PROPERTY, PLANT AND EQUIPMENT

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]


	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-way1	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.