CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 2,156	$ 2,329
Investments	2,070	1,801
Receivables	863	597
Income taxes refundable	38	13
Prepaid expenses and other current assets	260	192
Derivative asset	377	374
Total current assets	5,764	5,306
Property, equipment, and capitalized software, net	419	393
Deferred contract costs	79	81
Intangible assets, net	149	122
Goodwill	619	519
Restricted investments	116	109
Deferred income taxes	0	18
Other assets	37	28
Total Assets	7,183	6,576
Current liabilities:
Medical claims and benefits payable	1,940	1,685
Amounts due government agencies	910	729
Accounts payable and accrued liabilities	601	362
Deferred revenue	94	223
Current portion of long-term debt	455	449
Derivative liability	377	374
Total current liabilities	4,377	3,822
Senior notes	965	962
Lease financing obligations	198	198
Deferred income taxes	15	0
Other long-term liabilities	38	37
Total liabilities	5,593	5,019
Stockholders’ equity:
Common stock, $0.001 par value; 150 shares authorized; outstanding: 57 shares at March 31, 2016 and 56 shares at December 31, 2015	0	0
Preferred stock, $0.001 par value; 20 shares authorized, no shares issued and outstanding	0	0
Additional paid-in capital	806	803
Accumulated other comprehensive gain (loss)	2	(4)
Retained earnings	782	758
Total stockholders' equity	1,590	1,557
Total liabilities and stockholders' equity	$ 7,183	$ 6,576