CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 226	$ 148	$ 795	$ 986
Other comprehensive income:
Foreign currency translation adjustment	49	(58)	(3)	(18)
Unrealized gains on investments, net of deferred income taxes of $1 million for the three and nine months ended September 30, 2012 and $0 million and $1 million for the three and nine months ended September 30, 2011, respectively	1	0	1	2
Other comprehensive income (loss)	50	(58)	(2)	(16)
Comprehensive Income	276	90	793	970
Deferred income taxes on gross unrealized appreciation (depreciation) on investments	$ 1	$ 0	$ 1	$ 1