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Property, Plant and Equipment
9 Months Ended
Sep. 30, 2020
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment
Property, plant and equipment consist of the following as of the dates indicated:
 
Depreciable
Life
September 30, 2020December 31, 2019
Land
— $12 $11 
Building and improvements
10 - 40 years
47 40 
Pipeline and equipment (1)
10 - 30 years
1,258 1,228 
Other
5 - 25 years
34 33 
1,351 1,312 
Accumulated depreciation and amortization (2)
(652)(613)
699 699 
Construction in progress
27 
Property, plant and equipment, net
$708 $726 
(1) As of September 30, 2020 and December 31, 2019, includes costs of $372 million and $369 million, respectively, related to assets under operating lease (as lessor). As of both September 30, 2020 and December 31, 2019, includes cost of $23 million, related to right-of-use (“ROU”) assets under finance lease (as lessee).
(2) As of September 30, 2020 and December 31, 2019, includes accumulated depreciation of $143 million and $133 million, respectively, related to assets under operating lease (as lessor). As of September 30, 2020 and December 31, 2019, includes accumulated amortization of $7 million and $6 million, respectively, related to ROU assets under finance lease (as lessee).

Depreciation and amortization expense on property, plant and equipment for the three and nine months ended September 30, 2020 was $13 million and $39 million, respectively, and for the three and nine months ended September 30, 2019 was $12 million and $36 million, respectively, and is included in costs and expenses in the accompanying unaudited consolidated statements of income. Depreciation and amortization expense on property, plant and equipment includes amounts pertaining to assets under operating leases (as lessor) and finance leases (as lessee).

We evaluate long-lived assets for potential impairment indicators whenever events or changes in circumstances indicate that the carrying amount of our assets may not be recoverable. Due to the continuing effects of the COVID-19 pandemic, we evaluated whether an impairment indicator existed as of September 30, 2020. Based on our current forecast and expectations of market conditions, we determined that there was no triggering event that required us to update our impairment evaluation of property, plant and equipment. However, if current volatile market conditions deteriorate further or continue for an extended period of time, we may be required to assess the recoverability of our long-lived assets, which could result in an impairment.