Property, Plant and Equipment

6 Months Ended

Jun. 30, 2019

Property, Plant and Equipment [Abstract]

Property, plant and equipment consist of the following as of the dates indicated:


	Depreciable Life	June 30, 2019		December 31, 2018
Land	—	$	12	$	11
Building and improvements	10 - 40 years	40		39
Pipeline and equipment ⁽¹⁾	10 - 30 years	1,202		1,162
Other	5 - 25 years	18		18
		1,272		1,230
Accumulated depreciation and amortization ⁽²⁾		(591)		(567)
		681		663
Construction in progress		57		79
Property, plant and equipment, net		$	738	$	742

⁽¹⁾As of June 30, 2019 and December 31, 2018, includes cost of $368 million and $366 million, respectively, related to assets under operating lease (as lessor). As of both June 30, 2019 and December 31, 2018, includes cost of $23 million related to right-of-use (“ROU”) assets under finance lease (as lessee).

⁽²⁾ As of June 30, 2019 and December 31, 2018, includes accumulated depreciation of $128 million and $121 million, respectively, related to assets under operating lease (as lessor). As of both June 30, 2019 and December 31, 2018, includes accumulated amortization of $5 million, related to ROU assets under finance lease (as lessee).

Depreciation and amortization expense on property, plant and equipment for the three and six months ended June 30, 2019 was $12 million and $24 million, respectively, and for the three and six months ended June 30, 2018 was $12 million and $23 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 (as lessor) and finance leases (as lessee).