Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues
Premiums	$ 8,103	$ 7,746
Fees and other revenues	1,223	1,201
Net investment income	303	272
Mail order pharmacy revenues	710	697
Realized investment gains (losses):
Other-than-temporary impairments on fixed maturities	(7)	(27)
Other realized investment gains (losses), net	53	(5)
Net realized investment gains (losses)	46	(32)
Total revenues	10,385	9,884
Benefits and Expenses
Global Health Care medical costs	4,985	4,761
Other benefit expenses	1,367	1,368
Mail order pharmacy costs	581	574
Other operating expenses	2,530	2,321
Amortization of other acquired intangible assets, net	32	41
Total benefits and expenses	9,495	9,065
Income before Income Taxes	890	819
Income taxes (benefits):
Current	286	294
Deferred	11	11
Total income taxes	297	305
Net Income	593	514
Less: Net Income (Loss) Attributable to Noncontrolling Interests	(5)	(5)
Shareholders' Net Income	$ 598	$ 519
Shareholders' Net Income Per Share:
Basic	$ 2.34	$ 2.04
Diluted	2.30	2.00
Dividends Declared Per Share	$ 0.04	$ 0.04