Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activities
Net earnings	$ 4,616	$ 4,109
Noncash items:
Depreciation and amortization	1,209	1,097
Deferred income taxes	(49)	(107)
Share-based compensation	306	269
Other, net	(208)	(253)
Net change in other operating items, net of effects from acquisitions and changes in AARP balances:
Accounts receivable	(907)	(545)
Other assets	(1,686)	(819)
Medical costs payable	2,137	654
Accounts payable and other liabilities	616	1,126
Other policy liabilities	374	0
Unearned revenues	(179)	91
Cash flows from operating activities	6,229	5,622
Investing activities
Purchases of investments	(6,712)	(7,823)
Sales of investments	4,041	5,810
Maturities of investments	2,557	2,266
Cash paid for acquisitions, net of cash assumed	(16,183)	(851)
Purchases of property, equipment and capitalized software	(1,072)	(1,121)
Other, net	(51)	(139)
Cash flows used for investing activities	(17,420)	(1,858)
Financing activities
Common stock repurchases	(1,130)	(3,024)
Cash dividends paid	(1,310)	(1,004)
Proceeds from common stock issuances	366	400
Proceeds from long-term debt	11,982	0
Repayments of long-term debt	(416)	(812)
Proceeds from commercial paper, net	2,665	1,355
Customer funds administered	119	(440)
Other, net	(446)	(285)
Cash flows from (used for) financing activities	11,830	(3,810)
Effect of exchange rate changes on cash and cash equivalents	(151)	3
Increase (decrease) in cash and cash equivalents	488	(43)
Cash and cash equivalents, beginning of period	7,495	7,276
Cash and Cash Equivalents, end of period	$ 7,983	$ 7,233