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Financial Liabilities at Amortised Cost (Details) - Schedule of Senior Bonds by Currency - CLP ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Schedule of Senior Bonds by Currency [Line Items] |  |
Issued debt instruments | $ 8,133,275 | $ 8,001,045
Senior bonds |  |
Schedule of Senior Bonds by Currency [Line Items] |  |
Issued debt instruments | 8,067,274 | 7,925,385
Senior bonds | Santander bonds in UF |  |
Schedule of Senior Bonds by Currency [Line Items] |  |
Issued debt instruments | 3,830,030 | 3,632,979
Senior bonds | Santander bonds in USD |  |
Schedule of Senior Bonds by Currency [Line Items] |  |
Issued debt instruments | 1,971,887 | 2,424,045
Senior bonds | CHF |  |
Schedule of Senior Bonds by Currency [Line Items] |  |
Issued debt instruments | 866,942 | 637,203
Senior bonds | Santander bonds in Ch$ |  |
Schedule of Senior Bonds by Currency [Line Items] |  |
Issued debt instruments | 827,738 | 619,386
Senior bonds | Santander bonds in AUD |  |
Schedule of Senior Bonds by Currency [Line Items] |  |
Issued debt instruments | 93,244 | 116,515
Senior bonds | Current bonds in JPY |  |
Schedule of Senior Bonds by Currency [Line Items] |  |
Issued debt instruments | 296,831 | 323,922
Senior bonds | Santander bonds in EUR |  |
Schedule of Senior Bonds by Currency [Line Items] |  |
Issued debt instruments | $ 180,602 | $ 171,335

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