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VARIABLE INTEREST ENTITIES - Schedule of the Carrying Amount of Interest in VIEs (Details) - CAD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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Variable Interest Entity, Not Primary Beneficiary |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE | $ 1,896 | $ 3,947
Maximum Exposure to Loss | 6,148 | 8,949
Aux Sable Liquid Products L.P. |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE | 267 | 311
Maximum Exposure to Loss | 331 | 375
Eolien Maritime France SAS |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE | 67 | 68
Maximum Exposure to Loss | 725 | 784
Affiliate loan receivable | 166 | 202
Enbridge Renewable Infrastructure Investments S.a.r.l. (ERII) |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE | 141 | 127
Maximum Exposure to Loss | 2,720 | 3,037
Affiliate loan receivable | 766 | 461
Gray Oak Holdings LLC |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE | 463 |
Maximum Exposure to Loss | 935 |
Illinois Extension Pipeline Company, L.L.C. |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE |  | 724
Maximum Exposure to Loss |  | 724
Nexus Gas Transmission, LLC |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE |  | 1,757
Maximum Exposure to Loss |  | 2,668
PennEast Pipeline Company, LLC |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE | 106 | 97
Maximum Exposure to Loss | 368 | 385
Rampion Offshore Wind Limited |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE | 600 | 638
Maximum Exposure to Loss | 620 | 648
Vector Pipeline L.P. |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE | 195 | 198
Maximum Exposure to Loss | 392 | 301
Affiliate loan receivable | 92 | 102
Credit facility provided | 105 |
Other |  |
VARIABLE INTEREST ENTITY |  |
Carrying Amount of Investment in VIE | 57 | 27
Maximum Exposure to Loss | $ 57 | $ 27

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