CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Cash Flows from Operating Activities
Net income	$ 4,415	$ 3,456
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,424	3,509
Intangible asset impairment charges	0	376
Charge for future payments related to collaboration license options	650	750
Charge for collaboration termination	420	0
Deferred income taxes	(391)	(601)
Share-based compensation	261	232
Other	585	(31)
Net changes in assets and liabilities	(2,034)	(5,259)
Net Cash Provided by Operating Activities	7,330	2,432
Cash Flows from Investing Activities
Capital expenditures	(1,686)	(1,173)
Purchases of securities and other investments	(6,899)	(8,397)
Proceeds from sales of securities and other investments	11,243	12,533
Acquisitions, net of cash acquired	(372)	(347)
Other	(150)	121
Net Cash Provided by Investing Activities	2,136	2,737
Cash Flows from Financing Activities
Net change in short-term borrowings	2,294	1,962
Payments on debt	(3,007)	(301)
Purchases of treasury stock	(3,158)	(2,312)
Dividends paid to stockholders	(3,895)	(3,884)
Proceeds from exercise of stock options	461	481
Other	(289)	(167)
Net Cash Used in Financing Activities	(7,594)	(4,221)
Effect of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash	(140)	438
Net Increase in Cash, Cash Equivalents and Restricted Cash	1,732	1,386
Cash, Cash Equivalents and Restricted Cash at Beginning of Year (includes restricted cash of $4 million at January 1, 2018 included in Other Assets)	6,096	6,515
Cash, Cash Equivalents and Restricted Cash at End of Period (includes restricted cash of $2 million at September 30, 2018 included in Other Assets)	$ 7,828	$ 7,901

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Name:	us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration