Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Property and equipment

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

	December 31,
	2015			2014
Land	$	596		$	153
Buildings	2,273			1,420
Leasehold improvements	447			304
Network equipment	3,633			3,020
Computer software, office equipment and other	248			149
Construction in progress	622			738
Total	7,819			5,784
Less: Accumulated depreciation	(2,132		)	(1,817		)
Property and equipment, net	$	5,687		$	3,967