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Fair Value of Financial Assets and Liabilities: (Details) - Schedule of reconciliation between the beginning and ending balances of instruments classified as Level 3, whose fair value is reflected in the financial statements $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2020 CLP ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CLP ($)
Fair Value of Financial Assets and Liabilities: (Details) - Schedule of reconciliation between the beginning and ending balances of instruments classified as Level 3, whose fair value is reflected in the financial statements [Line Items] |  |  |  |
Assets at beginning of period |  | $ 41,013,874 |  | $ 35,601,430
Assets at end of period |  | 45,550,960 | $ 63,985,053 | 41,013,874
Financial assets measured at fair value through other comprehensive income, category [member] |  |  |  |
Fair Value of Financial Assets and Liabilities: (Details) - Schedule of reconciliation between the beginning and ending balances of instruments classified as Level 3, whose fair value is reflected in the financial statements [Line Items] |  |  |  |
Assets at beginning of period |  | 62,259 |  | 43,976
Gain (Loss) Recognized in Income | [1] | (385) |  | 930
Gain (Loss) Recognized in Equity | [2] | (652) |  | (510)
Purchases |  | 120,963 |  | 48,017
Sales |  | (169,213) |  | (44,681)
Transfer from Level 1 and 2 |  | 29,209 |  | 15,142
Transfer to Level 1 and 2 |  |  |  | (615)
Assets at end of period |  | 42,181 |  | 62,259
ifrs-full:DebtSecurities [Member] | Financial assets measured at fair value through other comprehensive income, category [member] |  |  |  |
Fair Value of Financial Assets and Liabilities: (Details) - Schedule of reconciliation between the beginning and ending balances of instruments classified as Level 3, whose fair value is reflected in the financial statements [Line Items] |  |  |  |
Assets at beginning of period |  | 7,069 |  | 23,021
Gain (Loss) Recognized in Income | [1] | 323 |  | 968
Gain (Loss) Recognized in Equity | [2] | (647) |  | (517)
Purchases |  | 71,539 |  |
Sales |  | (70,897) |  | (18,177)
Transfer from Level 1 and 2 |  | 29,209 |  | 1,774
Assets at end of period |  | 36,596 |  | 7,069
Instruments issued abroad |  |  |  |
Fair Value of Financial Assets and Liabilities: (Details) - Schedule of reconciliation between the beginning and ending balances of instruments classified as Level 3, whose fair value is reflected in the financial statements [Line Items] |  |  |  |
Assets at beginning of period |  | 96 |  | 89
Gain (Loss) Recognized in Income | [1] |  |  |
Gain (Loss) Recognized in Equity | [2] | (5) |  | 7
Assets at end of period |  | 91 |  | 96
Subtotal [Member] |  |  |  |
Fair Value of Financial Assets and Liabilities: (Details) - Schedule of reconciliation between the beginning and ending balances of instruments classified as Level 3, whose fair value is reflected in the financial statements [Line Items] |  |  |  |
Assets at beginning of period |  | 7,165 |  | 23,110
Gain (Loss) Recognized in Income | [1] | 323 |  | 968
Gain (Loss) Recognized in Equity | [2] | (652) |  | (510)
Purchases |  | 71,539 |  |
Sales |  | (70,897) |  | (18,177)
Transfer from Level 1 and 2 |  | 29,209 |  | 1,774
Assets at end of period |  | 36,687 |  | 7,165
Level 3 of fair value hierarchy [member] | Trading securities [member] |  |  |  |
Fair Value of Financial Assets and Liabilities: (Details) - Schedule of reconciliation between the beginning and ending balances of instruments classified as Level 3, whose fair value is reflected in the financial statements [Line Items] |  |  |  |
Assets at beginning of period |  | 55,094 |  | 20,866
Gain (Loss) Recognized in Income | [1] | (708) |  | (38)
Gain (Loss) Recognized in Equity | [2] |  |  |
Purchases |  | 49,424 |  | 48,017
Sales |  | (98,316) |  | (26,504)
Transfer from Level 1 and 2 |  |  |  | 13,368
Transfer to Level 1 and 2 |  |  |  | (615)
Assets at end of period |  | 5,494 |  | 55,094
Level 3 of fair value hierarchy [member] | Other Instruments Issued In Chile [Member] | Trading securities [member] |  |  |  |
Fair Value of Financial Assets and Liabilities: (Details) - Schedule of reconciliation between the beginning and ending balances of instruments classified as Level 3, whose fair value is reflected in the financial statements [Line Items] |  |  |  |
Assets at beginning of period |  | 55,094 |  | 20,866
Gain (Loss) Recognized in Income | [1] | (708) |  | (38)
Gain (Loss) Recognized in Equity | [2] |  |  |
Purchases |  | 49,424 |  | 48,017
Sales |  | (98,316) |  | (26,504)
Transfer from Level 1 and 2 |  |  |  | 13,368
Transfer to Level 1 and 2 |  |  |  | (615)
Assets at end of period |  | $ 5,494 |  | $ 55,094
[1] | It is recorded in the income statement under “Net financial operating income”
[2] | It is recorded in Equity under “Other Comprehensive Income”

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