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Intangible Assets - Accumulated Amortization (Details) - CLP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Intangible assets and goodwill at beginning of period | $ 85,471 |  |
Amortization for the year | (12,875) | $ (10,496) | $ (11,360)
Intangible assets and goodwill at end of period | 91,717 | 85,471 |
Accumulated Amortization |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Intangible assets and goodwill at beginning of period | (132,460) | (122,988) |
Amortization for the year | (12,875) | (10,496) |
Disposals | 316 | 1,024 |
Reclassification | 262 |  |
Intangible assets and goodwill at end of period | (144,757) | (132,460) | (122,988)
Accumulated Amortization | Software or computer programs |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Intangible assets and goodwill at beginning of period | (92,907) | (83,435) |
Amortization for the year | (12,875) | (10,496) |
Disposals | 316 | 1,024 |
Reclassification | 262 |  |
Intangible assets and goodwill at end of period | (105,204) | (92,907) | (83,435)
Accumulated Amortization | Goodwill |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Intangible assets and goodwill at beginning of period |  |  |
Amortization for the year |  |  |
Disposals |  |  |
Reclassification |  |  |
Intangible assets and goodwill at end of period |  |  |
Accumulated Amortization | Intangible assets arising from business combinations |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Intangible assets and goodwill at beginning of period | (39,553) | (39,553) |
Amortization for the year |  |  |
Disposals |  |  |
Reclassification |  |  |
Intangible assets and goodwill at end of period | $ (39,553) | $ (39,553) | $ (39,553)

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