Property and Equipment, net (Tables)

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment, Net

Property and equipment, net consisted of:

	As of December 31,
	2013			2012
Land	$	56		$	58
Buildings and leasehold improvements	549			521
Capitalized software	494			419
Furniture, fixtures and equipment	374			319
Buses and support vehicles	74			64
Projects in process	64			37
	1,611			1,418
Less: Accumulated depreciation and amortization	(997		)	(889		)
Property and equipment, net	$	614		$	529