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Investments in Other Companies - Unconsolidated structured entities (Details) - CLP ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Reconciliation of investments in unconsolidated companies      
Balance at beginning of the period $ 42,252 $ 35,771 $ 30,314
Capital increase 671
Participation in net income 6,039 6,811 5,511
Dividends received (552) (411) (484)
Other 32 81 430
Balance at end of the period 48,442 42,252 35,771
Impairment recognized $ 0 $ 0 $ 0