XML 152 R127.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Financial Assets at Amortised Cost (Details) - Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans [Line Items] |  |
Beginning balance | $ 4,536,025 | $ 5,880,733
Transfers: |  |
Net changes of financial assets | 162,997 | 121,749
Write-off |  | 0
Other adjustments | 0 | 0
Ending balance | 2,687,485 | 4,536,025
Gross carrying amount |  |
Transfers: |  |
Transfers from stage 1 to stage 2 | 0 | 0
Transfers from stage 1 to stage 3 | 0 | 0
Transfers from stage 2 to stage 3 | 0 | 0
Transfers from stage 2 to stage 1 | 0 | 0
Transfers from stage 3 to stage 2 | 0 | 0
Transfers from stage 3 to stage 1 | 0 | 0
Net changes of financial assets | (37,704) | 35,495
Write-off | 0 | 0
Gross carrying amount | Mortgage loans |  |
Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans [Line Items] |  |
Beginning balance | 17,073,439 | 15,729,009
Transfers: |  |
Transfers from stage 1 to stage 2 | 0 | 0
Transfers from stage 1 to stage 3 | 0 | 0
Transfers from stage 2 to stage 3 | 0 | 0
Transfers from stage 2 to stage 1 | 0 | 0
Transfers from stage 3 to stage 2 | 0 | 0
Transfers from stage 3 to stage 1 | 0 | 0
Net changes of financial assets | 527,008 | 1,379,718
Write-off | (43,800) | (38,193)
Other adjustments | 3,122 | 2,905
Ending balance | 17,559,769 | 17,073,439
Gross carrying amount | Stage 1 | Mortgage loans |  |
Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans [Line Items] |  |
Beginning balance | 14,635,723 | 14,672,080
Transfers: |  |
Transfers from stage 1 to stage 2 | (3,369,333) | (2,265,541)
Transfers from stage 1 to stage 3 | (35,377) | (108,610)
Transfers from stage 2 to stage 3 | 0 | 0
Transfers from stage 2 to stage 1 | 2,873,839 | 936,562
Transfers from stage 3 to stage 2 | 0 | 0
Transfers from stage 3 to stage 1 | 0 | 20,596
Net changes of financial assets | 654,681 | 1,377,161
Write-off | 0 | 0
Other adjustments | 3,123 | 3,475
Ending balance | 14,762,656 | 14,635,723
Gross carrying amount | Stage 2 | Mortgage loans |  |
Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans [Line Items] |  |
Beginning balance | 1,713,185 | 367,467
Transfers: |  |
Transfers from stage 1 to stage 2 | 3,369,333 | 2,265,541
Transfers from stage 1 to stage 3 | 0 | 0
Transfers from stage 2 to stage 3 | (628,525) | (397,175)
Transfers from stage 2 to stage 1 | (2,873,839) | (936,562)
Transfers from stage 3 to stage 2 | 476,841 | 419,626
Transfers from stage 3 to stage 1 | 0 |
Net changes of financial assets | (112,062) | (5,294)
Write-off | 0 |
Other adjustments | (1) | (418)
Ending balance | 1,944,932 | 1,713,185
Gross carrying amount | Stage 3 | Mortgage loans |  |
Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans [Line Items] |  |
Beginning balance | 724,531 | 689,462
Transfers: |  |
Transfers from stage 1 to stage 2 | 0 | 0
Transfers from stage 1 to stage 3 | 35,377 | 108,610
Transfers from stage 2 to stage 3 | 628,525 | 397,175
Transfers from stage 2 to stage 1 | 0 | 0
Transfers from stage 3 to stage 2 | (476,841) | (419,626)
Transfers from stage 3 to stage 1 | 0 | (20,596)
Net changes of financial assets | (15,611) | 7,851
Write-off | (43,800) | (38,193)
Other adjustments | 0 | (152)
Ending balance | 852,181 | 724,531
ECL allowance |  |
Transfers: |  |
Transfers from stage 1 to stage 2 | 0 | 0
Transfers from stage 1 to stage 3 | 0 | 0
Transfers from stage 2 to stage 3 | 0 | 0
Transfers from stage 2 to stage 1 | 0 | 0
Transfers from stage 3 to stage 2 | 0 | 0
Transfers from stage 3 to stage 1 | 0 | 0
Net changes of the exposure and modifications in credit risk | (1) | 1
Write-off | 0 | 0
ECL allowance | Mortgage loans |  |
Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans [Line Items] |  |
Beginning balance | 216,133 | 162,756
Transfers: |  |
Transfers from stage 1 to stage 2 | 75,838 | 45,920
Transfers from stage 1 to stage 3 | 1,936 | 5,965
Transfers from stage 2 to stage 3 | 37,970 | 16,881
Transfers from stage 2 to stage 1 | (66,173) | (51,089)
Transfers from stage 3 to stage 2 | (43,360) | (12,812)
Transfers from stage 3 to stage 1 | 0 | (1,279)
Net changes of the exposure and modifications in credit risk | 47,826 | 88,025
Write-off | (43,800) | (38,193)
Other adjustments | 0 | (41)
Ending balance | 226,370 | 216,133
ECL allowance | Stage 1 | Mortgage loans |  |
Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans [Line Items] |  |
Beginning balance | 8,651 | 19,388
Transfers: |  |
Transfers from stage 1 to stage 2 | (6,317) | (12,382)
Transfers from stage 1 to stage 3 | (152) | (848)
Transfers from stage 2 to stage 3 | 0 | 0
Transfers from stage 2 to stage 1 | 6,727 | 6,893
Transfers from stage 3 to stage 2 | 0 | 0
Transfers from stage 3 to stage 1 | 0 | 135
Net changes of the exposure and modifications in credit risk | 1,438 | (4,536)
Write-off | 0 | 0
Other adjustments | 0 | 1
Ending balance | 10,347 | 8,651
ECL allowance | Stage 2 | Mortgage loans |  |
Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans [Line Items] |  |
Beginning balance | 53,371 | 10,462
Transfers: |  |
Transfers from stage 1 to stage 2 | 82,155 | 58,302
Transfers from stage 1 to stage 3 | 0 | 0
Transfers from stage 2 to stage 3 | (31,271) | (18,422)
Transfers from stage 2 to stage 1 | (72,900) | (57,982)
Transfers from stage 3 to stage 2 | 39,601 | 58,566
Transfers from stage 3 to stage 1 | 0 | 0
Net changes of the exposure and modifications in credit risk | (10,626) | 2,490
Write-off | 0 | 0
Other adjustments | 0 | (45)
Ending balance | 60,330 | 53,371
ECL allowance | Stage 3 | Mortgage loans |  |
Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans [Line Items] |  |
Beginning balance | 154,111 | 132,906
Transfers: |  |
Transfers from stage 1 to stage 2 | 0 | 0
Transfers from stage 1 to stage 3 | 2,088 | 6,813
Transfers from stage 2 to stage 3 | 69,241 | 35,303
Transfers from stage 2 to stage 1 | 0 | 0
Transfers from stage 3 to stage 2 | (82,961) | (71,378)
Transfers from stage 3 to stage 1 | 0 | (1,414)
Net changes of the exposure and modifications in credit risk | 57,014 | 90,071
Write-off | (43,800) | (38,193)
Other adjustments | 0 | 3
Ending balance | $ 155,693 | $ 154,111

X
- Definition Amount of fair value transfers from stage 1 to stage 2. + References No definition available. + Details
Name: | bsac_FairValueTransfersFromStage1ToStage2
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of transfers from stage 1 to stage 3. + References No definition available. + Details
Name: | bsac_FairValueTransfersFromStage1ToStage3
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of transfers from stage 2 to stage 1. + References No definition available. + Details
Name: | bsac_FairValueTransfersFromStage2ToStage1
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of transfers from stage 2 to stage 3. + References No definition available. + Details
Name: | bsac_FairValueTransfersFromStage2ToStage3
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of transfers from stage 3 to stage1. + References No definition available. + Details
Name: | bsac_FairValueTransfersFromStage3ToStage1
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of transfers from stage 3 to stage 2. + References No definition available. + Details
Name: | bsac_FairValueTransfersFromStage3ToStage2
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other Adjustments + References No definition available. + Details
Name: | bsac_OtherAdjustments
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Schedule of Gross Carrying Amount Expected Credit Loss in Mortgage Loans [Line Items] + References No definition available. + Details
Name: | bsac_ScheduleOfGrossCarryingAmountExpectedCreditLossInMortgageLoansLineItems
Namespace Prefix: | bsac_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Transfers Abstract7 + References No definition available. + Details
Name: | bsac_TransfersAbstract7
Namespace Prefix: | bsac_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Writte Off. + References No definition available. + Details
Name: | bsac_Writeoff
Namespace Prefix: | bsac_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of financial assets at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 8 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_8_h&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The increase (decrease) in financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35H&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35I -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35I&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseInFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of other comprehensive income, net of tax, related to changes in the fair value of financial liabilities attributable to the changes in the credit risk of those liabilities. [Refer: Other comprehensive income; Credit risk [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 91 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_91_a&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_7&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=bsac_GrossCarryingValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfFinancialAssetsAxis=bsac_MortgageLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis=bsac_Stage1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis=bsac_Stage2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis=bsac_Stage3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=bsac_ECLAllowanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |