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Derivative Instruments and Accounting Hedges - Cash flows of bonds issued abroad, the objects of these hedges and the cash flows of the asset part of the derivative (Details) - Cash flow hedge (Swaps) - CLP ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Cross Currency Swap EUR |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | $ 88,576 | $ 38,229
Cross Currency Swap HKD |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 397,664 | 448,667
Cross Currency Swap PEN |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments |  | 15,614
Cross Currency Swap CHF |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 450,682 | 559,508
Cross Currency Swap USD |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 137,005 | 217,122
Cross Currency Swap JPY |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 165,428 | 105,628
Corporate Bond EUR |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (88,576) | (38,229)
Corporate Bond HKD |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (397,664) | (448,667)
Corporate Bond PEN |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued |  | (15,614)
Corporate Bond CHF |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (450,682) | (559,508)
Obligation USD |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (137,005) | (217,122)
Corporate Bond JPY |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (165,428) | (105,628)
Up to 1 month | Cross Currency Swap USD |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 212 | 531
Up to 1 month | Obligation USD |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (212) | (531)
Between 1 and 3 months | Cross Currency Swap CHF |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 986 | 1,031
Between 1 and 3 months | Cross Currency Swap USD |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 235 |
Between 1 and 3 months | Cross Currency Swap JPY |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 292 | 306
Between 1 and 3 months | Corporate Bond CHF |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (986) | (1,031)
Between 1 and 3 months | Obligation USD |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (235) |
Between 1 and 3 months | Corporate Bond JPY |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (292) | (306)
Between 3 and 12 months | Cross Currency Swap EUR |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 1,246 | 552
Between 3 and 12 months | Cross Currency Swap HKD |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 11,052 | 12,144
Between 3 and 12 months | Cross Currency Swap PEN |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments |  | 15,614
Between 3 and 12 months | Cross Currency Swap CHF |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 161,529 | 87,308
Between 3 and 12 months | Cross Currency Swap USD |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 93,173 | 115,113
Between 3 and 12 months | Cross Currency Swap JPY |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 1,150 | 623
Between 3 and 12 months | Corporate Bond EUR |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (1,246) | (552)
Between 3 and 12 months | Corporate Bond HKD |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (11,052) | (12,144)
Between 3 and 12 months | Corporate Bond PEN |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued |  | (15,614)
Between 3 and 12 months | Corporate Bond CHF |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (161,529) | (87,308)
Between 3 and 12 months | Obligation USD |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (93,173) | (115,113)
Between 3 and 12 months | Corporate Bond JPY |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (1,150) | (623)
Due after 1 years but within 3 years | Cross Currency Swap EUR |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 2,491 | 1,105
Due after 1 years but within 3 years | Cross Currency Swap HKD |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 68,634 | 76,922
Due after 1 years but within 3 years | Cross Currency Swap CHF |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 192,519 | 370,926
Due after 1 years but within 3 years | Cross Currency Swap USD |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 43,385 | 101,478
Due after 1 years but within 3 years | Cross Currency Swap JPY |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 72,098 | 46,415
Due after 1 years but within 3 years | Corporate Bond EUR |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (2,491) | (1,105)
Due after 1 years but within 3 years | Corporate Bond HKD |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (68,634) | (76,922)
Due after 1 years but within 3 years | Corporate Bond CHF |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (192,519) | (370,926)
Due after 1 years but within 3 years | Obligation USD |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (43,385) | (101,478)
Due after 1 years but within 3 years | Corporate Bond JPY |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (72,098) | (46,415)
Due after 3 years but within 5 years | Cross Currency Swap EUR |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 2,491 | 1,105
Due after 3 years but within 5 years | Cross Currency Swap HKD |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 19,202 | 21,084
Due after 3 years but within 5 years | Cross Currency Swap CHF |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 474 | 495
Due after 3 years but within 5 years | Cross Currency Swap JPY |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 28,886 | 29,418
Due after 3 years but within 5 years | Corporate Bond EUR |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (2,491) | (1,105)
Due after 3 years but within 5 years | Corporate Bond HKD |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (19,202) | (21,084)
Due after 3 years but within 5 years | Corporate Bond CHF |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (474) | (495)
Due after 3 years but within 5 years | Corporate Bond JPY |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (28,886) | (29,418)
Due after 5 years | Cross Currency Swap EUR |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 82,348 | 35,467
Due after 5 years | Cross Currency Swap HKD |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 298,776 | 338,517
Due after 5 years | Cross Currency Swap CHF |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 95,174 | 99,748
Due after 5 years | Cross Currency Swap JPY |  |
Cash flows of bonds issued |  |
Cash inflows from hedge instruments | 63,002 | 28,866
Due after 5 years | Corporate Bond EUR |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (82,348) | (35,467)
Due after 5 years | Corporate Bond HKD |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (298,776) | (338,517)
Due after 5 years | Corporate Bond CHF |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | (95,174) | (99,748)
Due after 5 years | Corporate Bond JPY |  |
Cash flows of bonds issued |  |
Cash outflow of borrowings and bonds issued | $ (63,002) | $ (28,866)

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