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Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances - Undrawn Credit Lines [Member] - CLP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Gross carrying amount [member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period $ 7,650,382 $ 7,870,260
Net change on exposures 560,338 (106,609)
Transfer to Stage 1
Transfer to Stage 2
Transfer to Stage 3
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 440,473 (113,269)
Total 8,651,193 7,650,382
Gross carrying amount [member] | Stage 1 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 1,055,119 1,135,118
Net change on exposures 110,630 (28,109)
Transfer to Stage 1 21,447 80,990
Transfer to Stage 2 (20,684) (129,707)
Transfer to Stage 3 (62) (183)
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 11,998 (2,990)
Total 1,178,448 1,055,119
Gross carrying amount [member] | Stage 1 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 6,244,331 6,434,148
Net change on exposures 493,150 20,484
Transfer to Stage 1 547,431 516,008
Transfer to Stage 2 (562,964) (597,956)
Transfer to Stage 3 (4,738) (18,407)
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 413,356 (109,946)
Total 7,130,566 6,244,331
Gross carrying amount [member] | Stage 2 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 142,328 83,458
Net change on exposures (5,814) 11,628
Transfer to Stage 1 (21,447) (80,990)
Transfer to Stage 2 20,850 129,751
Transfer to Stage 3 (386) (949)
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 2,281 (570)
Total 137,812 142,328
Gross carrying amount [member] | Stage 2 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 182,812 207,646
Net change on exposures (32,854) (102,141)
Transfer to Stage 1 (547,431) (515,854)
Transfer to Stage 2 568,515 606,469
Transfer to Stage 3 (2,046) (14,838)
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 11,027 1,530
Total 180,023 182,812
Gross carrying amount [member] | Stage 3 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 857 359
Net change on exposures (446) (568)
Transfer to Stage 1
Transfer to Stage 2 (166) (44)
Transfer to Stage 3 448 1,132
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 39 (22)
Total 732 857
Gross carrying amount [member] | Stage 3 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 24,935 9,531
Net change on exposures (4,328) (7,903)
Transfer to Stage 1 (154)
Transfer to Stage 2 (5,551) (8,513)
Transfer to Stage 3 6,784 33,245
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 1,772 (1,271)
Total 23,612 24,935
ECL [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 78,744 20,816
Net change on exposures 1,273 (3,483)
Transfer to Stage 1
Transfer to Stage 2
Transfer to Stage 3
Impact on year-end ECL of exposures transferred between stages during the year (1,366) 7,576
Changes to models and assumptions 235 54,148
Foreign exchange adjustments 3,147 (313)
Total 82,033 78,744
ECL [Member] | Stage 1 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 1,236 234
Net change on exposures (647) 181
Transfer to Stage 1 28 19
Transfer to Stage 2 (48) (93)
Transfer to Stage 3
Impact on year-end ECL of exposures transferred between stages during the year (2) (1)
Changes to models and assumptions 899
Foreign exchange adjustments 8 (3)
Total 575 1,236
ECL [Member] | Stage 1 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 65,078 13,135
Net change on exposures 4,207 (1,726)
Transfer to Stage 1 6,216 7,348
Transfer to Stage 2 (6,833) (5,942)
Transfer to Stage 3 (68) (317)
Impact on year-end ECL of exposures transferred between stages during the year 370 (293)
Changes to models and assumptions (1,574) 53,001
Foreign exchange adjustments 2,594 (128)
Total 69,990 65,078
ECL [Member] | Stage 2 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 1,038 185
Net change on exposures (598) 502
Transfer to Stage 1 (28) (19)
Transfer to Stage 2 159 101
Transfer to Stage 3 (28) (67)
Impact on year-end ECL of exposures transferred between stages during the year (73) 77
Changes to models and assumptions 267
Foreign exchange adjustments 15 (8)
Total 485 1,038
ECL [Member] | Stage 2 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 3,268 2,644
Net change on exposures (1,345) (1,262)
Transfer to Stage 1 (6,216) (7,301)
Transfer to Stage 2 8,760 9,664
Transfer to Stage 3 (33) (766)
Impact on year-end ECL of exposures transferred between stages during the year (3,159) (1,035)
Changes to models and assumptions (224) 1,294
Foreign exchange adjustments 79 30
Total 1,130 3,268
ECL [Member] | Stage 3 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 420 78
Net change on exposures (219) (174)
Transfer to Stage 1
Transfer to Stage 2 (111) (8)
Transfer to Stage 3 28 67
Impact on year-end ECL of exposures transferred between stages during the year 192 349
Changes to models and assumptions 1 116
Foreign exchange adjustments 21 (8)
Total 332 420
ECL [Member] | Stage 3 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as beginning of period 7,704 4,540
Net change on exposures (125) (1,004)
Transfer to Stage 1 (47)
Transfer to Stage 2 (1,927) (3,722)
Transfer to Stage 3 101 1,083
Impact on year-end ECL of exposures transferred between stages during the year 1,306 8,479
Changes to models and assumptions 2,032 (1,429)
Foreign exchange adjustments 430 (196)
Total $ 9,521 $ 7,704