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Fair Value of Financial Assets and Liabilities: (Details) - Schedule of figures by hierarchy, for financial assets/liabilities not measured at fair value on the balance sheet - CLP ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Current accounts and other demand deposits |  |
Assets |  |
Financial Liabilities | $ 15,167,229 | $ 11,326,133
Transactions in the course of payment |  |
Assets |  |
Financial Liabilities | 882,944 | 98,869
Obligations under repurchase agreements |  |
Assets |  |
Financial Liabilities | 288,917 | 308,734
Savings accounts and time deposits |  |
Assets |  |
Financial Liabilities | 8,885,015 | 10,795,125
Borrowings from financial institutions |  |
Assets |  |
Financial Liabilities | 3,415,959 | 1,555,129
Other financial obligations |  |
Assets |  |
Financial Liabilities | 217,311 | 160,361
Letters of credit for residential purposes |  |
Assets |  |
Financial Liabilities | 7,201 | 11,081
Letters of credit for general purposes |  |
Assets |  |
Financial Liabilities | 280 | 725
Bonds |  |
Assets |  |
Financial Liabilities | 8,390,594 | 8,340,272
Subordinate bonds |  |
Assets |  |
Financial Liabilities | 1,004,196 | 1,004,621
Debt issued |  |
Assets |  |
Financial Liabilities | 9,402,271 | 9,356,699
Financial Liabilities |  |
Assets |  |
Financial Liabilities | 38,259,646 | 33,601,050
Cash and due from banks |  |
Assets |  |
Financial Liabilities | 2,560,216 | 2,392,166
Transactions in the course of collection |  |
Assets |  |
Financial Liabilities | 163,252 | 331,420
Investments under resale agreements |  |
Assets |  |
Financial Liabilities | 76,407 | 142,329
Cash and other transactions |  |
Assets |  |
Financial Liabilities | 2,799,875 | 2,865,915
Domestic banks |  |
Assets |  |
Financial Liabilities | 259,788 | 149,974
Central Bank of Chile |  |
Assets |  |
Financial Liabilities | 2,380,033 | 630,053
Foreign banks |  |
Assets |  |
Financial Liabilities | 297,778 | 358,542
Loans and advances to banks |  |
Assets |  |
Financial Liabilities | 2,937,599 | 1,138,569
Commercial loans |  |
Assets |  |
Financial Liabilities | 16,968,143 | 15,988,330
Residential mortgage loans |  |
Assets |  |
Financial Liabilities | 10,075,011 | 9,888,506
Consumer loans |  |
Assets |  |
Financial Liabilities | 3,711,582 | 4,215,509
Loans to Customers at amortized cost |  |
Assets |  |
Financial Liabilities | 30,754,736 | 30,092,345
Level 1 |  |
Assets |  |
Financial Liabilities | 36,492,210 | 34,096,829
Level 1 | Not measured at fair value |  |
Assets |  |
Financial Liabilities | 16,339,090 | 11,733,736
Level 1 | Not measured at fair value | Current accounts and other demand deposits |  |
Assets |  |
Financial Liabilities | 15,167,229 | 11,326,133
Level 1 | Not measured at fair value | Transactions in the course of payment |  |
Assets |  |
Financial Liabilities | 882,944 | 98,869
Level 1 | Not measured at fair value | Obligations under repurchase agreements |  |
Assets |  |
Financial Liabilities | 288,917 | 308,734
Level 1 | Not measured at fair value | Financial Liabilities |  |
Assets |  |
Financial Liabilities | 16,339,090 | 11,733,736
Level 1 | Not measured at fair value | Cash and due from banks |  |
Assets |  |
Financial Liabilities | 2,560,216 | 2,392,166
Level 1 | Not measured at fair value | Transactions in the course of collection |  |
Assets |  |
Financial Liabilities | 163,252 | 331,420
Level 1 | Not measured at fair value | Investments under resale agreements |  |
Assets |  |
Financial Liabilities | 76,407 | 142,329
Level 1 | Not measured at fair value | Cash and other transactions |  |
Assets |  |
Financial Liabilities | 2,799,875 | 2,865,915
Level 1 | Not measured at fair value | Domestic banks |  |
Assets |  |
Financial Liabilities | 259,788 | 149,974
Level 1 | Not measured at fair value | Central Bank of Chile |  |
Assets |  |
Financial Liabilities | 2,380,033 | 630,053
Level 1 | Not measured at fair value | Loans and advances to banks |  |
Assets |  |
Financial Liabilities | 2,639,821 | 780,027
Level 1 | Not measured at fair value | Level 1 |  |
Assets |  |
Financial Liabilities | 5,439,696 | 3,645,942
Level 3 | Not measured at fair value |  |
Assets |  |
Financial Liabilities | 12,518,285 | 12,510,615
Level 3 | Not measured at fair value | Savings accounts and time deposits |  |
Assets |  |
Financial Liabilities | 8,885,015 | 10,795,125
Level 3 | Not measured at fair value | Borrowings from financial institutions |  |
Assets |  |
Financial Liabilities | 3,415,959 | 1,555,129
Level 3 | Not measured at fair value | Other financial obligations |  |
Assets |  |
Financial Liabilities | 217,311 | 160,361
Level 3 | Not measured at fair value | Subordinate bonds |  |
Assets |  |
Financial Liabilities | 1,004,196 | 1,004,621
Level 3 | Not measured at fair value | Debt issued |  |
Assets |  |
Financial Liabilities | 1,004,196 | 1,004,621
Level 3 | Not measured at fair value | Financial Liabilities |  |
Assets |  |
Financial Liabilities | 13,522,481 | 13,515,236
Level 3 | Not measured at fair value | Foreign banks |  |
Assets |  |
Financial Liabilities | 297,778 | 358,542
Level 3 | Not measured at fair value | Loans and advances to banks |  |
Assets |  |
Financial Liabilities | 297,778 | 358,542
Level 3 | Not measured at fair value | Commercial loans |  |
Assets |  |
Financial Liabilities | 16,968,143 | 15,988,330
Level 3 | Not measured at fair value | Residential mortgage loans |  |
Assets |  |
Financial Liabilities | 10,075,011 | 9,888,506
Level 3 | Not measured at fair value | Consumer loans |  |
Assets |  |
Financial Liabilities | 3,711,582 | 4,215,509
Level 3 | Not measured at fair value | Loans to Customers at amortized cost |  |
Assets |  |
Financial Liabilities | 30,754,736 | 30,092,345
Level 3 | Not measured at fair value | Level 1 |  |
Assets |  |
Financial Liabilities | 31,052,514 | 30,450,887
Borrowings and Deposits |  |
Assets |  |
Financial Liabilities | 28,857,375 | 24,244,351
Level 2 | Not measured at fair value | Letters of credit for residential purposes |  |
Assets |  |
Financial Liabilities | 7,201 | 11,081
Level 2 | Not measured at fair value | Letters of credit for general purposes |  |
Assets |  |
Financial Liabilities | 280 | 725
Level 2 | Not measured at fair value | Bonds |  |
Assets |  |
Financial Liabilities | 8,390,594 | 8,340,272
Level 2 | Not measured at fair value | Debt issued |  |
Assets |  |
Financial Liabilities | 8,398,075 | 8,352,078
Level 2 | Not measured at fair value | Financial Liabilities |  |
Assets |  |
Financial Liabilities | $ 8,398,075 | $ 8,352,078

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