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Loans to Customers at Amortized Cost (Details) - Schedule of change in gross carrying amount and ECL allowances - CLP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Commercial loans [Member] | Gross Carrying Amount [Member]    
Loans to Customers at Amortized Costs    
Balance $ 16,294,212 $ 15,438,398
Net change on Balance [1] 1,461,050 1,118,555
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 [2]
Changes to models and assumptions
Amounts written off (69,193) (55,698)
Foreign exchange adjustments (84,472) (207,043)
Subtotal Commercial loans 17,601,597 16,294,212
Commercial loans [Member] | Gross Carrying Amount [Member] | Stage 1 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance 9,880,799 9,426,420
Net change on Balance [1] 786,574 861,027
Transfer to Stage 1 501,608 873,349
Transfer to Stage 2 (2,224,652) (1,120,580)
Transfer to Stage 3 (5,865) (2,593)
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments (20,130) (156,824)
Subtotal Commercial loans 8,918,334 9,880,799
Commercial loans [Member] | Gross Carrying Amount [Member] | Stage 1 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 3,369,494 3,049,264
Net change on Balance [1] 551,556 452,929
Transfer to Stage 1 1,640,602 1,005,072
Transfer to Stage 2 (1,236,055) (1,118,008)
Transfer to Stage 3 (32,996) (13,769)
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (77) (55)
Foreign exchange adjustments (1,326) (5,939)
Subtotal Commercial loans 4,291,198 3,369,494
Commercial loans [Member] | Gross Carrying Amount [Member] | Stage 2 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance 2,059,481 2,134,848
Net change on Balance [1] 17,987 (231,267)
Transfer to Stage 1 (501,608) (873,232)
Transfer to Stage 2 2,232,210 1,130,960
Transfer to Stage 3 (84,410) (65,157)
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (1,561) (65)
Foreign exchange adjustments (60,288) (36,606)
Subtotal Commercial loans 3,661,811 2,059,481
Commercial loans [Member] | Gross Carrying Amount [Member] | Stage 2 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 561,831 460,251
Net change on Balance [1] 114,618 57,965
Transfer to Stage 1 (1,636,469) (1,002,422)
Transfer to Stage 2 1,308,926 1,168,875
Transfer to Stage 3 (146,784) (121,315)
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (3,710) (371)
Foreign exchange adjustments 1,398 (1,152)
Subtotal Commercial loans 199,810 561,831
Commercial loans [Member] | Gross Carrying Amount [Member] | Stage 3 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance 152,972 120,564
Net change on Balance [1] (26,075) (9,953)
Transfer to Stage 1 (117)
Transfer to Stage 2 (7,558) (10,380)
Transfer to Stage 3 90,275 67,750
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (1,446) (8,587)
Foreign exchange adjustments (3,719) (6,305)
Subtotal Commercial loans 204,449 152,972
Commercial loans [Member] | Gross Carrying Amount [Member] | Stage 3 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 267,999 246,436
Net change on Balance [1] 13,863 (13,173)
Transfer to Stage 1 (4,133) (2,650)
Transfer to Stage 2 (72,871) (50,867)
Transfer to Stage 3 179,780 135,084
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (62,107) (46,614)
Foreign exchange adjustments (407) (217)
Subtotal Commercial loans 322,124 267,999
Commercial loans [Member] | Gross Carrying Amount [Member] | POCI [Member]    
Loans to Customers at Amortized Costs    
Balance 1,636 615
Net change on Balance [1] 2,527 1,027
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 [2]
Changes to models and assumptions
Amounts written off (292) (6)
Foreign exchange adjustments
Subtotal Commercial loans 3,871 1,636
Commercial loans [Member] | ECL [Member]    
Loans to Customers at Amortized Costs    
Balance 254,801 228,864
Net change on Balance [1] 227,433 35,779
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 [2] 42,641 29,160
Changes to models and assumptions 29,881 18,386
Amounts written off (69,193) (55,698)
Foreign exchange adjustments (4,173) (1,690)
Subtotal Commercial loans 481,390 254,801
Commercial loans [Member] | ECL [Member] | Stage 1 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance 8,945 24,880
Net change on Balance [1] 26,720 (14,709)
Transfer to Stage 1 3,278 9,699
Transfer to Stage 2 (6,538) (4,449)
Transfer to Stage 3 (17) (99)
Impact on year-end ECL of exposures transferred between stages during the year [2] (2,031) (7,346)
Changes to models and assumptions 15,097 944
Amounts written off
Foreign exchange adjustments (82) 25
Subtotal Commercial loans 45,372 8,945
Commercial loans [Member] | ECL [Member] | Stage 1 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 17,743 21,594
Net change on Balance [1] 26,706 3,915
Transfer to Stage 1 76,242 49,310
Transfer to Stage 2 (16,158) (19,312)
Transfer to Stage 3 (1,000) (1,050)
Impact on year-end ECL of exposures transferred between stages during the year [2] (55,735) (36,508)
Changes to models and assumptions 36,476 (82)
Amounts written off (77) (55)
Foreign exchange adjustments (42) (69)
Subtotal Commercial loans 84,155 17,743
Commercial loans [Member] | ECL [Member] | Stage 2 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance 42,406 32,343
Net change on Balance [1] 110,560 (3,240)
Transfer to Stage 1 (3,278) (9,606)
Transfer to Stage 2 7,431 7,184
Transfer to Stage 3 (15,037) (10,055)
Impact on year-end ECL of exposures transferred between stages during the year [2] 35,905 7,092
Changes to models and assumptions (8,106) 18,860
Amounts written off (1,561) (65)
Foreign exchange adjustments (2,131) (107)
Subtotal Commercial loans 166,189 42,406
Commercial loans [Member] | ECL [Member] | Stage 2 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 31,527 21,167
Net change on Balance [1] 12,959 5,054
Transfer to Stage 1 (75,140) (48,694)
Transfer to Stage 2 32,656 28,065
Transfer to Stage 3 (14,807) (12,628)
Impact on year-end ECL of exposures transferred between stages during the year [2] 31,119 39,878
Changes to models and assumptions (2,555) (861)
Amounts written off (3,710) (371)
Foreign exchange adjustments 54 (83)
Subtotal Commercial loans 12,103 31,527
Commercial loans [Member] | ECL [Member] | Stage 3 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance 47,296 32,694
Net change on Balance [1] 7,313 7,859
Transfer to Stage 1 (93)
Transfer to Stage 2 (893) (2,734)
Transfer to Stage 3 15,054 10,153
Impact on year-end ECL of exposures transferred between stages during the year [2] 12,246 9,378
Changes to models and assumptions 11,812
Amounts written off (1,446) (8,587)
Foreign exchange adjustments (1,671) (1,374)
Subtotal Commercial loans 89,711 47,296
Commercial loans [Member] | ECL [Member] | Stage 3 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 106,609 95,887
Net change on Balance [1] 41,847 36,913
Transfer to Stage 1 (1,102) (616)
Transfer to Stage 2 (16,498) (8,754)
Transfer to Stage 3 15,807 13,679
Impact on year-end ECL of exposures transferred between stages during the year [2] 21,137 16,666
Changes to models and assumptions (22,816) (470)
Amounts written off (62,107) (46,614)
Foreign exchange adjustments (301) (82)
Subtotal Commercial loans 82,576 106,609
Commercial loans [Member] | ECL [Member] | POCI [Member]    
Loans to Customers at Amortized Costs    
Balance 275 299
Net change on Balance [1] 1,328 (13)
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 [2]
Changes to models and assumptions (27) (5)
Amounts written off (292) (6)
Foreign exchange adjustments
Subtotal Commercial loans 1,284 275
Mortgage loans [Member] | Gross Carrying Amount [Member]    
Loans to Customers at Amortized Costs    
Balance 9,206,727 8,052,073
Net change on Balance [1] 194,308 1,162,444
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 [2]
Changes to models and assumptions
Amounts written off (13,663) (7,790)
Foreign exchange adjustments
Subtotal Mortgage loans 9,387,372 9,206,727
Mortgage loans [Member] | Gross Carrying Amount [Member] | Stage 1 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Mortgage loans
Mortgage loans [Member] | Gross Carrying Amount [Member] | Stage 1 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 8,209,100 6,893,619
Net change on Balance [1] 302,255 1,312,226
Transfer to Stage 1 1,456,154 1,516,595
Transfer to Stage 2 (1,231,376) (1,513,235)
Transfer to Stage 3 (71,361) (105)
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (11)
Foreign exchange adjustments
Subtotal Mortgage loans 8,664,761 8,209,100
Mortgage loans [Member] | Gross Carrying Amount [Member] | Stage 2 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Mortgage loans
Mortgage loans [Member] | Gross Carrying Amount [Member] | Stage 2 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 822,524 993,085
Net change on Balance [1] (81,433) (117,481)
Transfer to Stage 1 (1,455,965) (1,516,155)
Transfer to Stage 2 1,274,646 1,532,523
Transfer to Stage 3 (153,543) (69,448)
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (4,232)
Foreign exchange adjustments
Subtotal Mortgage loans 401,997 822,524
Mortgage loans [Member] | Gross Carrying Amount [Member] | Stage 3 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Mortgage loans
Mortgage loans [Member] | Gross Carrying Amount [Member] | Stage 3 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 175,103 165,369
Net change on Balance [1] (26,928) (32,301)
Transfer to Stage 1 (189) (440)
Transfer to Stage 2 (43,270) (19,288)
Transfer to Stage 3 224,904 69,553
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (9,420) (7,790)
Foreign exchange adjustments
Subtotal Mortgage loans 320,200 175,103
Mortgage loans [Member] | Gross Carrying Amount [Member] | POCI [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [1] 414
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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Mortgage loans 414
Mortgage loans [Member] | ECL [Member]    
Loans to Customers at Amortized Costs    
Balance 43,708 34,330
Net change on Balance [1] 4,121 8,059
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 [2] 2,154 5,574
Changes to models and assumptions (1,668) 3,535
Amounts written off (13,663) (7,790)
Foreign exchange adjustments
Subtotal Mortgage loans 34,652 43,708
Mortgage loans [Member] | ECL [Member] | Stage 1 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Mortgage loans
Mortgage loans [Member] | ECL [Member] | Stage 1 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 1,411 724
Net change on Balance [1] (317) 739
Transfer to Stage 1 29,878 16,318
Transfer to Stage 2 (1,244) (742)
Transfer to Stage 3 (243)
Impact on year-end ECL of exposures transferred between stages during the year [2] (28,455) (15,913)
Changes to models and assumptions 6,638 285
Amounts written off (11)
Foreign exchange adjustments
Subtotal Mortgage loans 7,657 1,411
Mortgage loans [Member] | ECL [Member] | Stage 2 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Mortgage loans
Mortgage loans [Member] | ECL [Member] | Stage 2 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 29,363 16,895
Net change on Balance [1] (7,192) 6,768
Transfer to Stage 1 (29,859) (16,281)
Transfer to Stage 2 4,951 2,239
Transfer to Stage 3 (7,104) (2,770)
Impact on year-end ECL of exposures transferred between stages during the year [2] 20,805 19,262
Changes to models and assumptions (511) 3,250
Amounts written off (4,232)
Foreign exchange adjustments
Subtotal Mortgage loans 6,221 29,363
Mortgage loans [Member] | ECL [Member] | Stage 3 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Mortgage loans
Mortgage loans [Member] | ECL [Member] | Stage 3 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 12,934 16,711
Net change on Balance [1] 11,593 552
Transfer to Stage 1 (19) (37)
Transfer to Stage 2 (3,707) (1,497)
Transfer to Stage 3 7,347 2,770
Impact on year-end ECL of exposures transferred between stages during the year [2] 9,804 2,225
Changes to models and assumptions (7,788)
Amounts written off (9,420) (7,790)
Foreign exchange adjustments
Subtotal Mortgage loans 20,744 12,934
Mortgage loans [Member] | ECL [Member] | POCI [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [1] 37
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 [2]
Changes to models and assumptions (7)
Amounts written off
Foreign exchange adjustments
Subtotal Mortgage loans 30
Consumer loans [Member] | Gross Carrying Amount [Member]    
Loans to Customers at Amortized Costs    
Balance 4,532,333 4,436,161
Net change on Balance [1] (334,120) 349,035
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 [2]
Changes to models and assumptions
Amounts written off (250,122) (249,712)
Foreign exchange adjustments 630 (3,151)
Subtotal Consumer loans 3,948,721 4,532,333
Consumer loans [Member] | Gross Carrying Amount [Member] | Stage 1 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Consumer loans
Consumer loans [Member] | Gross Carrying Amount [Member] | Stage 1 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 3,860,973 3,166,290
Net change on Balance [1] (243,577) 493,973
Transfer to Stage 1 963,136 1,688,787
Transfer to Stage 2 (1,216,941) (1,472,886)
Transfer to Stage 3 (68,493) (12,204)
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (122) (120)
Foreign exchange adjustments 526 (2,867)
Subtotal Consumer loans 3,295,502 3,860,973
Consumer loans [Member] | Gross Carrying Amount [Member] | Stage 2 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Consumer loans
Consumer loans [Member] | Gross Carrying Amount [Member] | Stage 2 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 372,814 975,898
Net change on Balance [1] (126,358) (212,059)
Transfer to Stage 1 (957,243) (1,679,389)
Transfer to Stage 2 1,302,454 1,588,909
Transfer to Stage 3 (264,083) (299,286)
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (3,272) (978)
Foreign exchange adjustments 128 (281)
Subtotal Consumer loans 324,440 372,814
Consumer loans [Member] | Gross Carrying Amount [Member] | Stage 3 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Consumer loans
Consumer loans [Member] | Gross Carrying Amount [Member] | Stage 3 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 298,458 293,973
Net change on Balance [1] 34,201 67,033
Transfer to Stage 1 (5,893) (9,398)
Transfer to Stage 2 (85,513) (116,023)
Transfer to Stage 3 332,576 311,490
Impact on year-end ECL of exposures transferred between stages during the year [2]
Changes to models and assumptions
Amounts written off (246,703) (248,614)
Foreign exchange adjustments (24) (3)
Subtotal Consumer loans 327,102 298,458
Consumer loans [Member] | Gross Carrying Amount [Member] | POCI [Member]    
Loans to Customers at Amortized Costs    
Balance 88
Net change on Balance [1] 1,614 88
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 [2]
Changes to models and assumptions
Amounts written off (25)
Foreign exchange adjustments
Subtotal Consumer loans 1,677 88
Consumer loans [Member] | ECL [Member]    
Loans to Customers at Amortized Costs    
Balance 350,724 322,184
Net change on Balance [1] 63,836 152,138
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 [2] 90,128 126,401
Changes to models and assumptions 65,456
Amounts written off (250,122) (249,712)
Foreign exchange adjustments 43 (287)
Subtotal Consumer loans 320,065 350,724
Consumer loans [Member] | ECL [Member] | Stage 1 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Consumer loans
Consumer loans [Member] | ECL [Member] | Stage 1 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 98,536 49,273
Net change on Balance [1] (15,947) 60,685
Transfer to Stage 1 189,887 243,865
Transfer to Stage 2 (78,494) (90,968)
Transfer to Stage 3 (6,780) (2,646)
Impact on year-end ECL of exposures transferred between stages during the year [2] (134,853) (161,427)
Changes to models and assumptions 93,176
Amounts written off (122) (120)
Foreign exchange adjustments (4) (126)
Subtotal Consumer loans 145,399 98,536
Consumer loans [Member] | ECL [Member] | Stage 2 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Consumer loans
Consumer loans [Member] | ECL [Member] | Stage 2 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 75,235 110,292
Net change on Balance [1] (34,347) (48,295)
Transfer to Stage 1 (187,255) (240,444)
Transfer to Stage 2 117,252 129,954
Transfer to Stage 3 (68,958) (78,223)
Impact on year-end ECL of exposures transferred between stages during the year [2] 141,034 203,042
Changes to models and assumptions 10,048
Amounts written off (3,272) (978)
Foreign exchange adjustments 52 (113)
Subtotal Consumer loans 49,789 75,235
Consumer loans [Member] | ECL [Member] | Stage 3 - Individual [Member]    
Loans to Customers at Amortized Costs    
Balance
Net change on Balance [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 [2]
Changes to models and assumptions
Amounts written off
Foreign exchange adjustments
Subtotal Consumer loans
Consumer loans [Member] | ECL [Member] | Stage 3 - Group [Member]    
Loans to Customers at Amortized Costs    
Balance 176,909 162,619
Net change on Balance [1] 113,480 139,704
Transfer to Stage 1 (2,632) (3,421)
Transfer to Stage 2 (38,758) (38,986)
Transfer to Stage 3 75,738 80,869
Impact on year-end ECL of exposures transferred between stages during the year [2] 83,947 84,786
Changes to models and assumptions (37,619)
Amounts written off (246,703) (248,614)
Foreign exchange adjustments (5) (48)
Subtotal Consumer loans 124,357 176,909
Consumer loans [Member] | ECL [Member] | POCI [Member]    
Loans to Customers at Amortized Costs    
Balance 44
Net change on Balance [1] 650 44
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 [2]
Changes to models and assumptions (149)
Amounts written off (25)
Foreign exchange adjustments
Subtotal Consumer loans 520 44
Loans To Customers [Member] | Gross Carrying Amount [Member]    
Loans to Customers at Amortized Costs    
Total 30,937,690 30,033,272
Loans To Customers [Member] | Gross Carrying Amount [Member] | Stage 1 - Individual [Member]    
Loans to Customers at Amortized Costs    
Total 8,918,334 9,880,799
Loans To Customers [Member] | Gross Carrying Amount [Member] | Stage 1 - Group [Member]    
Loans to Customers at Amortized Costs    
Total 16,251,461 15,439,567
Loans To Customers [Member] | Gross Carrying Amount [Member] | Stage 2 - Individual [Member]    
Loans to Customers at Amortized Costs    
Total 3,661,811 2,059,481
Loans To Customers [Member] | Gross Carrying Amount [Member] | Stage 2 - Group [Member]    
Loans to Customers at Amortized Costs    
Total 926,247 1,757,169
Loans To Customers [Member] | Gross Carrying Amount [Member] | Stage 3 - Individual [Member]    
Loans to Customers at Amortized Costs    
Total 204,449 152,972
Loans To Customers [Member] | Gross Carrying Amount [Member] | Stage 3 - Group [Member]    
Loans to Customers at Amortized Costs    
Total 969,426 741,560
Loans To Customers [Member] | Gross Carrying Amount [Member] | POCI [Member]    
Loans to Customers at Amortized Costs    
Total 5,962 1,724
Loans To Customers [Member] | ECL [Member]    
Loans to Customers at Amortized Costs    
Total 836,107 649,233
Loans To Customers [Member] | ECL [Member] | Stage 1 - Individual [Member]    
Loans to Customers at Amortized Costs    
Total 45,372 8,945
Loans To Customers [Member] | ECL [Member] | Stage 1 - Group [Member]    
Loans to Customers at Amortized Costs    
Total 237,211 117,690
Loans To Customers [Member] | ECL [Member] | Stage 2 - Individual [Member]    
Loans to Customers at Amortized Costs    
Total 166,189 42,406
Loans To Customers [Member] | ECL [Member] | Stage 2 - Group [Member]    
Loans to Customers at Amortized Costs    
Total 68,113 136,125
Loans To Customers [Member] | ECL [Member] | Stage 3 - Individual [Member]    
Loans to Customers at Amortized Costs    
Total 89,711 47,296
Loans To Customers [Member] | ECL [Member] | Stage 3 - Group [Member]    
Loans to Customers at Amortized Costs    
Total 227,677 296,452
Loans To Customers [Member] | ECL [Member] | POCI [Member]    
Loans to Customers at Amortized Costs    
Total $ 1,834 $ 319
[1] Net change between assets originated and assets repaid, excluding write offs.
[2] Represents the change in the year-end ECLs of exposures that were transferred from one stage to another during the year.