Property and Equipment, Net

12 Months Ended

Dec. 31, 2015

Property and equipment, net was comprised of the following (amounts in millions):



	At December 31,
	2015			2014
Land	$	1		$	1
Buildings	4			4
Leasehold improvements	109			104
Computer equipment	431			347
Office furniture and other equipment	52			45
Total cost of property and equipment	597			501
Less accumulated depreciation	(408		)	(344		)
Property and equipment, net	$	189		$	157

Depreciation expense for the years ended December 31, 2015, 2014, and 2013 was $82 million, $76 million, and $84 million, respectively.

Rental expense was $39 million, $38 million and $35 million for the years ended December 31, 2015, 2014, and 2013, respectively.