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Summary of Significant Accounting Policies (Details) - Schedule of Subsidiaries | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Santander Corredora de Seguros Limitada |  |  |
Schedule of Subsidiaries [Line Items] |  |  |
Direct | 99.75% | 99.75% | 99.75%
Indirect | 0.01% | 0.01% | 0.01%
Total | 99.76% | 99.76% | 99.76%
Santander Corredores de Bolsa Limitada |  |  |
Schedule of Subsidiaries [Line Items] |  |  |
Direct | 50.59% | 50.59% | 50.59%
Indirect | 0.41% | 0.41% | 0.41%
Total | 51.00% | 51.00% | 51.00%
Santander Asesorias Financieras Limitada |  |  |
Schedule of Subsidiaries [Line Items] |  |  |
Direct | 99.03% | 99.03% | 99.03%
Indirect | 0.00% | 0.00% | 0.00%
Total | 99.03% | 99.03% | 99.03%
Santander S.A. Sociedad Securitizadora |  |  |
Schedule of Subsidiaries [Line Items] |  |  |
Direct | 99.64% | 99.64% | 99.64%
Indirect | 0.00% | 0.00% | 0.00%
Total | 99.64% | 99.64% | 99.64%
Klare Corredora de Seguros S.A. |  |  |
Schedule of Subsidiaries [Line Items] |  |  |
Direct | 0.00% | 50.10% | 50.10%
Indirect | 0.00% | 0.00% | 0.00%
Total | 0.00% | 50.10% | 50.10%
Santander Consumer Chile S.A. |  |  |
Schedule of Subsidiaries [Line Items] |  |  |
Direct | 51.00% | 51.00% | 51.00%
Indirect | 0.00% | 0.00% | 0.00%
Total | 51.00% | 51.00% | 51.00%
Sociedad operadora de Tarjetas de Pago Santander Getnet Chile S.A. |  |  |
Schedule of Subsidiaries [Line Items] |  |  |
Direct | 99.99% | 99.99% | 99.99%
Indirect | 0.01% | 0.01% | 0.01%
Total | 100.00% | 100.00% | 100.00%

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