CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating activities
Net income	$ 948	$ 895
Adjustments to reconcile to net cash provided by operating activities
Depreciation and amortization	453	467
Deferred income taxes	(107)	(74)
Pension and other postretirement benefits expense	104	116
Contributions to pension plans	(160)	(74)
Contributions to other postretirement benefits plans	(11)	(18)
Changes in working capital	(376)	(256)
Other - net	186	77
Net cash provided by operating activities	1,037	1,133
Investing activities
Capital expenditures for property, plant and equipment	(246)	(246)
Cash received from acquisitions of businesses, net of cash acquired	0	1
Sale (purchases) of short-term investments - net	(309)	38
Other - net	(31)	3
Net cash used in investing activities	(586)	(204)
Financing activities
Proceeds from borrowings	832	151
Payments on borrowings	(543)	(240)
Cash dividends paid	(537)	(521)
Exercise of employee stock options	49	37
Repurchase of shares	(465)	(295)
Payments Related to Tax Withholding for Share-based Compensation	(21)	(17)
Other - net	(4)	3
Net cash used in financing activities	(689)	(882)
Effect of currency on cash	7	8
Total (decrease) increase in cash	(231)	55
Cash at the beginning of the period	543	268
Cash at the end of the period	$ 312	$ 323