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v3.21.1

Risk Management (Details) - Schedule of financial ratios | 12 Months Ended
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Dec. 31, 2020
Maximum [Member] |
Risk Management (Details) - Schedule of financial ratios [Line Items] |
Liquid Assets/Net Funding 30 day | 165.00%
Liabilities greater than 1y/Assets greater than 1y | 100.00%
Deposits/Loans | 67.00%
Minimum [Member] |
Risk Management (Details) - Schedule of financial ratios [Line Items] |
Liquid Assets/Net Funding 30 day | 101.00%
Liabilities greater than 1y/Assets greater than 1y | 84.00%
Deposits/Loans | 61.00%
Average [Member] |
Risk Management (Details) - Schedule of financial ratios [Line Items] |
Liquid Assets/Net Funding 30 day | 135.00%
Liabilities greater than 1y/Assets greater than 1y | 94.00%
Deposits/Loans | 64.00%

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- Definition The ratio of deposits to loans under liquidity management risk. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The ratio of liquid assets to net funding under liquidity management risk. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The ratio of non current liabilities to non current assets under liquidity management risk. + References No definition available. + Details
Name: | bch_NonCurrentLiabilitiesToNonCurrentAssetsLiquidityManagementRisk
Namespace Prefix: | bch_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | bch_
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Period Type: | duration

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- Details
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- Details
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Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_RangeAxis=ifrs-full_WeightedAverageMember
Namespace Prefix: |
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Balance Type: |
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