Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues
Net earned premiums	$ 1,806	$ 1,767	$ 5,185	$ 5,196
Net investment income	509	524	1,529	1,461
Net realized investment (losses) gains:
Other-than-temporary impairment losses	(5)	(18)	(9)	(56)
Other net realized investment (losses) gains	(19)	64	71	82
Net realized investment (losses) gains	(24)	46	62	26
Other revenues	107	96	318	293
Total revenues	2,398	2,433	7,094	6,976
Claims, Benefits and Expenses
Insurance claims and policyholders’ benefits	1,480	1,202	4,053	3,949
Amortization of deferred acquisition costs	309	314	926	926
Other operating expenses	381	403	1,091	1,162
Interest	41	39	124	119
Total claims, benefits and expenses	2,211	1,958	6,194	6,156
Income before income tax	187	475	900	820
Income tax expense	(43)	(132)	(224)	(202)
Net income	$ 144	$ 343	$ 676	$ 618
Basic earnings per share (dollars per share)	$ 0.53	$ 1.27	$ 2.49	$ 2.28
Diluted earnings per share (dollars per share)	0.53	1.26	2.48	2.28
Dividends per share (dollars per share)	$ 0.3	$ 0.25	$ 2.8	$ 2.75
Weighted Average Outstanding Common Stock and Common Stock Equivalents
Basic (in shares)	271.2	270.5	271.1	270.4
Diluted (in shares)	272.1	271.2	272.0	271.0