v3.25.1
Financial Assets at Amortized Cost - Schedule of Bank’s Loan Portfolio (Details) - CLP ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Credit and Contingent Loans Exposure [Member]    
Schedule of Bank’s Loan Portfolio [Line Items]    
Loans and advances to Banks $ 667,703 $ 2,519,931
Commercial loans    
Loans to customers 20,147,980 20,030,044
Allowances Established [Member]    
Schedule of Bank’s Loan Portfolio [Line Items]    
Loans and advances to Banks (1,988) (1,341)
Commercial loans    
Loans to customers (254,568) (259,641)
Domestic Loans [Member] | Credit and Contingent Loans Exposure [Member]    
Schedule of Bank’s Loan Portfolio [Line Items]    
Loans and advances to Banks 300,042 2,100,933
Commercial loans    
Loans to customers 20,028,110 20,008,787
Domestic Loans [Member] | Allowances Established [Member]    
Schedule of Bank’s Loan Portfolio [Line Items]    
Loans and advances to Banks (895)
Commercial loans    
Loans to customers (254,427) (259,349)
Foreign Loans [Member] | Credit and Contingent Loans Exposure [Member]    
Schedule of Bank’s Loan Portfolio [Line Items]    
Loans and advances to Banks 367,661 418,998
Commercial loans    
Loans to customers 119,870 21,257
Foreign Loans [Member] | Allowances Established [Member]    
Schedule of Bank’s Loan Portfolio [Line Items]    
Loans and advances to Banks (1,093) (1,341)
Commercial loans    
Loans to customers (141) (292)
Gross carrying amount [member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 15,080,768 13,547,435
Gross carrying amount [member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (87,485) (89,640)
Gross carrying amount [member] | Agriculture and livestock [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 751,838 788,942
Gross carrying amount [member] | Agriculture and livestock [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (9,240) (9,046)
Gross carrying amount [member] | Fruit [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 730,718 646,608
Gross carrying amount [member] | Fruit [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (9,087) (4,456)
Gross carrying amount [member] | Forestry [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 89,777 101,406
Gross carrying amount [member] | Forestry [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (2,767) (1,352)
Gross carrying amount [member] | Fishing [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 29,465 26,339
Gross carrying amount [member] | Fishing [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (644) (788)
Gross carrying amount [member] | Mining [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 864,867 417,164
Gross carrying amount [member] | Mining [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (3,750) (2,532)
Gross carrying amount [member] | Oil and natural gas [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 211 416
Gross carrying amount [member] | Oil and natural gas [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (8) (8)
Gross carrying amount [member] | Foods, beverages and tobacco [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 657,462 513,197
Gross carrying amount [member] | Foods, beverages and tobacco [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (5,893) (10,565)
Gross carrying amount [member] | Textiles, leather goods and footwear [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 28,874 33,100
Gross carrying amount [member] | Textiles, leather goods and footwear [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (788) (599)
Gross carrying amount [member] | Woods and furnitures [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 89,394 78,409
Gross carrying amount [member] | Woods and furnitures [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (1,225) (1,295)
Gross carrying amount [member] | Cellulose, Paper and printing [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 15,882 16,931
Gross carrying amount [member] | Cellulose, Paper and printing [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (365) (591)
Gross carrying amount [member] | Chemicals and petroleum products [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 321,820 298,883
Gross carrying amount [member] | Chemicals and petroleum products [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (2,389) (2,046)
Gross carrying amount [member] | Metal, non-metal, machine or others [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 482,281 551,922
Gross carrying amount [member] | Metal, non-metal, machine or others [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (5,541) (7,367)
Gross carrying amount [member] | Electricity, gas and water [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 347,040 439,473
Gross carrying amount [member] | Electricity, gas and water [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (1,475) (2,361)
Gross carrying amount [member] | Residential construction [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 195,883 265,086
Gross carrying amount [member] | Residential construction [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (6,461) (9,699)
Gross carrying amount [member] | Non-residential construction (office, civil engineering) [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 482,763 409,154
Gross carrying amount [member] | Non-residential construction (office, civil engineering) [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (10,126) (11,060)
Gross carrying amount [member] | Wholesale [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 1,581,915 1,798,723
Gross carrying amount [member] | Wholesale [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (31,119) (34,250)
Gross carrying amount [member] | Retail, restaurants and hotels [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 1,044,935 1,016,553
Gross carrying amount [member] | Retail, restaurants and hotels [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (35,983) (34,404)
Gross carrying amount [member] | Transport and storage [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 1,036,903 1,105,436
Gross carrying amount [member] | Transport and storage [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (14,832) (16,599)
Gross carrying amount [member] | Communications [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 214,386 102,522
Gross carrying amount [member] | Communications [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (2,746) (2,121)
Gross carrying amount [member] | Financial services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 2,995,023 3,219,991
Gross carrying amount [member] | Financial services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (8,090) (9,217)
Gross carrying amount [member] | Business services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 1,973,354 1,976,971
Gross carrying amount [member] | Business services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (39,158) (38,908)
Gross carrying amount [member] | Real estate services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 3,364,047 3,380,997
Gross carrying amount [member] | Real estate services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (15,900) (16,259)
Gross carrying amount [member] | Student loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 52,511 56,924
Gross carrying amount [member] | Student loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (2,462) (2,744)
Gross carrying amount [member] | Government administration, defence and police force [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 16,895 21,438
Gross carrying amount [member] | Government administration, defence and police force [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (228) (269)
Gross carrying amount [member] | Social services and other community services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 900,847 900,822
Gross carrying amount [member] | Social services and other community services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (13,430) (13,044)
Gross carrying amount [member] | Personal services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 1,878,889 1,862,637
Gross carrying amount [member] | Personal services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (30,861) (28,061)
Gross carrying amount [member] | Residential mortgage loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 13,233,327 12,310,768
Gross carrying amount [member] | Residential mortgage loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (35,632) (33,502)
Gross carrying amount [member] | Consumer loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 5,554,989 5,310,462
Gross carrying amount [member] | Consumer loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (403,234) (417,044)
Gross carrying amount [member] | Domestic Loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 15,080,768 13,547,435
Gross carrying amount [member] | Domestic Loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (87,485) (89,640)
Gross carrying amount [member] | Domestic Loans [Member] | Agriculture and livestock [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 751,838 788,942
Gross carrying amount [member] | Domestic Loans [Member] | Agriculture and livestock [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (9,240) (9,046)
Gross carrying amount [member] | Domestic Loans [Member] | Fruit [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 730,718 646,608
Gross carrying amount [member] | Domestic Loans [Member] | Fruit [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (9,087) (4,456)
Gross carrying amount [member] | Domestic Loans [Member] | Forestry [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 89,777 101,406
Gross carrying amount [member] | Domestic Loans [Member] | Forestry [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (2,767) (1,352)
Gross carrying amount [member] | Domestic Loans [Member] | Fishing [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 29,465 26,339
Gross carrying amount [member] | Domestic Loans [Member] | Fishing [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (644) (788)
Gross carrying amount [member] | Domestic Loans [Member] | Mining [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 864,867 417,164
Gross carrying amount [member] | Domestic Loans [Member] | Mining [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (3,750) (2,532)
Gross carrying amount [member] | Domestic Loans [Member] | Oil and natural gas [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 211 416
Gross carrying amount [member] | Domestic Loans [Member] | Oil and natural gas [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (8) (8)
Gross carrying amount [member] | Domestic Loans [Member] | Foods, beverages and tobacco [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 657,462 513,197
Gross carrying amount [member] | Domestic Loans [Member] | Foods, beverages and tobacco [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (5,893) (10,565)
Gross carrying amount [member] | Domestic Loans [Member] | Textiles, leather goods and footwear [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 28,874 33,100
Gross carrying amount [member] | Domestic Loans [Member] | Textiles, leather goods and footwear [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (788) (599)
Gross carrying amount [member] | Domestic Loans [Member] | Woods and furnitures [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 89,394 78,409
Gross carrying amount [member] | Domestic Loans [Member] | Woods and furnitures [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (1,225) (1,295)
Gross carrying amount [member] | Domestic Loans [Member] | Cellulose, Paper and printing [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 15,882 16,931
Gross carrying amount [member] | Domestic Loans [Member] | Cellulose, Paper and printing [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (365) (591)
Gross carrying amount [member] | Domestic Loans [Member] | Chemicals and petroleum products [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 321,820 298,883
Gross carrying amount [member] | Domestic Loans [Member] | Chemicals and petroleum products [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (2,389) (2,046)
Gross carrying amount [member] | Domestic Loans [Member] | Metal, non-metal, machine or others [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 482,281 551,922
Gross carrying amount [member] | Domestic Loans [Member] | Metal, non-metal, machine or others [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (5,541) (7,367)
Gross carrying amount [member] | Domestic Loans [Member] | Electricity, gas and water [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 242,052 438,147
Gross carrying amount [member] | Domestic Loans [Member] | Electricity, gas and water [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (1,448) (2,342)
Gross carrying amount [member] | Domestic Loans [Member] | Residential construction [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 195,883 265,086
Gross carrying amount [member] | Domestic Loans [Member] | Residential construction [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (6,461) (9,699)
Gross carrying amount [member] | Domestic Loans [Member] | Non-residential construction (office, civil engineering) [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 482,763 409,154
Gross carrying amount [member] | Domestic Loans [Member] | Non-residential construction (office, civil engineering) [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (10,126) (11,060)
Gross carrying amount [member] | Domestic Loans [Member] | Wholesale [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 1,581,915 1,798,723
Gross carrying amount [member] | Domestic Loans [Member] | Wholesale [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (31,119) (34,250)
Gross carrying amount [member] | Domestic Loans [Member] | Retail, restaurants and hotels [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 1,044,935 1,016,553
Gross carrying amount [member] | Domestic Loans [Member] | Retail, restaurants and hotels [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (35,983) (34,404)
Gross carrying amount [member] | Domestic Loans [Member] | Transport and storage [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 1,036,903 1,105,436
Gross carrying amount [member] | Domestic Loans [Member] | Transport and storage [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (14,832) (16,599)
Gross carrying amount [member] | Domestic Loans [Member] | Communications [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 214,386 102,522
Gross carrying amount [member] | Domestic Loans [Member] | Communications [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (2,746) (2,121)
Gross carrying amount [member] | Domestic Loans [Member] | Financial services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 2,995,023 3,219,991
Gross carrying amount [member] | Domestic Loans [Member] | Financial services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (8,090) (9,217)
Gross carrying amount [member] | Domestic Loans [Member] | Business services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 1,973,354 1,976,971
Gross carrying amount [member] | Domestic Loans [Member] | Business services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (39,158) (38,908)
Gross carrying amount [member] | Domestic Loans [Member] | Real estate services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 3,349,165 3,361,066
Gross carrying amount [member] | Domestic Loans [Member] | Real estate services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (15,786) (15,986)
Gross carrying amount [member] | Domestic Loans [Member] | Student loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 52,511 56,924
Gross carrying amount [member] | Domestic Loans [Member] | Student loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (2,462) (2,744)
Gross carrying amount [member] | Domestic Loans [Member] | Government administration, defence and police force [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 16,895 21,438
Gross carrying amount [member] | Domestic Loans [Member] | Government administration, defence and police force [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (228) (269)
Gross carrying amount [member] | Domestic Loans [Member] | Social services and other community services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 900,847 900,822
Gross carrying amount [member] | Domestic Loans [Member] | Social services and other community services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (13,430) (13,044)
Gross carrying amount [member] | Domestic Loans [Member] | Personal services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 1,878,889 1,862,637
Gross carrying amount [member] | Domestic Loans [Member] | Personal services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (30,861) (28,061)
Gross carrying amount [member] | Domestic Loans [Member] | Residential mortgage loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 13,233,327 12,310,768
Gross carrying amount [member] | Domestic Loans [Member] | Residential mortgage loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (35,632) (33,502)
Gross carrying amount [member] | Domestic Loans [Member] | Consumer loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 5,554,989 5,310,462
Gross carrying amount [member] | Domestic Loans [Member] | Consumer loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (403,234) (417,044)
Gross carrying amount [member] | Foreign Loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Agriculture and livestock [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Agriculture and livestock [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Fruit [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Fruit [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Forestry [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Forestry [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Fishing [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Fishing [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Mining [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Mining [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Oil and natural gas [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Oil and natural gas [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Foods, beverages and tobacco [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Foods, beverages and tobacco [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Textiles, leather goods and footwear [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Textiles, leather goods and footwear [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Woods and furnitures [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Woods and furnitures [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Cellulose, Paper and printing [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Cellulose, Paper and printing [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Chemicals and petroleum products [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Chemicals and petroleum products [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Metal, non-metal, machine or others [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Metal, non-metal, machine or others [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Electricity, gas and water [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 104,988 1,326
Gross carrying amount [member] | Foreign Loans [Member] | Electricity, gas and water [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (27) (19)
Gross carrying amount [member] | Foreign Loans [Member] | Residential construction [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Residential construction [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Non-residential construction (office, civil engineering) [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Non-residential construction (office, civil engineering) [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Wholesale [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Wholesale [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Retail, restaurants and hotels [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Retail, restaurants and hotels [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Transport and storage [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Transport and storage [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Communications [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Communications [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Financial services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Financial services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Business services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Business services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Real estate services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers 14,882 19,931
Gross carrying amount [member] | Foreign Loans [Member] | Real estate services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers (114) (273)
Gross carrying amount [member] | Foreign Loans [Member] | Student loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Student loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Government administration, defence and police force [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Government administration, defence and police force [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Social services and other community services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Social services and other community services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Personal services [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Personal services [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Residential mortgage loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Residential mortgage loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Consumer loans [Member] | Credit and Contingent Loans Exposure [Member]    
Commercial loans    
Loans to customers
Gross carrying amount [member] | Foreign Loans [Member] | Consumer loans [Member] | Allowances Established [Member]    
Commercial loans    
Loans to customers