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Financial Assets at Fair Value through Other Comprehensive Income (Details) - Schedule of unrealised gain and loss on available for sale investments - Financial assets available-for-sale [Member] - CLP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Financial Assets at Fair Value through Other Comprehensive Income (Details) - Schedule of unrealised gain and loss on available for sale investments [Line Items]      
Net gain (loss) on financial assets before income tax [1] $ (8,540) $ 15,969 $ (13,878)
Tax (expense) benefit 2,304 (4,328) 3,757
Net of tax amount [2] $ (6,236) $ 11,641 $ (10,121)
[1] As of December 31, 2018, 2019 and 2020, realized gains reclassified to the income statement line item “Net financial operating income” amounted to Ch$400 million, Ch$4,716 million and Ch$22,735 million, respectively.
[2] This amount corresponds to the unrealized gain or loss, net of deferred tax and which are included in “Consolidated Statement of Changes in Equity”.