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PROPERTY, PLANT AND EQUIPMENT | 12 Months Ended
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Dec. 31, 2020
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT AND EQUIPMENT | PROPERTY, PLANT AND EQUIPMENT
| Weighted Average |  |
December 31, | Depreciation Rate | 2020 | 2019
(millions of Canadian dollars) |  |  |
Pipelines | 2.7 | % | 57,391 |  | 56,330 |
Facilities and equipment | 2.8 | % | 30,057 |  | 29,287 |
Land and right-of-way 1 | 2.1 | % | 2,924 |  | 2,947 |
Gas mains, services and other | 2.7 | % | 12,476 |  | 12,194 |
Storage | 2.4 | % | 2,872 |  | 2,748 |
Wind turbines, solar panels and other | 4.1 | % | 4,877 |  | 4,914 |
Other | 8.1 | % | 1,595 |  | 1,486 |
Under construction | — | % | 5,762 |  | 4,057 |
Total property, plant and equipment |  | 117,954 |  | 113,963 |
Total accumulated depreciation |  | (23,383) |  | (20,240) |
Property, plant and equipment, net |  | 94,571 |  | 93,723 |
1 The measurement of weighted average depreciation rate excludes non-depreciable assets. Depreciation expense for the years ended December 31, 2020, 2019 and 2018 was $3.4 billion, $3.0 billion and $2.9 billion, respectively. IMPAIRMENT Access Northeast Project In 2019, we announced that we terminated the agreements with Eversource Energy and National Grid USA Service Company, Inc. related to the Access Northeast project. As a result, we recognized an impairment loss of $105 million for the year ended December 31, 2019, which is included in Impairment of long-lived assets in the Consolidated Statements of Earnings. Access Northeast is part of our Gas Transmission and Midstream segment. Impairment charges were based on the amount by which the carrying values of the assets exceeded fair value, determined using expected discounted future cash flows.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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