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Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances - Warranty by Endorsement and Sureties [Member] - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period | $ 280,838 | $ 341,676
Net change on exposures | (51,090) | (39,384)
Transfer to Stage 1 |  |
Transfer to Stage 2 |  |
Transfer to Stage 3 |  |
Foreign exchange adjustments | (5,669) | (21,454)
Exposure as at ending of period | 224,079 | 280,838
ECL Exposures On Foreign Office Guarantees [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period | 63 | 428
Net change on exposures | 2,819 | (348)
Transfer to Stage 1 |  |
Transfer to Stage 2 |  |
Impact on year-end ECL of exposures transferred between stages during the year | 2,974 | (1)
Changes to models and assumptions | 393 | (25)
Transfer to Stage 3 |  |
Foreign exchange adjustments | (181) | 9
Exposure as at ending of period | 6,068 | 63
Stage 1 - Individual [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period | 249,306 | 332,965
Net change on exposures | (31,759) | (47,268)
Transfer to Stage 1 | 29,099 | 5,243
Transfer to Stage 2 | (55,270) | (22,454)
Transfer to Stage 3 |  |
Foreign exchange adjustments | (5,325) | (19,180)
Exposure as at ending of period | 186,051 | 249,306
Stage 1 - Individual [Member] | ECL Exposures On Foreign Office Guarantees [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period | 41 | 428
Net change on exposures | (19) | (366)
Transfer to Stage 1 | 1 | 8
Transfer to Stage 2 | (18) | (6)
Impact on year-end ECL of exposures transferred between stages during the year |  | (1)
Changes to models and assumptions | 167 | (32)
Transfer to Stage 3 |  |
Foreign exchange adjustments | 2 | 10
Exposure as at ending of period | 174 | 41
Stage 1 - Group [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period | 395 | 138
Net change on exposures | (231) | 273
Transfer to Stage 1 |  | 7
Transfer to Stage 2 | (65) |
Transfer to Stage 3 |  |
Foreign exchange adjustments | 32 | (23)
Exposure as at ending of period | 131 | 395
Stage 1 - Group [Member] | ECL Exposures On Foreign Office Guarantees [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period |  |
Net change on exposures |  |
Transfer to Stage 1 |  |
Transfer to Stage 2 |  |
Impact on year-end ECL of exposures transferred between stages during the year |  |
Changes to models and assumptions |  |
Transfer to Stage 3 |  |
Foreign exchange adjustments |  |
Exposure as at ending of period |  |
Stage 2 - Individual [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period | 31,137 | 8,573
Net change on exposures | (19,038) | 7,604
Transfer to Stage 1 | (29,099) | (5,243)
Transfer to Stage 2 | 55,270 | 22,454
Transfer to Stage 3 | (6,069) |
Foreign exchange adjustments | 66 | (2,251)
Exposure as at ending of period | 32,267 | 31,137
Stage 2 - Individual [Member] | ECL Exposures On Foreign Office Guarantees [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period | 22 |
Net change on exposures | 2,838 | 18
Transfer to Stage 1 | (1) | (8)
Transfer to Stage 2 | 18 | 6
Impact on year-end ECL of exposures transferred between stages during the year | 159 |
Changes to models and assumptions | 226 | 7
Transfer to Stage 3 | (3,034) |
Foreign exchange adjustments | 36 | (1)
Exposure as at ending of period | 264 | 22
Stage 2 - Group [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period |  |
Net change on exposures | (62) | 7
Transfer to Stage 1 |  | (7)
Transfer to Stage 2 | 65 |
Transfer to Stage 3 |  |
Foreign exchange adjustments | (3) |
Exposure as at ending of period |  |
Stage 2 - Group [Member] | ECL Exposures On Foreign Office Guarantees [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period |  |
Net change on exposures |  |
Transfer to Stage 1 |  |
Transfer to Stage 2 |  |
Impact on year-end ECL of exposures transferred between stages during the year |  |
Changes to models and assumptions |  |
Transfer to Stage 3 |  |
Foreign exchange adjustments |  |
Exposure as at ending of period |  |
Stage 3 - Individual [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period |  |
Net change on exposures |  |
Transfer to Stage 1 |  |
Transfer to Stage 2 |  |
Transfer to Stage 3 | 6,069 |
Foreign exchange adjustments | (439) |
Exposure as at ending of period | 5,630 |
Stage 3 - Individual [Member] | ECL Exposures On Foreign Office Guarantees [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period |  |
Net change on exposures |  |
Transfer to Stage 1 |  |
Transfer to Stage 2 |  |
Impact on year-end ECL of exposures transferred between stages during the year | 2,815 |
Changes to models and assumptions |  |
Transfer to Stage 3 | 3,034 |
Foreign exchange adjustments | (219) |
Exposure as at ending of period | 5,630 |
Stage 3 - Group [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period |  |
Net change on exposures |  |
Transfer to Stage 1 |  |
Transfer to Stage 2 |  |
Transfer to Stage 3 |  |
Foreign exchange adjustments |  |
Exposure as at ending of period |  |
Stage 3 - Group [Member] | ECL Exposures On Foreign Office Guarantees [Member] |  |
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items] |  |
Exposure as at beginning of period |  |
Net change on exposures |  |
Transfer to Stage 1 |  |
Transfer to Stage 2 |  |
Impact on year-end ECL of exposures transferred between stages during the year |  |
Changes to models and assumptions |  |
Transfer to Stage 3 |  |
Foreign exchange adjustments |  |
Exposure as at ending of period |  |

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