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Other Provisions (Details 1) - CLP ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Statement [Line Items]    
Incorporated $ 3,665,562 $ 7,291,382
Used (461,968) (344,749)
Released (7,192,669) (114,252)
Conversion effect (268,862) (591,717)
Changes (4,257,937) 6,240,664
Other provisions 3,572,891 7,830,828
Litigation [member]    
Statement [Line Items]    
Incorporated 493,097 560,355
Used (461,968) (344,749)
Released (129,623) (102,277)
Conversion effect (233,759) (520,393)
Changes (332,253) (407,064)
Other provisions 561,378 893,631
Others [member]    
Statement [Line Items]    
Incorporated 3,172,465 6,731,027
Used 0 0
Released (7,063,046) (11,975)
Conversion effect (35,103) (71,324)
Changes (3,925,684) 6,647,728
Other provisions $ 3,011,513 $ 6,937,197