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PROPERTY, PLANT AND EQUIPMENT (Tables) | 12 Months Ended
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Dec. 31, 2018
Property, Plant and Equipment [Abstract] |
Schedule of Property, Plant and Equipment |
| Weighted Average |  |  |  |  |
December 31, | Depreciation Rate |  | 2018 |  | 2017 |
(millions of Canadian dollars) |  |  |  |  |  |
Pipelines | 2.6 | % | 50,078 |  | 47,720 |
Pumping equipment, buildings, tanks and other | 3.0 | % | 16,935 |  | 16,610 |
Land and right-of-way 1 | 2.7 | % | 2,603 |  | 2,538 |
Gas mains, services and other | 3.2 | % | 17,474 |  | 17,026 |
Compressors, meters and other operating equipment | 1.7 | % | 5,893 |  | 5,774 |
Processing and treating plants | 1.5 | % | 1,634 |  | 1,440 |
Storage | 1.9 | % | 1,713 |  | 1,545 |
Wind turbines, solar panels and other | 4.2 | % | 5,063 |  | 4,804 |
Power transmission | 2.6 | % | 383 |  | 365 |
Vehicles, office furniture, equipment and other buildings and improvements | 5.9 | % | 630 |  | 390 |
Under construction | — |  | 9,778 |  | 7,601 |
Total property, plant and equipment 2 |  |  | 112,184 |  | 105,813 |
Total accumulated depreciation |  | (17,644 | ) | (15,102 | )
Property, plant and equipment, net |  |  | 94,540 |  | 90,711 |
1 The measurement of weighted average depreciation rate excludes non-depreciable assets. 2 Certain assets were reclassified as held for sale as at December 31, 2018 and December 31, 2017 (Note 8).

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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