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ACQUISITIONS AND DISPOSITIONS - DISPOSITIONS (Details) CAD in Millions, $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2015 USD ($) | Aug. 31, 2015 CAD | May. 31, 2015 CAD | Nov. 30, 2014 USD ($) | Nov. 30, 2014 CAD | Jul. 31, 2014 USD ($) | Jul. 31, 2014 CAD | Mar. 31, 2014 CAD | Dec. 31, 2015 CAD | Dec. 31, 2014 CAD
Acquisitions and Dispositions |  |  |  |  |  |  |  |  |  |
Gain resulted from the cash proceeds and disposition of net liabilities held for sale |  |  |  |  |  |  |  |  |  | CAD 46
Gains on dispositions (Note 6) |  |  |  |  |  |  |  |  | CAD 94 | CAD 38
Frontier Pipeline Company | Disposed of by Sale |  |  |  |  |  |  |  |  |  |
Acquisitions and Dispositions |  |  |  |  |  |  |  |  |  |
Ownership percent sold | 77.80% | 77.80% |  |  |  |  |  |  |  |
Cash proceeds from sale of assets | $ 85 | CAD 112 |  |  |  |  |  |  |  |
Gains on dispositions (Note 6) | $ 53 | CAD 70 |  |  |  |  |  |  |  |
Certain Crude Oil Pipeline System | Disposed of by Sale |  |  |  |  |  |  |  |  |  |
Acquisitions and Dispositions |  |  |  |  |  |  |  |  |  |
Cash proceeds from sale of assets |  |  | CAD 26 |  |  |  |  |  |  |
Gains on dispositions (Note 6) |  |  | CAD 22 |  |  |  |  |  |  |
Non-Core Assets Within Enbridge Offshore Pipelines | Disposed of by sale, not discontinued operations |  |  |  |  |  |  |  |  |  |
Acquisitions and Dispositions |  |  |  |  |  |  |  |  |  |
Cash proceeds from sale of assets |  |  |  | $ 7 | CAD 7 |  |  |  |  |
Gain resulted from the cash proceeds and disposition of net liabilities held for sale |  |  |  | $ 19 | CAD 22 |  |  |  |  |
Southern Access Extension Project | Disposed of by sale, not discontinued operations |  |  |  |  |  |  |  |  |  |
Acquisitions and Dispositions |  |  |  |  |  |  |  |  |  |
Ownership percent sold |  |  |  |  |  | 35.00% | 35.00% |  |  |
Cash proceeds from sale of assets |  |  |  |  |  | $ 68 | CAD 73 |  |  |
Gain resulted from the cash proceeds and disposition of net liabilities held for sale |  |  |  |  |  |  | CAD 0 |  |  |
Alternative And Emerging Technologies Member | Disposed of by sale, not discontinued operations |  |  |  |  |  |  |  |  |  |
Acquisitions and Dispositions |  |  |  |  |  |  |  |  |  |
Cash proceeds from sale of assets |  |  |  |  |  |  |  | CAD 19 |  |
Gain resulted from the cash proceeds and disposition of net liabilities held for sale |  |  |  |  |  |  |  | CAD 16 |  |
Liquids Pipelines | Southern Access Extension Project |  |  |  |  |  |  |  |  |  |
Acquisitions and Dispositions |  |  |  |  |  |  |  |  |  |
Ownership percent sold |  |  |  |  |  | 35.00% | 35.00% |  |  |

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