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PROPERTY, PLANT AND EQUIPMENT | 12 Months Ended
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Dec. 31, 2022
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT AND EQUIPMENT | PROPERTY, PLANT AND EQUIPMENT
| Weighted Average |  |
December 31, | Depreciation Rate | 2022 | 2021
(millions of Canadian dollars) |  |  |
Pipelines | 2.9 | % | 66,528 |  | 62,997 |
Facilities and equipment | 3.5 | % | 37,028 |  | 34,331 |
Land and right-of-way 1 | 2.2 | % | 3,637 |  | 3,320 |
Gas mains, services and other | 2.6 | % | 14,491 |  | 13,606 |
Storage | 2.3 | % | 3,477 |  | 3,099 |
Wind turbines, solar panels and other | 4.1 | % | 4,912 |  | 4,912 |
Other | 8.5 | % | 1,611 |  | 1,507 |
Under construction | — | % | 2,316 |  | 2,268 |
Total property, plant and equipment |  | 134,000 |  | 126,040 |
Total accumulated depreciation |  | (29,540) |  | (25,973) |
Property, plant and equipment, net |  | 104,460 |  | 100,067 |
1 The measurement of weighted average depreciation rate excludes non-depreciable assets. Depreciation expense for the years ended December 31, 2022, 2021 and 2020 was $3.8 billion, $3.5 billion and $3.4 billion, respectively. IMPAIRMENT Magic Valley Wind Farm Magic Valley Wind Farm (Magic Valley) has commercial challenges caused by electricity transmission congestion and a negative price differential arising from higher transmission costs resulting in a lower electricity sale price. As a result, we have recognized an impairment loss of $227 million to our investment in Magic Valley, which is included in Impairment of long-lived assets in the Consolidated Statements of Earnings and is part of our Renewable Power Generation segment. Bakken Pipeline System The Bakken Pipeline System currently has long-term take-or-pay contracts that are set to expire in 2023. In connection with the upcoming expiration of the contracts, we have recognized an impairment loss of $183 million on the US and Canadian components of the interstate pipeline transportation system within the North Dakota System of our Bakken System, which is included in Impairment of long-lived assets in the Consolidated Statements of Earnings and is part of our Liquids Pipelines segment. Impairment charges were based on the amount by which the carrying value 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 https://asc.fasb.org/extlink&oid=126982197&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI https://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 https://asc.fasb.org/extlink&oid=126982197&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 https://asc.fasb.org/extlink&oid=126982197&loc=d3e99779-112916 + Details
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