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Loans to Customers at Amortized Cost (Details) - CLP ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | $ 29,384,039 | $ 27,341,254
Commercial loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 11,947,190 | 11,321,469
Foreign trade loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 1,419,488 | 1,300,079
Current account debtors |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 256,319 | 213,102
Factoring transactions |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 683,320 | 696,988
Student loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 53,777 | 50,478
Commercial lease transactions |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers | [1] | 1,601,026 | 1,556,221
Other loans and accounts receivable |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 78,291 | 71,197
Commercial loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 16,039,411 | 15,209,534
Mortgage bonds |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 14,634 | 21,222
Transferable mortgage loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 32,229 | 42,087
Other residential real estate mortgage loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 9,105,448 | 7,944,217
Credits from ANAP |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 4 | 6
Other loans and accounts receivable |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 10,704 | 10,211
Mortgages |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 9,163,019 | 8,017,743
Consumer loans in installments |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 2,758,123 | 2,693,951
Current account debtors |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 281,924 | 299,915
Credit card debtors |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 1,141,310 | 1,119,810
Consumer lease transactions |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers | [1] | 69 | 9
Other loans and accounts receivable |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 183 | 292
Consumer loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 4,181,609 | 4,113,977
Gross Balance |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 30,033,272 | 27,926,632
Gross Balance | Commercial loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 12,144,720 | 11,496,591
Gross Balance | Foreign trade loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 1,431,794 | 1,313,001
Gross Balance | Current account debtors |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 265,762 | 222,218
Gross Balance | Factoring transactions |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 688,198 | 701,005
Gross Balance | Student loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 56,219 | 51,919
Gross Balance | Commercial lease transactions |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers | [1] | 1,619,772 | 1,571,999
Gross Balance | Other loans and accounts receivable |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 87,747 | 81,665
Gross Balance | Commercial loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 16,294,212 | 15,438,398
Gross Balance | Mortgage bonds |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 14,808 | 21,443
Gross Balance | Transferable mortgage loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 32,386 | 42,313
Gross Balance | Other residential real estate mortgage loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 9,148,811 | 7,978,092
Gross Balance | Credits from ANAP |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 4 | 6
Gross Balance | Other loans and accounts receivable |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 10,718 | 10,219
Gross Balance | Mortgages |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 9,206,727 | 8,052,073
Gross Balance | Consumer loans in installments |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 3,039,560 | 2,957,493
Gross Balance | Current account debtors |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 296,374 | 312,783
Gross Balance | Credit card debtors |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 1,195,614 | 1,165,064
Gross Balance | Consumer lease transactions |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers | [1] | 69 | 9
Gross Balance | Other loans and accounts receivable |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 716 | 812
Gross Balance | Consumer loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | 4,532,333 | 4,436,161
Accumulated Impairment |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (649,233) | (585,378)
Accumulated Impairment | Commercial loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (197,530) | (175,122)
Accumulated Impairment | Foreign trade loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (12,306) | (12,922)
Accumulated Impairment | Current account debtors |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (9,443) | (9,116)
Accumulated Impairment | Factoring transactions |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (4,878) | (4,017)
Accumulated Impairment | Student loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (2,442) | (1,441)
Accumulated Impairment | Commercial lease transactions |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers | [1] | (18,746) | (15,778)
Accumulated Impairment | Other loans and accounts receivable |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (9,456) | (10,468)
Accumulated Impairment | Commercial loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (254,801) | 228,864
Accumulated Impairment | Mortgage bonds |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (174) | (221)
Accumulated Impairment | Transferable mortgage loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (157) | (226)
Accumulated Impairment | Other residential real estate mortgage loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (43,363) | (33,875)
Accumulated Impairment | Credits from ANAP |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  |  |
Accumulated Impairment | Other loans and accounts receivable |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (14) | (8)
Accumulated Impairment | Mortgages |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (43,708) | (34,330)
Accumulated Impairment | Consumer loans in installments |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (281,437) | (263,542)
Accumulated Impairment | Current account debtors |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (14,450) | (12,868)
Accumulated Impairment | Credit card debtors |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (54,304) | (45,254)
Accumulated Impairment | Consumer lease transactions |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers | [1] |  |
Accumulated Impairment | Other loans and accounts receivable |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | (533) | (520)
Accumulated Impairment | Consumer loans |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Loans to customers |  | $ (350,724) | $ 322,184
[1] | In this item, the Bank finances its customers' purchases of assets, including real estate and other personal property, through financial lease agreements. As of December 31, 2019, Ch$779,682 million corresponds to financial leases for real estate (Ch$758,970 million in December 2018) and Ch$840,159 million corresponds to financial leases for other assets (Ch$813,038 million in December 2018).

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