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Intangible Assets (Details) - Schedule of changes in intangible assets - CLP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Accumulated Amortization    
Net balance $ 105,942 $ 94,111
Goodwill [Member]    
Accumulated Amortization    
Net balance [1] 16,714 16,714
Intangible assets arising from business combinations [Member]    
Accumulated Amortization    
Net balance [2] 16,696 16,696
Software or computer programs [Member]    
Accumulated Amortization    
Net balance 72,532 60,701
Gross Balance [Member]    
Gross Balance    
Balance, at beginning 253,658 236,474
Acquisitions 30,222 18,631
Disposals/write-downs (352) (387)
Reclassification (89) (16)
Impairment [3],[4] (1,018) (1,044)
Balance, at ending 282,421 253,658
Gross Balance [Member] | Goodwill [Member]    
Gross Balance    
Balance, at beginning [1] 16,714 16,714
Acquisitions [1]
Disposals/write-downs [1]
Reclassification [1]
Impairment [1],[3],[4]
Balance, at ending [1] 16,714 16,714
Gross Balance [Member] | Intangible assets arising from business combinations [Member]    
Gross Balance    
Balance, at beginning [2] 56,249 56,249
Acquisitions [2]
Disposals/write-downs [2]
Reclassification [2]
Impairment [2],[3],[4]
Balance, at ending [2] 56,249 56,249
Gross Balance [Member] | Software or computer programs [Member]    
Gross Balance    
Balance, at beginning 180,695 163,511
Acquisitions 30,222 18,631
Disposals/write-downs (352) (387)
Reclassification (89) (16)
Impairment [3],[4] (1,018) (1,044)
Balance, at ending 209,458 180,695
Accumulated Amortization [Member]    
Gross Balance    
Balance, at beginning (159,547) (144,757)
Disposals/write-downs 352 660
Reclassification (2)
Impairment [3],[4] 549 415
Balance, at ending (176,479) (159,547)
Accumulated Amortization    
Amortization for the year [4] (17,831) (15,865)
Accumulated Amortization [Member] | Goodwill [Member]    
Gross Balance    
Balance, at beginning [1]
Disposals/write-downs [1]
Reclassification [1]
Impairment [1],[3],[4]
Balance, at ending [1]
Accumulated Amortization    
Amortization for the year [1],[4]
Accumulated Amortization [Member] | Intangible assets arising from business combinations [Member]    
Gross Balance    
Balance, at beginning [2] (39,553) (39,553)
Disposals/write-downs [2]
Reclassification [2]
Impairment [2],[3],[4]
Balance, at ending [2] (39,553) (39,553)
Accumulated Amortization    
Amortization for the year [2],[4]
Accumulated Amortization [Member] | Software or computer programs [Member]    
Gross Balance    
Balance, at beginning (119,994) (105,204)
Disposals/write-downs 352 660
Reclassification (2)
Impairment [3],[4] 549 415
Balance, at ending (136,926) (119,994)
Accumulated Amortization    
Amortization for the year [4] $ (17,831) $ (15,865)
[1] Goodwill corresponds mainly to business combination with Citibank Chile whose amount is of MCh$12,576 that represents the value of synergies to be generated in the combination process and the acquisition of know-how.
[2] Intangible assets arising from business combinations include assets with indefinite useful lives acquired in the business combination with Citibank Chile.
[3] Does not include write-offs of Intangible assets for $1,178 million as of December 31, 2021.
[4] See Note No. 37 Depreciation, Amortization and Impairment.