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VARIABLE INTEREST ENTITIES (Tables) | 12 Months Ended
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Dec. 31, 2018
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of Assets and Liabilities of Consolidated VIEs | The following table includes assets to be used to settle liabilities of our consolidated VIEs and liabilities of our consolidated VIEs for which creditors do not have recourse to our general credit as the primary beneficiary. These assets and liabilities are included in the Consolidated Statements of Financial Position.
December 31, | 2018 |  | 2017 |
(millions of Canadian dollars) |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 506 |  | 368 |
Restricted cash | 27 |  | — |
Accounts receivable and other | 2,073 |  | 2,132 |
Accounts receivable from affiliates | 5 |  | 3 |
Inventory | 244 |  | 220 |
| 2,855 |  | 2,723 |
Property, plant and equipment, net | 72,737 |  | 68,685 |
Long-term investments | 6,481 |  | 6,258 |
Restricted long-term investments | 244 |  | 206 |
Deferred amounts and other assets | 3,156 |  | 2,921 |
Intangible assets, net | 317 |  | 296 |
Goodwill | 29 |  | 29 |
Deferred income taxes | 131 |  | 145 |
| 85,950 |  | 81,263 |
Liabilities |  |  |  |
Short-term borrowings | 275 |  | 485 |
Accounts payable and other | 2,925 |  | 2,859 |
Accounts payable to affiliates | 4 |  | 131 |
Interest payable | 303 |  | 312 |
Environmental liabilities | 22 |  | 35 |
Current portion of long-term debt | 1,034 |  | 2,129 |
| 4,563 |  | 5,951 |
Long-term debt | 29,577 |  | 31,469 |
Other long-term liabilities | 5,074 |  | 4,301 |
Deferred income taxes | 6,911 |  | 3,010 |
| 46,125 |  | 44,731 |
Net assets before noncontrolling interests | 39,825 |  | 36,532 |
Schedule of the Carrying Amount of Interest in VIEs | The carrying amount of our interest in VIEs that are unconsolidated and our estimated maximum exposure to loss as at December 31, 2018 and 2017 is presented below.
| Carrying Amount of Investment |  | Enbridge’s Maximum Exposure to |
December 31, 2018 | in VIE |  | Loss |
(millions of Canadian dollars) |  |  |  |
Aux Sable Liquid Products L.P.1 | 311 |  | 375 |
Eolien Maritime France SAS 2 | 68 |  | 784 |
Enbridge Renewable Infrastructure Investments S.a.r.l.3, 9 | 127 |  | 3,250 |
Illinois Extension Pipeline Company, L.L.C.4 | 724 |  | 724 |
Nexus Gas Transmission, LLC 5 | 1,757 |  | 2,668 |
PennEast Pipeline Company, LLC 6 | 97 |  | 385 |
Rampion Offshore Wind Limited 7 | 638 |  | 648 |
Vector Pipeline L.P.8 | 198 |  | 301 |
Other 4 | 27 |  | 27 |
| 3,947 |  | 9,162 |
| Carrying Amount of Investment |  | Enbridge’s Maximum Exposure to |
December 31, 2017 | in VIE |  | Loss |
(millions of Canadian dollars) |  |  |  |
Aux Sable Liquid Products L.P. | 300 |  | 361 |
Eolien Maritime France SAS | 69 |  | 754 |
Hohe See Offshore Wind Project 9 | 763 |  | 2,484 |
Illinois Extension Pipeline Company, L.L.C. | 686 |  | 686 |
Nexus Gas Transmission, LLC | 834 |  | 1,678 |
PennEast Pipeline Company, LLC | 69 |  | 345 |
Rampion Offshore Wind Limited | 555 |  | 679 |
Sabal Trail Transmissions, LLC | 2,355 |  | 2,529 |
Vector Pipeline L.P. | 169 |  | 278 |
Other | 21 |  | 21 |
| 5,821 |  | 9,815 |
1 | At December 31, 2018, the maximum exposure to loss includes a guarantee by us for our respective share of the VIE’s borrowing on a bank credit facility.
2 | At December 31, 2018, the maximum exposure to loss includes the portion of our parental guarantee that has been committed in project construction contracts in which we would be liable for in the event of default by the VIE and an outstanding affiliate loan receivable for $202 million held by us.
3 | At December 31, 2018, the maximum exposure to loss includes the portion of our parental guarantee that has been committed in project construction contracts in which we would be liable for in the event of default by the VIE.
4 | At December 31, 2018, the maximum exposure to loss is limited to our equity investment as these companies are in operation and self-sustaining.
5 | At December 31, 2018, the maximum exposure to loss includes the remaining expected contributions to the joint venture and parental guarantees for our portion of capacity lease agreements.
6 | At December 31, 2018 the maximum exposure to loss includes the remaining expected contributions to the joint venture.
7 | At December 31, 2018, the maximum exposure to loss includes the portion of our parental guarantee that has been committed in project contracts in which we would be liable for in the event of default by the VIE.
8 | At December 31, 2018 the maximum exposure to loss includes the carrying value of an outstanding affiliate loan receivable for $102 million held by us.
9 | As at December 31, 2018, the carrying amount of investment and maximum exposure to loss related to Hohe See Offshore Wind Project are included in the amounts shown for ERII.

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- Definition Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=108788376&loc=SL6759159-111685 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5747-111685 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=108788376&loc=SL6228884-111685 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5710-111685 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5728-111685 + Details
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