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Contingencies and Commitments - Financial Guarantees (Details) - CLP ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Contingencies and Commitments |  |
Performance bonds | $ 2,220,828 | $ 2,150,307
Foreign office guarantees and standby letters of credit | 285,035 | 279,362
Total | 31,004,741 | 25,911,544
Financial guarantees |  |
Contingencies and Commitments |  |
Performance bonds | 2,220,828 | 2,150,307
Foreign office guarantees and standby letters of credit | 285,035 | 279,362
Total | 2,505,863 | 2,429,669
Due within 1 year | Financial guarantees |  |
Contingencies and Commitments |  |
Performance bonds | 1,608,314 | 1,583,497
Foreign office guarantees and standby letters of credit | 218,532 | 239,823
Total | 1,826,846 | 1,823,320
Due after 1 years but within 3 years | Financial guarantees |  |
Contingencies and Commitments |  |
Performance bonds | 523,597 | 429,353
Foreign office guarantees and standby letters of credit | 66,006 | 24,387
Total | 589,603 | 453,740
Due after 3 years but within 5 years | Financial guarantees |  |
Contingencies and Commitments |  |
Performance bonds | 80,623 | 108,315
Foreign office guarantees and standby letters of credit | 280 |
Total | 80,903 | 108,315
Due after 5 years | Financial guarantees |  |
Contingencies and Commitments |  |
Performance bonds | 8,294 | 29,142
Foreign office guarantees and standby letters of credit | 217 | 15,152
Total | $ 8,511 | $ 44,294

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