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LOANS AND ACCOUNTS RECEIVABLE FROM CUSTOMERS and INTERBANK LOANS (under IAS 39) (Details 1)
$ in Millions
Dec. 31, 2017
CLP ($)
Foreign Interbank Loans [Member]  
Disclosure of financial assets [line items]  
Interbank loans $ 162,685
Provisions and impairment for foreign bank loans (472)
Total 162,213
Domestic Banks [Member]  
Disclosure of financial assets [line items]  
Interbank loans
Other domestic bank loans