Consolidated Statement of Income (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues
Premiums		$ 6,032	$ 5,983	$ 17,851	$ 17,734
Net investment income		614	719	1,838	2,150
Fee income		112	110	334	329
Net realized investment gains	[1]	15	40	35	57
Other revenues		21	34	68	109
Total revenues		6,794	6,886	20,126	20,379
Claims and expenses
Claims and claim adjustment expenses		3,382	3,520	10,360	10,661
Amortization of deferred acquisition costs		987	984	2,913	2,899
General and administrative expenses		1,024	1,031	3,044	2,913
Interest expense		94	93	278	277
Total claims and expenses		5,487	5,628	16,595	16,750
Income before income taxes		1,307	1,258	3,531	3,629
Income tax expense		379	339	958	975
Net income		$ 928	$ 919	$ 2,573	$ 2,654
Net income per share
Basic		$ 3.00	$ 2.72	$ 8.13	$ 7.68
Diluted		$ 2.97	$ 2.69	$ 8.04	$ 7.60
Weighted average number of common shares outstanding
Basic		307.6	335.1	314.3	342.9
Diluted		311.0	338.9	317.7	346.5
Cash dividends declared per common share		$ 0.61	$ 0.55	$ 1.77	$ 1.60

[1] Total other-than-temporary impairment (OTTI) losses were $(14) million and $(8) million for the three months ended September 30, 2015 and 2014, respectively, and $(26) million and $(16) million for the nine months ended September 30, 2015 and 2014, respectively. Of total OTTI, credit losses of $(14) million and $(10) million for the three months ended September 30, 2015 and 2014, respectively, and $(23) million and $(20) million for the nine months ended September 30, 2015 and 2014, respectively, were recognized in net realized investment gains. In addition, unrealized gains (losses) from other changes in total OTTI of $0 million and $2 million for the three months ended September 30, 2015 and 2014, respectively, and $(3) million and $4 million for the nine months ended September 30, 2015 and 2014, respectively, were recognized in other comprehensive income (loss) as part of changes in net unrealized gains on investment securities having credit losses recognized in the consolidated statement of income.