Condensed Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues
Earned premiums	$ 1,027	$ 931
Investment income, net of expenses	135	128
Realized investment gains, net	22	41
Fee revenues	3	1
Other revenues	2	2
Total revenues	1,189	1,103
Benefits and Expenses
Insurance losses and policyholder benefits	732	568
Underwriting, acquisition and insurance expenses	320	300
Interest expense	14	13
Other operating expenses	4	5
Total benefits and expenses	1,070	886
Income Before Income Taxes	119	217
Provision for Income Taxes
Current	20	54
Deferred	8	9
Total provision for income taxes	28	63
Net Income	$ 91	$ 154
Per Common Share
Net income-basic (in USD per share)	$ 0.56	$ 0.95
Net income-diluted (in USD per share)	$ 0.55	$ 0.94