Acquisitions and Sale of Businesses (Details 2) - Run-off long-term care insurance business [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Life, accident and health net earned premiums:
Long-term care	$ 19	$ 18	$ 56	$ 56
Life operations	3	3	8	8
Net investment income	19	18	56	57
Realized gains (losses) on securities and other income	(4)	(1)	(6)	1
Total revenues	37	38	114	122
Annuity benefits	2	2	6	6
Life, accident and health benefits:
Long-term care	21	27	67	84
Life operations	3	3	8	9
Annuity and supplemental insurance acquisition expenses	3	3	9	10
Other expenses	4	3	13	10
Total costs and expenses	33	38	103	119
Earnings before income taxes	$ 4	$ 0	$ 11	$ 3