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Risk Management - Collateral and Other Enhancements (Details) - CLP ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Disclosure of guarantee values [line items] |  |  |
Maximum exposure to credit risk |  | $ 1,366,343 | $ 1,053,191
Loans to customers |  |  |
Disclosure of guarantee values [line items] |  |  |
Maximum exposure to credit risk |  | 30,033,272 | 27,926,632
Fair value of loans covered by collateral |  |  |
Mortgages |  | 13,948,027 | 13,391,818
Pledge | [1] | 113,848 | 107,400
Securities |  | 374,141 | 455,039
Warrants |  | 2,182 | 2,263
Others |  | 302,423 | 313,149
Net collateral |  | 14,740,621 | 14,269,669
Net exposure |  | 15,292,651 | 13,656,963
Corporate lending |  |  |
Disclosure of guarantee values [line items] |  |  |
Maximum exposure to credit risk |  |  | 11,705,859
Fair value of loans covered by collateral |  |  |
Mortgages |  | 2,453,533 | 2,589,429
Pledge | [1] | 82,365 | 75,105
Securities |  | 345,246 | 423,556
Warrants |  | 2,182 | 2,263
Others |  | 207,052 | 221,919
Net collateral |  | 3,090,378 | 3,312,272
Net exposure |  | 9,027,346 | 8,393,587
Small business lending |  |  |
Disclosure of guarantee values [line items] |  |  |
Maximum exposure to credit risk |  | 4,176,488 | 3,732,539
Fair value of loans covered by collateral |  |  |
Mortgages |  | 3,133,480 | 2,977,286
Pledge | [1] | 30,466 | 31,270
Securities |  | 26,674 | 28,974
Warrants |  |  |
Others |  | 74,725 | 71,140
Net collateral |  | 3,265,345 | 3,108,670
Net exposure |  | 911,143 | 623,869
Consumer Loans [Member] |  |  |
Disclosure of guarantee values [line items] |  |  |
Maximum exposure to credit risk |  | 4,532,333 | 4,436,161
Fair value of loans covered by collateral |  |  |
Mortgages |  | 341,495 | 332,030
Pledge | [1] | 966 | 967
Securities |  | 2,045 | 2,244
Warrants |  |  |
Others |  | 20,646 | 20,090
Net collateral |  | 365,152 | 355,331
Net exposure |  | 4,167,181 | 4,080,830
Mortgages |  |  |
Disclosure of guarantee values [line items] |  |  |
Maximum exposure to credit risk |  | 9,206,727 | 8,052,073
Fair value of loans covered by collateral |  |  |
Mortgages |  | 8,019,519 | 7,493,073
Pledge | [1] | 51 | 58
Securities |  | 176 | 265
Warrants |  |  |
Others |  |  |
Net collateral |  | 8,019,746 | 7,493,396
Net exposure |  | $ 1,186,981 | $ 558,677
[1] | Includes agricultural and industrial pledges and pledges without conveyance.

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- Definition Amount represents total net collateral assets. + References No definition available. + Details
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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. + Details
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- References No definition available. + Details
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- Definition Amount represents mortgage assets held as collateral. + References No definition available. + Details
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- Definition The amount represents the net exposure to credit risk after taking into account any collateral held or other credit enhancements. + References No definition available. + Details
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- Definition Amount represents pledges held as collateral. + References No definition available. + Details
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- Definition Amount represents warrants held as collateral. + References No definition available. + Details
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- Definition The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 35K -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_35K_a&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 36 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_36_a&doctype=Standard&book=b -URIDate 2019-03-27 + Details
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