Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended								12 Months Ended			56 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Aug. 30, 2017
Operating Activities
Net income (loss)									$ (1,272)	$ 4,775	$ 595
Less: Income from discontinued operations, net of tax	$ 0	$ 0	$ 0	$ 445	$ 432	$ 335	$ 554	$ 514	445	1,835	1,882
Income (loss) from continuing operations, net of tax	(2,310)	$ 347	$ 90	156	491	$ 714	$ 810	925	(1,717)	2,940	(1,287)
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Depreciation and amortization									2,938	2,909	2,546
Provision (Credit) for deferred income tax									(228)	(429)	1,413
Earnings of nonconsolidated affiliates less than (in excess of) dividends received									1,114	108	253
Net periodic pension benefit cost									144	279	1,032
Pension contributions									(261)	(1,651)	(1,672)
Net gain on sales of assets, businesses and investments									(81)	(38)	(419)
Restructuring, goodwill impairment and asset related charges - net									3,219	221	2,739
Other net loss									198	415	451
Changes in assets and liabilities, net of effects of acquired and divested companies:
Accounts and notes receivable									1,253	(855)	(11,431)
Inventories									668	(859)	(891)
Accounts payable									(948)	787	1,081
Other assets and liabilities, net									(586)	(731)	(258)
Cash provided by (used for) operating activities - continuing operations									5,713	3,096	(6,443)
Cash provided by operating activities - discontinued operations									217	1,158	1,514
Cash provided by (used for) operating activities									5,930	4,254	(4,929)
Investing Activities
Capital expenditures									(1,961)	(2,091)	(2,807)
Investment in gas field developments									(76)	(114)	(121)
Purchases of previously leased assets									(9)	(26)	(187)
Proceeds from sales of property and businesses, net of cash divested									84	47	522
Acquisitions of property and businesses, net of cash acquired									0	(20)	47
Investments in and loans to nonconsolidated affiliates									(638)	(18)	(749)
Distributions and loan repayments from nonconsolidated affiliates									89	55	69
Purchases of investments									(899)	(1,530)	(642)
Proceeds from sales and maturities of investments									1,252	1,214	1,165
Proceeds from interests in trade accounts receivable conduits									0	657	9,462
Other investing activities, net									0	0	34
Cash provided by (used for) investing activities - continuing operations									(2,158)	(1,826)	6,793
Cash provided by (used for) investing activities - discontinued operations									(34)	(369)	725
Cash provided by (used for) investing activities									(2,192)	(2,195)	7,518
Financing Activities
Changes in short-term notes payable									307	(178)	268
Proceeds from issuance of long-term debt									2,287	1,999	0
Payments on long-term debt									(5,561)	(3,054)	(617)
Purchases of treasury stock									(500)	0	0	$ (8,100)
Proceeds from issuance of parent company stock									93	112	66
Proceeds from sales of common stock									0	0	423
Transaction financing, debt issuance and other costs									(119)	(70)	0
Employee taxes paid for share-based payment arrangements									(60)	(77)	(81)
Distributions to noncontrolling interests									(77)	(135)	(101)
Purchases of noncontrolling interests									(297)	0	0
Dividends paid to stockholders									(1,550)	0	(2,179)
Dividends paid to parent									(535)	(3,711)	(1,056)
Settlements and transfers related to separation from DowDuPont Inc.									1,935	(240)	6
Other financing activities, net									0	3	(4)
Cash used for financing activities - continuing operations									(4,077)	(5,351)	(3,275)
Cash used for financing activities - discontinued operations									(18)	(53)	(50)
Cash used for financing activities									(4,095)	(5,404)	(3,325)
Effect of exchange rate changes on cash, cash equivalents and restricted cash									(27)	(99)	320
Summary
Decrease in cash, cash equivalents and restricted cash									(384)	(3,444)	(416)
Cash, cash equivalents and restricted cash at beginning of year				$ 2,764				$ 6,208	2,764	6,208	6,624
Cash, cash equivalents and restricted cash at end of year	2,380				2,764				2,380	2,764	6,208
Less: Restricted cash and cash equivalents, included in Other current assets	13				40				13	40	19
Cash and cash equivalents at end of year	$ 2,367				$ 2,724				$ 2,367	$ 2,724	$ 6,189