Property and Equipment, Net

3 Months Ended

Mar. 31, 2013

Property and Equipment, Net [Abstract]

Property and Equipment, Net

5. Property and Equipment, Net

Property and equipment, net, consisted of:

	March 31, 2013						December 31, 2012
(in $ millions)	Cost		Accumulated depreciation		Net		Cost		Accumulated depreciation		Net
Capitalized software		633		(408)		225		629		(386)		243
Computer equipment		268		(143)		125		274		(138)		136
Building and leasehold improvements		13		(7)		6		12		(7)		5
Construction in progress		46		—		46		32		—		32
		960		(558)		402		947		(531)		416

The Company recorded depreciation expense of $32 million and $36 million during the three months ended March 31, 2013 and 2012, respectively.

As of March 31, 2013 and December 31, 2012, the Company had net capital lease assets of $89 million and $94 million, respectively, included within computer equipment. During the three months ended March 31, 2013 and 2012, the Company invested $24 million and $15 million, respectively, in property and equipment.

The amount of interest on capital projects capitalized was $1 million for each of the three months ended March 31, 2013 and 2012.