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Foreign Exchange Transactions, Net (Details) - Schedule of foreign exchange transactions, net - CLP ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of foreign exchange transactions, net [Abstract]
Gain (loss) from accounting hedges	$ (17,156)	$ 113,374	$ 118,690
Indexed foreign currency	176,469	(88,772)	(125,598)
Exchange difference, net	(2,651)	6,284	9,609
Total	$ 156,662	$ 30,886	$ 2,701

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- Definition

The amount of gain (loss) on indexed foreign currency.

+ References

No definition available.

+ Details

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- Definition

The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Financial instruments, class [member]]

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Translation differences, net.

+ References

No definition available.

+ Details

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Namespace Prefix:	bch_
Data Type:	xbrli:monetaryItemType
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- Definition

The gain (loss) on hedge ineffectiveness. Hedge ineffectiveness is the extent to which the changes in the fair value or the cash flows of the hedging instrument are greater or less than those on the hedged item.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 24C
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_24C_a_i&doctype=Standard
-URIDate 2020-01-01

+ Details

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