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Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances - Performance Guarantees [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]    
Exposure as at beginning of period $ 2,214,370 $ 2,283,390
Net change on exposures 89,768 (54,199)
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 62,815 (14,821)
Total 2,366,953 2,214,370
Gross carrying amount [member] | Stage 1 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 1,573,058 1,804,374
Net change on exposures 72,215 (33,951)
Transfer to Stage 1 166,106 128,944
Transfer to Stage 2 (149,250) (314,572)
Transfer to Stage 3 (62) (459)
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 56,572 (11,278)
Total 1,718,639 1,573,058
Gross carrying amount [member] | Stage 1 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 46,523 44,325
Net change on exposures (716) (8,832)
Transfer to Stage 1 3,381 29,217
Transfer to Stage 2 (3,911) (17,839)
Transfer to Stage 3 (260) (326)
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 123 (22)
Total 45,140 46,523
Gross carrying amount [member] | Stage 2 Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 589,838 420,427
Net change on exposures 21,365 (6,254)
Transfer to Stage 1 (166,106) (128,944)
Transfer to Stage 2 150,330 314,683
Transfer to Stage 3 (765) (6,511)
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 6,116 (3,563)
Total 600,778 589,838
Gross carrying amount [member] | Stage 2 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 615 10,970
Net change on exposures (882) 1,305
Transfer to Stage 1 (3,381) (29,180)
Transfer to Stage 2 3,998 18,347
Transfer to Stage 3 (47) (826)
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 4 (1)
Total 307 615
Gross carrying amount [member] | Stage 3 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 3,851 2,194
Net change on exposures (1,870) (5,241)
Transfer to Stage 1
Transfer to Stage 2 (1,080) (111)
Transfer to Stage 3 827 6,970
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 39
Total 1,728 3,851
Gross carrying amount [member] | Stage 3 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 485 1,100
Net change on exposures (344) (1,226)
Transfer to Stage 1 (37)
Transfer to Stage 2 (87) (508)
Transfer to Stage 3 307 1,152
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 4
Total 361 485
ECL [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 13,124 4,037
Net change on exposures (5,442) (3,235)
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 (17) 6,680
Changes to models and assumptions (719) 5,639
Foreign exchange adjustments 83 3
Total 7,029 13,124
ECL [Member] | Stage 1 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 2,790 601
Net change on exposures (1,284) 359
Transfer to Stage 1 247 48
Transfer to Stage 2 (277) (222)
Transfer to Stage 3
Impact on year-end ECL of exposures transferred between stages during the year (58) 2
Changes to models and assumptions (2) 2,002
Foreign exchange adjustments 52
Total 1,468 2,790
ECL [Member] | Stage 1 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 917 277
Net change on exposures 16 (160)
Transfer to Stage 1 84 78
Transfer to Stage 2 (77) (169)
Transfer to Stage 3 (5) (2)
Impact on year-end ECL of exposures transferred between stages during the year (27) 235
Changes to models and assumptions (716) 658
Foreign exchange adjustments 3
Total 195 917
ECL [Member] | Stage 2 Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 6,422 1,440
Net change on exposures (2,636) 6,341
Transfer to Stage 1 (247) (48)
Transfer to Stage 2 1,131 237
Transfer to Stage 3 (79) (4,038)
Impact on year-end ECL of exposures transferred between stages during the year (362) 362
Changes to models and assumptions (4) 2,138
Foreign exchange adjustments 28 (10)
Total 4,253 6,422
ECL [Member] | Stage 2 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 3 754
Net change on exposures (47) (674)
Transfer to Stage 1 (84) (68)
Transfer to Stage 2 77 179
Transfer to Stage 3 (5) (6)
Impact on year-end ECL of exposures transferred between stages during the year 67 (172)
Changes to models and assumptions (8) (10)
Foreign exchange adjustments
Total 3 3
ECL [Member] | Stage 3 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 2,992 491
Net change on exposures (1,491) (8,647)
Transfer to Stage 1
Transfer to Stage 2 (854) (15)
Transfer to Stage 3 79 4,038
Impact on year-end ECL of exposures transferred between stages during the year 374 6,261
Changes to models and assumptions 11 851
Foreign exchange adjustments 13
Total 1,111 2,992
ECL [Member] | Stage 3 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Exposure as at beginning of period 474
Net change on exposures (454)
Transfer to Stage 1 (10)
Transfer to Stage 2 (10)
Transfer to Stage 3 10 8
Impact on year-end ECL of exposures transferred between stages during the year (11) (8)
Changes to models and assumptions
Foreign exchange adjustments
Total $ (1)