Represents the percentage points added to the variable reference rate for the calculation of cumulative dividends.

No definition available.

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Represents the number of shares sold through secondary offering, during the period.

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No definition available.

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Represents the ownership interest of equity investee in the entity.

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No definition available.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting that was sold.

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The amount of the commodity costs reported by an equity method investment of the entity.

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No definition available.

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The amount of deferred costs and other assets reported by an equity method investment of the entity.

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No definition available.

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The amount of the depreciation and amortization costs reported by an equity method investment of the entity.

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No definition available.

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The amount of the earnings before income taxes reported by an equity method investment of the entity.

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No definition available.

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The amount of intangible assets net reported by an equity method investment of the entity.

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No definition available.

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The amount of goodwill reported by an equity method investment of the entity.

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No definition available.

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The cost of borrowed funds accounted for as interest that was charged against earnings during the period reported by an equity method investment of the entity.

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No definition available.

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The amount of long-term debt reported by an equity method investment of the entity.

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No definition available.

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Represents the amount of net assets (i.e. assets, net of liabilities) reported by an equity method investment of the entity.

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No definition available.

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The amount of the operating and administrative costs reported by an equity method investment of the entity.

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No definition available.

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The amount of the other income (expense) reported by an equity method investment of the entity.

+ References

No definition available.

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The amount of other long-term liabilities reported by an equity method investment of the entity.

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No definition available.

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The amount of property plant and equipment net reported by an equity method investment of the entity.

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No definition available.

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This element represents the unamortized excess of purchase price over underlying net book value of investee's assets at the purchase date recorded as unamortized assets.

+ References

No definition available.

+ Details

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This element represents the unamortized excess of purchase price over underlying net book value of the investee's assets at the purchase date recorded as goodwill.

+ References

No definition available.

+ Details

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Represents the indirect pro-rata interest of the entity in its own shares.

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No definition available.

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- Definition

Represents the maturity period of the Government of Canada bond.

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No definition available.

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Represents the reduction in equity investment and shareholder's equity due to reciprocal investment.

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No definition available.

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Represents the amount of long term assets transferred among the segments reclassified for presentation purposes in the financial statements.

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No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 3

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

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The amount of current assets reported by an equity method investment of the entity.

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The amount of current liabilities reported by an equity method investment of the entity.

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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No definition available.

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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Other long-term investments not otherwise specified in the taxonomy, not including investments in marketable securities.

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Cash dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations that are returns of capital. Excludes dividends or distributions from equity method investments classified as operating activities.

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LONG-TERM INVESTMENTS (Details) (CAD) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended			1 Months Ended
	Nov. 30, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2013	May 31, 2012	Jul. 01, 2014
LONG TERM INVESTMENTS
Long term investments		5,408us-gaap_LongTermInvestments	4,212us-gaap_LongTermInvestments
Goodwill		742	680
Amortizable assets		494	517
Gas Pipelines, Processing and Energy Services
LONG TERM INVESTMENTS
Long term assets reclassified	(203)
Sponsored Investments
LONG TERM INVESTMENTS
Long term assets reclassified	203
Preference shares (Note 20) \| Minimum
LONG TERM INVESTMENTS
Cumulative dividends based on average yield of Government of Canada bonds, spread over reference rate (as a percent)		4.30%
Preference shares (Note 20) \| Maximum
LONG TERM INVESTMENTS
Cumulative dividends based on average yield of Government of Canada bonds, spread over reference rate (as a percent)		4.40%
Other \| Corporate
LONG TERM INVESTMENTS
Other Long-Term Investments		154	102
Joint Ventures
Income statement of unconsolidated equity investments of joint ventures
Revenues		1,790	1,212	956
Commodity costs		(661)	(371)	(236)
Operating and administrative expenses		(360)	(268)	(244)
Depreciation and amortization		(232)	(175)	(159)
Other income/(expense)		(1)	4	4
Interest expense		(84)	(74)	(81)
Earnings before income taxes		452	328	240
Balance sheet of unconsolidated equity investments of joint ventures
Current assets		472	366
Property, plant and equipment, net		5,169	4,050
Deferred amounts and other assets		34	35
Intangible assets, net		77	75
Goodwill		742	680
Current liabilities		(712)	(395)
Long-term debt		(811)	(994)
Other long-term liabilities		(85)	(50)
Net assets		4,886	3,767
Chicap Pipeline joint venture \| Liquids Pipelines
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		43.80%
Equity Investments		33	29
Mustang Pipeline joint venture \| Liquids Pipelines
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		30.00%
Equity Investments		25	23
Seaway Pipeline joint venture \| Liquids Pipelines
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		50.00%
Equity Investments		2,782	2,048
Offshore - various joint ventures \| Gas Pipelines, Processing and Energy Services
LONG TERM INVESTMENTS
Equity Investments		429	401
Offshore - various joint ventures \| Gas Pipelines, Processing and Energy Services \| Minimum
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		22.00%
Offshore - various joint ventures \| Gas Pipelines, Processing and Energy Services \| Maximum
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		74.30%
Vector Pipeline joint venture \| Gas Pipelines, Processing and Energy Services
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		60.00%
Equity Investments		141	125
Alliance Pipeline US joint venture \| Gas Pipelines, Processing and Energy Services
LONG TERM INVESTMENTS
Equity Investments			201
Aux Sable joint venture \| Gas Pipelines, Processing and Energy Services
LONG TERM INVESTMENTS
Equity Investments		311	306
Aux Sable joint venture \| Gas Pipelines, Processing and Energy Services \| Minimum
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		42.70%
Aux Sable joint venture \| Gas Pipelines, Processing and Energy Services \| Maximum
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		50.00%
Other joint ventures \| Liquids Pipelines
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		75.00%
Equity Investments		7
Other joint ventures \| Gas Pipelines, Processing and Energy Services
LONG TERM INVESTMENTS
Equity Investments		12	11
Other joint ventures \| Gas Pipelines, Processing and Energy Services \| Minimum
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		33.30%
Other joint ventures \| Gas Pipelines, Processing and Energy Services \| Maximum
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		70.00%
Other joint ventures \| Sponsored Investments
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		50.00%
Equity Investments		67	62
Alliance Pipeline \| Sponsored Investments
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		50.00%
Equity Investments		374	165
Texas Express Pipeline joint venture \| Sponsored Investments
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		35.00%
Equity Investments		442	396
Noverco \| Common shares (Note 20)
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		38.90%	38.90%	38.90%
Balance sheet of unconsolidated equity investments of joint ventures
Ownership interest (as a percent)		3.60%	3.90%	6.00%
Number of shares sold through secondary offering		1.3	15.0	22.5
Dividend received invested to increase common share investment					248	297
Indirect pro-rata interest of the entity in the shares of the entity (as a percent)		1.40%	1.50%	2.10%
Amount reduced from equity investment and shareholder's equity by the reciprocal shareholding		83	86	126
Noverco \| Common shares (Note 20) \| Corporate
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		38.90%
Noverco \| Preference shares (Note 20)
Balance sheet of unconsolidated equity investments of joint ventures
Cumulative dividends per share calculation, maturity period of Government of Canada bond		10 years
Noverco \| Preference shares (Note 20) \| Minimum
LONG TERM INVESTMENTS
Cumulative dividends based on average yield of Government of Canada bonds, spread over reference rate (as a percent)		4.30%
Noverco \| Preference shares (Note 20) \| Maximum
LONG TERM INVESTMENTS
Cumulative dividends based on average yield of Government of Canada bonds, spread over reference rate (as a percent)		4.40%
Noverco \| Preference shares (Note 20) \| Corporate
LONG TERM INVESTMENTS
Other Long-Term Investments		323	287
Other Equity Investments \| Corporate
LONG TERM INVESTMENTS
Equity Investments		45	56
Other Equity Investments \| Corporate \| Minimum
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		19.30%
Other Equity Investments \| Corporate \| Maximum
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		49.99%
Southern Access Extension Project
LONG TERM INVESTMENTS
Ownership Interest (as a percent)							65.00%
Balance sheet of unconsolidated equity investments of joint ventures
Ownership percent sold							35.00%
Southern Access Extension Project \| Liquids Pipelines
LONG TERM INVESTMENTS
Ownership Interest (as a percent)		65.00%
Equity Investments		263