Property and Equipment

9 Months Ended

Sep. 30, 2016

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment

Property and equipment consists of the following (in millions):

	September 30, 2016			December 31, 2015
Land	$	692		$	596
Buildings	2,687			2,273
Leasehold improvements	474			447
Network equipment	4,734			3,633
Computer software, office equipment and other	351			248
Construction in progress	1,840			622
Total	10,778			7,819
Less: Accumulated depreciation	(2,879		)	(2,132		)
Property and equipment, net	$	7,899		$	5,687

Construction in progress includes costs primarily related to construction of data centers, network equipment infrastructure to support our data centers around the world, and office buildings. No interest was capitalized during the three and nine months ended September 30, 2016 and 2015.