Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statements of Comprehensive Income (Loss)
Net income (loss)	$ 64	$ 120	$ 133	$ 376
Unrealized gains (losses) on available-for-sale securities: [Abstract]
Unrealized gains (losses) arising during the period	(129)	79	(86)	184
Provision (benefit) for income taxes	(47)	26	(30)	64
Total	(82)	53	(56)	120
Reclassification adjustments for (gains) losses included in net income (loss)	(3)	13	4	15
Provision (benefit) for income taxes	(1)	5	2	6
Total	(2)	8	2	9
Available-for-sale securities with other-than-temporary impairments: [Abstract]
Other-than-temporary impairments and unrealized gains (losses) arising during the period	10	(4)	(4)	(1)
Provision (benefit) for income taxes	4	(1)	(1)	(1)
Total	6	(3)	(3)	0
Reclassification adjustments for (gains) losses included in net income (loss)	0	7	0	7
Provision (benefit) for income taxes	0	2	0	2
Total	0	5	0	5
Foreign currency translation: [Abstract]
Foreign currency translation gains (losses)	30	9	(1)	7
Provision (benefit) for income taxes	10	3	(1)	3
Total	20	6	0	4
Reclassification adjustments for (gains) losses included in net income (loss)	0	0	0	4
Total other comprehensive income (loss)	(58)	69	(57)	142
Comprehensive income (loss)	$ 6	$ 189	$ 76	$ 518

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.