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Equity (Details) - Schedule of shareholder composition - shares
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Equity (Details) - Schedule of shareholder composition [Line Items]      
Shares 168,600,275,923 167,735,787,923 165,995,455,123
American Depository Receipts (ADRs) [1] 19,845,850,871 20,710,338,871 22,450,671,671
Total 188,446,126,794 188,446,126,794 188,446,126,794
Percentage of equity holding 100.00% 100.00% 100.00%
Santander Chile Holding S.A. [Member]      
Equity (Details) - Schedule of shareholder composition [Line Items]      
Shares 66,822,519,695 66,822,519,695 66,822,519,695
American Depository Receipts (ADRs) [1]
Total 66,822,519,695 66,822,519,695 66,822,519,695
Percentage of equity holding 35.46% 35.46% 35.46%
Teatinos Siglo XXI Inversiones Limitada [Member]      
Equity (Details) - Schedule of shareholder composition [Line Items]      
Shares 59,770,481,573    
American Depository Receipts (ADRs) [1]    
Total 59,770,481,573    
Percentage of equity holding 31.72%    
The Bank New York Mellon [Member]      
Equity (Details) - Schedule of shareholder composition [Line Items]      
Shares
American Depository Receipts (ADRs) [1] 19,845,850,871 20,710,338,871 22,450,671,671
Total 19,845,850,871 20,710,338,871 22,450,671,671
Percentage of equity holding 10.53% 10.99% 11.91%
Banks on behalf of third parties [Member]      
Equity (Details) - Schedule of shareholder composition [Line Items]      
Shares 16,841,385,216 17,318,500,798 15,925,407,468
American Depository Receipts (ADRs) [1]
Total 16,841,385,216 17,318,500,798 15,925,407,468
Percentage of equity holding 8.94% 9.19% 8.45%
Pension funds (AFP) on behalf of third parties [Member]      
Equity (Details) - Schedule of shareholder composition [Line Items]      
Shares 13,742,809,166 11,949,134,854 9,929,343,874
American Depository Receipts (ADRs) [1]
Total 13,742,809,166 11,949,134,854 9,929,343,874
Percentage of equity holding 7.29% 6.34% 5.27%
Stock brokers on behalf of third parties [Member]      
Equity (Details) - Schedule of shareholder composition [Line Items]      
Shares 6,122,497,451 5,870,596,720 6,892,162,980
American Depository Receipts (ADRs) [1]
Total 6,122,497,451 5,870,596,720 6,892,162,980
Percentage of equity holding 3.25% 3.12% 3.66%
Other minority holders [Member]      
Equity (Details) - Schedule of shareholder composition [Line Items]      
Shares 5,300,582,822 6,004,554,283 6,655,539,533
American Depository Receipts (ADRs) [1]
Total 5,300,582,822 6,004,554,283 6,655,539,533
Percentage of equity holding 2.81% 3.18% 3.53%
Teatinos Siglo XXI Inversiones Limitada [Member]      
Equity (Details) - Schedule of shareholder composition [Line Items]      
Shares   59,770,481,573 59,770,481,573
American Depository Receipts (ADRs) [1]  
Total   59,770,481,573 59,770,481,573
Percentage of equity holding   31.72% 31.72%
[1] American Depository Receipts (ADR) are certificates issued by a U.S. commercial bank to be traded on the U.S. securities markets.