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Transition disclosures - Reconciliation of allowances and provisions on adoption of IFRS 9 (Details) - CLP ($) $ in Millions | Jan. 01, 2018 | Dec. 31, 2017
--- | --- | ---
Adoption of new standards |  |
Loss Allowance under IAS 39 |  | $ (496,085)
Remeasurement Upon Transition to IFRS 9 | $ (74,325) |
Loss Allowance under IFRS 9 | (570,410) |
Provisions under IAS 39 |  | (11,374)
Remeasurement Upon Transition to IFRS 9 | (11,601) |
Provisions under IFRS 9 | (22,975) |
Total Allowances / Provisions under IAS 39 |  | (507,459)
Remeasurement Upon Transition to IFRS 9 | (91,746) |
Total Allowances / Provisions under IFRS 9 | (599,205) |
Financial guarantees |  |
Adoption of new standards |  |
Provisions under IAS 39 |  | (11,205)
Remeasurement Upon Transition to IFRS 9 | 7,273 |
Provisions under IFRS 9 | (3,932) |
Letter of credit for customers |  |
Adoption of new standards |  |
Provisions under IAS 39 |  | (169)
Remeasurement Upon Transition to IFRS 9 | 97 |
Provisions under IFRS 9 | (72) |
Undrawn credit lines |  |
Adoption of new standards |  |
Remeasurement Upon Transition to IFRS 9 | (18,971) |
Provisions under IFRS 9 | (18,971) |
Due from banks |  |
Adoption of new standards |  |
Loss Allowance under IAS 39 |  | (264)
Remeasurement Upon Transition to IFRS 9 | (508) |
Loss Allowance under IFRS 9 | (772) |
Commercial loans |  |
Adoption of new standards |  |
Loss Allowance under IAS 39 |  | (221,229)
Remeasurement Upon Transition to IFRS 9 | (181) |
Loss Allowance under IFRS 9 | (221,410) |
Mortgage loans |  |
Adoption of new standards |  |
Loss Allowance under IAS 39 |  | (32,015)
Remeasurement Upon Transition to IFRS 9 | (1,762) |
Loss Allowance under IFRS 9 | (33,777) |
Consumer loans |  |
Adoption of new standards |  |
Loss Allowance under IAS 39 |  | $ (242,577)
Remeasurement Upon Transition to IFRS 9 | (71,874) |
Loss Allowance under IFRS 9 | (314,451) |
Debt instruments at fair value through OCI |  |
Adoption of new standards |  |
Remeasurement Upon Transition to IFRS 9 | (5,820) |
Allowances under IFRS 9 | $ (5,820) |

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