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Net Income from Non-Current Assets and Groups Available for Sale Not Admissible as Discontinued Operations (Details) - Schedule of net income from assets received of payment and sale of non-currents assets - CLP ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Net income from assets received in lieu of payment |  |  |
Income from assets received in lieu of payment | $ 4,873 | $ 2,786 | $ 1,188
Other income from assets received in lieu of payment |  | 455 | 3,135
Provision on assets received in lieu of payment | (743) | (192) | (1,356)
Expenses for maintenance of assets received in lieu of payment | (2,017) | (1,425) | (1,485)
Subtotal | 2,113 | 1,624 | 1,482
Sale of non-current assets |  |  |
Net income from sale of fixed assets | 6,405 | 673 | 865
Subtotal | 6,405 | 673 | 865
TOTAL | $ 8,518 | $ 2,297 | $ 2,347

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- Definition Expenses for maintenance of assets received in lieu of payment. + References No definition available. + Details
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- Definition Amount of income from assets received in lieu of payment. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- References No definition available. + Details
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- Definition Net income from sale of fixed assets. + References No definition available. + Details
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- Definition Net income subtotal. + References No definition available. + Details
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- Definition Net income subtotal non current. + References No definition available. + Details
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- Definition Net income total. + References No definition available. + Details
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- Definition Other income from assets received in lieu of payment. + References No definition available. + Details
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Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Provision on assets received in lieu of payment. + 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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- References No definition available. + Details
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Balance Type: | na
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