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Environment (Details Textual)	12 Months Ended
	Dec. 31, 2018
Industrial waste water treatment [Member]
Disclosure of Environment [Line Items]
Percentage of distribution of environmental costs	51.64%
Solid industrial residues [Member]
Disclosure of Environment [Line Items]
Percentage of distribution of environmental costs	33.31%
Gas emission expenses [Member]
Disclosure of Environment [Line Items]
Percentage of distribution of environmental costs	1.05%
Other environmental expenses [Member]
Disclosure of Environment [Line Items]
Percentage of distribution of environmental costs	14.00%

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- References

No definition available.

+ Details

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Namespace Prefix:	ccu_
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- Definition

The percentage of distribution of environmental activities among various activities.

+ References

No definition available.

+ Details

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Namespace Prefix:	ccu_
Data Type:	num:percentItemType
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- Details

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Namespace Prefix:
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X

- Details

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Period Type:

X

- Details

Name:	ccu_EnvironmentalCostByNameAxis=ccu_GasEmissionExpensesMember
Namespace Prefix:
Data Type:	na
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Period Type:

X

- Details

Name:	ccu_EnvironmentalCostByNameAxis=ccu_OtherEnvironmentalExpensesMember
Namespace Prefix:
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Period Type: