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Risk Management and Report (Details) - Schedule of guarantees values - CLP ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Corporate lending [Member] |  |
Risk Management and Report (Details) - Schedule of guarantees values [Line Items] |  |
Maximum exposure to credit risk | $ 15,474,528 | $ 14,633,419
Mortgages | 3,993,984 | 3,392,760
Pledge | 193,235 | 149,892
Securities | 590,126 | 508,711
Warrants | 4,386 | 4,451
Net collateral | 4,781,731 | 4,055,814
Net exposure | 10,692,797 | 10,577,605
Small business lending [Member] |  |
Risk Management and Report (Details) - Schedule of guarantees values [Line Items] |  |
Maximum exposure to credit risk | 4,834,217 | 5,038,913
Mortgages | 3,352,055 | 3,124,172
Pledge | 20,294 | 26,310
Securities | 11,700 | 12,898
Warrants |  |
Net collateral | 3,384,049 | 3,163,380
Net exposure | 1,450,168 | 1,875,533
Consumer lending [Member] |  |
Risk Management and Report (Details) - Schedule of guarantees values [Line Items] |  |
Maximum exposure to credit risk | 4,995,230 | 4,247,013
Mortgages | 364,469 | 317,215
Pledge | 912 | 622
Securities | 3,364 | 2,498
Warrants |  |
Net collateral | 368,745 | 320,335
Net exposure | 4,626,485 | 3,926,678
Mortgages lending [Member] |  |
Risk Management and Report (Details) - Schedule of guarantees values [Line Items] |  |
Maximum exposure to credit risk | 11,422,322 | 10,346,528
Mortgages | 9,928,827 | 8,730,747
Pledge | 133 | 96
Securities | 607 | 196
Warrants |  |
Net collateral | 9,929,567 | 8,731,039
Net exposure | 1,492,755 | 1,615,489
Loans to customers [Member] |  |
Risk Management and Report (Details) - Schedule of guarantees values [Line Items] |  |
Maximum exposure to credit risk | 36,726,297 | 34,265,873
Mortgages | 17,639,335 | 15,564,894
Pledge | 214,574 | 176,920
Securities | 605,797 | 524,303
Warrants | 4,386 | 4,451
Net collateral | 18,464,092 | 16,270,568
Net exposure | $ 18,262,205 | $ 17,995,305

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- Definition Amount represents total net collateral assets. + References No definition available. + Details
Name: | bch_CollateralAssets
Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount represents mortgage assets held as collateral. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount represents pledges held as collateral. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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- Definition Amount represents securities held as collateral. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount represents warrants held as collateral. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Period Type: |

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- Details
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- Details
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