Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net income	$ 2,522	$ 2,771
Adjustments to net income:
Depreciation	339	281
Amortization of acquisition-related intangibles	159	159
Amortization of capitalized software	27	22
Stock compensation	128	144
Gains on sales of assets	(23)	0
Deferred taxes	35	(30)
Increase (decrease) from changes in:
Accounts receivable	(212)	(273)
Inventories	138	(155)
Prepaid expenses and other current assets	241	417
Accounts payable and accrued expenses	(93)	(45)
Accrued compensation	(244)	(249)
Income taxes payable	(107)	(11)
Changes in funded status of retirement plans	9	14
Other	(16)	(107)
Cash flows from operating activities	2,903	2,938
Cash flows from investing activities
Capital expenditures	(535)	(438)
Proceeds from asset sales	30	0
Purchases of short-term investments	(388)	(2,209)
Proceeds from short-term investments	1,784	2,830
Other	24	2
Cash flows from investing activities	915	185
Cash flows from financing activities
Proceeds from issuance of long-term debt	743	1,500
Repayment of debt	0	(500)
Dividends paid	(1,446)	(1,217)
Stock repurchases	(2,015)	(1,891)
Proceeds from common stock transactions	297	280
Other	(22)	(32)
Cash flows from financing activities	(2,443)	(1,860)
Net change in cash and cash equivalents	1,375	1,263
Cash and cash equivalents at beginning of period	2,438	1,656
Cash and cash equivalents at end of period	$ 3,813	$ 2,919