Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Net income	$ 68		$ 62
Other comprehensive income (loss), net of tax :
Foreign currency translation adjustments	1	[1]	(3)	[1]
Total other comprehensive income (loss), net of tax	1	[1]	(3)	[1]
Comprehensive income	$ 69		$ 59

[1] Unrealized gains (losses) and reclassifications of net gains (losses), including related tax effects, on available for sale securities during the three months ended March 31, 2014 and 2013 were not material.