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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, 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 at beginning of period $ 224,079 $ 280,838
Net change on exposures 162,065 (51,090)
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 53,525 (5,669)
Exposure as Total 439,669 224,079
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 at beginning of period 186,051 249,306
Net change on exposures 168,112 (31,759)
Transfer to Stage 1 3,870 29,099
Transfer to Stage 2 (2,300) (55,270)
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 47,746 (5,325)
Exposure as Total 403,479 186,051
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 at beginning of period 131 395
Net change on exposures 369 (231)
Transfer to Stage 1 320
Transfer to Stage 2 (313) (65)
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 60 32
Exposure as Total 567 131
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 at beginning of period 32,267 31,137
Net change on exposures (6,416) (19,038)
Transfer to Stage 1 (3,870) (29,099)
Transfer to Stage 2 8,859 55,270
Transfer to Stage 3 (6,069)
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 4,783 66
Exposure as Total 35,623 32,267
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 at beginning of period
Net change on exposures (62)
Transfer to Stage 1 (320)
Transfer to Stage 2 313 65
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 7 (3)
Exposure as Total
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 at beginning of period 5,630
Net change on exposures
Transfer to Stage 1
Transfer to Stage 2 (6,559)
Transfer to Stage 3 6,069
Impact on year-end ECL of exposures transferred between stages during the year
Changes to models and assumptions
Foreign exchange adjustments 929 (439)
Exposure as Total 5,630
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 at beginning of period
Net change on exposures
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
Exposure as Total
ECL [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding Exposure as at beginning of period 6,068 63
Net change on exposures (126) 2,819
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 (3,369) 2,974
Changes to models and assumptions 1 393
Foreign exchange adjustments 1,180 (181)
Exposure as Total 3,754 6,068
ECL [Member] | Stage 1 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding Exposure as at beginning of period 174 41
Net change on exposures 26 (19)
Transfer to Stage 1 8 1
Transfer to Stage 2 (2) (18)
Transfer to Stage 3
Impact on year-end ECL of exposures transferred between stages during the year (2)
Changes to models and assumptions 167
Foreign exchange adjustments 35 2
Exposure as Total 239 174
ECL [Member] | Stage 1 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding Exposure as at beginning of period
Net change on exposures 1
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 1
Foreign exchange adjustments
Exposure as Total 2
ECL [Member] | Stage 2 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding Exposure as at beginning of period 264 22
Net change on exposures (153) 2,838
Transfer to Stage 1 (8) (1)
Transfer to Stage 2 6,561 18
Transfer to Stage 3 (3,034)
Impact on year-end ECL of exposures transferred between stages during the year (3,367) 159
Changes to models and assumptions 226
Foreign exchange adjustments 216 36
Exposure as Total 3,513 264
ECL [Member] | Stage 2 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding Exposure as at beginning of period
Net change on exposures
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
Exposure as Total
ECL [Member] | Stage 3 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding Exposure as at beginning of period 5,630
Net change on exposures
Transfer to Stage 1
Transfer to Stage 2 (6,559)
Transfer to Stage 3 3,034
Impact on year-end ECL of exposures transferred between stages during the year 2,815
Changes to models and assumptions
Foreign exchange adjustments 929 (219)
Exposure as Total 5,630
ECL [Member] | Stage 3 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding Exposure as at beginning of period
Net change on exposures
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
Exposure as Total