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Other Provisions (Details 2 ) - CLP ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Statement [Line Items]    
Other provisions $ 3,572,891 $ 7,830,828
Not later than one year [member]    
Statement [Line Items]    
Other provisions 3,040,930 405,069
Later than one year and not later than five years [member]    
Statement [Line Items]    
Other provisions 402,776 7,251,981
Over 5 years    
Statement [Line Items]    
Other provisions 129,185 173,778
Legal proceedings provision [member]    
Statement [Line Items]    
Other provisions 561,378 893,631
Legal proceedings provision [member] | Not later than one year [member]    
Statement [Line Items]    
Other provisions 193,764 405,069
Legal proceedings provision [member] | Later than one year and not later than five years [member]    
Statement [Line Items]    
Other provisions 238,429 314,784
Legal proceedings provision [member] | Over 5 years    
Statement [Line Items]    
Other provisions 129,185 173,778
Miscellaneous other provisions [member]    
Statement [Line Items]    
Other provisions 3,011,513 6,937,197
Miscellaneous other provisions [member] | Not later than one year [member]    
Statement [Line Items]    
Other provisions 2,847,166 0
Miscellaneous other provisions [member] | Later than one year and not later than five years [member]    
Statement [Line Items]    
Other provisions 164,347 6,937,197
Miscellaneous other provisions [member] | Over 5 years    
Statement [Line Items]    
Other provisions $ 0 $ 0