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Summary of Significant Accounting Policies (Details Textual) $ in Millions | 12 Months Ended
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Dec. 31, 2019 CLP ($) Segment | Dec. 31, 2018 CLP ($) Segment | Dec. 31, 2017 CLP ($)
Disclosure of detailed information about financial instruments |  |  |
Gain on net foreign exchange income | $ | $ 30,886 | $ 2,701 | $ 104,875
Threshold retiring period for specified employees to whom payments are made | 30 years |  |
Estimated useful life | 6 years |  |
Threshold nonperforming period for substandard loans | 30 days |  |
Minimum number of installments overdue to be classified as non-compliant | 1 |  |
Threshold past due period for non-complying loans | 90 days |  |
Minimum [Member] |  |  |
Disclosure of detailed information about financial instruments |  |  |
Voting rights | 20.00% |  |
Maximum [Member] |  |  |
Disclosure of detailed information about financial instruments |  |  |
Voting rights | 50.00% |  |
Staff Severance Indemnities Plan [Member] |  |  |
Disclosure of detailed information about financial instruments |  |  |
Discount rate for long term | 3.17% | 4.25% |
Past service costs | $ | $ 0 |  |
EUR [Member] |  |  |
Disclosure of detailed information about financial instruments |  |  |
Foreign exchange rate | 843.31 | 793.96 |
USD [Member] |  |  |
Disclosure of detailed information about financial instruments |  |  |
Foreign exchange rate | 751.88 | 693.60 |
JPY [Member] |  |  |
Disclosure of detailed information about financial instruments |  |  |
Foreign exchange rate | 6.91 | 6.29 |

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