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Employee Benefits (Details 4) - CLP ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disclosure of Employee benefits [Abstract] |  |  |
Current cost of service | $ 1,942,099 | $ 1,650,484 | $ 1,023,969
Past service cost | 604,337 | 342,039 | 131,204
Accrued paid benefit | 6,023,869 | 7,851,201 | 4,377,570
Other | 269,377 | 1,114,112 | 646,502
Total expense recognized in Consolidated Statement of Income | $ 8,839,682 | $ 10,957,836 | $ 6,179,245

X
- Definition The amount of accrued expense relating to termination benefit obligation. + References No definition available. + Details
Name: | ccu_AccrualExpenseOnBenefitPlan
Namespace Prefix: | ccu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of current service cost relating to termination benefits obligation. + References No definition available. + Details
Name: | ccu_CurrentServiceCost
Namespace Prefix: | ccu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | ccu_DisclosureOfEmployeeBenefitsAbstract
Namespace Prefix: | ccu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of other expense recognized relating to termination benefit obligation. + References No definition available. + Details
Name: | ccu_OtherExpenseOnBenefitPlan
Namespace Prefix: | ccu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of past service cost relating to termination benefits obligation. + References No definition available. + Details
Name: | ccu_PastServiceCost
Namespace Prefix: | ccu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense in relation to termination benefits. Termination benefits are employee benefits provided in exchange for the termination of an employee's employment as a result of either: (a) an entity's decision to terminate an employee's employment before the normal retirement date; or (b) an employee's decision to accept an offer of benefits in exchange for the termination of employment. [Refer: Employee benefits expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2017-01-01 -Paragraph 171 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_171&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_TerminationBenefitsExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration