Sale of Business (Details) - Run-off long-term care insurance business [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015
Life, accident and health net earned premiums:
Long-term care	$ 20	$ 37
Life operations	2	5
Net investment income	19	37
Realized gains (losses) on securities and other income	0	(2)
Total revenues	41	77
Annuity benefits	2	4
Life, accident and health benefits:
Long-term care	25	46
Life operations	2	5
Annuity and supplemental insurance acquisition expenses	3	6
Other expenses	5	9
Total costs and expenses	37	70
Earnings before income taxes	$ 4	$ 7