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Contingencies and Commitments - Guarantees Granted - Banchile Administradora General de Fondos S.A (Details) - Banchile Administradora General de Fondos S.A - CLF ( ) | Dec. 31, 2017 | Dec. 31, 2016
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Contingencies and Commitments |  |
Policy for guaranteed amount for Real State Funds | 382,900 |
Mutual fund guarantees | 0 | 0
Bank guarantee maturing on January 10, 2017 |  |
Contingencies and Commitments |  |
Bank guarantees issued |  | 2,642,000
Bank guarantee maturing on January 10, 2018 |  |
Contingencies and Commitments |  |
Bank guarantees issued | 2,588,500 |
Bank guarantee for benefit of investors in portfolio management | 372,200 |

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- Definition Guarantees by management portfolio to comply with Superintendency of Securities and Insurance rules. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Guarantee amount issued by the bank. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Guarantee amount issued by the bank related to mutual funds. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of policy for guaranteed amount for Real State Funds. + References No definition available. + Details
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Namespace Prefix: | bch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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- Details
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- Details
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