Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues
Premiums	$ 8,030	$ 7,605	$ 24,143	$ 23,005
Fees and other revenues	1,204	1,156	3,619	3,554
Net investment income	298	282	909	848
Mail order pharmacy revenues	733	762	2,200	2,207
Realized investment gains (losses):
Other-than-temporary impairments on fixed maturities	(6)	(1)	(15)	(31)
Other realized investment gains (losses), net	123	76	229	141
Net realized investment gains (losses)	117	75	214	110
Total revenues	10,382	9,880	31,085	29,724
Benefits and Expenses
Global Health Care medical costs	4,880	4,692	14,789	14,230
Other benefit expenses	1,342	1,343	4,044	4,125
Mail order pharmacy costs	612	638	1,819	1,842
Other operating expenses	2,696	2,428	7,497	7,038
Amortization of other acquired intangible assets, net	28	37	88	115
Total benefits and expenses	9,558	9,138	28,237	27,350
Income before Income Taxes	824	742	2,848	2,374
Income taxes (benefits):
Current	231	210	821	842
Deferred	31	80	62	63
Total income taxes	262	290	883	905
Net Income	562	452	1,965	1,469
Less: Net Income (Loss) Attributable to Noncontrolling Interests	2	(4)	(6)	(16)
Shareholders' Net Income	$ 560	$ 456	$ 1,971	$ 1,485
Shareholders' Net Income Per Share:
Basic	$ 2.25	$ 1.78	$ 7.79	$ 5.82
Diluted	2.21	1.76	7.67	5.72
Dividends Declared Per Share	$ 0	$ 0	$ 0.04	$ 0.04