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Subsequent Events (Details)	12 Months Ended
	Dec. 31, 2019 CLP ($) $ / shares shares
Disclosure of non-adjusting events after reporting period [abstract]
Inflation of paid capital and reserves | $	$ 92,239,840,420
Percentage of dividend distribution of remaining liquid profit	70.00%
Dividend distribution per share | $ / shares	$ 3.47008338564
Ordinary shares of dividend | shares	101,017,081,114
Percentage of retained liquid profit after dividend	30.00%
Dividend distribution profit percentage	59.10%

X

- Definition

Represent the dividend distribution profit percentage.

+ References

No definition available.

+ Details

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X

- Definition

Represent the amount of inflation of paid capital and reserves.

+ References

No definition available.

+ Details

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Balance Type:	credit
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X

- Definition

Percentage of dividend distribution of remaining liquid profit.

+ References

No definition available.

+ Details

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X

- Definition

Percentage of remaining liquid profit of dividend.

+ References

No definition available.

+ Details

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Namespace Prefix:	bch_
Data Type:	num:percentItemType
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X

- References

No definition available.

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X

- Definition

The amount, per share, of dividends recognised as distributions to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 107
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_107&doctype=Standard
-URIDate 2019-03-27

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X

- Definition

The increase (decrease) in the number of ordinary shares issued. [Refer: Ordinary shares [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2019-03-27

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