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Risk Management - Renegotiated Assets (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 CLP ($) segment	Dec. 31, 2016 CLP ($)
Renegotiated Assets
Total renegotiated financial assets	$ 576,064	$ 547,744
Number of segments for allowances loan losses | segment	2
Percentage of renegotiated portfolio of Banco de Chile on total loans	2.26%
Redefault rate of renegotiated portfolio for retail segment (as a percent)	33.19%
Percentage of extended renegotiated loans for maturity	80.00%
Average term of commercial credit renegotiated loans (in months)	38 months
Maximum percentage of provisions on renegotiated loans	65.00%
Period of default prior to renegotiation (in months)	6 months
Maximum overdue period for provision of decrease in renegotiated payment behaviour	30 days
Period for renegotiated payment behaviour	7 months
Period used to test for impairment of loans	90 days
Loans to customers
Renegotiated Assets
Total renegotiated financial assets	$ 576,064	547,744
Commercial loans
Renegotiated Assets
Total renegotiated financial assets	191,314	172,255
Residential mortgage loans
Renegotiated Assets
Total renegotiated financial assets	17,400	17,466
Consumer loans
Renegotiated Assets
Total renegotiated financial assets	$ 367,350	$ 358,023

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- Definition

Average term of the commercial credit renegotiated loans, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Maximum overdue period for provision of decrease in renegotiated payment behaviour, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The maximum percentage of provisions on renegotiated loans.

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No definition available.

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- Definition

Represents the number of segments for allowances loan losses.

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- Definition

The percentage of extended renegotiated loans for maturity.

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- Definition

The percentage of redefault rate of renegotiated portfolio for retail segment.

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No definition available.

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- Definition

The percentage of renegotiated portfolio of bank on the total loans.

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- Definition

Period for renegotiated payment behaviour, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The period of default prior to renegotiation, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The period of time with overdue payments which is used to determine testing for impairment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The gross carrying amount of financial assets that have been modified since initial recognition at a time when the loss allowance was measured at an amount equal to lifetime expected credit losses and for which the loss allowance has changed during the reporting period to an amount equal to 12-month expected credit losses. [Refer: Financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2018-01-01
-Name IFRS
-Number 7
-IssueDate 2017-01-01
-Paragraph 35J
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_35J_b&doctype=Standard
-URIDate 2017-03-09

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