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LONG-TERM INVESTMENTS (Details) £ in Millions, shares in Millions, CAD in Millions | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 30, 2015 GBP (£) | Nov. 30, 2015 GBP (£) item | Nov. 30, 2015 GBP (£) mi | Nov. 30, 2015 GBP (£) km | Nov. 30, 2015 GBP (£) MW | Nov. 30, 2014 CAD | Dec. 31, 2015 CAD | Dec. 31, 2014 CAD shares | Dec. 31, 2013 CAD shares | Dec. 31, 2015 GBP (£) | Dec. 31, 2015 CAD | Nov. 30, 2015 CAD | Nov. 04, 2015 | Jul. 01, 2014
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term investments |  |  |  |  |  |  |  | CAD 5,408 |  |  | CAD 7,008 |  |  |
Goodwill |  |  |  |  |  |  |  | 742 |  |  | 885 |  |  |
Amortizable assets |  |  |  |  |  |  |  | 494 |  |  | 568 |  |  |
Dividends received |  |  |  |  |  |  | CAD 719 | 564 | CAD 685 |  |  |  |  |
Income statement of unconsolidated equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  | 1,557 | 1,790 | 1,212 |  |  |  |  |
Commodity costs |  |  |  |  |  |  | (369) | (661) | (371) |  |  |  |  |
Operating and administrative expense |  |  |  |  |  |  | (376) | (444) | (266) |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  | (274) | (232) | (175) |  |  |  |  |
Other income/(expense) |  |  |  |  |  |  | 4 | (1) | 4 |  |  |  |  |
Interest expense |  |  |  |  |  |  | (67) | (84) | (74) |  |  |  |  |
Earnings before income taxes |  |  |  |  |  |  | 475 | 368 | CAD 330 |  |  |  |  |
Balance sheet of unconsolidated equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  | 472 |  |  | 389 |  |  |
Property, plant and equipment, net |  |  |  |  |  |  |  | 5,214 |  |  | 6,602 |  |  |
Deferred amounts and other assets |  |  |  |  |  |  |  | 34 |  |  | 40 |  |  |
Intangible assets, net |  |  |  |  |  |  |  | 77 |  |  | 64 |  |  |
Goodwill |  |  |  |  |  |  |  | 742 |  |  | 885 |  |  |
Current liabilities |  |  |  |  |  |  |  | (712) |  |  | (500) |  |  |
Long-term debt |  |  |  |  |  |  |  | (811) |  |  | (854) |  |  |
Other long-term liabilities |  |  |  |  |  |  |  | (85) |  |  | (167) |  |  |
Net assets |  |  |  |  |  |  |  | 4,931 |  |  | CAD 6,459 |  |  |
Gas Pipelines, Processing and Energy Services |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term assets reclassified |  |  |  |  |  | CAD (203) |  |  |  |  |  |  |  |
Sponsored Investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long term assets reclassified |  |  |  |  |  | CAD 203 |  |  |  |  |  |  |  |
Preference shares | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative dividends based on average yield of Government of Canada bonds, spread over reference rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.30% | 4.30% |  |  |
Preference shares | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative dividends based on average yield of Government of Canada bonds, spread over reference rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.40% | 4.40% |  |  |
Other | Corporate |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Long-Term Investments |  |  |  |  |  |  |  | 102 |  |  | CAD 120 |  |  |
Southern Access Extension Project |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 65.00%
Balance sheet of unconsolidated equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percent sold |  |  |  |  |  |  |  |  |  |  |  |  |  | 35.00%
Southern Access Extension Project | Liquids Pipelines |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 65.00% | 65.00% |  |  |
Equity Investments |  |  |  |  |  |  |  | 263 |  |  | CAD 713 |  |  |
Seaway Pipeline | Liquids Pipelines |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  |
Equity Investments |  |  |  |  |  |  |  | 2,782 |  |  | CAD 3,251 |  |  |
Offshore - various joint ventures | Gas Pipelines, Processing and Energy Services |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Investments |  |  |  |  |  |  |  | 429 |  |  | CAD 479 |  |  |
Offshore - various joint ventures | Gas Pipelines, Processing and Energy Services | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 22.00% | 22.00% |  |  |
Offshore - various joint ventures | Gas Pipelines, Processing and Energy Services | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 74.30% | 74.30% |  |  |
Rampion Offshore Wind Limited |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) | 24.90% | 24.90% | 24.90% | 24.90% | 24.90% |  |  |  |  |  |  | 24.90% | 24.90% |
Balance sheet of unconsolidated equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Wind project capacity | MW |  |  |  |  | 400 |  |  |  |  |  |  |  |  |
Distance off the shore from the UK Sussex coast |  |  | 8 | 13 |  |  |  |  |  |  |  |  |  |
Estimated aggregate amount of investment | £ 370.0 | £ 370.0 | £ 370.0 | £ 370.0 | £ 370.0 |  |  |  |  |  |  | CAD 750 |  |
Amount of investment |  |  |  |  |  |  |  |  |  | £ 96.9 | CAD 201 |  |  |
Power purchase agreement period | 15 years |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of investors | item |  | 3 |  |  |  |  |  |  |  |  |  |  |  |
Rampion Offshore Wind Limited | UK Green Investment Bank plc |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) | 25.00% | 25.00% | 25.00% | 25.00% | 25.00% |  |  |  |  |  |  | 25.00% |  |
Rampion Offshore Wind Limited | E.ON Climate And Renewables UK Limited |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) | 50.10% | 50.10% | 50.10% | 50.10% | 50.10% |  |  |  |  |  |  | 50.10% |  |
Rampion Offshore Wind Limited | Gas Pipelines, Processing and Energy Services |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 24.90% | 24.90% |  |  |
Equity Investments |  |  |  |  |  |  |  |  |  |  | CAD 201 |  |  |
Vector Pipeline | Gas Pipelines, Processing and Energy Services |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 60.00% | 60.00% |  |  |
Equity Investments |  |  |  |  |  |  |  | 141 |  |  | CAD 159 |  |  |
Aux Sable | Gas Pipelines, Processing and Energy Services |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Investments |  |  |  |  |  |  |  | 311 |  |  | CAD 344 |  |  |
Aux Sable | Gas Pipelines, Processing and Energy Services | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 42.70% | 42.70% |  |  |
Aux Sable | Gas Pipelines, Processing and Energy Services | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  |
Alliance Pipeline Canada And US | Sponsored Investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  |
Equity Investments |  |  |  |  |  |  |  | 374 |  |  | CAD 436 |  |  |
Texas Express Pipeline | Sponsored Investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 35.00% | 35.00% |  |  |
Equity Investments |  |  |  |  |  |  |  | 442 |  |  | CAD 515 |  |  |
Enbridge Rail (Philadelphia) L.L.C. | Corporate |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 75.00% | 75.00% |  |  |
Equity Investments |  |  |  |  |  |  |  |  |  |  | CAD 142 |  |  |
Enbridge Insurance (Barbados Oil) Limited | Corporate |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Long-Term Investments |  |  |  |  |  |  |  | 23 |  |  | 35 |  |  |
Enbridge (U.S.) Inc. | Corporate |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Long-Term Investments |  |  |  |  |  |  |  | 29 |  |  | 35 |  |  |
Other Equity Investments | Liquids Pipelines |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Investments |  |  |  |  |  |  |  | 65 |  |  | CAD 95 |  |  |
Other Equity Investments | Liquids Pipelines | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 30.00% | 30.00% |  |  |
Other Equity Investments | Liquids Pipelines | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 75.00% | 75.00% |  |  |
Other Equity Investments | Gas Pipelines, Processing and Energy Services |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Investments |  |  |  |  |  |  |  | 12 |  |  | CAD 13 |  |  |
Other Equity Investments | Gas Pipelines, Processing and Energy Services | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 33.30% | 33.30% |  |  |
Other Equity Investments | Gas Pipelines, Processing and Energy Services | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 70.00% | 70.00% |  |  |
Other Equity Investments | Sponsored Investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  |
Equity Investments |  |  |  |  |  |  |  | 67 |  |  | CAD 54 |  |  |
Other Equity Investments | Corporate |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Investments |  |  |  |  |  |  |  | CAD 45 |  |  | CAD 57 |  |  |
Other Equity Investments | Corporate | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 19.00% | 19.00% |  |  |
Other Equity Investments | Corporate | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 49.99% | 49.99% |  |  |
Noverco | Common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  | 38.90% |  | 38.90% | 38.90% |  |  |
Balance sheet of unconsolidated equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  | 3.60% | 3.90% | 3.60% | 3.60% |  |  |
Number of shares sold through secondary offering | shares |  |  |  |  |  |  |  | 1.3 | 15.0 |  |  |  |  |
Indirect pro-rata interest of the entity in the shares of the entity (as a percent) |  |  |  |  |  |  |  | 1.40% | 1.50% | 1.40% | 1.40% |  |  |
Amount reduced from equity investment and shareholder's equity by the reciprocal shareholding |  |  |  |  |  |  | CAD 83 | CAD 83 | CAD 86 |  |  |  |  |
Noverco | Common shares | Corporate |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership Interest (as a percent) |  |  |  |  |  |  |  |  |  | 38.90% | 38.90% |  |  |
Noverco | Preference shares |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance sheet of unconsolidated equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative dividends per share calculation, maturity period of Government of Canada bond |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |
Noverco | Preference shares | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative dividends based on average yield of Government of Canada bonds, spread over reference rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.30% | 4.30% |  |  |
Noverco | Preference shares | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative dividends based on average yield of Government of Canada bonds, spread over reference rate (as a percent) |  |  |  |  |  |  |  |  |  | 4.40% | 4.40% |  |  |
Noverco | Preference shares | Corporate |  |  |  |  |  |  |  |  |  |  |  |  |  |
LONG TERM INVESTMENTS |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Long-Term Investments |  |  |  |  |  |  |  | CAD 323 |  |  | CAD 359 |  |  |

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