Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property and equipment

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

	December 31,
	2013			2012
Network equipment	$	2,351		$	1,912
Land	45			36
Buildings	1,071			594
Leasehold improvements	203			194
Computer software, office equipment and other	95			93
Construction in progress	377			444
Total	4,142			3,273
Less: Accumulated depreciation	(1,260		)	(882		)
Property and equipment, net	$	2,882		$	2,391