XML 199 R176.htm IDEA: XBRL DOCUMENT v3.20.1
Provisions - Issued Foreign Letters of Credit - Outstanding Exposures (Details) - Issued foreign letters of credit [Member] - CLP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disclosure of other provisions [line items]    
Exposure as at beginning of period $ 388,396 $ 94,313
Net change on exposures (62,629) 283,384
Transfer to Stage 1
Transfer to Stage 2
Transfer to Stage 3
Foreign exchange adjustments (8,851) 10,699
Exposure as at ending of period 316,916 388,396
Stage 1 - Individual [Member]    
Disclosure of other provisions [line items]    
Exposure as at beginning of period 344,874 80,106
Net change on exposures (41,247) 262,824
Transfer to Stage 1 20,794 6,268
Transfer to Stage 2 (167,024) (13,420)
Transfer to Stage 3
Foreign exchange adjustments (7,644) 9,096
Exposure as at ending of period 149,753 344,874
Stage 1 - Group [Member]    
Disclosure of other provisions [line items]    
Exposure as at beginning of period 1,585 1,737
Net change on exposures (362) 832
Transfer to Stage 1 491
Transfer to Stage 2 (333) (1,098)
Transfer to Stage 3
Foreign exchange adjustments (73) 114
Exposure as at ending of period 1,308 1,585
Stage 2 - Individual [Member]    
Disclosure of other provisions [line items]    
Exposure as at beginning of period 41,823 11,984
Net change on exposures (21,391) 21,226
Transfer to Stage 1 (20,794) (6,268)
Transfer to Stage 2 167,024 13,420
Transfer to Stage 3
Foreign exchange adjustments (1,124) 1,461
Exposure as at ending of period 165,538 41,823
Stage 2 - Group [Member]    
Disclosure of other provisions [line items]    
Exposure as at beginning of period 114 486
Net change on exposures 371 (1,498)
Transfer to Stage 1 (491)  
Transfer to Stage 2 333 1,098
Transfer to Stage 3
Foreign exchange adjustments (10) 28
Exposure as at ending of period 317 114
Stage 3 - Individual [Member]    
Disclosure of other provisions [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]    
Disclosure of other provisions [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