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DEBT (Details) ¥ in Millions, CAD in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2016 JPY (¥)	Jun. 30, 2016 USD ($)	Jun. 30, 2016 CAD	Dec. 31, 2015 CAD
CREDIT FACILITIES
Weighted average standby fee on unused portion (as a percent)	0.20%
Long-term debt			CAD 34,298	CAD 39,391
Committed credit facilities
CREDIT FACILITIES
Total Facilities			22,316	21,720
Draws			11,353
Available			10,963
Committed credit facilities | Enbridge Inc.
CREDIT FACILITIES
Total Facilities			8,130	6,988
Draws			5,153
Available			2,977
Committed credit facilities | Enbridge (U.S.) Inc.
CREDIT FACILITIES
Total Facilities			4,202	4,470
Draws			643
Available			3,559
Committed credit facilities | Enbridge Energy Partners, L.P.
CREDIT FACILITIES
Total Facilities			3,382	3,598
Draws			2,659
Available			723
Committed credit facilities | Enbridge Gas Distribution Inc.
CREDIT FACILITIES
Total Facilities			1,017	1,010
Draws			548
Available			469
Committed credit facilities | Enbridge Income Fund
CREDIT FACILITIES
Total Facilities			1,500	1,500
Draws			411
Available			1,089
Committed credit facilities | Enbridge Pipelines (Southern Lights) L.L.C.
CREDIT FACILITIES
Total Facilities			26	28
Available			26
Committed credit facilities | Enbridge Pipelines Inc
CREDIT FACILITIES
Total Facilities			3,000	3,000
Draws			1,321
Available			1,679
Committed credit facilities | Enbridge Southern Lights LP
CREDIT FACILITIES
Total Facilities			5	5
Available			5
Committed credit facilities | Midcoast Energy Partners, L.P.
CREDIT FACILITIES
Total Facilities			1,054	1,121
Draws			618
Available			436
Uncommitted demand credit facilities
CREDIT FACILITIES
Total Facilities			328	349
Available			81	185
Chinese Banks Extendible Credit Facility
CREDIT FACILITIES
Total Facilities | $		$ 650
Maturity period	3 years
Japanese Banks Extendible Credit Facility
CREDIT FACILITIES
Total Facilities	¥ 32,622	$ 318
Maturity period	3 years
Commercial paper and credit facility draws
CREDIT FACILITIES
Long-term debt			CAD 9,127	CAD 11,344

X

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The maturity period of debt agreement.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03.16)
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-Number 210
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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

+ References

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