Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statements of Comprehensive Income (Loss)
Net income (loss)	$ (35)	$ 173	$ 98	$ 549
Unrealized gains (losses) on available-for-sale securities: [Abstract]
Unrealized gains (losses) arising during the period	51	1	(35)	185
Provision (benefit) for income taxes	19	0	(11)	64
Total	32	1	(24)	121
Reclassification adjustments for (gains) losses included in net income (loss)	6	0	10	15
Provision (benefit) for income taxes	1	0	3	6
Total	5	0	7	9
Available-for-sale securities with other-than-temporary impairments: [Abstract]
Other-than-temporary impairments and unrealized gains (losses) arising during the period	(1)	(79)	(5)	(80)
Provision (benefit) for income taxes	(1)	(28)	(2)	(29)
Total	0	(51)	(3)	(51)
Reclassification adjustments for (gains) losses included in net income (loss)	3	0	3	7
Provision (benefit) for income taxes	1	0	1	2
Total	2	0	2	5
Foreign currency translation: [Abstract]
Foreign currency translation gains (losses)	(18)	(30)	(19)	(23)
Provision (benefit) for income taxes	(5)	(10)	(6)	(7)
Total	(13)	(20)	(13)	(16)
Reclassification adjustments for (gains) losses included in net income (loss)	0	0	0	4
Total other comprehensive income (loss)	26	(70)	(31)	72
Comprehensive income (loss)	$ (9)	$ 103	$ 67	$ 621

Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities with other-than-temporary impairments and for unrealized loss realized upon the write-down of available-for-sale securities.

No definition available.