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MATURITY OF FINANCIAL ASSETS AND LIABILITIES (Details) - CLP ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | $ 39,132,512 | $ 35,823,605
Total financial liabilities |  | 35,887,052 | 32,675,685
Deposits and Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 8,741,417 | 7,768,166
Cash items in process of being cleared [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 163,043 | 486,726
Obligations under repurchase agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 48,545 | 268,061
Time deposits and other time liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 13,067,819 | 11,913,945
Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 2,517,728 | 2,139,488
Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 1,788,626 | 1,698,357
Issue debt instruments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 8,115,233 | 7,093,653
Other financial liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 215,400 | 242,030
Guarantees received (margin accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 540,091 | 408,313
Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,827,612 | 3,214,657
Total financial liabilities |  | 9,786,584 | 8,966,477
Demand [Member] | Deposits and Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 8,741,417 | 7,768,166
Demand [Member] | Cash items in process of being cleared [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 163,043 | 486,726
Demand [Member] | Obligations under repurchase agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Demand [Member] | Time deposits and other time liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 122,974 | 121,479
Demand [Member] | Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Demand [Member] | Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 39,378 | 4,130
Demand [Member] | Issue debt instruments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Demand [Member] | Other financial liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 179,681 | 177,663
Demand [Member] | Guarantees received (margin accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 540,091 | 408,313
Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 5,798,664 | 2,480,411
Total financial liabilities |  | 5,517,050 | 5,600,399
Not Later Than One Month [Member] | Deposits and Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Not Later Than One Month [Member] | Cash items in process of being cleared [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Not Later Than One Month [Member] | Obligations under repurchase agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 48,545 | 268,061
Not Later Than One Month [Member] | Time deposits and other time liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 5,248,418 | 5,120,171
Not Later Than One Month [Member] | Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 131,378 | 144,410
Not Later Than One Month [Member] | Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 16,310 | 46,013
Not Later Than One Month [Member] | Issue debt instruments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 71,465 | 21,043
Not Later Than One Month [Member] | Other financial liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 934 | 701
Not Later Than One Month [Member] | Guarantees received (margin accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,451,466 | 2,655,971
Total financial liabilities |  | 4,675,171 | 4,852,836
Later Than One Month And Not Later Than Three Months [Member] | Deposits and Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Later Than One Month And Not Later Than Three Months [Member] | Cash items in process of being cleared [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Later Than One Month And Not Later Than Three Months [Member] | Obligations under repurchase agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Later Than One Month And Not Later Than Three Months [Member] | Time deposits and other time liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 4,108,556 | 4,201,271
Later Than One Month And Not Later Than Three Months [Member] | Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 120,361 | 196,444
Later Than One Month And Not Later Than Three Months [Member] | Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 404,575 | 397,419
Later Than One Month And Not Later Than Three Months [Member] | Issue debt instruments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 39,267 | 55,119
Later Than One Month And Not Later Than Three Months [Member] | Other financial liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 2,412 | 2,583
Later Than One Month And Not Later Than Three Months [Member] | Guarantees received (margin accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 5,461,385 | 4,933,977
Total financial liabilities |  | 5,633,116 | 3,991,665
More Than 3 Months To 1 Year [Member] | Deposits and Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
More Than 3 Months To 1 Year [Member] | Cash items in process of being cleared [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
More Than 3 Months To 1 Year [Member] | Obligations under repurchase agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
More Than 3 Months To 1 Year [Member] | Time deposits and other time liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 3,326,199 | 2,299,018
More Than 3 Months To 1 Year [Member] | Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 349,551 | 356,288
More Than 3 Months To 1 Year [Member] | Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 1,188,692 | 1,030,241
More Than 3 Months To 1 Year [Member] | Issue debt instruments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 745,830 | 274,239
More Than 3 Months To 1 Year [Member] | Other financial liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 22,844 | 31,879
More Than 3 Months To 1 Year [Member] | Guarantees received (margin accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 16,539,127 | 13,285,016
Total financial liabilities |  | 25,611,921 | 23,411,377
Due Within 1 Year [Member] | Deposits and Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 8,741,417 | 7,768,166
Due Within 1 Year [Member] | Cash items in process of being cleared [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 163,043 | 486,726
Due Within 1 Year [Member] | Obligations under repurchase agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 48,545 | 268,061
Due Within 1 Year [Member] | Time deposits and other time liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 12,806,147 | 11,741,939
Due Within 1 Year [Member] | Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 601,290 | 697,142
Due Within 1 Year [Member] | Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 1,648,955 | 1,477,803
Due Within 1 Year [Member] | Issue debt instruments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 205,871 | 350,401
Due Within 1 Year [Member] | Other financial liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 856,562 | 212,826
Due Within 1 Year [Member] | Guarantees received (margin accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 540,091 | 408,313
Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 6,219,277 | 6,240,042
Total financial liabilities |  | 3,268,117 | 2,461,121
Between 1 and 3 years [Member] | Deposits and Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Between 1 and 3 years [Member] | Cash items in process of being cleared [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Between 1 and 3 years [Member] | Obligations under repurchase agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Between 1 and 3 years [Member] | Time deposits and other time liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 191,547 | 106,833
Between 1 and 3 years [Member] | Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 495,789 | 378,582
Between 1 and 3 years [Member] | Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 139,671 | 220,554
Between 1 and 3 years [Member] | Issue debt instruments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 2,431,849 | 1,727,571
Between 1 and 3 years [Member] | Other financial liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 9,261 | 27,581
Between 1 and 3 years [Member] | Guarantees received (margin accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 3,808,562 | 4,375,295
Total financial liabilities |  | 2,027,157 | 2,466,344
Later than three years and not later than five years [Member] | Deposits and Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Later than three years and not later than five years [Member] | Cash items in process of being cleared [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Later than three years and not later than five years [Member] | Obligations under repurchase agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Later than three years and not later than five years [Member] | Time deposits and other time liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 6,137 | 2,811
Later than three years and not later than five years [Member] | Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 471,185 | 358,358
Later than three years and not later than five years [Member] | Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Later than three years and not later than five years [Member] | Issue debt instruments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 1,549,743 | 2,104,771
Later than three years and not later than five years [Member] | Other financial liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 92 | 404
Later than three years and not later than five years [Member] | Guarantees received (margin accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 11,877,024 | 11,569,324
Total financial liabilities |  | 4,290,707 | 4,610,589
Due After 5 Years [Member] | Deposits and Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Due After 5 Years [Member] | Cash items in process of being cleared [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Due After 5 Years [Member] | Obligations under repurchase agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Due After 5 Years [Member] | Time deposits and other time liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 63,988 | 62,362
Due After 5 Years [Member] | Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 949,464 | 705,406
Due After 5 Years [Member] | Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Due After 5 Years [Member] | Issue debt instruments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 3,277,079 | 2,910,910
Due After 5 Years [Member] | Other financial liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 176 | 1,219
Due After 5 Years [Member] | Guarantees received (margin accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 21,904,863 | 22,184,661
Total financial liabilities |  | 9,585,981 | 8,607,362
More Than 1 Year [Member] | Deposits and Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
More Than 1 Year [Member] | Cash items in process of being cleared [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
More Than 1 Year [Member] | Obligations under repurchase agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
More Than 1 Year [Member] | Time deposits and other time liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 261,672 | 172,006
More Than 1 Year [Member] | Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 1,916,438 | 1,442,346
More Than 1 Year [Member] | Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 139,671 | 220,554
More Than 1 Year [Member] | Issue debt instruments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 7,258,670 | 6,743,252
More Than 1 Year [Member] | Other financial liabilities [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  | 9,529 | 29,204
More Than 1 Year [Member] | Guarantees received (margin accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial liabilities |  |  |
Cash And Deposits In Banks [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,065,411 | 1,452,922
Cash And Deposits In Banks [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,065,411 | 1,452,922
Cash And Deposits In Banks [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash And Deposits In Banks [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash And Deposits In Banks [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash And Deposits In Banks [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,065,411 | 1,452,922
Cash And Deposits In Banks [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash And Deposits In Banks [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash And Deposits In Banks [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash And Deposits In Banks [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash Items In Process Of Collection [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 353,757 | 668,145
Cash Items In Process Of Collection [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 353,757 | 668,145
Cash Items In Process Of Collection [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash Items In Process Of Collection [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash Items In Process Of Collection [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash Items In Process Of Collection [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 353,757 | 668,145
Cash Items In Process Of Collection [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash Items In Process Of Collection [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash Items In Process Of Collection [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Cash Items In Process Of Collection [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Trading Investments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 485,736
Trading Investments [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Trading Investments [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 72,983
Trading Investments [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 4,024
Trading Investments [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 68,277
Trading Investments [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 145,284
Trading Investments [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 110,824
Trading Investments [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 90,507
Trading Investments [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 139,121
Trading Investments [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 340,452
Investments Under Resale Agreements [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Investments Under Resale Agreements [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Investments Under Resale Agreements [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Investments Under Resale Agreements [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Investments Under Resale Agreements [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Investments Under Resale Agreements [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Investments Under Resale Agreements [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Investments Under Resale Agreements [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Investments Under Resale Agreements [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Investments Under Resale Agreements [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Financial Derivative Contracts [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 3,100,635 | 2,238,647
Financial Derivative Contracts [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Financial Derivative Contracts [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 111,268 | 135,780
Financial Derivative Contracts [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 198,876
Financial Derivative Contracts [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 543,722 | 410,415
Financial Derivative Contracts [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 783,014 | 745,071
Financial Derivative Contracts [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 723,622 | 385,428
Financial Derivative Contracts [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 552,133 | 371,090
Financial Derivative Contracts [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 1,041,866 | 737,058
Financial Derivative Contracts [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,317,621 | 1,493,576
Interbank Borrowings [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [1] |  | 162,685
Interbank Borrowings [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [1] |  |
Interbank Borrowings [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [1] |  | 6,064
Interbank Borrowings [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [1] |  | 152,911
Interbank Borrowings [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [1] |  | 3,710
Interbank Borrowings [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [1] |  | 162,685
Interbank Borrowings [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [1] |  |
Interbank Borrowings [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [1] |  |
Interbank Borrowings [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [1] |  |
Interbank Borrowings [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [1] |  |
Loans and Account Receivable From Customers and Interbank Loans, Net [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [2] |  | 27,563,229
Loans and Account Receivable From Customers and Interbank Loans, Net [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [2] |  | 769,823
Loans and Account Receivable From Customers and Interbank Loans, Net [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [2] |  | 2,206,734
Loans and Account Receivable From Customers and Interbank Loans, Net [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [2] |  | 2,288,372
Loans and Account Receivable From Customers and Interbank Loans, Net [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [2] |  | 4,348,975
Loans and Account Receivable From Customers and Interbank Loans, Net [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [2] |  | 9,613,904
Loans and Account Receivable From Customers and Interbank Loans, Net [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [2] |  | 5,187,501
Loans and Account Receivable From Customers and Interbank Loans, Net [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [2] |  | 2,938,326
Loans and Account Receivable From Customers and Interbank Loans, Net [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [2] |  | 9,823,498
Loans and Account Receivable From Customers and Interbank Loans, Net [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets | [2] |  | 17,949,325
Available For Sale Investments [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 77,041 | 2,574,546
Available For Sale Investments [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Available For Sale Investments [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 1,064 | 58,850
Available For Sale Investments [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  | 11,788
Available For Sale Investments [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 11,642 | 102,600
Available For Sale Investments [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 12,706 | 173,238
Available For Sale Investments [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 16,331 | 556,289
Available For Sale Investments [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 20,080 | 975,372
Available For Sale Investments [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 27,924 | 869,647
Available For Sale Investments [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 64,335 | 2,401,308
Guarantee Deposits (Margin Accounts) [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 170,232 | 323,767
Guarantee Deposits (Margin Accounts) [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 170,232 | 323,767
Guarantee Deposits (Margin Accounts) [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Guarantee Deposits (Margin Accounts) [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Guarantee Deposits (Margin Accounts) [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Guarantee Deposits (Margin Accounts) [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 170,232 | 323,767
Guarantee Deposits (Margin Accounts) [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Guarantee Deposits (Margin Accounts) [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Guarantee Deposits (Margin Accounts) [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Guarantee Deposits (Margin Accounts) [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Loans and accounts receivables at amortised cost [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 30,213,414 |
Loans and accounts receivables at amortised cost [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 238,212 |
Loans and accounts receivables at amortised cost [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 3,295,003 |
Loans and accounts receivables at amortised cost [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 128,024 |
Loans and accounts receivables at amortised cost [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 4,880,726 |
Loans and accounts receivables at amortised cost [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 10,737,383 |
Loans and accounts receivables at amortised cost [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 5,474,289 |
Loans and accounts receivables at amortised cost [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 3,236,349 |
Loans and accounts receivables at amortised cost [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 10,765,393 |
Loans and accounts receivables at amortised cost [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 19,476,031 |
Loans and account receivable at fvoci [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 68,694 |
Loans and account receivable at fvoci [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Loans and account receivable at fvoci [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Loans and account receivable at fvoci [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,323,442 |
Loans and account receivable at fvoci [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 25,294 |
Loans and account receivable at fvoci [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 25,294 |
Loans and account receivable at fvoci [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 4,949 |
Loans and account receivable at fvoci [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Loans and account receivable at fvoci [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 38,451 |
Loans and account receivable at fvoci [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 43,400 |
Debt Instruments At FVOCI [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,394,323 |
Debt Instruments At FVOCI [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Debt Instruments At FVOCI [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,391,329 |
Debt Instruments At FVOCI [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Debt Instruments At FVOCI [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 1 |
Debt Instruments At FVOCI [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,391,330 |
Debt Instruments At FVOCI [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 86 |
Debt Instruments At FVOCI [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Debt Instruments At FVOCI [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,907 |
Debt Instruments At FVOCI [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 2,993 |
Equity instruments at fvoci [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 483 |
Equity instruments at fvoci [Member] | Demand [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Equity instruments at fvoci [Member] | Not Later Than One Month [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Equity instruments at fvoci [Member] | Later Than One Month And Not Later Than Three Months [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Equity instruments at fvoci [Member] | More Than 3 Months To 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Equity instruments at fvoci [Member] | Due Within 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Equity instruments at fvoci [Member] | Between 1 and 3 years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Equity instruments at fvoci [Member] | Later than three years and not later than five years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  |  |
Equity instruments at fvoci [Member] | Due After 5 Years [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | 483 |
Equity instruments at fvoci [Member] | More Than 1 Year [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total financial assets |  | $ 483 |
[1] | Interbank loans are presented on a gross basis. The amount of allowance is Ch$472 million.
[2] | Loans and accounts receivables from customers are presented on a gross basis. Provisions amounts according to type of loan are detailed as follows: Commercial loans Ch$ 437,863 million, Mortgage loans Ch$ 69,066 million, and Consumer loans Ch$ 283,756 million.

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