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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Summary of Significant Accounting Policies [abstract]

Schedule of entities in which bank directly or indirectly owns a controlling interest

						Functional		Interest Owned
RUT		Subsidiaries		Country		Currency		Direct								Indirect								Total
								2018				2019				2018				2019				2018				2019
								%				%				%				%				%				%
96,767,630-6		Banchile Administradora General de Fondos S.A.		Chile		Ch$			99.98				99.98				0.02				0.02				100.00				100.00
96,543,250-7		Banchile Asesoría Financiera S.A.		Chile		Ch$			99.96				99.96				—				—				99.96				99.96
77,191,070-K		Banchile Corredores de Seguros Ltda.		Chile		Ch$			99.83				99.83				0.17				0.17				100.00				100.00
96,571,220-8		Banchile Corredores de Bolsa S.A.		Chile		Ch$			99.70				99.70				0.30				0.30				100.00				100.00
96,932,010-K		Banchile Securitizadora S.A.		Chile		Ch$			99.01				99.01				0.99				0.99				100.00				100.00
96,645,790-2		Socofin S.A.		Chile		Ch$			99.00				99.00				1.00				1.00				100.00				100.00

Schedule of maximum period for write-offs of loans

Type of Loan		Term
Consumer loans – secured and unsecured		6 months
Other transactions – unsecured		24 months
Commercial loans – secured		36 months
Residential mortgage loans		48 months
Consumer leases		6 months
Other non-real estate lease transactions		12 months
Real estate leases (commercial or residential)		36 months

Schedule of estimated useful lives

Buildings		50 years
Installations (in general)		10 years
Equipment		5 years
Office furniture		5 years