Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities
Net income	$ 2,053	$ 1,530
Adjustments to Net income:
Depreciation	273	316
Amortization of acquisition-related intangibles	159	159
Amortization of capitalized software	23	16
Stock compensation	143	148
Deferred income taxes	(45)	(35)
Increase (decrease) from changes in:
Accounts receivable	(200)	(176)
Inventories	(157)	(185)
Prepaid expenses and other current assets	12	35
Accounts payable and accrued expenses	(66)	(1)
Accrued compensation	(225)	(175)
Income taxes payable	(236)	106
Changes in funded status of retirement plans	5	32
Other	(27)	(8)
Cash flows from operating activities	1,712	1,762
Cash flows from investing activities
Capital expenditures	(278)	(282)
Proceeds from asset sales	40	0
Purchases of short-term investments	(1,887)	(1,193)
Proceeds from short-term investments	2,385	2,110
Other	(1)	3
Cash flows from investing activities	259	638
Cash flows from financing activities
Proceeds from issuance of long-term debt	605	499
Repayment of debt	(625)	(1,000)
Dividends paid	(998)	(765)
Stock repurchases	(1,200)	(1,157)
Proceeds from common stock transactions	245	261
Other	(12)	(3)
Cash flows from financing activities	(1,985)	(2,165)
Net change in Cash and cash equivalents	(14)	235
Cash and cash equivalents at beginning of period	1,154	1,000
Cash and cash equivalents at end of period	$ 1,140	$ 1,235