Property, Plant and Equipment (Notes)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment consists of the following as of December 31, 2019 and 2018:

	December 31,
	2019			2018
Cable distribution systems	$	31,542		$	29,249
Customer premise equipment and installations	17,492			17,241
Vehicles and equipment	1,879			1,724
Buildings and improvements	4,843			4,360
Furniture, fixtures and equipment	6,491			5,627
	62,247			58,201
Less: accumulated depreciation	(27,656		)	(23,075		)
	$	34,591		$	35,126

The Company periodically evaluates the estimated useful lives used to depreciate its assets and the estimated amount of assets that will be abandoned or have minimal use in the future. A significant change in assumptions about the extent or timing of future asset retirements, or in the Company’s use of new technology and upgrade programs, could materially affect future depreciation expense.

Depreciation expense for the years ended December 31, 2019, 2018 and 2017 was $7.8 billion, $7.9 billion, and $7.8 billion, respectively.