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Investments under Resale Agreements and Obligations under Repurchase Agreements (Details 1) - CLP ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of fair value measurement of assets [line items]
Total	$ 380,055	$ 49,281
Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	379,924	49,149
Chilean Central Bank Bonds [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total		49,040
Chilean Central Bank Notes [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Other Chilean Central Bank And Government Securities [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	379,924	109
Instruments From Other Foreign Institutions [Member]
Disclosure of fair value measurement of assets [line items]
Total
Instruments From Other Foreign Institutions [Member] | Securities From Government Or Foreign Central Banks [Member]
Disclosure of fair value measurement of assets [line items]
Total
Other Chilean Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	131	132
Other Chilean Securities [Member] | Time Deposits In Chilean Financial Institutions [Member]
Disclosure of fair value measurement of assets [line items]
Total	131	132
Trading Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total
Trading Portfolio [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Trading Portfolio [Member] | Chilean Central Bank Bonds [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Trading Portfolio [Member] | Chilean Central Bank Notes [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Trading Portfolio [Member] | Other Chilean Central Bank And Government Securities [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Trading Portfolio [Member] | Instruments From Other Foreign Institutions [Member]
Disclosure of fair value measurement of assets [line items]
Total
Trading Portfolio [Member] | Instruments From Other Foreign Institutions [Member] | Securities From Government Or Foreign Central Banks [Member]
Disclosure of fair value measurement of assets [line items]
Total
Trading Portfolio [Member] | Other Chilean Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Trading Portfolio [Member] | Other Chilean Securities [Member] | Time Deposits In Chilean Financial Institutions [Member]
Disclosure of fair value measurement of assets [line items]
Total
Available For Sale Portfolio [Member]
Disclosure of fair value measurement of assets [line items]
Total	379,924	49,281
Available For Sale Portfolio [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	379,924	49,149
Available For Sale Portfolio [Member] | Chilean Central Bank Bonds [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total		49,040
Available For Sale Portfolio [Member] | Chilean Central Bank Notes [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total
Available For Sale Portfolio [Member] | Other Chilean Central Bank And Government Securities [Member] | Chilean Central Bank And Government Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	379,924	109
Available For Sale Portfolio [Member] | Instruments From Other Foreign Institutions [Member]
Disclosure of fair value measurement of assets [line items]
Total
Available For Sale Portfolio [Member] | Instruments From Other Foreign Institutions [Member] | Securities From Government Or Foreign Central Banks [Member]
Disclosure of fair value measurement of assets [line items]
Total
Available For Sale Portfolio [Member] | Other Chilean Securities [Member]
Disclosure of fair value measurement of assets [line items]
Total	131	132
Available For Sale Portfolio [Member] | Other Chilean Securities [Member] | Time Deposits In Chilean Financial Institutions [Member]
Disclosure of fair value measurement of assets [line items]
Total	$ 131	$ 132

X

- Definition

The fair value of collateral sold or repledged that was permitted to be sold or repledged in the absence of default by the owner of the collateral. [Refer: At fair value [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 15
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_15_b&doctype=Standard
-URIDate 2019-03-27

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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