XML 144 R121.htm IDEA: XBRL DOCUMENT
v3.19.1

LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS and INTERBANK LOANS (under IAS 39) (Details) - CLP ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | $ 27,725,914 |
Allowances established | $ 723 | 1,440 |
Net assets |  | 26,772,544 |
Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 218,790 |
Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 571,895 |
Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 790,685 | $ 786,470
Net assets |  | 790,685 |
Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 14,071,327 |
Net assets |  | 13,470,779 |
Commercial Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 218,790 | 246,336
Net assets |  | 218,790 |
Commercial Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 219,073 | 183,106
Net assets |  | 219,073 |
Commercial Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 437,863 |
Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 9,096,895 |
Allowances established |  | 69,066 |
Net assets |  | 9,027,829 |
Mortgage Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  |  |
Mortgage Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 69,066 |
Allowances established |  | 69,066 | 57,009
Mortgage Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 69,066 |
Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 4,557,692 |
Allowances established |  | 283,756 |
Net assets |  | 4,273,936 |
Consumer Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  |  |
Consumer Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 283,756 |
Allowances established |  | 283,756 | $ 300,019
Consumer Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 283,756 |
Foreign Trade Loans [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 1,524,043 |
Foreign Trade Loans [Member] | Commercial Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 49,026 |
Foreign Trade Loans [Member] | Commercial Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 1,444 |
Foreign Trade Loans [Member] | Commercial Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 50,470 |
Current Account Debtors [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 181,230 |
Current Account Debtors [Member] | Commercial Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 2,726 |
Current Account Debtors [Member] | Commercial Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 11,740 |
Current Account Debtors [Member] | Commercial Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 14,466 |
Factoring Transactions [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 443,895 |
Factoring Transactions [Member] | Commercial Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 4,788 |
Factoring Transactions [Member] | Commercial Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 1,207 |
Factoring Transactions [Member] | Commercial Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 5,995 |
Student loans [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 82,368 |
Student loans [Member] | Commercial Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  |  |
Student loans [Member] | Commercial Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 5,922 |
Student loans [Member] | Commercial Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 5,922 |
Commercial Lease Transactions [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 1,426,682 |
Commercial Lease Transactions [Member] | Commercial Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 17,529 |
Commercial Lease Transactions [Member] | Commercial Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 12,793 |
Commercial Lease Transactions [Member] | Commercial Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 30,322 |
Other Commercial Loans Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 123,895 |
Other Commercial Loans Portfolio [Member] | Commercial Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 11,467 |
Other Commercial Loans Portfolio [Member] | Commercial Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 17,231 |
Other Commercial Loans Portfolio [Member] | Commercial Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 28,698 |
Transferable Mortgage Loans [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 23,937 |
Transferable Mortgage Loans [Member] | Mortgage Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  |  |
Transferable Mortgage Loans [Member] | Mortgage Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 123 |
Transferable Mortgage Loans [Member] | Mortgage Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 123 |
Endorsable Mortgage Mutual Loans [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 114,484 |
Endorsable Mortgage Mutual Loans [Member] | Mortgage Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  |  |
Endorsable Mortgage Mutual Loans [Member] | Mortgage Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 594 |
Endorsable Mortgage Mutual Loans [Member] | Mortgage Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 594 |
Other Mortgage Bonds Portfolio [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 8,889,408 |
Other Mortgage Bonds Portfolio [Member] | Mortgage Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  |  |
Other Mortgage Bonds Portfolio [Member] | Mortgage Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 68,349 |
Other Mortgage Bonds Portfolio [Member] | Mortgage Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 68,349 |
Consumer Loans In Installments [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 2,669,780 |
Consumer Loans In Installments [Member] | Consumer Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  |  |
Consumer Loans In Installments [Member] | Consumer Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 240,962 |
Consumer Loans In Installments [Member] | Consumer Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 240,962 |
Credit Card Debtors [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 1,331,579 |
Credit Card Debtors [Member] | Consumer Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  |  |
Credit Card Debtors [Member] | Consumer Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 33,401 |
Credit Card Debtors [Member] | Consumer Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 33,401 |
Current Account Debtors Consumer Loans [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 4,653 |
Current Account Debtors Consumer Loans [Member] | Consumer Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  |  |
Current Account Debtors Consumer Loans [Member] | Consumer Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 62 |
Current Account Debtors Consumer Loans [Member] | Consumer Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 62 |
Other Consumer Loans [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 267,924 |
Other Consumer Loans [Member] | Consumer Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  |  |
Other Consumer Loans [Member] | Consumer Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 9,331 |
Other Consumer Loans [Member] | Consumer Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 9,331 |
Commercial Loans Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Net assets |  | 9,688,666 |
Commercial Loans Portfolio [Member] | Commercial Loans [Member] | Individual Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 133,254 |
Commercial Loans Portfolio [Member] | Commercial Loans [Member] | Group Allowance [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 168,736 |
Commercial Loans Portfolio [Member] | Commercial Loans [Member] | Total Provision [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Allowances established |  | 301,990 |
Normal Portfolio [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 25,760,056 |
Normal Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 12,895,139 |
Normal Portfolio [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 8,634,351 |
Normal Portfolio [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 4,230,566 |
Normal Portfolio [Member] | Commercial Loans Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 9,244,460 |
Normal Portfolio [Member] | Foreign Trade Loans [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 1,506,359 |
Normal Portfolio [Member] | Current Account Debtors [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 179,982 |
Normal Portfolio [Member] | Factoring Transactions [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 444,644 |
Normal Portfolio [Member] | Student loans [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 77,226 |
Normal Portfolio [Member] | Commercial Lease Transactions [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 1,335,653 |
Normal Portfolio [Member] | Other Commercial Loans Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 106,815 |
Normal Portfolio [Member] | Transferable Mortgage Loans [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 22,620 |
Normal Portfolio [Member] | Endorsable Mortgage Mutual Loans [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 110,659 |
Normal Portfolio [Member] | Other Mortgage Bonds Portfolio [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 8,501,072 |
Normal Portfolio [Member] | Consumer Loans In Installments [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 2,613,041 |
Normal Portfolio [Member] | Credit Card Debtors [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 1,341,098 |
Normal Portfolio [Member] | Current Account Debtors Consumer Loans [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 4,638 |
Normal Portfolio [Member] | Other Consumer Loans [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 271,789 |
Impaired Portfolio [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 1,803,173 |
Impaired Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 1,013,503 |
Impaired Portfolio [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 462,544 |
Impaired Portfolio [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 327,126 |
Impaired Portfolio [Member] | Foreign Trade Loans [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 68,154 |
Impaired Portfolio [Member] | Current Account Debtors [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 15,714 |
Impaired Portfolio [Member] | Factoring Transactions [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 5,246 |
Impaired Portfolio [Member] | Student loans [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 11,064 |
Impaired Portfolio [Member] | Commercial Lease Transactions [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 121,351 |
Impaired Portfolio [Member] | Other Commercial Loans Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 45,778 |
Impaired Portfolio [Member] | Transferable Mortgage Loans [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 1,440 |
Impaired Portfolio [Member] | Endorsable Mortgage Mutual Loans [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 4,419 |
Impaired Portfolio [Member] | Other Mortgage Bonds Portfolio [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 456,685 |
Impaired Portfolio [Member] | Consumer Loans In Installments [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 297,701 |
Impaired Portfolio [Member] | Credit Card Debtors [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 23,882 |
Impaired Portfolio [Member] | Current Account Debtors Consumer Loans [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 77 |
Impaired Portfolio [Member] | Other Consumer Loans [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 5,466 |
Impaired Portfolio [Member] | Commercial Loans Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 746,196 |
Total Impaired Portfolio [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 27,563,229 |
Total Impaired Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 13,908,642 |
Total Impaired Portfolio [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 9,096,895 |
Total Impaired Portfolio [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 4,557,692 |
Total Impaired Portfolio [Member] | Foreign Trade Loans [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 1,574,513 |
Total Impaired Portfolio [Member] | Current Account Debtors [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 195,696 |
Total Impaired Portfolio [Member] | Factoring Transactions [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 449,890 |
Total Impaired Portfolio [Member] | Student loans [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 88,290 |
Total Impaired Portfolio [Member] | Commercial Lease Transactions [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 1,457,004 |
Total Impaired Portfolio [Member] | Other Commercial Loans Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 152,593 |
Total Impaired Portfolio [Member] | Transferable Mortgage Loans [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 24,060 |
Total Impaired Portfolio [Member] | Endorsable Mortgage Mutual Loans [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 115,078 |
Total Impaired Portfolio [Member] | Other Mortgage Bonds Portfolio [Member] | Mortgage Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 8,957,757 |
Total Impaired Portfolio [Member] | Consumer Loans In Installments [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 2,910,742 |
Total Impaired Portfolio [Member] | Credit Card Debtors [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 1,364,980 |
Total Impaired Portfolio [Member] | Current Account Debtors Consumer Loans [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 4,715 |
Total Impaired Portfolio [Member] | Other Consumer Loans [Member] | Consumer Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | 277,255 |
Total Impaired Portfolio [Member] | Commercial Loans Portfolio [Member] | Commercial Loans [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Assets before Allowances |  | $ 9,990,656 |

X
- Definition Represent information about loans and advances to customers gross. + References No definition available. + Details
Name: | bsac_LoansAndAdvancesToCustomersGross
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_16&doctype=Standard&book=b -URIDate 2018-03-16 + Details
Name: | ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfFinancialAssetsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of loans and advances the entity has made to customers. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_LoansAndAdvancesToCustomers
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_ImpairmentOfFinancialAssetsAxis=ifrs-full_FinancialAssetsIndividuallyAssessedForCreditLossesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ImpairmentOfFinancialAssetsAxis=ifrs-full_FinancialAssetsCollectivelyAssessedForCreditLossesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ImpairmentOfFinancialAssetsAxis=ifrs-full_FinancialAssetsImpairedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=bsac_CommercialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_MortgagesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_ConsumerLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_ForeignTradeLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_CurrentAccountDebtorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_FactoringTransactionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_StudentLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_CommercialLeaseTransactionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_OtherCommercialLoansPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_TransferableMortgageLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_EndorsableMortgageMutualLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_OtherMortgagebondsPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_ConsumerLoansInInstallmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_CreditCardDebtorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_CurrentAccountDebtorsConsumerLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_OtherConsumerLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_CommercialloansPortfolio1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_CategoriesOfImpairmentAssetsPortfolioAxis=bsac_NormalPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_ClassesOfFinancialAssetsPortfolioAxis=bsac_CommercialLoansPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_CategoriesOfImpairmentAssetsPortfolioAxis=bsac_ImpairedPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsac_CategoriesOfImpairmentAssetsPortfolioAxis=bsac_TotalImpairedPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |