definition available. + Details
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- Definition Provisions for mandatory dividends. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Provisions for personnel salaries and expenses. + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition The amount of liabilities of uncertain timing or amount. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 54 -Subparagraph l -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_l&doctype=Standard -URIDate 2019-03-27 + Details
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