CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating Activities
Net income including noncontrolling interests	$ 678	$ 611	[1]
Adjustments to reconcile net income including noncontrolling interests to net cash provided by operations:
Depreciation and amortization	129	109
Restructuring and termination benefits, net of cash	(25)	(9)
Stock-based compensation expense	28	35
Deferred income taxes	13	(51)
Voluntary benefit plan contributions	0	(57)
Cash effects of changes in:
Receivables	(211)	(52)
Inventories	(33)	9
Accounts payable and other accruals	33	98
Other non-current assets and liabilities	4	(2)
Net cash provided by operations	616	691
Investing Activities
Capital expenditures	(118)	(121)
Purchases of marketable securities and investments	(38)	(85)
Proceeds from sale of marketable securities and investments	0	48
Payment for acquisitions, net of cash acquired	(727)	0
Other	2	0
Net cash used in investing activities	(881)	(158)
Financing Activities
Principal payments on debt	(2,079)	(805)
Proceeds from issuance of debt	2,226	738
Dividends paid	(352)	(345)
Purchases of treasury shares	(351)	(333)
Proceeds from exercise of stock options	119	225
Net cash used in financing activities	(437)	(520)
Effect of exchange rate changes on Cash and cash equivalents	18	19
Net increase (decrease) in Cash and cash equivalents	(684)	32
Cash and cash equivalents at beginning of the period	1,535	1,315
Cash and cash equivalents at end of the period	851	1,347
Supplemental Cash Flow Information
Income taxes paid	$ 163	$ 186

[1] Prior year amounts have been reclassified to conform to the current year presentation as a result of the adoption of Accounting Standards Update (“ASU”) No. 2017-07, “Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” For further information regarding the impact of the reclassification, see Note 1, Basis of Presentation, Note 3, Recent Accounting Pronouncements and Updated Accounting Policies and Note 13, Segment Information to the Condensed Consolidated Financial Statements.