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Investments accounted for using equity method (Details) - CLP ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure Of Investments Accounted For Using Equity Method [Line Items]      
Investments accounted for using equity method $ 136,098,062 $ 142,017,781 $ 99,270,280
Associates [member]      
Disclosure Of Investments Accounted For Using Equity Method [Line Items]      
Investments accounted for using equity method 1,168,438 1,229,540  
Associates [member] | Other companies [Member]      
Disclosure Of Investments Accounted For Using Equity Method [Line Items]      
Investments accounted for using equity method 1,168,438 1,229,540  
Joint ventures [member]      
Disclosure Of Investments Accounted For Using Equity Method [Line Items]      
Investments accounted for using equity method $ 134,929,624 140,788,241  
Joint ventures [member] | Cerveceria Austral S.A. [Member]      
Disclosure Of Investments Accounted For Using Equity Method [Line Items]      
Proportion of ownership interest in joint venture 50.00%    
Investments accounted for using equity method $ 8,607,390 7,327,949  
Joint ventures [member] | Foods Compania de Alimentos CCU S.A. [Member]      
Disclosure Of Investments Accounted For Using Equity Method [Line Items]      
Proportion of ownership interest in joint venture 50.00%    
Investments accounted for using equity method [1] $ 1,709,803 12,012,276  
Joint ventures [member] | Central Cervecera de Colombia S.A.S. [Member]      
Disclosure Of Investments Accounted For Using Equity Method [Line Items]      
Proportion of ownership interest in joint venture 50.00%    
Investments accounted for using equity method $ 25,334,386 40,681,482  
Joint ventures [member] | Zona Franca Central Cervecera S.A.S. [Member]      
Disclosure Of Investments Accounted For Using Equity Method [Line Items]      
Proportion of ownership interest in joint venture 50.00%    
Investments accounted for using equity method $ 99,278,045 $ 80,766,534  
[1] See Note 16 – Investments accounted for using equity method, number (2).