Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Activities
Net income including noncontrolling interests	$ 2,527	$ 2,558	$ 2,174
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operations:
Depreciation and amortization	519	511	475
Restructuring and termination benefits, net of cash	18	(7)	91
Stock-based compensation expense	100	109	127
Charge for U.S. tax reform	0	80	275
Deferred income taxes	17	27	108
Voluntary benefit plan contributions	(113)	(67)	(81)
Cash effects of changes in:
Receivables	19	(79)	(15)
Inventories	(77)	(58)	(8)
Accounts payable and other accruals	36	18	(96)
Other non-current assets and liabilities	87	(36)	4
Net cash provided by operations	3,133	3,056	3,054
Investing Activities
Capital expenditures	(335)	(436)	(553)
Sale of property and non-core product lines	1	1	44
Purchases of marketable securities and investments	(184)	(169)	(347)
Proceeds from sale of marketable securities and investments	131	156	391
Payment for acquisitions, net of cash acquired	(1,711)	(728)	0
Other	(1)	6	(6)
Net cash used in investing activities	(2,099)	(1,170)	(471)
Financing Activities
Principal payments on debt	(6,611)	(7,355)	(4,808)
Proceeds from issuance of debt	8,059	7,176	4,779
Dividends paid	(1,614)	(1,591)	(1,529)
Purchases of treasury shares	(1,202)	(1,238)	(1,399)
Proceeds from exercise of stock options	498	329	507
Net cash used in financing activities	(870)	(2,679)	(2,450)
Effect of exchange rate changes on Cash and cash equivalents	(7)	(16)	87
Net (decrease) increase in Cash and cash equivalents	157	(809)	220
Cash and cash equivalents at beginning of year	726	1,535	1,315
Cash and cash equivalents at end of year	883	726	1,535
Supplemental Cash Flow Information
Income taxes paid	803	847	1,037
Interest paid	$ 185	$ 194	$ 150