Consolidated Cash Flow Statement - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating Activities
Net income	$ 1,694	$ 1,701
Depreciation and amortization	540	528
Stock-based compensation	64	64
Deferred income taxes	(41)	(13)
Equity companies' earnings in excess of dividends paid	(12)	(31)
Operating working capital	(154)	149
Postretirement benefits	(1)	4
Other	(24)	(41)
Net Cash Provided by (Used in) Operating Activities	2,066	2,361
Investing Activities
Capital spending	(595)	(582)
Investments in time deposits	(123)	(133)
Maturities of time deposits	70	64
Other	(29)	75
Net Cash Provided by (Used in) Investing Activities	(677)	(576)
Financing Activities
Cash dividends paid	(1,017)	(981)
Change in short-term debt	111	(837)
Debt proceeds	937	1,290
Debt repayments	(972)	(596)
Proceeds from exercise of stock options	114	97
Acquisitions of common stock for the treasury	(804)	(512)
Other	(49)	2
Net Cash Provided by (Used in) Financing Activities	(1,680)	(1,537)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	23	17
Change in Cash and Cash Equivalents	(268)	265
Cash and Cash Equivalents - Beginning of Period	923	619
Cash and Cash Equivalents - End of Period	$ 655	$ 884