Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenue
Fee Income	$ 0	$ (1)	$ 0	$ 0
Net investment income	0	5	0	16
Net realized capital losses	0	0	0	(5)
Other revenues	0	0	0	47
Total revenues	0	4	0	58
Benefits, losses and expenses
Insurance operating costs and other expenses	2	5	5	51
Total benefits, losses and expenses	2	5	5	51
Income (loss) before income taxes	(2)	(1)	(5)	7
Income tax expense (benefit)	(1)	0	(2)	2
Income (loss) from operations of discontinued operations, net of tax	(1)	(1)	(3)	5
Net realized capital gain (loss) on disposal, net of tax	(1)	4	(1)	80
Income (loss) from discontinued operations, net of tax	$ (2)	$ 3	$ (4)	$ 85