Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues
Premiums	$ 7,654	$ 7,432	$ 15,400	$ 14,834
Fees and other revenues	1,197	1,117	2,398	2,255
Net investment income	294	297	566	573
Mail order pharmacy revenues	748	625	1,445	1,203
Realized investment gains (losses):
Other-than-temporary impairments on debt securities	(3)	(10)	(30)	(15)
Other realized investment gains (losses), net	70	31	65	109
Net realized investment gains (losses)	67	21	35	94
Total revenues	9,960	9,492	19,844	18,959
Benefits and Expenses
Global Health Care medical costs	4,777	4,577	9,538	9,181
Other benefit expenses	1,414	1,199	2,782	2,468
Mail order pharmacy costs	630	529	1,204	1,021
Other operating expenses	2,289	2,212	4,610	4,416
Amortization of other acquired intangible assets, net	37	39	78	83
Total benefits and expenses	9,147	8,556	18,212	17,169
Income before Income Taxes	813	936	1,632	1,790
Income taxes (benefits):
Current	338	375	632	683
Deferred	(28)	(23)	(17)	(8)
Total income taxes	310	352	615	675
Net Income	503	584	1,017	1,115
Less: Net Income (Loss) Attributable to Noncontrolling Interests	(7)	(4)	(12)	(6)
Shareholders' Net Income	$ 510	$ 588	$ 1,029	$ 1,121
Shareholders' Net Income Per Share:
Basic	$ 2.00	$ 2.30	$ 4.03	$ 4.38
Diluted	1.97	2.26	3.97	4.30
Dividends Declared Per Share	$ 0	$ 0	$ 0.04	$ 0.04