Consolidated Statements Of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues
Earned premiums	$ 4,710	$ 4,480	$ 4,243
Investment income, net of expenses	595	572	549
Realized investment gains, net	124	70	133
Fee revenues	15	13	12
Other revenues	5	7	8
Total revenues	5,449	5,142	4,945
Benefits and Expenses
Insurance losses and contract holders' benefits	3,107	2,808	2,856
Underwriting, acquisition and insurance expenses	1,465	1,387	1,301
Interest expense	53	53	53
Other operating expenses	12	13	14
Total benefits and expenses	4,637	4,261	4,224
Income Before Income Taxes	812	881	721
Provision for Income Taxes
Current	183	231	159
Deferred	38	16	37
Total provision for income taxes	221	247	196
Net Income	$ 591	$ 634	$ 525
Per Common Share
Net income—basic (in usd per share)	$ 3.59	$ 3.87	$ 3.21
Net income—diluted (in usd per share)	$ 3.55	$ 3.83	$ 3.18