Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Net income		$ 5,017	$ 5,580	$ 3,682
Adjustments to net income:
Depreciation		708	590	539
Amortization of acquisition-related intangibles		288	318	318
Amortization of capitalized software		54	46	47
Stock compensation		217	232	242
Gain (Loss) on Disposition of Assets		(23)	(3)	0
Deferred taxes		81	(105)	112
Increase (decrease) from changes in:
Accounts receivable		133	71	(7)
Inventories		216	(282)	(167)
Prepaid expenses and other current assets		265	669	76
Accounts payable and accrued expenses		(93)	(7)	51
Accrued compensation		(15)	(7)	(3)
Income taxes payable		(193)	158	468
Changes in funded status of retirement plans		29	36	21
Other		(35)	(107)	(16)
Cash flows from operating activities		6,649	7,189	5,363
Cash flows from investing activities
Capital expenditures		(847)	(1,131)	(695)
Proceeds from asset sales		30	9	40
Purchases of short-term investments		(3,444)	(5,641)	(4,555)
Proceeds from short-term investments		2,309	6,708	4,095
Other		32	(23)	(12)
Cash flows from investing activities		(1,920)	(78)	(1,127)
Cash flows from financing activities
Proceeds from issuance of long-term debt		1,491	1,500	1,099
Repayment of debt		(750)	(500)	(625)
Dividends paid		(3,008)	(2,555)	(2,104)
Stock repurchases		(2,960)	(5,100)	(2,556)
Proceeds from common stock transactions	[1]	539	373	483
Other		(42)	(47)	(31)
Cash flows from financing activities		(4,730)	(6,329)	(3,734)
Net change in cash and cash equivalents		(1)	782	502
Cash and cash equivalents at beginning of period		2,438	1,656	1,154
Cash and cash equivalents at end of period		$ 2,437	$ 2,438	$ 1,656

[1] Net of taxes paid for employee shares withheld of $52 million, $60 million and $83 million in 2019, 2018 and 2017, respectively.