Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Activities
Net Income	$ 595,000,000	$ 4,404,000,000	$ 7,783,000,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,155,000,000	2,862,000,000	2,521,000,000
Provision (Credit) for deferred income tax	933,000,000	(1,259,000,000)	305,000,000
Earnings of nonconsolidated affiliates less than dividends received	95,000,000	243,000,000	142,000,000
Net periodic pension benefit cost	1,137,000,000	389,000,000	755,000,000
Pension contributions	(1,676,000,000)	(629,000,000)	(844,000,000)
Net gain on sales of assets, businesses and investments	(1,156,000,000)	(214,000,000)	(4,655,000,000)
Net gain on step acquisition of nonconsolidated affiliates	0	(2,445,000,000)	(361,000,000)
Restructuring, goodwill impairment and asset related charges - net	3,100,000,000	595,000,000	559,000,000
Asbestos-related charge	0	1,113,000,000.00	0
Other net loss	378,000,000	361,000,000	437,000,000
Changes in assets and liabilities, net of effects of acquired and divested companies:
Accounts and notes receivable	(4,734,000,000)	(1,539,000,000)	(84,000,000)
Proceeds from interests in trade accounts receivable conduits	2,269,000,000	1,257,000,000	1,034,000,000
Inventories	(1,225,000,000)	610,000,000	780,000,000
Accounts payable	1,735,000,000	569,000,000	(717,000,000)
Other assets and liabilities, net	(104,000,000)	(717,000,000)	(48,000,000)
Cash provided by operating activities	4,502,000,000	5,600,000,000	7,607,000,000
Investing Activities
Capital expenditures	(3,144,000,000)	(3,804,000,000)	(3,703,000,000)
Investment in gas field developments	(121,000,000)	(113,000,000)	0
Construction of assets pending sale / leaseback	0	(63,000,000)	0
Proceeds from sale / leaseback of assets	0	87,000,000	3,000,000
Purchases of previously leased assets	(187,000,000)	0	(46,000,000)
Payment into escrow account	(130,000,000)	(835,000,000)	0
Distribution from escrow account	130,000,000	835,000,000	0
Proceeds from sales of property and businesses, net of cash divested	1,691,000,000	284,000,000	2,383,000,000
Acquisitions of property and businesses, net of cash acquired	16,000,000	(187,000,000)	(123,000,000)
Cash acquired in step acquisition of nonconsolidated affiliate	0	1,050,000,000	0
Investments in and loans to nonconsolidated affiliates	(749,000,000)	(1,020,000,000)	(803,000,000)
Distributions and loan repayments from nonconsolidated affiliates	69,000,000	109,000,000	17,000,000
Proceeds from sale of ownership interests in nonconsolidated affiliates	64,000,000	22,000,000	1,528,000,000
Purchases of investments	(643,000,000)	(577,000,000)	(1,246,000,000)
Proceeds from sales and maturities of investments	1,163,000,000	733,000,000	640,000,000
Other investing activities, net	(100,000,000)	0	0
Cash used for investing activities	(1,941,000,000)	(3,479,000,000)	(1,350,000,000)
Financing Activities
Changes in short-term notes payable	293,000,000	(33,000,000)	(82,000,000)
Proceeds from issuance of long-term debt	0	32,000,000	1,383,000,000
Payments on long-term debt	(621,000,000)	(588,000,000)	(1,114,000,000)
Purchases of treasury stock	0	(916,000,000)	(1,166,000,000)
Proceeds from issuance of parent company stock	66,000,000	0	0
Proceeds from sales of common stock	423,000,000	398,000,000	508,000,000
Employee taxes paid for share-based payment arrangements	(93,000,000)	(65,000,000)	(50,000,000)
Distributions to noncontrolling interests	(129,000,000)	(176,000,000)	(112,000,000)
Purchases of noncontrolling interests	0	(202,000,000)	(175,000,000)
Contributions from noncontrolling interests	0	0	17,000,000
Dividends paid to stockholders	(2,179,000,000)	(2,462,000,000)	(2,253,000,000)
Dividends paid to parent	(1,056,000,000)	0	0
Other financing activities, net	(4,000,000)	(2,000,000)	(88,000,000)
Cash used for financing activities	(3,300,000,000)	(4,014,000,000)	(3,132,000,000)
Effect of exchange rate changes on cash	320,000,000	(77,000,000)	(202,000,000)
Summary
Increase (decrease) in cash and cash equivalents	(419,000,000)	(1,970,000,000)	2,923,000,000
Cash and cash equivalents at beginning of year	6,607,000,000	8,577,000,000	5,654,000,000
Cash and cash equivalents at end of year	6,188,000,000	6,607,000,000	8,577,000,000
Interest, net of amounts capitalized	1,178,000,000	1,192,000,000	1,137,000,000
Income taxes	$ 1,805,000,000	$ 1,592,000,000	$ 1,405,000,000