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PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Property, Plant and Equipment [Line Items] |  |
Total property, plant and equipment | $ 126,040 | $ 118,450
Total accumulated depreciation | (25,973) | (23,879)
Property, plant and equipment, net | $ 100,067 | 94,571
Pipelines |  |
Property, Plant and Equipment [Line Items] |  |
Weighted Average Depreciation Rate (percent) | 2.80% |
Total property, plant and equipment | $ 62,997 | 57,459
Facilities and equipment |  |
Property, Plant and Equipment [Line Items] |  |
Weighted Average Depreciation Rate (percent) | 3.10% |
Total property, plant and equipment | $ 34,331 | 30,149
Land and right-of-way |  |
Property, Plant and Equipment [Line Items] |  |
Weighted Average Depreciation Rate (percent) | 2.30% |
Total property, plant and equipment | $ 3,320 | 2,896
Gas mains, services and other |  |
Property, Plant and Equipment [Line Items] |  |
Weighted Average Depreciation Rate (percent) | 2.70% |
Total property, plant and equipment | $ 13,606 | 12,813
Storage |  |
Property, Plant and Equipment [Line Items] |  |
Weighted Average Depreciation Rate (percent) | 2.40% |
Total property, plant and equipment | $ 3,099 | 2,936
Wind turbines, solar panels and other |  |
Property, Plant and Equipment [Line Items] |  |
Weighted Average Depreciation Rate (percent) | 4.00% |
Total property, plant and equipment | $ 4,912 | 4,877
Other |  |
Property, Plant and Equipment [Line Items] |  |
Weighted Average Depreciation Rate (percent) | 8.20% |
Total property, plant and equipment | $ 1,507 | 1,558
Under construction |  |
Property, Plant and Equipment [Line Items] |  |
Weighted Average Depreciation Rate (percent) | 0.00% |
Total property, plant and equipment | $ 2,268 | $ 5,762

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- Definition Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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