Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Activities
Net income	$ 4,633	$ 595	$ 4,404
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Depreciation and amortization	3,329	3,155	2,862
Provision (Credit) for deferred income tax	(530)	933	(1,259)
Earnings of nonconsolidated affiliates less than (in excess of) dividends received	(42)	95	243
Net periodic pension benefit cost	380	1,137	389
Pension contributions	(1,656)	(1,676)	(629)
Net gain on sales of assets, businesses and investments	(67)	(1,156)	(214)
Net (gain) loss on step acquisition of nonconsolidated affiliate	47	0	(2,445)
Restructuring, goodwill impairment and asset related charges - net	620	3,100	595
Asbestos-related charge	0	0	1,113
Other net loss	426	378	361
Changes in assets and liabilities, net of effects of acquired and divested companies:
Accounts and notes receivable	(1,532)	(11,927)	(8,833)
Inventories	(983)	(1,225)	610
Accounts payable	359	1,735	569
Other assets and liabilities, net	(1,090)	(102)	(723)
Cash provided by (used for) operating activities	3,894	(4,958)	(2,957)
Investing Activities
Capital expenditures	(2,538)	(3,144)	(3,804)
Investment in gas field developments	(114)	(121)	(113)
Purchases of previously leased assets	(26)	(187)	0
Proceeds from sales of property and businesses, net of cash divested	155	1,691	284
Acquisitions of property and businesses, net of cash acquired	(20)	47	(187)
Cash acquired in step acquisition of nonconsolidated affiliate	0	0	1,070
Investments in and loans to nonconsolidated affiliates	(18)	(749)	(1,020)
Distributions and loan repayments from nonconsolidated affiliates	55	69	109
Proceeds from sales of ownership interests in nonconsolidated affiliates	4	64	22
Purchases of investments	(1,530)	(643)	(577)
Proceeds from sales and maturities of investments	1,216	1,163	733
Proceeds from interests in trade accounts receivable conduits	657	9,462	8,551
Other investing activities, net	31	(100)	24
Cash provided by (used for) investing activities	(2,128)	7,552	5,092
Financing Activities
Changes in short-term notes payable	(176)	293	(33)
Proceeds from issuance of long-term debt	2,000	0	32
Payments on long-term debt	(3,058)	(621)	(588)
Purchases of treasury stock	0	0	(916)
Proceeds from issuance of parent company stock	112	66	0
Proceeds from sales of common stock	0	423	398
Employee taxes paid for share-based payment arrangements	(92)	(93)	(65)
Distributions to noncontrolling interests	(172)	(129)	(176)
Purchases of noncontrolling interests	0	0	(202)
Dividends paid to stockholders	0	(2,179)	(2,462)
Dividends paid to parent	(3,711)	(1,056)	0
Other financing activities, net	(67)	(35)	(2)
Cash used for financing activities	(5,164)	(3,331)	(4,014)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(100)	320	(77)
Summary
Decrease in cash, cash equivalents and restricted cash	(3,498)	(417)	(1,956)
Cash, cash equivalents and restricted cash at beginning of year	6,207	6,624	8,580
Cash, cash equivalents and restricted cash at end of year	2,709	6,207	6,624
Less: Restricted cash and cash equivalents, included in Other current assets	40	19	17
Cash and cash equivalents at end of year	2,669	6,188	6,607
Supplemental cash flow information
Interest, net of amounts capitalized	1,198	1,178	1,192
Income taxes	$ 1,419	$ 1,805	$ 1,592