Consolidated Cash Flow Statement - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Operating Activities
Net income	$ 466	$ 97
Depreciation and amortization	234	211
Asset impairments	0	74
Stock-based compensation	16	18
Deferred income taxes	11	(27)
Net losses on asset dispositions	6	36
Equity companies' earnings in excess of dividends paid	(27)	(27)
Operating working capital	(375)	103
Postretirement benefits	(12)	(41)
Other	(2)	98
Cash Provided by Operations	317	542
Investing Activities
Capital spending	(316)	(189)
Investments in time deposits	(80)	(83)
Maturities of time deposits	72	19
Other	0	(3)
Cash Used for Investing	(324)	(256)
Financing Activities
Cash dividends paid	(345)	(341)
Change in short-term debt	851	249
Debt repayments	(402)	(2)
Proceeds from exercise of stock options	26	14
Acquisitions of common stock for the treasury	(164)	(197)
Other	(8)	(6)
Cash Used for Financing	(42)	(283)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	1	7
Change in Cash and Cash Equivalents	(48)	10
Cash and Cash Equivalents - Beginning of Period	539	616
Cash and Cash Equivalents - End of Period	$ 491	$ 626

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