Dow Consolidated Statements of Cash Flows Statement - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Cash Flows [Abstract]
Net income	$ 258	$ 601
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0	445
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	258	156
Depreciation and amortization	724	743
Credit for deferred income tax	(57)	(72)
Earnings of nonconsolidated affiliates less than dividends received	134	775
Net periodic pension benefit cost	64	41
Pension contributions	(63)	(99)
Net gain on sales of assets, businesses and investments	(12)	(2)
Restructuring and asset related charges - net	96	156
Other net loss	135	33
Accounts and notes receivable	128	85
Inventories	(111)	(47)
Accounts payable	(314)	(452)
Other assets and liabilities, net	254	(274)
Cash provided by operating activities - continuing operations	1,236	1,043
Cash provided by operating activities - discontinued operations	3	338
Cash provided by operating activities	1,239	1,381
Capital expenditures	(395)	(442)
Investment in gas field developments	(5)	(25)
Proceeds from sales of property and businesses, net of cash divested	11	0
Investments in and loans to nonconsolidated affiliates	(114)	0
Distributions and loan repayments from nonconsolidated affiliates	6	0
Purchases of investments	(128)	(173)
Proceeds from sales and maturities of investments	472	176
Cash used for investing activities - continuing operations	(153)	(464)
Cash used for investing activities - discontinued operations	0	(34)
Cash used for investing activities	(153)	(498)
Changes in short-term notes payable	838	(16)
Proceeds from issuance of long-term debt	2,449	0
Payments on long-term debt	(2,275)	(81)
Purchases of treasury stock	(125)	0
Proceeds from issuance of stock	16	28
Transaction financing, debt issuance and other costs	(93)	0
Employee taxes paid for share-based payment arrangements	(26)	(45)
Distributions to noncontrolling interests	(1)	(2)
Dividends paid to stockholders	(518)	0
Dividends paid to DowDuPont Inc.	0	(535)
Settlements and transfers related to separation from DowDuPont Inc.	0	36
Cash provided by (used for) financing activities - continuing operations	265	(615)
Cash used for financing activities - discontinued operations	0	(18)
Cash provided by (used for) financing activities	265	(633)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(86)	30
Cash reclassified as held for sale	0	(97)
Increase in cash, cash equivalents and restricted cash	1,265	183
Cash, cash equivalents and restricted cash at beginning of period	2,380	2,764
Cash, cash equivalents and restricted cash at end of period	3,645	2,947
Less: Restricted cash and cash equivalents, included in "Other current assets"	12	43
Cash and cash equivalents at end of period	$ 3,633	$ 2,904