Consolidated Statement of Income (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Revenues
Premiums		$ 5,981	$ 5,888
Net investment income		544	592
Fee income		117	114
Net realized investment gains (losses)	[1]	(9)	10
Other revenues		53	25
Total revenues		6,686	6,629
Claims and expenses
Claims and claim adjustment expenses		3,712	3,431
Amortization of deferred acquisition costs		971	963
General and administrative expenses		995	995
Interest expense		91	92
Total claims and expenses		5,769	5,481
Income before income taxes		917	1,148
Income tax expense		226	315
Net income		$ 691	$ 833
Net income per share
Basic		$ 2.33	$ 2.58
Diluted		$ 2.30	$ 2.55
Weighted average number of common shares outstanding
Basic		294.2	320.8
Diluted		297.9	324.5
Cash dividends declared per share		$ 0.61	$ 0.55

[1] Total other-than-temporary impairment (OTTI) losses were $(28) million and $(4) million for the three months ended March 31, 2016 and 2015, respectively. Of total OTTI, credit losses of $(18) million and $(3) million for the three months ended March 31, 2016 and 2015, respectively, were recognized in net realized investment gains (losses). In addition, unrealized losses from other changes in total OTTI of $(10) million and $(1) million for the three months ended March 31, 2016 and 2015, 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.