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Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances - Issued Foreign Letters Of Credit [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 of beginning balance $ 343,663 $ 316,916
Net change on exposures (14,806) 32,926
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 29,898 (6,179)
Total 358,755 343,663
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 of beginning balance 298,841 149,753
Net change on exposures (59,551) 53,462
Transfer to Stage 1 19,728 136,838
Transfer to Stage 2 (788) (37,319)
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 19,409 (3,893)
Total 277,639 298,841
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 of beginning balance 1,881 1,308
Net change on exposures (503) 830
Transfer to Stage 1 866
Transfer to Stage 2 (25) (1,048)
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 225 (75)
Total 1,578 1,881
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 of beginning balance 42,941 165,538
Net change on exposures 45,249 (20,836)
Transfer to Stage 1 (19,728) (136,838)
Transfer to Stage 2 788 37,319
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 10,262 (2,242)
Total 79,512 42,941
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 of beginning balance 317
Net change on exposures (1) (530)
Transfer to Stage 1 (866)
Transfer to Stage 2 25 1,048
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 2 31
Total 26
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 of beginning balance
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
Total
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 of beginning balance
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
Total
ECL [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as of beginning balance 235 51
Net change on exposures (55) (23)
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) 7
Changes to models and assumptions (11) 204
Foreign exchange adjustments 32 (4)
Total 200 235
ECL [Member] | Stage 1 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as of beginning balance 129 20
Net change on exposures (32) 7
Transfer to Stage 1 14 2
Transfer to Stage 2 (1) (10)
Transfer to Stage 3
Impact on year-end ECL of exposures transferred between stages during the year** (1) 1
Changes to models and assumptions 111
Foreign exchange adjustments 12 (2)
Total 121 129
ECL [Member] | Stage 1 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as of beginning balance 1
Net change on exposures 13 3
Transfer to Stage 1
Transfer to Stage 2 (4)
Transfer to Stage 3
Impact on year-end ECL of exposures transferred between stages during the year**
Changes to models and assumptions (11)
Foreign exchange adjustments 2
Total 4
ECL [Member] | Stage 2 Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as of beginning balance 106 11
Net change on exposures (36) (13)
Transfer to Stage 1 (14) (2)
Transfer to Stage 2 1 10
Transfer to Stage 3
Impact on year-end ECL of exposures transferred between stages during the year** 10
Changes to models and assumptions 92
Foreign exchange adjustments 18 (2)
Total 75 106
ECL [Member] | Stage 2 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as of beginning balance 19
Net change on exposures (19)
Transfer to Stage 1
Transfer to Stage 2 4
Transfer to Stage 3
Impact on year-end ECL of exposures transferred between stages during the year** (4)
Changes to models and assumptions
Foreign exchange adjustments
Total
ECL [Member] | Stage 3 - Individual [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as of beginning balance
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
Total
ECL [Member] | Stage 3 - Group [Member]    
Provisions (Details) - Schedule of change in gross carrying amount and ECL allowances [Line Items]    
Outstanding exposure as of beginning balance
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
Total