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Risk Management (Details 15) - Liquidity Risk [Member] - CLP ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Issue debt instruments [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | $ 9,500,723 | $ 8,115,233
Issue debt instruments [Member] | Not Later Than One Month [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 285,159 | 71,465
Issue debt instruments [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 759,519 | 39,267
Issue debt instruments [Member] | More Than 3 Months To 1 Year [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 1,044,674 | 745,830
Issue debt instruments [Member] | Due After 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 2,974,229 | 3,277,079
Issue debt instruments [Member] | Later than three years and not later than five years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 22,292 | 1,549,743
Other Commercial Commitments [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities |  | 2,638,286
Other Commercial Commitments [Member] | Not Later Than One Month [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 230,767 | 702,081
Other Commercial Commitments [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 555,535 | 371,475
Other Commercial Commitments [Member] | More Than 3 Months To 1 Year [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 1,262,006 | 1,034,383
Other Commercial Commitments [Member] | Between 1 and 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 509,631 | 226,962
Other Commercial Commitments [Member] | Due After 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 2,580,231 | 33,385
Other Commercial Commitments [Member] | Performance Guarantees [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 1,923,022 | 1,954,205
Other Commercial Commitments [Member] | Performance Guarantees [Member] | Not Later Than One Month [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 144,364 | 663,642
Other Commercial Commitments [Member] | Performance Guarantees [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 544,370 | 188,147
Other Commercial Commitments [Member] | Performance Guarantees [Member] | More Than 3 Months To 1 Year [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 899,437 | 905,554
Other Commercial Commitments [Member] | Performance Guarantees [Member] | Between 1 and 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 312,559 | 163,506
Other Commercial Commitments [Member] | Performance Guarantees [Member] | Due After 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 22,292 | 33,356
Other Commercial Commitments [Member] | Confirmed Foreign Letters of Credit [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 70,192 | 57,038
Other Commercial Commitments [Member] | Confirmed Foreign Letters of Credit [Member] | Not Later Than One Month [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 25,491 | 3,842
Other Commercial Commitments [Member] | Confirmed Foreign Letters of Credit [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 1,808 | 9,128
Other Commercial Commitments [Member] | Confirmed Foreign Letters of Credit [Member] | More Than 3 Months To 1 Year [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 11,306 | 33,177
Other Commercial Commitments [Member] | Confirmed Foreign Letters of Credit [Member] | Between 1 and 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 31,587 | 10,891
Other Commercial Commitments [Member] | Confirmed Foreign Letters of Credit [Member] | Due After 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities |  |
Other Commercial Commitments [Member] | Letters Of Credit Issued [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 135,266 | 223,420
Other Commercial Commitments [Member] | Letters Of Credit Issued [Member] | Not Later Than One Month [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 30,555 | 12,469
Other Commercial Commitments [Member] | Letters Of Credit Issued [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 348 | 110,970
Other Commercial Commitments [Member] | Letters Of Credit Issued [Member] | More Than 3 Months To 1 Year [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 33,439 | 54,015
Other Commercial Commitments [Member] | Letters Of Credit Issued [Member] | Between 1 and 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 70,924 | 45,937
Other Commercial Commitments [Member] | Letters Of Credit Issued [Member] | Due After 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities |  | 29
Other Commercial Commitments [Member] | Pledges And Other Commercial Commitments [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 451,751 | 133,623
Other Commercial Commitments [Member] | Pledges And Other Commercial Commitments [Member] | Not Later Than One Month [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 30,357 | 22,128
Other Commercial Commitments [Member] | Pledges And Other Commercial Commitments [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 9,009 | 63,230
Other Commercial Commitments [Member] | Pledges And Other Commercial Commitments [Member] | More Than 3 Months To 1 Year [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 317,824 | 41,637
Other Commercial Commitments [Member] | Pledges And Other Commercial Commitments [Member] | Between 1 and 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities | 94,561 | 6,628
Other Commercial Commitments [Member] | Pledges And Other Commercial Commitments [Member] | Due After 5 Years [Member] |  |
Disclosure of financial liabilities [line items] |  |
Financial liabilities |  |

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- Definition The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Financial instruments, class [member]; Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_25&doctype=Standard -URIDate 2019-03-27 + Details
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