EIDP (CTA-PA) 10-Q 4 Nov 21 2021 Q3 Quarterly report Financial data

DEI Document

DEI Document - $ / shares	9 Months Ended
	Sep. 30, 2021	Jul. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Amendment Flag	false
Document Transition Report	false
Entity File Number	001-38710
Entity Registrant Name	Corteva, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	82-4979096
Entity Address, Address Line One	974 Centre Road,
Entity Address, City or Town	Wilmington,
Entity Address, State or Province	DE
Entity Address, Postal Zip Code	19805
City Area Code	(302)
Local Phone Number	485-3000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		728,909,000
Common Stock, Par Value	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Entity Central Index Key	0001755672
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Small Business	false
Common Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	CTVA
Security Exchange Name	NYSE
EID [Member]
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Amendment Flag	false
Document Transition Report	false
Entity File Number	1-815
Entity Registrant Name	E. I. du Pont de Nemours and Company
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	51-0014090
Entity Address, Address Line One	974 Centre Road,
Entity Address, City or Town	Wilmington,
Entity Address, State or Province	DE
Entity Address, Postal Zip Code	19805
City Area Code	(302)
Local Phone Number	485-3000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		200
Common Stock, Par Value	$ 0.30	$ 0.30	$ 0.30	$ 0.30
Entity Central Index Key	0000030554
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Small Business	false
EID [Member] | $3.50 Series Preferred Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	$3.50 Series Preferred Stock
Trading Symbol	CTAPrA
Security Exchange Name	NYSE
EID [Member] | $4.50 Series Preferred Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	$4.50 Series Preferred Stock
Trading Symbol	CTAPrB
Security Exchange Name	NYSE

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net Sales	$ 2,371	$ 1,863	$ 12,176	$ 11,010
Cost of Goods Sold	1,558	1,297	6,988	6,395
Research and Development Expense	297	284	871	837
Selling, General and Administrative Expenses	672	597	2,403	2,319
Amortization of Intangibles	180	162	543	501
Restructuring and Asset related charges, net	26	49	261	298
Other income - net	378	30	1,013	120
Interest Expense	8	11	22	35
Income from continuing operations before income taxes	8	(507)	2,101	745
(Benefit from) provision for income taxes on continuing operations	(28)	(117)	434	88
Income from continuing operations after income taxes	36	(390)	1,667	657
Income (loss) from discontinued operations after income taxes	(4)	0	(59)	1
Net income	32	(390)	1,608	658
Net income attributable to noncontrolling interests	2	2	8	18
Net income attributable to Corteva	$ 30	$ (392)	$ 1,600	$ 640
Basic earnings (loss) per share of common stock from continuing operations	$ 0.05	$ (0.52)	$ 2.25	$ 0.85
Basic loss per share of common stock from discontinued operations	(0.01)	0	(0.08)	0
Basic earnings (loss) per share of common stock	0.04	(0.52)	2.17	0.85
Diluted earnings (loss) per share of common stock from continuing operations	0.05	(0.52)	2.23	0.85
Diluted loss per share of common stock from discontinued operations	(0.01)	0	(0.08)	0
Diluted earnings (loss) per share of common stock	$ 0.04	$ (0.52)	$ 2.15	$ 0.85
EID [Member]
Net Sales	$ 2,371	$ 1,863	$ 12,176	$ 11,010
Cost of Goods Sold	1,558	1,297	6,988	6,395
Research and Development Expense	297	284	871	837
Selling, General and Administrative Expenses	672	597	2,403	2,319
Amortization of Intangibles	180	162	543	501
Restructuring and Asset related charges, net	26	49	261	298
Other income - net	378	30	1,013	120
Interest Expense	19	30	61	117
Income from continuing operations before income taxes	(3)	(526)	2,062	663
(Benefit from) provision for income taxes on continuing operations	(30)	(122)	425	68
Income from Continuing Operations After Taxes	27	(404)	1,637	595
Income (loss) from discontinued operations after income taxes	(4)	0	(59)	1
Net income	23	(404)	1,578	596
Net income attributable to noncontrolling interests	(1)	0	0	11
Net income attributable to Corteva	$ 24	$ (404)	$ 1,578	$ 585

Consolidated Statements of Comp

Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net income	$ 32	$ (390)	$ 1,608	$ 658
Cumulative Translation Adjustments	(264)	68	(424)	(507)
Unrealized Gain (Loss) on Investments	0	0	10	0
Derivatives Instruments	11	(20)	107	(16)
Total other comprehensive (loss) income	(400)	49	(755)	(526)
Comprehensive income (loss)	(368)	(341)	853	132
Comprehensive Income Attributable to Noncontrolling Interest - Net of Tax	2	2	8	18
Comprehensive Income (Loss) Attributable to Corteva	(370)	(343)	845	114
Pension Plan
Adjustments to benefit plans	10	0	26	(6)
Other Benefit Plans
Adjustments to benefit plans	(157)	1	(474)	3
EID [Member]
Net income	23	(404)	1,578	596
Cumulative Translation Adjustments	(264)	68	(424)	(507)
Unrealized Gain (Loss) on Investments	0	0	10	0
Derivatives Instruments	11	(20)	107	(16)
Total other comprehensive (loss) income	(400)	49	(755)	(526)
Comprehensive income (loss)	(377)	(355)	823	70
Comprehensive Income Attributable to Noncontrolling Interest - Net of Tax	(1)	0	0	11
Comprehensive Income (Loss) Attributable to Corteva	(376)	(355)	823	59
EID [Member] | Pension Plan
Adjustments to benefit plans	10	0	26	(6)
EID [Member] | Other Benefit Plans
Adjustments to benefit plans	$ (157)	$ 1	$ (474)	$ 3

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Cash and cash equivalents	$ 2,779	$ 3,526	$ 2,768
Marketable Securities	103	269	152
Accounts and notes receivable - net	5,818	4,926	5,627
Inventories	4,417	4,882	4,374
Other current assets	1,029	1,165	1,167
Total current assets	14,146	14,768	14,088
Investments in nonconsolidated affiliates	67	66	62
Property, Plant and Equipment	8,270	8,253	7,985
Less: Accumulated Depreciation	3,960	3,857	3,712
Net Property, Plant and Equipment	4,310	4,396	4,273
Goodwill	10,130	10,269	10,110
Other intangible assets	10,225	10,747	10,914
Deferred Income Taxes	448	464	289
Other assets	1,796	1,939	1,954
Total Assets	41,122	42,649	41,690
Short-term borrowings and finance lease obligations	1,372	3	2,142
Accounts payable	3,512	3,615	2,994
Income Taxes Payable	95	123	168
Deferred Revenue	692	2,662	402
Accrued and other current liabilities	2,134	2,145	2,028
Total current liabilities	7,805	8,548	7,734
Long-term Debt	1,101	1,102	1,102
Deferred income tax liabilities	930	893	740
Pension and other post employment benefits - noncurrent	4,583	5,176	5,904
Other noncurrent obligations	1,724	1,867	1,864
Total noncurrent liabilities	8,338	9,038	9,610
Common stock	7	7	7
Additional Paid in Capital	27,712	27,707	27,895
Retained earnings	666	0	0
Accumulated other comprehensive loss	(3,645)	(2,890)	(3,796)
Total stockholders' equity attributable to the company	24,740	24,824	24,106
Noncontrolling Interests	239	239	240
Total Equity	24,979	25,063	24,346
Liabilities and Equity	41,122	42,649	41,690
EID [Member]
Cash and cash equivalents	2,779	3,526	2,768
Marketable Securities	103	269	152
Accounts and notes receivable - net	5,818	4,926	5,627
Inventories	4,417	4,882	4,374
Other current assets	1,029	1,165	1,167
Total current assets	14,146	14,768	14,088
Investments in nonconsolidated affiliates	67	66	62
Property, Plant and Equipment	8,270	8,253	7,985
Less: Accumulated Depreciation	3,960	3,857	3,712
Net Property, Plant and Equipment	4,310	4,396	4,273
Goodwill	10,130	10,269	10,110
Other intangible assets	10,225	10,747	10,914
Deferred Income Taxes	448	464	289
Other assets	1,796	1,939	1,954
Total Assets	41,122	42,649	41,690
Short-term borrowings and finance lease obligations	1,372	3	2,142
Accounts payable	3,512	3,615	2,994
Income Taxes Payable	95	123	168
Deferred Revenue	692	2,662	402
Accrued and other current liabilities	2,147	2,148	2,050
Total current liabilities	7,818	8,551	7,756
Long-term Debt	1,101	1,102	1,102
Long Term Debt - Related Party	2,443	3,459	3,712
Deferred income tax liabilities	930	893	740
Pension and other post employment benefits - noncurrent	4,583	5,176	5,904
Other noncurrent obligations	1,724	1,867	1,864
Total noncurrent liabilities	10,781	12,497	13,322
Common stock	0	0	0
Additional Paid in Capital	24,158	24,049	23,995
Retained earnings	1,771	203	173
Accumulated other comprehensive loss	(3,645)	(2,890)	(3,796)
Total stockholders' equity attributable to the company	22,523	21,601	20,611
Noncontrolling Interests	0	0	1
Total Equity	22,523	21,601	20,612
Liabilities and Equity	41,122	42,649	41,690
EID [Member] | $4.50 Series Preferred Stock [Member]
Preferred Stock	169	169	169
EID [Member] | $3.50 Series Preferred Stock [Member]
Preferred Stock	$ 70	$ 70	$ 70

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($)	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Common Stock, Par Value	$ 0.01	$ 0.01	$ 0.01
Common Stock, Shares Authorized	1,666,667,000	1,666,667,000	1,666,667,000
Common Stock, Shares, Outstanding	730,267,000	743,458,000	747,492,000
EID [Member]
Common Stock, Par Value	$ 0.30	$ 0.30	$ 0.30
Common Stock, Shares Authorized	1,800,000,000	1,800,000,000	1,800,000,000
Common Stock, Shares, Outstanding	200	200	200
EID [Member] | $4.50 Series Preferred Stock [Member]
Preferred Stock, Par Value	$ 0	$ 0	$ 0
Preferred Stock, Shares Authorized	23,000,000	23,000,000	23,000,000
Preferred Stock, Shares Issued	1,673,000	1,673,000	1,673,000
Preferred Stock, Redemption Amount	$ 120	$ 120	$ 120
EID [Member] | $3.50 Series Preferred Stock [Member]
Preferred Stock, Par Value	$ 0	$ 0	$ 0
Preferred Stock, Shares Authorized	23,000,000	23,000,000	23,000,000
Preferred Stock, Shares Issued	700,000	700,000	700,000
Preferred Stock, Redemption Amount	$ 102	$ 102	$ 102

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
Cash used for operating activities
Net income		$ 1,608	$ 658
Provision for (benefit from) Deferred Income Tax		151	(153)
Net Periodic Pension and OPEB benefit, net		(959)	(255)
Pension and OPEB Contributions		(202)	(222)
Net loss (gain) on sales of property, businesses, consolidated companies, and investments		(1)	29
Restructuring and Asset related charges, net		261	298
Other net loss		117	240
Accounts and notes receivable		(1,116)	(619)
Inventories		375	481
Accounts Payable		(41)	(629)
Deferred Revenue		(1,945)	(2,169)
Other Assets and Liabilities		7	236
Cash used for operating activities		(819)	(1,237)
Cash used for investing activities
Capital expenditures		(413)	(301)
Proceeds from the sale of property, businesses, and consolidated companies, net of cash divested		53	22
Investments in and loans to nonconsolidated affiliates		(3)	(1)
Purchases of investments		(147)	(656)
Proceeds from Sale and Maturities of Investments		310	498
Other investing activities - net		(1)	(7)
Cash used for investing activities		(201)	(445)
Cash provided by financing activities
Net change in borrowings (less than 90 days)		949	1,582
Proceeds from debt		419	2,434
Payments on Debt		(1)	(879)
Repurchase of Common Stock		(750)	(83)
Proceeds from Exercise of Stock Options		71	19
Dividends paid to stockholders		(295)	(291)
Payments for acquisition of subsidiary's interest from the non-controlling Interests		0	(60)
Other financing activities		(28)	(27)
Cash provided by financing activities		365	2,695
Effect of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash		(78)	(64)
Increase (Decrease) in Cash, Cash Equivalents, Restricted Cash		(733)	949
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		3,873	2,173
Cash, Cash Equivalents and Restricted Cash at End of Period	[1]	3,140	3,122
EID [Member]
Cash used for operating activities
Net income		1,578	596
Depreciation and Amortization		926	868
Provision for (benefit from) Deferred Income Tax		151	(153)
Net Periodic Pension and OPEB benefit, net		(959)	(255)
Pension and OPEB Contributions		(202)	(222)
Net loss (gain) on sales of property, businesses, consolidated companies, and investments		(1)	29
Restructuring and Asset related charges, net		261	298
Other net loss		117	240
Accounts and notes receivable		(1,116)	(619)
Inventories		375	481
Accounts Payable		(41)	(629)
Deferred Revenue		(1,945)	(2,169)
Other Assets and Liabilities		18	252
Cash used for operating activities		(838)	(1,283)
Cash used for investing activities
Capital expenditures		(413)	(301)
Proceeds from the sale of property, businesses, and consolidated companies, net of cash divested		53	22
Investments in and loans to nonconsolidated affiliates		(3)	(1)
Purchases of investments		(147)	(656)
Proceeds from Sale and Maturities of Investments		310	498
Other investing activities - net		(1)	(7)
Cash used for investing activities		(201)	(445)
Cash provided by financing activities
Net change in borrowings (less than 90 days)		949	1,582
Proceeds from Related Party Debt		31	67
Repayments of Related Party Debt		(1,047)	(376)
Proceeds from debt		419	2,434
Payments on Debt		(1)	(879)
Proceeds from Exercise of Stock Options		71	19
Payments for acquisition of subsidiary's interest from the non-controlling Interests		0	(60)
Other financing activities		(38)	(46)
Cash provided by financing activities		384	2,741
Effect of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash		(78)	(64)
Increase (Decrease) in Cash, Cash Equivalents, Restricted Cash		(733)	949
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		3,873	2,173
Cash, Cash Equivalents and Restricted Cash at End of Period		3,140	3,122
Total company [Member]
Cash used for operating activities
Depreciation and Amortization		926	868
Restructuring and Asset related charges, net		261	298
Total company [Member] | EID [Member]
Cash used for operating activities
Depreciation and Amortization		926	868
Restructuring and Asset related charges, net		$ 261	$ 298
[1]	See page 17 for reconciliation of cash and cash equivalents and restricted cash equivalents presented in interim Consolidated Balance Sheets to total cash, cash equivalents and restricted cash equivalents presented in the interim Consolidated Statements of Cash Flows.

Statement of Stockholders Equit

Statement of Stockholders Equity Statement - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comp (Loss) Income	Noncontrolling Interest [Member]	EID [Member]	EID [Member]Preferred Stock [Member]	EID [Member]Common Stock [Member]	EID [Member]Additional Paid-in Capital [Member]	EID [Member]Retained Earnings [Member]	EID [Member]Accumulated Other Comp (Loss) Income	EID [Member]Noncontrolling Interest [Member]
Beginning Balance at Dec. 31, 2019	$ 24,555	$ 7	$ 27,997	$ (425)	$ (3,270)	$ 246	$ 20,528	$ 239	$ 0	$ 23,958	$ (406)	$ (3,270)	$ 7
Net income (loss)	282			272		10	258				250		8
Other comprehensive (loss) income	(663)				(663)		(663)					(663)
Common Dividends	(97)		(97)
Dividends, Preferred Stock							(2)			(2)
Issuance of Corteva Stock	14		14				14			14
Share-based compensation	2		2				2			2
Repurchase of common stock	(50)		(50)
Other-net	36		40	(2)		(2)	30			32	(2)
Ending Balance at Mar. 31, 2020	24,079	7	27,906	(155)	(3,933)	254	20,167	239	0	24,004	(158)	(3,933)	15
Beginning Balance at Dec. 31, 2019	24,555	7	27,997	(425)	(3,270)	246	20,528	239	0	23,958	(406)	(3,270)	7
Net income (loss)	658						596
Other comprehensive (loss) income	(526)				(526)		(526)
Ending Balance at Sep. 30, 2020	24,346	7	27,895	0	(3,796)	240	20,612	239	0	23,995	173	(3,796)	1
Beginning Balance at Mar. 31, 2020	24,079	7	27,906	(155)	(3,933)	254	20,167	239	0	24,004	(158)	(3,933)	15
Net income (loss)	766			760		6	742				739		3
Other comprehensive (loss) income	88				88		88					88
Common Dividends	(97)			(97)
Dividends, Preferred Stock							(3)				(3)
Issuance of Corteva Stock	3		3				3			3
Share-based compensation	19		19				19			19
Acquisition of a noncontrolling interest in consolidated subsidiaries	(52)		(37)			(15)	(52)			(37)			(15)
Other-net	(5)					(5)	(8)			(8)	2		(2)
Ending Balance at Jun. 30, 2020	24,801	7	27,891	508	(3,845)	240	20,956	239	0	23,981	580	(3,845)	1
Net income (loss)	(390)			(392)		2	(404)				(404)
Other comprehensive (loss) income	49				49		49					49
Common Dividends	(97)			(97)
Dividends, Preferred Stock							(2)				(2)
Issuance of Corteva Stock	2		2				2			2
Share-based compensation	15		16	(1)			15			16	(1)
Repurchase of common stock	(33)		(15)	(18)
Other-net	(1)		1			(2)	(4)			(4)
Ending Balance at Sep. 30, 2020	24,346	7	27,895	0	(3,796)	240	20,612	239	0	23,995	173	(3,796)	1
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	3,712						3,712
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	3,857						3,857
Beginning Balance at Dec. 31, 2020	25,063	7	27,707	0	(2,890)	239	21,601	239	0	24,049	203	(2,890)	0
Net income (loss)	603			600		3	592				591		1
Other comprehensive (loss) income	(477)				(477)		(477)					(477)
Common Dividends	(97)		(97)
Dividends, Preferred Stock							(2)				(2)
Issuance of Corteva Stock	38		38				38			38
Repurchase of common stock	(350)		(18)	(332)
Other-net	(2)					(2)	(4)			(4)
Ending Balance at Mar. 31, 2021	24,778	7	27,630	268	(3,367)	240	21,748	239	0	24,083	792	(3,367)	1
Beginning Balance at Dec. 31, 2020	25,063	7	27,707	0	(2,890)	239	21,601	239	0	24,049	203	(2,890)	0
Net income (loss)	1,608						1,578
Other comprehensive (loss) income	(755)				(755)		(755)
Ending Balance at Sep. 30, 2021	24,979	7	27,712	666	(3,645)	239	22,523	239	0	24,158	1,771	(3,645)	0
Beginning Balance at Mar. 31, 2021	24,778	7	27,630	268	(3,367)	240	21,748	239	0	24,083	792	(3,367)	1
Net income (loss)	973			970		3	963				963
Other comprehensive (loss) income	122				122		122					122
Common Dividends	(95)			(95)
Dividends, Preferred Stock							(3)				(3)
Issuance of Corteva Stock	28		28				28			28
Share-based compensation	22		23	(1)			22			23	(1)
Repurchase of common stock	(200)			(200)
Other-net	(3)		1	(1)		(3)	(2)			(3)	1
Ending Balance at Jun. 30, 2021	25,625	7	27,682	941	(3,245)	240	22,878	239	0	24,131	1,752	(3,245)	1
Net income (loss)	32			30		2	23				24		(1)
Other comprehensive (loss) income	(400)				(400)		(400)					(400)
Common Dividends	(103)			(103)
Dividends, Preferred Stock							(2)				(2)
Issuance of Corteva Stock	5		5				5			5
Share-based compensation	25		26	(1)			25			26	(1)
Repurchase of common stock	(200)			(200)
Other-net	(5)		(1)	(1)		(3)	(6)			(4)	(2)
Ending Balance at Sep. 30, 2021	24,979	$ 7	$ 27,712	$ 666	$ (3,645)	$ 239	22,523	$ 239	$ 0	$ 24,158	$ 1,771	$ (3,645)	$ 0
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 3,960						$ 3,960

Statement of Stockholders' Equi

Statement of Stockholders' Equity Parentheticals (Parentheticals) - $ / shares	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Common Stock, Dividends, Per Share, Declared	$ 0.14	$ 0.13	$ 0.13	$ 0.13	$ 0.13	$ 0.13
EID [Member] | $4.50 Series Preferred Stock [Member]
Preferred Stock, Dividends Per Share, Declared	1.125	1.125	1.125	1.125	1.125	1.125
EID [Member] | $3.50 Series Preferred Stock [Member]
Preferred Stock, Dividends Per Share, Declared	$ 0.875	$ 0.875	$ 0.875	$ 0.875	$ 0.875	$ 0.875

Summary of Significant Accounti

Summary of Significant Accounting Policies (Notes)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The accompanying unaudited interim Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles in the United States of America ("GAAP") for interim financial information and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair statement of the results for interim periods have been included. Results for interim periods should not be considered indicative of results for a full year. These interim Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and Notes thereto contained in the company’s Annual Report on Form 10-K for the year ended December 31, 2020, collectively referred to as the “2020 Annual Report.” The interim Consolidated Financial Statements include the accounts of the company and all of its subsidiaries in which a controlling interest is maintained. Certain reclassifications of prior year's data have been made to conform to current year's presentation. During the first quarter 2020, the company recorded an increase of $40 million to APIC relating to net assets recorded as transferred as part of the 2019 Internal Reorganizations that were retained. Since 2018, Argentina has been considered a hyper-inflationary economy under U.S. GAAP and therefore the U.S. Dollar (“USD”) is the functional currency for our related subsidiaries. Argentina contributes approximately 4 percent to our annual Sales and EBITDA. We remeasure net monetary assets and translate our financial statements utilizing the official Argentine Peso (“Peso”) to USD exchange rate. The ability to draw down Peso cash balances is limited at this time due to government restrictions and market availability of U.S. Dollars. The devaluation of the Peso relative to the USD over the last several years has resulted in the recognition of exchange losses (refer to Note 6 – Supplementary Information, to the interim Consolidated Financial Statements, and Note 9 – Supplemental Information, to the company's 2020 Annual Report). As of September 30, 2021, a further 10 percent deterioration in the official Peso to USD exchange rate would reduce the USD value of our net monetary assets and negatively impact pre-tax earnings by approximately $20 million. We will continue to assess the implications to our operations and financial reporting.

Recent Accounting Guidance

Recent Accounting Guidance	9 Months Ended
	Sep. 30, 2021
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Guidance	RECENT ACCOUNTING GUIDANCE Recently Adopted Accounting Guidance In December 2019, the FASB issued Accounting Standards Update ("ASU") 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which was part of the FASB’s Simplification Initiative to identify, evaluate, and improve areas of GAAP for which cost and complexity can be reduced, while maintaining or improving the usefulness of the information provided to users of the financial statements. This ASU amends ASC 740, Income Taxes, by removing certain exceptions to the general principles, and clarifying and amending current guidance. The new standard is effective for fiscal years, and periods within those fiscal years, beginning after December 15, 2020. The company adopted this guidance on January 1, 2021 and it did not have a material impact on the company’s financial position, results of operation or cash flows.

Divestitures and Other Transact

Divestitures and Other Transactions	3 Months Ended
	Sep. 30, 2021
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	DIVESTITURES AND OTHER TRANSACTIONS Separation Agreements In connection with the Distributions, DuPont, Corteva, and Dow (together, the “Parties” and each a “Party”) have entered into certain agreements to effect the Separation, provide for the allocation of DowDuPont’s assets, employees, liabilities and obligations (including its investments, property and employee benefits and tax-related assets and liabilities) among the Parties, and provide a framework for Corteva's relationship with Dow and DuPont following the Separations and Distributions (collectively, the "Separation Agreements"). For additional information see Note 13 - Commitments and Contingent Liabilities. DuPont Pursuant to the Separation Agreements, DuPont and Corteva indemnifies the other against certain litigation, environmental, tax, workers' compensation and other liabilities that arose prior to the Corteva Distribution. The term of this indemnification is generally indefinite and includes defense costs and expenses, as well as monetary and non-monetary settlements and judgments. In connection with the recognition of liabilities related to these matters, the company records an indemnification asset when recovery is deemed probable. At September 30, 2021, the indemnification assets are $25 million within accounts and notes receivable - net and $70 million within other assets in the interim Consolidated Balance Sheet. At September 30, 2021, the indemnification liabilities are $76 million within other noncurrent obligations in the interim Consolidated Balance Sheet. Dow Pursuant to the Separation Agreements, Dow and Corteva indemnifies the other against certain litigation, environmental, tax and other liabilities that arose prior to the Corteva Distribution. The term of this indemnification is generally indefinite and includes defense costs and expenses, as well as monetary and non-monetary settlements and judgments. In connection with the recognition of liabilities related to these matters, the company records an indemnification asset when recovery is deemed probable. At September 30, 2021, the indemnification liabilities are $54 million within accrued and other current liabilities and $14 million within other noncurrent obligations in the interim Consolidated Balance Sheet.

Revenue (Notes)

Revenue (Notes)	9 Months Ended
	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer	REVENUE Revenue Recognition Products Substantially all of Corteva's revenue is derived from product sales. Product sales consist of sales of Corteva's products to farmers, distributors, and manufacturers. Corteva considers purchase orders, which in some cases are governed by master supply agreements, to be a contract with a customer. Contracts with customers are considered to be short-term when the time between order confirmation and satisfaction of the performance obligations is equal to or less than one year. However, the company has some long-term contracts which can span multiple years. Revenue from product sales is recognized when the customer obtains control of the company's product, which occurs at a point in time according to shipping terms. Payment terms are generally less than one year from invoicing. The company elected the practical expedient and does not adjust the promised amount of consideration for the effects of a significant financing component when the company expects it will be one year or less between when a customer obtains control of the company's product and when payment is due. The company has elected to recognize shipping and handling activities when control has transferred to the customer as an expense in cost of goods sold. Taxes collected from customers relating to product sales and remitted to governmental authorities are excluded from revenues. In addition, the company elected the practical expedient to expense any costs to obtain contracts as incurred, as the amortization period for these costs would have been one year or less. The transaction price includes estimates of variable consideration, such as rights of return, rebates, and discounts, that are reductions in revenue. All estimates are based on the company's historical experience, anticipated performance, and the company's best judgment at the time the estimate is made. Estimates of variable consideration included in the transaction price utilize either the expected value method or most likely amount depending on the nature of the variable consideration. These estimates are reassessed each reporting period and are included in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur upon resolution of uncertainty associated with the variable consideration. The majority of contracts have a single performance obligation satisfied at a point in time and the transaction price is stated in the contract, usually as quantity times price per unit. For contracts with multiple performance obligations, the company allocates the transaction price to each performance obligation based on the relative standalone selling price. The standalone selling price is the observable price which depicts the price as if sold to a similar customer in similar circumstances. Licenses of Intellectual Property Corteva enters into licensing arrangements with customers under which it licenses its intellectual property. Revenue from the majority of intellectual property licenses is derived from sales-based royalties. Revenue for licensing agreements that contain sales-based royalties is recognized at the later of (i) when the subsequent sale occurs or (ii) when the performance obligation to which some or all of the royalty has been allocated is satisfied. Remaining Performance Obligations Remaining performance obligations represent the transaction price allocated to unsatisfied or partially unsatisfied performance obligations. The company applies the practical expedient to disclose the transaction price allocated to the remaining performance obligations for only those contracts with an original duration of one year or more. The transaction price allocated to remaining performance obligations with an original duration of more than one year related to material rights granted to customers for contract renewal options were $122 million, $115 million and $114 million at September 30, 2021, December 31, 2020 and September 30, 2020, respectively. The company expects revenue to be recognized for the remaining performance obligations over the next one year to six years. Contract Balances Contract liabilities primarily reflect deferred revenue from prepayments under contracts with customers where the company receives advance payments for products to be delivered in future periods. Corteva classifies deferred revenue as current or noncurrent based on the timing of when the company expects to recognize revenue. Contract assets primarily include amounts related to conditional rights to consideration for completed performance not yet invoiced. Accounts receivable are recorded when the right to consideration becomes unconditional. Contract Balances September 30, 2021 December 31, 2020 September 30, 2020 (In millions) Accounts and notes receivable - trade 1 $ 4,744 $ 3,917 $ 4,638 Contract assets - current 2 $ 24 $ 22 $ 21 Contract assets - noncurrent 3 $ 60 $ 54 $ 52 Deferred revenue - current $ 692 $ 2,662 $ 402 Deferred revenue - noncurrent 4 $ 111 $ 116 $ 106 1. Included in accounts and notes receivable - net in the interim Consolidated Balance Sheets. 2. Included in other current assets in the interim Consolidated Balance Sheets. 3. Included in other assets in the interim Consolidated Balance Sheets. 4. Included in other noncurrent obligations in the interim Consolidated Balance Sheets. Revenue recognized during the nine months ended September 30, 2021 and 2020 from amounts included in deferred revenue at the beginning of the period was $2,454 million and $2,195 million, respectively. Disaggregation of Revenue Corteva's operations are classified into two reportable segments: Seed and Crop Protection. The company disaggregates its revenue by major product line and geographic region, as the company believes it best depicts the nature, amount and timing of its revenue and cash flows. Net sales by major product line are included below: Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Corn $ 437 $ 303 $ 4,505 $ 4,224 Soybean 157 116 1,494 1,382 Other oilseeds 94 62 661 529 Other 50 42 350 381 Seed 738 523 7,010 6,516 Herbicides 782 583 2,737 2,315 Insecticides 416 395 1,261 1,218 Fungicides 339 261 911 714 Other 96 101 257 247 Crop Protection 1,633 1,340 5,166 4,494 Total $ 2,371 $ 1,863 $ 12,176 $ 11,010 . Sales are attributed to geographic regions based on customer location. Net sales by geographic region and segment are included below: Seed Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 North America 1 $ 168 $ 97 $ 4,482 $ 4,290 EMEA 2 153 117 1,398 1,262 Latin America 334 246 842 668 Asia Pacific 83 63 288 296 Total $ 738 $ 523 $ 7,010 $ 6,516 Crop Protection Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 North America 1 $ 422 $ 390 $ 1,693 $ 1,528 EMEA 2 237 198 1,304 1,163 Latin America 763 559 1,361 1,086 Asia Pacific 211 193 808 717 Total $ 1,633 $ 1,340 $ 5,166 $ 4,494 1. Represents U.S. & Canada. 2. Europe, Middle East, and Africa ("EMEA").

Restructuring and Asset Related

Restructuring and Asset Related Charges	9 Months Ended
	Sep. 30, 2021
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	RESTRUCTURING AND ASSET RELATED CHARGES - NET 2021 Restructuring Actions As discussed in the 2020 Annual Report, on February 1, 2021, Corteva approved restructuring actions designed to right-size and optimize its footprint and organizational structure according to the business needs in each region with the focus on driving continued cost improvement and productivity. As a result of these actions, the company expects to record total pre-tax restructuring charges of approximately $150 million, comprised of approximately $65 million of severance and related benefit costs, $35 million of asset related charges, $10 million of asset retirement obligations and $40 million of costs related to contract terminations (contract terminations includes early lease terminations). The restructuring actions associated with this charge are expected to be substantially complete in 2021. The charges related to the 2021 Restructuring Actions related to the segments, as well as corporate expenses, were as follows: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2021 2021 Seed $ 4 $ 21 Crop Protection 4 41 Corporate expenses 9 65 Total $ 17 $ 127 The following table is a summary of charges incurred related to 2021 Restructuring Actions for the three and nine months ended September 30, 2021: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2021 2021 Severance and related benefit costs $ 9 $ 58 Asset related charges 7 29 Contract termination charges 1 40 Total restructuring and asset charges - net $ 17 $ 127 A reconciliation of the December 31, 2020 to the September 30, 2021 liability balances related to the 2021 Restructuring Actions is summarized below: (In millions) Severance and Related Benefit Costs Asset Related 1 Contract Termination 2 Total Balance at December 31, 2020 $ — $ — $ — $ — Charges to income from continuing operations 58 29 40 127 Payments (14) — (26) (40) Asset write-offs — (29) — (29) Balance at September 30, 2021 $ 44 $ — $ 14 $ 58 1. In addition, the company has a liability recorded for asset retirement obligations of $6 million as of September 30, 2021. 2. The liability for contract terminations includes lease obligations. The cash impact of these obligations will be substantially complete by 2022. Execute to Win Productivity Program During the first quarter of 2020, Corteva approved restructuring actions designed to improve productivity through optimizing certain operational and organizational structures primarily related to the Execute to Win Productivity Program. Through the third quarter of 2021, the company recorded net pre-tax restructuring charges of $186 million inception-to-date under the Execute to Win Productivity Program, consisting of $123 million of asset related charges and $63 million of severance and related benefit costs. The company does not anticipate any additional material charges from the Execute to Win Productivity Program as actions associated with this charge were substantially complete by the end of 2020. The Execute to Win Productivity Program charges related to the segments, as well as corporate expenses, were as follows: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2021 2020 2021 2020 Seed $ — $ — $ — $ 3 Crop Protection 4 30 10 85 Corporate expenses — — — 46 Total $ 4 $ 30 $ 10 $ 134 The following table is a summary of charges incurred related to the Execute to Win Productivity Program for the three and nine months ended September 30, 2021 and 2020: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2021 2020 2021 2020 Severance and related benefit costs $ — $ — $ — $ 46 Asset related charges 4 30 10 88 Total restructuring and asset related charges - net $ 4 $ 30 $ 10 $ 134 A reconciliation of the December 31, 2020 to the September 30, 2021 liability balances related to the Execute to Win Productivity Program is summarized below: (In millions) Severance and Related Benefit Costs Asset Related 1 Total Balance at December 31, 2020 $ 53 $ 3 $ 56 Charges to income from continuing operations — 10 10 Payments (24) (3) (27) Asset write-offs — (10) (10) Balance at September 30, 2021 $ 29 $ — $ 29 1. In addition, the company has a liability recorded for asset retirement obligations of $18 million as of September 30, 2021. Other Asset Related Charges During the three and nine months ended September 30, 2021, the company recognized $5 million and $124 million, respectively, in restructuring and asset related charges - net in the interim Consolidated Statements of Operations, from non-cash accelerated prepaid royalty amortization expense related to Roundup Ready 2 Yield ® and Roundup Ready 2 Xtend ® herbicide tolerance traits.

Supplementary Information

Supplementary Information	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Additional Financial Information Disclosure [Text Block]	SUPPLEMENTARY INFORMATION Other Income - Net Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Interest income $ 19 $ 11 $ 58 $ 38 Equity in (losses) / earnings of affiliates - net (1) — 4 (3) Net gain (loss) on sales of businesses and other assets 1 1 1 2 (29) Net exchange gains / (losses) 2 2 (67) (47) (127) Non-operating pension and other post employment benefit credit 3 326 93 979 275 Miscellaneous income (expense) - net 4 31 (8) 17 (34) Other income - net $ 378 $ 30 $ 1,013 $ 120 1. The nine months ended September 30, 2020 includes a loss of $(53) million relating to the sale of the La Porte site, for which the company signed an agreement in 2020, and closed during the first quarter of 2021. 2. Includes net pre-tax exchange losses of $(16) million and $(53) million associated with the devaluation of the Argentine peso for the three and nine months ended September 30, 2021, respectively, and $(26) million and $(56) million for the three and nine months ended September 30, 2020, respectively. 3. Includes non-service related components of net periodic benefit credits (costs) (interest cost, expected return on plan assets, amortization of unrecognized gain (loss), amortization of prior service benefit and settlement loss). 4. Miscellaneous expense - net for the three and nine months ended September 30, 2021 and 2020 includes losses on sale of receivables, tax indemnification adjustments related to changes in indemnification balances as a result of the application of the terms of the Tax Matters Agreement between Corteva and Dow and/or DuPont, and other items. Miscellaneous expense - net for the three and nine months ended September 30, 2021 also includes a gain from remeasurement of an equity investment and for the nine months ended September 30, 2021 includes realized losses on sale of available-for-sale securities. The following table summarizes the impacts of the company's foreign currency hedging program on the company's results of operations. The company routinely uses foreign currency exchange contracts to offset its net exposures, by currency, related to the foreign currency-denominated monetary assets and liabilities. The objective of this program is to maintain an approximately balanced position in foreign currencies in order to minimize, on an after-tax basis, the effects of exchange rate changes on net monetary asset positions. The hedging program gains (losses) are largely taxable (tax deductible) in the U.S., whereas the offsetting exchange gains (losses) on the remeasurement of the net monetary asset positions are often not taxable (tax deductible) in their local jurisdictions. The net pre-tax exchange gains (losses) are recorded in other income - net and the related tax impact is recorded in provision for income taxes on continuing operations in the interim Consolidated Statements of Operations. (In millions) Three Months Ended Nine Months Ended September 30, 2021 2020 2021 2020 Subsidiary Monetary Position Losses Pre-tax exchange losses $ (32) $ (61) $ (47) $ (300) Local tax benefits / (expenses) 3 16 (11) 44 Net after-tax impact from subsidiary exchange losses $ (29) $ (45) $ (58) $ (256) Hedging Program Gains Pre-tax exchange gains (losses) $ 34 $ (6) $ — $ 173 Tax (expenses) / benefits (8) 2 — (41) Net after-tax impact from hedging program exchange gains (losses) $ 26 $ (4) $ — $ 132 Total Exchange Losses Pre-tax exchange gains (losses) $ 2 $ (67) $ (47) $ (127) Tax (expenses) benefits (5) 18 (11) 3 Net after-tax exchange losses $ (3) $ (49) $ (58) $ (124) Cash, cash equivalents and restricted cash equivalents The following table provides a reconciliation of cash and cash equivalents and restricted cash equivalents presented in the interim Consolidated Balance Sheets to the total cash, cash equivalents and restricted cash equivalents presented in the interim Consolidated Statements of Cash Flows. Corteva classifies restricted cash equivalents as current or noncurrent based on the nature of the restrictions, which are included in other current assets and other assets, respectively, in the interim Consolidated Balance Sheets. (In millions) September 30, 2021 December 31, 2020 September 30, 2020 Cash and cash equivalents $ 2,779 $ 3,526 $ 2,768 Restricted cash equivalents 361 347 354 Total cash, cash equivalents and restricted cash equivalents $ 3,140 $ 3,873 $ 3,122

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	INCOME TAXES For periods between the Merger Effectiveness Time and the Corteva Distribution, Corteva and its subsidiaries were included in DowDuPont's consolidated federal income tax group and consolidated tax return. Generally, the consolidated tax liability of the DowDuPont U.S. tax group for each year was apportioned among the members of the consolidated group based on each member’s separate taxable income. Corteva, DuPont and Dow intend that to the extent Federal and/or State corporate income tax liabilities are reduced through the utilization of tax attributes of the other, settlement of any receivable and payable generated from the use of the other party’s sub-group attributes will be in accordance with a tax matters agreement. See Note 3 - Divestitures and Other Transactions, for further information related to indemnifications between Corteva, DuPont and Dow. Each year the company files hundreds of tax returns in the various national, state and local income taxing jurisdictions in which it operates. These tax returns are subject to examination and possible challenge by the tax authorities. Positions challenged by the tax authorities may be settled or appealed by the company. As a result, there is an uncertainty in income taxes recognized in the company's financial statements in accordance with accounting for income taxes and accounting for uncertainty in income taxes. The ultimate resolution of such uncertainties is not expected to have a material impact on the company's results of operations. During the three and nine months ended September 30, 2021, the company recognized $32 million and $58 million, respectively, of net tax benefits to provision for income taxes on continuing operations associated with changes in accruals for certain prior year tax positions in various jurisdictions, including a $22 million tax benefit associated with U.S. research and development tax credits. During the nine months ended September 30, 2020, the company recognized a tax benefit of $51 million to provision for income taxes on continuing operations related to a return to accrual adjustment associated with an elective change in accounting method for the 2019 tax year impact of the 2017 Tax Cuts and Jobs Act 's (“The Act”) foreign tax provisions. During the nine months ended September 30, 2020 the company recognized a tax benefit of $14 million to provision for income taxes on continuing operations related to a return to accrual adjustment to reflect a change in estimate on the impact of a tax law enactment in a foreign jurisdiction. The company routinely uses foreign currency exchange contracts to offset its net exposures, by currency, related to the foreign currency-denominated monetary assets and liabilities. The objective of the program, which resides in the U.S., is to maintain an approximately balanced position in foreign currencies in order to minimize, on an after-tax basis, the effects of exchange rate changes on net monetary asset positions, which can drive material impacts on the company's effective tax rate. For further discussion of pre-tax and after-tax impacts of the company's foreign currency hedging program and net monetary asset programs, refer to Note 6 - Supplementary Information.

Earnings Per Share (Notes)

Earnings Per Share (Notes)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	EARNINGS PER SHARE OF COMMON STOCK The following tables provide earnings per share calculations for the periods indicated below: Net Income (Loss) for Earnings Per Share Calculations - Basic and Diluted Three Months Ended Nine Months Ended September 30, (In millions) 2021 2020 2021 2020 Income (loss) from continuing operations after income taxes $ 36 $ (390) $ 1,667 $ 657 Net income attributable to continuing operations noncontrolling interests 2 2 8 18 Income (loss) from continuing operations available to Corteva common stockholders 34 (392) 1,659 639 (Loss) income from discontinued operations available to Corteva common stockholders (4) — (59) 1 Net income (loss) available to common stockholders $ 30 $ (392) $ 1,600 $ 640 Earnings (Loss) Per Share Calculations - Basic Three Months Ended Nine Months Ended September 30, (Dollars per share) 2021 2020 2021 2020 Earnings (loss) per share of common stock from continuing operations $ 0.05 $ (0.52) $ 2.25 $ 0.85 Loss per share of common stock from discontinued operations (0.01) — (0.08) — Earnings (loss) per share of common stock $ 0.04 $ (0.52) $ 2.17 $ 0.85 Earnings (Loss) Per Share Calculations - Diluted Three Months Ended Nine Months Ended September 30, (Dollars per share) 2021 2020 2021 2020 Earnings (loss) per share of common stock from continuing operations $ 0.05 $ (0.52) $ 2.23 $ 0.85 Loss per share of common stock from discontinued operations (0.01) — (0.08) — Earnings (loss) per share of common stock $ 0.04 $ (0.52) $ 2.15 $ 0.85 Share Count Information Three Months Ended Nine Months Ended September 30, (Shares in millions) 2021 2020 2021 2020 Weighted-average common shares - basic 733.8 749.5 738.1 749.5 Plus dilutive effect of equity compensation plans 1 5.7 — 5.9 2.5 Weighted-average common shares - diluted 739.5 749.5 744.0 752.0 Potential shares of common stock excluded from EPS calculations 2 3.0 14.6 3.1 9.7 1. Diluted earnings per share considers the impact of potentially dilutive securities except in periods in which there is a loss because the inclusion of the potential common shares would have an anti-dilutive effect. 2. These outstanding potential shares of common stock relating to stock options, restricted stock units and performance-based restricted stock units were excluded from the calculation of diluted earnings per share because the effect of including them would have been anti-dilutive.

Accounts and Notes Receivable (

Accounts and Notes Receivable (Notes)	9 Months Ended
	Sep. 30, 2021
Accounts and Notes Receivable [Abstract]
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	ACCOUNTS AND NOTES RECEIVABLE - NET (In millions) September 30, 2021 December 31, 2020 September 30, 2020 Accounts receivable – trade 1 $ 3,336 $ 3,754 $ 3,231 Notes receivable – trade 1,2 1,408 163 1,407 Other 3 1,074 1,009 989 Total accounts and notes receivable - net $ 5,818 $ 4,926 $ 5,627 1. Accounts receivable – trade and notes receivable - trade are net of allowances of $210 million at September 30, 2021, $208 million at December 31, 2020, and $210 million at September 30, 2020. Allowances are equal to the estimated uncollectible amounts and are based on the expected credit losses and were developed using a loss-rate method. 2. Notes receivable – trade primarily consists of receivables for deferred payment loan programs for the sale of seed products to customers. These loans have terms of one year or less and are primarily concentrated in North America. The company maintains a rigid pre-approval process for extending credit to customers in order to manage overall risk and exposure associated with credit losses. As of September 30, 2021, December 31, 2020, and September 30, 2020 there were no significant impairments related to current loan agreements. 3. Other includes receivables in relation to indemnification assets, value added tax, general sales tax and other taxes. No individual group represents more than 10 percent of total receivables. In addition, Other includes amounts due from nonconsolidated affiliates of $84 million, $106 million, and $92 million as of September 30, 2021, December 31, 2020, and September 30, 2020, respectively. Accounts and notes receivable are carried at the expected amount to be collected, which approximates fair value. The company establishes the allowance for doubtful receivables using a loss-rate method where the loss rate is developed using past events, historical experience, current conditions and forecasts that affect the collectability of the financial assets. The following table summarizes changes in the allowance for doubtful receivables for the nine months ended September 30, 2021 and 2020: (In millions) 2020 Balance at December 31, 2019 $ 174 Net provision for credit losses 1 54 Write-offs charged against allowance / other 1 (18) Balance at September 30, 2020 $ 210 2021 Balance at December 31, 2020 $ 208 Net provision for credit losses (7) Write-offs charged against allowance / other 9 Balance at September 30, 2021 $ 210 1. Prior year classifications in the changes in the allowance for doubtful receivables have been revised. Revisions did not impact the amount of the provision or the allowance for doubtful receivables recorded in the interim Consolidated Statements of Operations or the interim Consolidated Balance Sheets. The company enters into various factoring agreements with third-party financial institutions to sell its trade receivables under both recourse and non-recourse agreements in exchange for cash proceeds. These financing arrangements result in a transfer of the company's receivables and risks to the third-party. As these transfers qualify as true sales under the applicable accounting guidance, the receivables are derecognized from the interim Consolidated Balance Sheets upon transfer, and the company receives a payment for the receivables from the third-party within a mutually agreed upon time period. For arrangements involving an element of recourse, which is typically provided through a guarantee of accounts in the event of customer default, the guarantee obligation is measured using market data from similar transactions and reported as a current liability in the interim Consolidated Balance Sheets. Trade receivables sold under these agreements were $70 million and $257 million for the three and nine months ended September 30, 2021, respectively, and $44 million and $221 million for the three and nine months ended September 30, 2020, respectively. The trade receivables sold that remained outstanding under these agreements which include an element of recourse as of September 30, 2021, December 31, 2020, and September 30, 2020 were $173 million, $157 million, and $178 million, respectively. The net proceeds received are included in cash used for operating activities in the interim Consolidated Statements of Cash Flows. The difference between the carrying amount of the trade receivables sold and the sum of the cash received is recorded as a loss on sale of receivables in other income - net in the interim Consolidated Statements of Operations. The loss on sale of receivables was $11 million and $54 million for the three and nine months ended September 30, 2021, respectively, and

Inventories

Inventories	9 Months Ended
	Sep. 30, 2021
Inventory Disclosure [Abstract]
Inventory Disclosure [Text Block]	INVENTORIES (In millions) September 30, 2021 December 31, 2020 September 30, 2020 Finished products $ 1,871 $ 2,584 $ 2,074 Semi-finished products 2,028 1,813 1,878 Raw materials and supplies 518 485 422 Total inventories $ 4,417 $ 4,882 $ 4,374

Other Intangible Assets

Other Intangible Assets	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets Disclosure [Text Block]	OTHER INTANGIBLE ASSETS The gross carrying amounts and accumulated amortization of other intangible assets by major class are as follows: (In millions) September 30, 2021 December 31, 2020 September 30, 2020 Gross Accumulated Net Gross Accumulated Net Gross Accumulated Net Intangible assets subject to amortization (Definite-lived): Germplasm $ 6,265 $ (507) $ 5,758 $ 6,265 $ (317) $ 5,948 $ 6,265 $ (253) $ 6,012 Customer-related 1,956 (460) 1,496 1,984 (380) 1,604 1,966 (352) 1,614 Developed technology 1,485 (641) 844 1,451 (525) 926 1,463 (499) 964 Trademarks/trade names 1 2,012 (152) 1,860 2,019 (99) 1,920 161 (86) 75 Favorable supply contracts 475 (373) 102 475 (302) 173 475 (279) 196 Other 2 407 (252) 155 405 (239) 166 405 (233) 172 Total other intangible assets with finite lives 12,600 (2,385) 10,215 12,599 (1,862) 10,737 10,735 (1,702) 9,033 Intangible assets not subject to amortization (Indefinite-lived): IPR&D 10 — 10 10 — 10 10 — 10 Trade name 1 1,871 — 1,871 Total other intangible assets 10 — 10 10 — 10 1,881 — 1,881 Total $ 12,610 $ (2,385) $ 10,225 $ 12,609 $ (1,862) $ 10,747 $ 12,616 $ (1,702) $ 10,914 1. Beginning on October 1, 2020, the company changed its indefinite life assertion of its trade name asset to definite lived with a useful life of 25 years. This change is the result of the launch of Brevant TM seed in the retail channel in the U.S. Prior to changing the useful life of the trade name asset, the company tested the asset for impairment under ASC 350- Intangibles, Goodwill and Other, concluding the asset was not impaired. 2. Primarily consists of sales and farmer networks, marketing and manufacturing alliances and noncompetition agreements. The aggregate pre-tax amortization expense from continuing operations for definite-lived intangible assets was $180 million and $543 million for the three and nine months ended September 30, 2021, respectively, and $162 million and $501 million for the three and nine months ended September 30, 2020, respectively. The current estimated aggregate pre-tax amortization expense from continuing operations for the remainder of 2021 and each of the next five years is approximately $178 million, $700 million, $620 million, $606 million, $569 million and $558 million, respectively.

Short-Term Borrowings, Long-Ter

Short-Term Borrowings, Long-Term Debt and Available Credit Facilities	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	SHORT-TERM BORROWINGS, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES The following tables summarize Corteva's short-term borrowings and finance lease obligations: Short-term borrowings and finance lease obligations (In millions) September 30, 2021 December 31, 2020 September 30, 2020 Commercial paper $ 802 $ — $ 926 Repurchase facility 550 — 1,175 Other loans - various currencies 18 1 39 Long-term debt payable within one year 1 1 1 Finance lease obligations payable within one year 1 1 1 Total short-term borrowings and finance lease obligations $ 1,372 $ 3 $ 2,142 The estimated fair value of the company's short-term borrowings, including interest rate financial instruments, was determined using Level 2 inputs within the fair value hierarchy. Based on quoted market prices for the same or similar issues, or on current rates offered to the company for debt of the same remaining maturities, the fair value of the company's short-term borrowings and finance lease obligations was approximately carrying value. The fair value of the company’s long-term borrowings, including debt due within one year, was $1,134 million, $1,168 million, and $1,164 million as of September 30, 2021, December 31, 2020, and September 30, 2020, respectively, and was determined using quoted market prices for the same or similar issues, or current rates offered to the company for debt of the same remaining maturities (Level 2 inputs). Debt Offering In May 2020, EID issued $500 million of 1.70 percent Senior Notes due 2025 and $500 million of 2.30 percent Senior Notes due 2030 (the May 2020 Debt Offering). The proceeds of this offering are intended to be used for general corporate purposes. Repurchase Facility In February 2021, the company entered into a new committed receivable repurchase facility of up to $1 billion (the "2021 Repurchase Facility") which expires in December 2021. Under the 2021 Repurchase Facility, Corteva may sell a portfolio of available and eligible outstanding customer notes receivables to participating institutions and simultaneously agree to repurchase at a future date. The 2021 Repurchase Facility is considered a secured borrowing with the customer notes receivables inclusive of those that are sold and repurchased, equal to 105 percent of the outstanding amounts borrowed utilized as collateral. Borrowings under the 2021 Repurchase Facility have an interest rate of LIBOR+0.85 percent. As of September 30, 2021, $578 million of notes receivable, recorded in accounts and notes receivable - net in the interim Consolidated Balance Sheets, were pledged as collateral against outstanding borrowings under the 2021 Repurchase Facility of $550 million, recorded in short-term borrowings and finance lease obligations in the interim Consolidated Balance Sheet. Revolving Credit Facilities In November 2018, EID entered into a $3 billion 5-year revolving credit facility and a $3 billion 3-year revolving credit facility (the “Revolving Credit Facilities”). The Revolving Credit Facilities became effective in May 2019. Corteva, Inc. became a party at the time of the Corteva Distribution. In May 2021, the company entered into an amendment that extended the maturity date of the 3-year revolving credit facility from May 2022 to May 2023. Other than the change in maturity date, there were no material modifications to the terms of the credit facility. The Revolving Credit Facilities may serve as a substitute to the company's commercial paper program, and can be used, from time to time, for general corporate purposes including, but not limited to, the funding of seasonal working capital needs. The Revolving Credit Facilities contain customary representations and warranties, affirmative and negative covenants and events of default that are typical for companies with similar credit ratings. Additionally, the Revolving Credit Facilities contain a financial covenant requiring that the ratio of total indebtedness to total capitalization for Corteva and its consolidated subsidiaries not exceed 0.60. In March 2020, the company drew down $500 million under the $3 billion 3-year revolving credit facility as a result of the volatility and increased borrowing costs of commercial paper resulting from the unstable market conditions caused by the COVID-19 pandemic and repaid that borrowing in full in June 2020. There were no additional borrowings and the unused commitments under the 3-year revolving credit facility were $3 billion as of September 30, 2021.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	COMMITMENTS AND CONTINGENT LIABILITIES Guarantees Indemnifications In connection with acquisitions and divestitures, the company has indemnified respective parties against certain liabilities that may arise in connection with these transactions and business activities prior to the completion of the transactions. The term of these indemnifications, which typically pertain to environmental, tax and product liabilities, is generally indefinite. In addition, the company indemnifies its duly elected or appointed directors and officers to the fullest extent permitted by Delaware law, against liabilities incurred as a result of their activities for the company, such as adverse judgments relating to litigation matters. If the indemnified party were to incur a liability or have a liability increase as a result of a successful claim, pursuant to the terms of the indemnification, the company would be required to reimburse the indemnified party. The maximum amount of potential future payments is generally unlimited. See pages 24 and 25 for additional information relating to the indemnification obligations under the Chemours Separation Agreement and the Corteva Separation Agreement. Obligations for Customers and Other Third Parties The company has directly guaranteed various debt obligations under agreements with third parties related to customers and other third parties. At September 30, 2021, December 31, 2020 and September 30, 2020, the company had directly guaranteed $107 million, $94 million, and $96 million, respectively, of such obligations. These amounts represent the maximum potential amount of future (undiscounted) payments that the company could be required to make under the guarantees in the event of default by the guaranteed party. All of the maximum future payments at September 30, 2021 had terms less than one year. The maximum future payments include $22 million, $17 million and $20 million at September 30, 2021, December 31, 2020 and September 30, 2020, respectively, of guarantees related to the various factoring agreements that the company enters into with third-party financial institutions to sell its trade receivables. See Note 9 - Accounts and Notes Receivable - Net, for additional information. The maximum future payments also include agreements with lenders to establish programs that provide financing for select customers. The terms of the guarantees are equivalent to the terms of the customer loans that are primarily made to finance customer invoices. The total amounts owed from customers to the lenders relating to these agreements was $615 million, $16 million and $637 million at September 30, 2021, December 31, 2020 and September 30, 2020, respectively. The company assesses the payment/performance risk by assigning default rates based on the duration of the guarantees. These default rates are assigned based on the external credit rating of the counterparty or through internal credit analysis and historical default history for counterparties that do not have published credit ratings. For counterparties without an external rating or available credit history, a cumulative average default rate is used. Indemnifications under Separation Agreements The company has entered into various agreements where the company is indemnified for certain liabilities. In connection with the recognition of liabilities related to these matters, the company records an indemnification asset when recovery is deemed probable. See Note 3 - Divestitures and Other Transactions, to the interim Consolidated Financial Statements for additional information related to indemnifications between Corteva, DuPont and Dow. Chemours/Performance Chemicals Pursuant to the Chemours Separation Agreement resulting from the 2015 spin-off of the Performance Chemicals segment from Historical DuPont, Chemours indemnifies the company against certain litigation, environmental, workers' compensation and other liabilities that arose prior to the distribution. The term of this indemnification is generally indefinite and includes defense costs and expenses, as well as monetary and non-monetary settlements and judgments. In connection with the recognition of liabilities related to these matters, the company records an indemnification asset when recovery is deemed probabl e. In 2017, the Chemours Separation Agreement was amended to provide for a limited sharing of potential future liabilities related to alleged historical releases of perfluorooctanoic acids and its ammonium salts (“PFOA”) for a five-year period that began on July 6, 2017. In addition, in 2017, Chemours and EID settled multi-district litigation in the U.S. District Court for the Southern District of Ohio (“Ohio MDL”), resolving claims of about 3,550 plaintiffs alleging injury from exposure to PFOA in drinking water as a result of the historical manufacture or use of PFOA at the Washington Works plant outside Parkersburg, West Virginia. This plant was previously owned and/or operated by the performance chemicals segment of EID and is now owned and/or operated by Chemours. On May 13, 2019, Chemours filed suit in the Delaware Court of Chancery against DuPont, EID, and Corteva, seeking, among other things, to limit its responsibility for the litigation and environmental liabilities allocated to and assumed by Chemours under the Chemours Separation Agreement (the “Delaware Litigation”). On March 30, 2020, the Court of Chancery granted a motion to dismiss. On December 15, 2020, the Delaware Supreme Court affirmed the judgment of the Court of Chancery. Meanwhile, a confidential arbitration process regarding the same and other claims had proceeded (the “Pending Arbitration”). On January 22, 2021, Chemours, DuPont, Corteva and EID entered into a binding memorandum of understanding containing a settlement to resolve legal disputes originating from the Delaware Litigation and Pending Arbitration, and to establish a cost sharing arrangement and escrow account to be used to support and manage potential future legacy per- and polyfluoroalkyl substances ("PFAS") liabilities arising out of pre-July 1, 2015 conduct (the “MOU”). The MOU replaces the 2017 amendment to the Chemours Separation Agreement. According to the terms of the cost sharing arrangement within the MOU, Corteva and DuPont together, on one hand, and Chemours, on the other hand, agreed to a 50-50 split of certain qualified expenses related to PFAS liabilities incurred over a term not to exceed twenty years or $4 billion of qualified spend and escrow account contributions (see below for discussion of escrow account) in the aggregate. DuPont’s and Corteva’s 50% share under the MOU will be limited to $2 billion, including qualified expenses and escrow contributions. These expenses and escrow account contributions will be subject to the existing Letter Agreement, under which DuPont and Corteva will each bear 50% of the first $300 million (up to $150 million each), and thereafter DuPont bears 71% and Corteva bears the remaining 29%. In order to support and manage any potential future PFAS liabilities, the parties have also agreed to establish an escrow account ("MOU Escrow Account"). The MOU provides that (1) no later than each of September 30, 2021 and September 30, 2022, Chemours shall deposit $100 million into an escrow account and DuPont and Corteva shall together deposit $100 million in the aggregate into an escrow account and (2) no later than September 30 of each subsequent year through and including 2028, Chemours shall deposit $50 million into an escrow account and DuPont and Corteva shall together deposit $50 million in the aggregate into an escrow account. Subject to the terms and conditions set forth in the MOU, each party may be permitted to defer funding in any year (excluding 2021). Over this period, Chemours will deposit a total of $500 million in the account and DuPont and Corteva will deposit an additional $500 million pursuant to the terms of the Letter Agreement. Additionally, if on December 31, 2028, the balance of the escrow account (including interest) is less than $700 million, Chemours will make 50% of the deposits and DuPont and Corteva together will make 50% of the deposits necessary to restore the balance of the escrow account to $700 million. Such payments will be made in a series of consecutive annual equal installments commencing on September 30, 2029 pursuant to the escrow account replenishment terms as set forth in the MOU. The MOU provides that no withdrawals from the MOU Escrow Account can be made before year six, except to fund mutually agreed upon third-party settlements in excess of $125 million. Starting with year six, withdrawals can only be made to fund qualified spend if the parties’ aggregate qualified spend in that particular year is greater than $200 million. Beginning with year 11, the amounts in the MOU Escrow Account can be used to fund any qualified spend. Restricted cash classified as noncurrent at September 30, 2021 is related to the MOU Escrow Account. During the three months ended September 30, 2021, the company contributed its initial deposit into the MOU Escrow Account, which is classified as noncurrent restricted cash equivalents and is included in other assets in the interim Consolidated Balance Sheets. After the term of this arrangement, Chemours’ indemnification obligations under the original 2015 Chemours Separation Agreement, would continue unchanged, subject in each case to certain exceptions set out in the MOU. Under the MOU, Chemours waived specified claims regarding the construct of its 2015 spin-off transaction, and the parties will dismiss the Pending Arbitration regarding those claims. Additionally, the parties have agreed to resolve the Ohio MDL PFOA personal injury litigation (as discussed below). The parties are expected to cooperate in good faith to enter into additional agreements reflecting the terms set forth in the MOU. During the three and nine months ended September 30, 2021, the company recorded charges of $8 million and $45 million, respectively, to (loss) income from discontinued operations after income taxes in the interim Consolidated Statement of Operations, related to the MOU. The charges in the nine months ended September 30, 2021 primarily relate to an increase in the environmental remediation accrual for Chemours' Fayetteville Works facility for estimated costs for on-site surface water and groundwater remediation to address and abate PFAS discharges arising out of pre-July 1, 2015 conduct. The increase is the result of further detailed engineering and design work related to Chemours’ environmental remediation activities at the site under the Consent Order between Chemours and the North Carolina Department of Environmental Quality. Corteva Separation Agreement On April 1, 2019, in connection with the Dow Distribution, Corteva, DuPont and Dow entered into the Corteva Separation Agreement, the Tax Matters Agreement, the Employee Matters Agreement, and certain other agreements (collectively, the “Corteva Separation Agreements”). The Corteva Separation Agreements allocate among Corteva, DuPont and Dow certain liabilities and obligations among the parties and provides for indemnification obligation among the parties. Under the Corteva Separation Agreements, DuPont will indemnify Corteva against certain litigation, environmental, workers' compensation and other liabilities that arose prior to the Corteva Distribution and Dow indemnifies Corteva against certain litigation and other liabilities that relate to the Historical Dow business, but were transferred over as part of the common control combination with DAS, and Corteva indemnifies DuPont and Dow for certain liabilities. The term of this indemnification is generally indefinite with exceptions, and includes defense costs and expenses, as well as monetary and non-monetary settlements and judgments. See Note 3 - Divestitures and Other Transactions, to the interim Consolidated Financial Statements for additional information relating to the Separation. Under the Corteva Separation Agreement, certain legacy EID liabilities from discontinued and/or divested operations and businesses of EID (including Performance Chemicals) (a “stray liability”) were allocated to Corteva or DuPont. For those stray liabilities allocated to Corteva (which may include a specified amount of liability associated with that liability), Corteva is responsible for liabilities in an amount up to that specified amount plus an additional $200 million and, for those stray liabilities allocated to DuPont (which may include a specified amount of liability associated with that liability), DuPont is responsible for liabilities up to a specified amount plus an additional $200 million. Once each company has met the $200 million threshold, Corteva and DuPont will share future liabilities proportionally on the basis of 29% and 71%, respectively; provided, however, that for PFAS, DuPont will manage such liabilities with Corteva and DuPont sharing the costs on a 50% - 50% basis starting from $1 and up to $300 million (with such amount, up to $150 million, to be credited to each company’s $200 million threshold) and once the $300 million threshold is met, then the companies will share proportionally on the basis of 29% and 71% respectively, subject to a $1 million de minimis requirement. During the second quarter of 2021, the aggregate amount of the Company’s cash spent and liabilities accrued exceeded the stray liability thresholds, including PFAS, noted above. Therefore, liabilities recognized subsequent to the second quarter of 2021 will be shared at the reduced rates noted above. Litigation The company is subject to various legal proceedings, including, but not limited to, product liability, intellectual property, antitrust, commercial, property damage, personal injury, environmental and regulatory matters arising out of the normal course of its current businesses or legacy EID businesses unrelated to Corteva’s current businesses but allocated to Corteva as part of the separation of Corteva from DowDuPont. It is not possible to predict the outcome of these various proceedings, as considerable uncertainty exists. The company records accruals for legal matters when the information available indicates that it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Accruals may reflect the impact and status of negotiations, settlements, rulings, advice from counsel and other information and events that may pertain to a particular matter. For the litigation matters discussed below, management believes that it is reasonably possible that the company could incur liabilities in excess of amounts accrued, the ultimate liability for which could be material to the results of operations and the cash flows in the period recognized. However, the company is unable to estimate the possible loss beyond amounts accrued due to various reasons, including, among others, that the underlying matters are either in early stages and/or have significant factual issues to be resolved. In addition, even when the company believes it has substantial defenses, the company may consider settlement of matters if it believes it is in the best interest of the company. Chlorpyrifos Lawsuits As of September 30, 2021, there were pending personal injury lawsuits filed and additional asserted claims against the former Dow Agrosciences LLC, alleging injuries related to chlorpyrifos exposure, the active ingredient in Lorsban®, an insecticide used by commercial farms for field fruit, nut and vegetable crops. Corteva ended its production of Lorsban® in 2020. Chlorpyrifos products are restricted-use pesticides, which are not available for purchase or use by the general public, and may only be sold to, and used by, certified applicators or someone under the certified applicator's direct supervision. These lawsuits do not relate to Dursban®, a residential type chlorpyrifos product that was authorized for indoor purposes, which was discontinued over two decades ago prior to the Merger and Corteva’s formation and Separation. Claimants allege personal injury, including autism, developmental delays and/or decreased neurologic function, resulting from farm worker exposure and bystander drift and in utero exposure to chlorpyrifos. Certain claimants have also put forth remediation claims due to alleged property contamination from chlorpyrifos. Discovery for the cases only recently begun and is expected to continue through the first quarter of 2022. Notwithstanding the company’s confidence in the safety of its former chlorpyrifos products, in certain circumstances the company may settle when determined to be in the best interest of the company. Litigation related to legacy EID businesses unrelated to Corteva’s current businesses PFAS, PFOA, PFOS and Other Related Liabilities For purposes of this report, the term PFOA means collectively perfluorooctanoic acid and its salts, including the ammonium salt and does not distinguish between the two forms, and PFAS, which means per- and polyfluoroalkyl substances, including PFOA, PFOS (perfluorooctanesulfonic acid), GenX and other perfluorinated chemicals and compounds ("PFCs"). EID is a party to various legal proceedings relating to the use of PFOA by its former Performance Chemicals segment for which potential liabilities would be subject to the cost sharing arrangement under the MOU as long as it remains effective. Leach Settlement and Ohio MDL Settlement EID has residual liabilities under its 2004 settlement of a West Virginia state court class action, Leach v. EID, which alleged that PFOA from EID’s former Washington Works facility had contaminated area drinking water supplies and affected the health of area residents. The settlement class has about 80,000 members. In addition to relief that was provided to class members years ago, the settlement requires EID to continue providing PFOA water treatment to six area water districts and private well users and to fund, through an escrow account, up to $235 million for a medical monitoring program for eligible class members. As of September 30, 2021, approximately $2 million had been disbursed from the account since its establishment in 2012 and the remaining balance is approximately $1 million. The Leach settlement permits class members to pursue personal injury claims for six health conditions (and no others) that an expert panel appointed under the settlement reported in 2012 had a “probable link” (as defined in the settlement) with PFOA: pregnancy-induced hypertension, including preeclampsia; kidney cancer; testicular cancer; thyroid disease; ulcerative colitis; and diagnosed high cholesterol. After the panel reported its findings, approximately 3,550 personal injury lawsuits were filed in federal and state courts in Ohio and West Virginia and consolidated in multi-district litigation in the U.S. District Court for the Southern District of Ohio (“Ohio MDL”). The Ohio MDL was settled in early 2017 for $670.7 million in cash, with Chemours and EID (without indemnification from Chemours) each paying half. Post-MDL Settlement PFOA Personal Injury Claims The 2017 Ohio MDL settlement did not resolve claims of plaintiffs who did not have claims in the Ohio MDL or whose claims are based on diseases first diagnosed after February 11, 2017. The first trial for these claims, a kidney cancer case, resulted in a hung jury, while the second, Travis and Julie Abbot v. E.I du Pont de Nemours and Company (the “Abbot Case”), a testicular cancer case, resulted in a jury verdict of $40 million in compensatory damages and $10 million for loss of consortium. Following entry of the judgment by the court, EID filed post-trial motions to reduce the verdict, and to appeal the verdict on the basis of procedural and substantive legal errors made by the trial court. The trial court recently granted EID’s motion to reduce the loss of consortium award to conform with state tort reform laws limiting these damages to $250,000. The company is continuing its other appeals to reduce the jury verdict or eliminate its liability, in whole or part. In January 2021, Chemours, DuPont and Corteva agreed to settle the remaining approximately 95 matters, as well as unfiled matters, remaining in the Ohio MDL, with the exception of the Abbot case, for $83 million, with Chemours contributing $29 million to the settlement, and DuPont and Corteva contributing $27 million each. The company recorded a liability for its share of the settlement, with a charge to (loss) income from discontinued operations after income taxes in the interim Consolidated Statement of Operations, during the year ended December 31, 2020, and paid $27 million during the nine months ended September 30, 2021. As agreed to in the settlement, the plaintiffs' counsel filed a motion to dissolve the MDL. Other PFOA Matters EID is a party to other PFOA lawsuits that do not involve claims for personal injury. Defense costs and any future liabilities that may arise out of these lawsuits are subject to the MOU and the cost sharing arrangement disclosed above. Under the MOU, fraudulent conveyance claims associated with these matters are not qualified expenses, unless Corteva, Inc. and EID would prevail on the merits of these claims. New York . EID is a defendant in about 50 lawsuits, including a putative class action, brought by persons who live in and around Hoosick Falls, New York. These lawsuits assert claims for medical monitoring and property damage based on alleged PFOA releases from manufacturing facilities owned and operated by co-defendants in Hoosick Falls and allege that EID and 3M supplied some of the materials used at these facilities. EID is also one of more than ten defendants in a lawsuit brought by the Town of East Hampton, New York alleging PFOA and PFOS contamination of the town’s well water. Additionally, EID, along with 3M, Chemours and Dyneon, have been named defendants in complaints filed by eight water districts in Nassau County, New York alleging that the drinking water they provide to customers is contaminated with PFAS and seeking reimbursement for clean-up costs. The water district complaints also include allegations of fraudulent transfer. New Jersey . At September 30, 2021, two lawsuits were pending, one brought by a local water utility and the second a putative class action, against EID alleging that PFOA from EID’s former Chambers Works facility contaminated drinking water sources. The putative class action was voluntarily dismissed without prejudice by the plaintiff. In late March of 2019, the New Jersey State Attorney General filed four lawsuits against EID, Chemours, 3M and others alleging that operations at and discharges from former EID sites in New Jersey (Chambers Works, Pompton Lakes, Parlin and Repauno) damaged the State’s natural resources. Two of these lawsuits (those involving the Chambers Works and Parlin sites) allege contamination from PFAS. The Ridgewood Water District in New Jersey filed suit in the first quarter 2019 against EID, 3M, Chemours, and Dyneon alleging losses related to the investigation, remediation and monitoring of polyfluorinated surfactants, including PFOA, in water supplies. DuPont and Corteva were subsequently added as defendants to these lawsuits. Alabama / Others . EID is one of more than thirty defendants in a lawsuit by the Alabama water utility alleging contamination from PFCs, including PFOA, used by co-defendant carpet manufacturers to make their products more stain and grease resistant. In addition, the states of Alaska, Michigan, Mississippi, New Hampshire, South Dakota, and Vermont recently filed lawsuits against EID, Chemours, 3M and others, claiming, among other things, PFC (including PFOA) contamination of groundwater and drinking water. The complaints seek reimbursement for past and future costs to investigate and remediate the alleged contamination and compensation for the loss of value and use of the state’s natural resources. Motions to dismiss the Michigan, Vermont and New Hampshire cases have been denied. Ohio . EID is a defendant in three lawsuits: an action by the State of Ohio based on alleged damage to natural resources, a putative nationwide class action brought on behalf of anyone who has detectable levels of PFAS in their blood serum, and an action by the City of Dayton claiming losses related to the investigation, remediation and monitoring of PFAS in water supplies. Netherlands. In April 2021, four municipalities in the Netherlands filed complaints alleging contamination of land and groundwater resulting from the emission of PFOA and GenX by Corteva, DuPont and Chemours. The municipalities seek to recover costs incurred due to the alleged emissions, including damages for investigation costs, construction project delays, depreciation of land, soil remediation, liabilities to contractors, and attorneys’ fees. Delaware . On July 13, 2021, Chemours, DuPont, EID and Corteva entered into a settlement agreement with the State of Delaware reflecting the companies’ and the State’s agreement to settle and fully resolve claims alleged against the companies regarding their historical Delaware operations, manufacturing, use and disposal of all chemical compounds, including PFAS. Under the settlement, the companies will collectively pay $50 million to fund environmental projects, including sampling and community environmental justice and equity grants, which shall be utilized to fund the Natural Resources and Sustainability Trust (the “NRST Trust”). If the companies, individually or jointly, within 8 years of the settlement, enter into a proportionally similar agreement to settle or resolve claims of another state for PFAS-related natural resource damages, for an amount greater than $50 million, the companies shall make a supplemental payment directly to the NRST Trust (“Supplemental Payment”) in an amount equal to such other states’ recovery in excess of $50 million. Supplemental Payment(s), if any, will not exceed $25 million in the aggregate. All amounts paid by the companies under the settlement are subject to the MOU and the Corteva Separation Agreement with Chemours bearing responsibility for 50%, or $25 million, of the $50 million payment due to the NRST and DuPont and Corteva each bearing $12.5 million of the remaining amount. As of September 30, 2021, an accrual has been established in relation to this settlement and during the nine months ended September 30, 2021, the company recorded a charge of $11 million to (loss) income from discontinued operations after income taxes in the interim Consolidated Statement of Operations. Under the settlement, if the state sues other parties and those parties seek contribution from the companies, the companies will have protection from contribution up to the amounts previously paid under the settlement agreement. The companies will also receive a credit up to the amount of the payment if the state seeks natural resource damage claims against the companies outside the scope of the settlement’s release of claims. Aqueous Firefighting Foam s. Approximately 1,760 cases have been filed against 3M and other defendants, including EID and Chemours, and more recently also including Corteva and DuPont, alleging PFOS or PFOA contamination of soil and groundwater from the use of aqueous firefighting foams. Most of those cases claim some form of property damage and seek to recover the costs of responding to this contamination and damages for the loss of use and enjoyment of property and diminution in value. Most of these cases have been transferred to a multidistrict litigation proceeding in federal district court in South Carolina. Approximately 1,600 of these cases were filed on behalf of firefighters who allege personal injuries (primarily kidney and testicular cancer) as a result of aqueous firefighting foams, while 96 are from municipal water districts. Most of these recent cases assert claims that the EID and Chemours separation constituted a fraudulent conveyance. A schedule of initial trials is expected to be established in the second half of 2021. EID did not make firefighting foams, PFOS, or PFOS products. While EID made surfactants and intermediaries that some manufacturers used in making foams, which may have contained PFOA as an unintended byproduct or an impurity, EID’s products were not formulated with PFOA, nor was PFOA an ingredient of these products. EID has never made or sold PFOA as a commercial product. Fayetteville Works Facility, North Carolina Prior to the separation of Chemours, EID introduced GenX as a polymerization processing aid and a replacement for PFOA at the Fayetteville Works facility in Bladen County, North Carolina. The facility is now owned and operated by Chemours, which continues to manufacture and use GenX. At September 30, 2021, several actions are pending in federal court against Chemours and EID relating to PFC discharges from the Fayetteville Works facility. One of these is a consolidated putative class action that asserts claims for medical monitoring and property damage on behalf of putative classes of property owners and residents in areas near or who draw drinking water from the Cape Fear River. Another action is a consolidated action brought by various North Carolina water authorities, including the Cape Fear Public Utility Authority and Brunswick County, that seek actual and punitive damages as well as injunctive relief. In another action with approximately 100 property owners near the Fayetteville Works facility, a complaint was filed against Chemours and EID in May 2020. The plaintiffs seek compensatory and punitive damages for their claims of private nuisance, trespass, and negligence allegedly caused by release of PFAS. In addition to the federal court actions, there is an action on behalf of about 100 plaintiffs who own wells and property near the Fayetteville Works facility. The plaintiffs seek damages for nuisance allegedly caused by releases of certain PFCs from the site. Generally, site-related expenses related GenX claims are subject to the cost sharing arrangements as defined in the MOU. Environmental Accruals for environmental matters are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated based on current law and existing technologies. These obligations are included in accrued and other current liabilities and other noncurrent obligations in the interim Consolidated Balance Sheet. It is reasonably possible that environmental remediation and restoration costs in excess of amounts accrued could have a material impact on the company’s results of operations, financial condition and cash flows. Inherent uncertainties exist in these estimates primarily due to unknown conditions, changing governmental regulations and legal standards regarding liability, and emerging remediation technologies for handling site remediation and restoration. For a discussion of the allocation of environmental liabilities under the Chemours Separation Agreement and the Corteva Separation Agreement, see the previous discussion on page 24. As of September 30, 2021 (In millions) Indemnification Asset Accrual balance 3 Potential exposure above amount accrued 3 Environmental Remediation Stray Liabilities Chemours related obligations - subject to indemnity 1,2 $ 156 $ 156 $ 266 Other discontinued or divested businesses obligations 1 10 77 187 Environmental remediation liabilities primarily related to DuPont - subject to indemnity from DuPont 2 38 38 64 Environmental remediation liabilities not subject to indemnity — 72 49 Indemnification liabilities related to the MOU 4 9 111 20 Total $ 213 $ 454 $ 586 1. Represents liabilities that are subject to the $200 million thresholds and sharing arrangements as discussed on page 24, under the header "Corteva Separation Agreement." 2. The company has recorded an indemnification asset related to these accruals, including $40 million related to the Superfund sites. 3. Accrual balance represents management’s best estimate of the costs of remediation and restoration, although it is reasonably possible that the potential exposure, as indicated, could range above the amounts accrued, as there are inherent uncertainties in these estimates. Accrual balances includes $67 million for remediation of Superfund sites. 4. Represents liabilities that are subject to the $150 million thresholds and sharing agreements as discussed on page 23, under the header "Chemours / Performance Chemicals."

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	STOCKHOLDERS' EQUITY Share Buyback Plan On August 5, 2021, Corteva, Inc. announced that its Board of Directors authorized a $1.5 billion share repurchase program to purchase Corteva, Inc.'s common stock, par value $0.01 per share, without an expiration date ("2021 Share Buyback Plan"). The timing, price and volume of purchases will be based on market conditions, relevant securities laws and other factors. In connection with the 2021 Share Buyback Plan, the company purchased and retired 1,167,000 shares during the three months ended September 30, 2021 in the open market for a total cost of $50 million. On June 26, 2019, Corteva, Inc. announced that its Board of Directors authorized a $1 billion share repurchase program to purchase Corteva, Inc.'s common stock, par value $0.01 per share, without an expiration date ("2019 Share Buyback Plan"). In connection with the 2019 Share Buyback Plan, the company purchased and retired 3,408,000 shares and 15,378,000 shares, respectively, in the open market for a total cost of $150 million and $700 million during the three and nine months ended September 30, 2021, respectively. During the three and nine months ended September 30, 2020, the company purchased and retired 1,160,000 shares and 3,025,000 shares, respectively, in the open market for a total cost of $33 million and $83 million, respectively. Purchases under the 2019 Share Buyback Plan are now complete with the third quarter 2021 activity noted above. Shares repurchased pursuant to Corteva's share buyback plans are immediately retired upon purchase. Repurchased common stock is reflected as a reduction of stockholders' equity. The company's accounting policy related to its share repurchases is to reduce its common stock based on the par value of the shares and to reduce its retained earnings for the excess of the repurchase price over the par value. When Corteva has an accumulated deficit balance, the excess over the par value is applied to APIC. When Corteva has retained earnings, the excess is charged entirely to retained earnings. Noncontrolling Interest In June 2020, the company completed the acquisition of the remaining 46.5 percent interest in the Phytogen Seed Company, LLC joint venture from J. G. Boswell Company. As the purchase of the remaining interest did not result in a change of control, the difference between the carrying value of the noncontrolling interest and the consideration paid, net of taxes was recorded within equity. Corteva, Inc. owns 100 percent of the outstanding common shares of EID. However, EID has preferred stock outstanding to third parties which is accounted for as a non-controlling interest in Corteva's interim Consolidated Balance Sheets. Each share of EID Preferred Stock - $4.50 Series and EID Preferred Stock - $3.50 Series issued and outstanding at the effective date of the Corteva Distribution remains issued and outstanding as to EID and was unaffected by the Corteva Distribution. Below is a summary of the EID Preferred Stock at September 30, 2021, December 31, 2020, and September 30, 2020, which is classified as noncontrolling interests in Corteva's interim Consolidated Balance Sheets. Shares in thousands Number of Shares Authorized 23,000 $4.50 Series, callable at $120 1,673 $3.50 Series, callable at $102 700 Other Comprehensive (Loss) Income The changes and after-tax balances of components comprising accumulated other comprehensive loss are summarized below: (In millions) Cumulative Translation Adjustment 1 Derivative Instruments Pension Benefit Plans Other Benefit Plans Unrealized Gain (Loss) on Investments Total 2020 Balance January 1, 2020 $ (1,944) $ 2 $ (1,247) $ (81) $ — $ (3,270) Other comprehensive (loss) income before reclassifications (507) (23) (10) 2 — (538) Amounts reclassified from accumulated other comprehensive loss — 7 4 1 — 12 Net other comprehensive (loss) income (507) (16) (6) 3 — (526) Balance September 30, 2020 $ (2,451) $ (14) $ (1,253) $ (78) $ — $ (3,796) 2021 Balance January 1, 2021 $ (1,970) $ (67) $ (1,433) $ 590 $ (10) $ (2,890) Other comprehensive (loss) income before reclassifications (424) 115 (6) 1 3 (311) Amounts reclassified from accumulated other comprehensive loss — (8) 32 (475) 7 (444) Net other comprehensive (loss) income (424) 107 26 (474) 10 (755) Balance September 30, 2021 $ (2,394) $ 40 $ (1,407) $ 116 $ — $ (3,645) 1. The cumulative translation adjustment loss for the nine months ended September 30, 2021 was primarily driven by strengthening of the USD against the European Euro ("EUR"), Swiss Franc ("CHF") and Brazilian Real ("BRL"). The cumulative translation adjustment loss for the nine months ended September 30, 2020 was primarily driven by strengthening of the USD against the Brazilian Real ("BRL") and the South African Rand ("ZAR") against the USD. The tax benefit (expense) on the net activity related to each component of other comprehensive (loss) income was as follows: (In millions) Three Months Ended Nine Months Ended September 30, 2021 2020 2021 2020 Derivative instruments $ (12) $ 4 $ (37) $ 6 Pension benefit plans - net (3) — (8) (3) Other benefit plans - net 51 — 148 — Benefit from (provision for) income taxes related to other comprehensive (loss) income items $ 36 $ 4 $ 103 $ 3 A summary of the reclassifications out of accumulated other comprehensive loss is provided as follows: (In millions) Three Months Ended Nine Months Ended September 30, 2021 2020 2021 2020 Derivative Instruments 1 : $ 6 $ (22) $ (9) $ 13 Tax (benefit) expense 2 (1) 3 1 (6) After-tax $ 5 $ (19) $ (8) $ 7 Amortization of pension benefit plans: Prior service benefit 3,4 $ — $ — $ (1) $ (1) Actuarial losses 3,4 14 1 41 3 Settlement loss 3,4 — — 1 3 Total before tax $ 14 $ 1 $ 41 $ 5 Tax benefit 2 (3) — (9) (1) After-tax $ 11 $ 1 $ 32 $ 4 Amortization of other benefit plans: Prior service benefit 3,4 $ (231) $ — $ (692) $ — Actuarial gains 3,4 23 1 70 1 Curtailment gain — — (1) — Total before tax $ (208) $ 1 $ (623) $ 1 Tax expense 2 51 — 148 — After-tax $ (157) $ 1 $ (475) $ 1 Unrealized Loss on Investments 4 $ — $ — $ 7 $ — Tax benefit 2 — — — — After-tax $ — $ — $ 7 $ — Total reclassifications for the period, after-tax $ (141) $ (17) $ (444) $ 12 1. Reflected in cost of goods sold in the interim Consolidated Statements of Operations. 2. Reflected in (benefit from) provision for income taxes from continuing operations in the interim Consolidated Statements of Operations. 3. These accumulated other comprehensive (loss) income components are included in the computation of net periodic benefit credit of the company's pension and other benefit plans. See Note 15 - Pension Plans and Other Post Employment Benefits, for additional information.

Pension Plans and Other Post Em

Pension Plans and Other Post Employment Benefit Plans	9 Months Ended
	Sep. 30, 2021
Retirement Benefits [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	PENSION PLANS AND OTHER POST EMPLOYMENT BENEFITS The following sets forth the components of the company's net periodic (credit) benefit cost for defined benefit pension plans and other post employment benefits: Three Months Ended Nine Months Ended September 30, (In millions) 2021 2020 2021 2020 Defined Benefit Pension Plans: Service cost $ 7 $ 6 $ 19 $ 19 Interest cost 91 139 273 420 Expected return on plan assets (228) (250) (686) (750) Amortization of unrecognized loss 14 1 41 3 Amortization of prior service benefit — — (1) (1) Settlement loss — — 1 3 Net periodic (credit) benefit cost $ (116) $ (104) $ (353) $ (306) Other Post Employment Benefits: Service cost $ 1 $ — $ 1 $ 1 Interest cost 5 16 16 49 Amortization of unrecognized loss 23 1 70 1 Amortization of prior service benefit (231) — (692) — Curtailment gain — — (1) — Net periodic (credit) benefit cost $ (202) $ 17 $ (606) $ 51

Financial Instruments

Financial Instruments	9 Months Ended
	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Instruments Disclosure [Text Block]	FINANCIAL INSTRUMENTS At September 30, 2021, December 31, 2020 and September 30, 2020, the company had $2,108 million, $2,511 million and $1,986 million, respectively, of held-to-maturity securities (primarily time deposits and money market funds) classified as cash equivalents in the interim Consolidated Balance Sheets, as these securities had maturities of three months or less at the time of purchase; and $103 million, $43 million and $152 million at September 30, 2021, December 31, 2020 and September 30, 2020, respectively, of held-to-maturity securities (primarily time deposits) classified as marketable securities in the interim Consolidated Balance Sheets as these securities had maturities of more than three months to less than one year at the time of purchase. The company’s investments in held-to-maturity securities are held at amortized cost, which approximates fair value. At December 31, 2020, the company had $226 million of available-for-sale debt securities classified as marketable securities in the interim Consolidated Balance Sheet. Derivative Instruments Objectives and Strategies for Holding Derivative Instruments In the ordinary course of business, the company enters into contractual arrangements (derivatives) to reduce its exposure to foreign currency and commodity price risks. The company has established a variety of derivative programs to be utilized for financial risk management. These programs reflect varying levels of exposure coverage and time horizons based on an assessment of risk. Derivative programs have procedures and controls and are approved by the Corporate Financial Risk Management Committee, consistent with the company's financial risk management policies and guidelines. Derivative instruments used are forwards, options, futures and swaps. The company has not designated any non-derivatives as hedging instruments. The company's financial risk management procedures also address counterparty credit approval, limits and routine exposure monitoring and reporting. The counterparties to these contractual arrangements are major financial institutions and major commodity exchanges, and multinational grain exporters. The company is exposed to credit loss in the event of nonperformance by these counterparties. The company utilizes collateral support annex agreements with certain counterparties to limit its exposure to credit losses. The company anticipates performance by counterparties to these contracts and therefore no material loss is expected. Market and counterparty credit risks associated with these instruments are regularly reported to management. The notional amounts of the company's derivative instruments were as follows: Notional Amounts (In millions) September 30, 2021 December 31, 2020 September 30, 2020 Derivatives designated as hedging instruments: Foreign currency contracts $ 1,227 $ 1,164 $ 770 Commodity contracts $ 262 $ 383 $ 51 Derivatives not designated as hedging instruments: Foreign currency contracts $ 1,164 $ 647 $ 924 Commodity contracts $ 7 $ — $ — Foreign Currency Risk The company's objective in managing exposure to foreign currency fluctuations is to reduce earnings and cash flow volatility associated with foreign currency rate changes and to mitigate the exposure of certain investments in foreign subsidiaries against changes in the Euro/USD exchange rate. Accordingly, the company enters into various contracts that change in value as foreign exchange rates change to protect the value of its existing foreign currency-denominated assets, liabilities, commitments, investments and cash flows. The company uses foreign exchange contracts to offset its net exposures, by currency, related to the foreign currency denominated monetary assets and liabilities of its operations. The primary business objective of this hedging program is to maintain an approximately balanced position in foreign currencies so that exchange gains and losses resulting from exchange rate changes, after related tax effects, are minimized. The company also uses foreign currency exchange contracts to offset a portion of the company’s exposure to certain forecasted transactions as well as the translation of foreign currency-denominated earnings. The company also uses commodity contracts to offset risks associated with foreign currency devaluation in certain countries. Commodity Price Risk Commodity price risk management programs serve to reduce exposure to price fluctuations on purchases of inventory such as corn and soybeans. The company enters into over-the-counter and exchange-traded derivative commodity instruments to hedge the commodity price risk associated with agricultural commodity exposures. Derivatives Designated as Cash Flow Hedges Commodity Contracts The company enters into over-the-counter and exchange-traded derivative commodity instruments, including options, futures and swaps, to hedge the commodity price risk associated with agriculture commodity exposures. While each risk management program has a different time maturity period, most programs currently do not extend beyond the next two years. Cash flow hedge results are reclassified into earnings during the same period in which the related exposure impacts earnings. Reclassifications are made sooner if it appears that a forecasted transaction is probable of not occurring. The following table summarizes the after-tax effect of commodity contract cash flow hedges on accumulated other comprehensive loss: Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Beginning balance $ 73 $ (16) $ (16) $ 2 Additions and revaluations of derivatives designated as cash flow hedges (10) 10 93 (34) Clearance of hedge results to earnings (4) (2) (18) 24 Ending balance $ 59 $ (8) $ 59 $ (8) At September 30, 2021, an after-tax net gain of $50 million is expected to be reclassified from accumulated other comprehensive loss into earnings over the next twelve months. Foreign Currency Contracts The company enters into forward contracts to hedge the foreign currency risk associated with forecasted transactions within certain foreign subsidiaries. While each risk management program has a different time maturity period, most programs currently do not extend beyond the next two years. Cash flow hedge results are reclassified into earnings during the same period in which the related exposure impacts earnings. Reclassifications are made sooner if it appears that a forecasted transaction is probable of not occurring. The following table summarizes the after-tax effect of foreign currency cash flow hedges on accumulated other comprehensive loss: Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Beginning balance $ (21) $ 19 $ (17) $ — Additions and revaluations of derivatives designated as cash flow hedges 8 4 3 23 Clearance of hedge results to earnings 9 (17) 10 (17) Ending balance $ (4) $ 6 $ (4) $ 6 At September 30, 2021, an after-tax net loss of $11 million is expected to be reclassified from accumulated other comprehensive loss into earnings over the next twelve months. Derivatives Designated as Net Investment Hedges Foreign Currency Contracts The company has designated €450 million of forward contracts to exchange EUR as net investment hedges. The purpose of these forward contracts is to mitigate FX exposure related to a portion of the company’s Euro net investments in certain foreign subsidiaries against changes in Euro/USD exchange rates. These hedges will expire and be settled in 2023, unless terminated early at the discretion of the company. The company elected to apply the spot method in testing for effectiveness of the hedging relationship. Derivatives not Designated in Hedging Relationships Foreign Currency Contracts The company uses foreign exchange contracts to reduce its net exposure, by currency, related to foreign currency-denominated monetary assets and liabilities of its operations so that exchange gains and losses resulting from exchange rate changes are minimized. The netting of such exposures precludes the use of hedge accounting; however, the required revaluation of the forward contracts and the associated foreign currency-denominated monetary assets and liabilities intends to achieve a minimal earnings impact, after taxes. The company also uses foreign currency exchange contracts to offset a portion of the company’s exposure to the translation of certain foreign currency-denominated earnings so that gains and losses on the contracts offset changes in the USD value of the related foreign currency-denominated earnings over the relevant aggregate period. Commodity Contracts The company utilizes options, futures and swaps that are not designated as hedging instruments to reduce exposure to commodity price fluctuations on purchases of inventory such as corn and soybeans. The company uses forward agreements, with durations less than one year, to buy and sell USD priced commodities in order to reduce its exposure to currency devaluation for a portion of its local currency cash balances. Counterparties to the forward sales agreements are multinational grain exporters and subject to the company’s financial risk management procedures. Fair Value of Derivative Instruments Asset and liability derivatives subject to an enforceable master netting arrangement with the same counterparty are presented on a net basis in the interim Consolidated Balance Sheets. The presentation of the company's derivative assets and liabilities is as follows: September 30, 2021 (In millions) Balance Sheet Location Gross Counterparty and Cash Collateral Netting 1 Net Amounts Included in the interim Consolidated Balance Sheet Asset derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Other current assets $ 20 $ — $ 20 Derivatives not designated as hedging instruments: Foreign currency contracts Other current assets 37 (23) 14 Total asset derivatives $ 57 $ (23) $ 34 Liability derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities $ 9 $ — $ 9 Derivatives not designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities 31 (23) 8 Total liability derivatives $ 40 $ (23) $ 17 December 31, 2020 (In millions) Balance Sheet Location Gross Counterparty and Cash Collateral Netting 1 Net Amounts Included in the Consolidated Balance Sheet Asset derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Other current assets $ 15 $ — $ 15 Derivatives not designated as hedging instruments: Foreign currency contracts Other current assets 40 (40) — Total asset derivatives $ 55 $ (40) $ 15 Liability derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities $ 38 $ — $ 38 Derivatives not designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities 97 (40) 57 Total liability derivatives $ 135 $ (40) $ 95 September 30, 2020 (In millions) Balance Sheet Location Gross Counterparty and Cash Collateral Netting 1 Net Amounts Included in the interim Consolidated Balance Sheet Asset derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Other current assets $ 24 $ — $ 24 Derivatives not designated as hedging instruments: Foreign currency contracts Other current assets 101 (75) 26 Commodity contracts Other current assets 1 — 1 Total asset derivatives $ 126 $ (75) $ 51 Liability derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities $ 12 $ — $ 12 Derivatives not designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities 84 (69) 15 Commodity contracts Accrued and other current liabilities 1 — 1 Total liability derivatives $ 97 $ (69) $ 28 1. Counterparty and cash collateral amounts represent the estimated net settlement amount when applying netting and set-off rights included in master netting arrangements between the company and its counterparties and the payable or receivable for cash collateral held or placed with the same counterparty. Effect of Derivative Instruments Amount of Gain (Loss) Recognized in OCI - Pre-Tax 1 Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Derivatives designated as hedging instruments: Net investment hedges: Foreign currency contracts $ 10 $ (20) $ 24 $ (16) Cash flow hedges: Foreign currency contracts 18 4 12 27 Commodity contracts (11) 14 117 (46) Total derivatives designated as hedging instruments $ 17 $ (2) $ 153 $ (35) 1. OCI is defined as other comprehensive income (loss). Amount of Gain (Loss) Recognized in Income - Pre-Tax 1 Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Derivatives designated as hedging instruments: Cash flow hedges: Foreign currency contracts 2 $ (10) $ 19 $ (11) $ 19 Commodity contracts 2 4 3 20 (32) Total derivatives designated as hedging instruments $ (6) $ 22 $ 9 $ (13) Derivatives not designated as hedging instruments: Foreign currency contracts 3 $ 34 $ (6) $ — $ 173 Foreign currency contracts 2 12 3 (16) 19 Commodity contracts 2 (1) — (18) 9 Total derivatives not designated as hedging instruments 45 (3) (34) 201 Total derivatives $ 39 $ 19 $ (25) $ 188 1. For cash flow hedges, this represents the portion of the gain (loss) reclassified from accumulated OCI into income during the period. 2. Recorded in cost of goods sold in the interim Consolidated Statements of Operations. 3. Gain recognized in other income (expense) - net was partially offset by the related gain on the foreign currency-denominated monetary assets and liabilities of the company's operations. See Note 6 - Supplementary Information, for additional information. Debt Securities The estimated fair value of the available-for-sale securities at December 31, 2020 was determined using Level 1 inputs within the fair value hierarchy. Level 1 measurements were based on quoted market prices in active markets for identical assets and liabilities. The available-for-sale securities at December 31, 2020 are held by certain foreign subsidiaries in which the USD is not the functional currency. The fluctuations in foreign exchange are recorded in accumulated other comprehensive loss within the interim Consolidated Statements of Equity. These fluctuations are subsequently reclassified from accumulated other comprehensive loss to earnings in the period in which the marketable securities are sold and the gains and losses on these securities offset a portion of the foreign exchange fluctuations in earnings for the company. The following table provides the investing results from available-for-sale securities for the nine months ended September 30, 2021: Investing Results Nine Months Ended (In millions) 2021 Proceeds from sales of available-for-sale securities $ 226 Gross realized losses $ (7)

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	FAIR VALUE MEASUREMENTS The following tables summarize the basis used to measure certain assets and liabilities at fair value on a recurring basis: September 30, 2021 Significant Other Observable Inputs (In millions) Level 1 Level 2 Assets at fair value: Marketable securities $ — $ 103 Derivatives relating to: 2 Foreign currency — 57 Equity securities 3 75 — Total assets at fair value $ 75 $ 160 Liabilities at fair value: Derivatives relating to: 2 Foreign currency — 40 Total liabilities at fair value $ — $ 40 December 31, 2020 Significant Other Observable Inputs (In millions) Level 1 Level 2 Assets at fair value: Marketable securities $ — $ 43 Debt securities: U.S. treasuries 1 226 — Derivatives relating to: 2 Foreign currency — 55 Total assets at fair value $ 226 $ 98 Liabilities at fair value: Derivatives relating to: 2 Foreign currency — 135 Total liabilities at fair value $ — $ 135 September 30, 2020 Significant Other Observable Inputs (Level 2) (In millions) Assets at fair value: Marketable securities $ 152 Derivatives relating to: 2 Foreign currency 125 Commodity contracts 1 Total assets at fair value $ 278 Liabilities at fair value: Derivatives relating to: 2 Foreign currency 96 Commodity contracts 1 Total liabilities at fair value $ 97 1. The company's investments in debt securities, which are available-for-sale, are included in "marketable securities" in the interim Consolidated Balance Sheets. 2. See Note 16 - Financial Instruments for the classification of derivatives in the interim Consolidated Balance Sheets. 3. The company's equity securities are included in other assets in the interim Consolidated Balance Sheets.

Segment Reporting (Notes)

Segment Reporting (Notes)	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Segment Reporting Disclosure [Text Block]	SEGMENT INFORMATION Corteva’s reportable segments reflects the manner in which its chief operating decision maker ("CODM") allocates resources and assesses performance, which is at the operating segment level (seed and crop protection). For purposes of allocating resources to the segments and assessing segment performance, segment operating EBITDA is the primary measure used by Corteva’s CODM. The company defines segment operating EBITDA as earnings (i.e., income (loss) from continuing operations before income taxes) before interest, depreciation, amortization, corporate expenses, non-operating (benefits) costs - net, foreign exchange gains (losses), and net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting, excluding the impact of significant items. Effective January 1, 2021, on a prospective basis, the company excludes from segment operating EBITDA net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting. Non-operating (benefits) costs - net consists of non-operating pension and other post-employment benefit (OPEB) costs, tax indemnification adjustments and environmental remediation and legal costs associated with legacy EID businesses and sites. Tax indemnification adjustments relate to changes in indemnification balances, as a result of the application of the terms of the Tax Matters Agreement, between Corteva and Dow and/or DuPont that are recorded by the company as pre-tax income or expense. As of and for the Three Months Ended September 30, (In millions) Seed Crop Protection Total 2021 Net sales $ 738 $ 1,633 $ 2,371 Segment operating EBITDA $ (217) $ 206 $ (11) Segment assets 1 $ 23,701 $ 12,539 $ 36,240 2020 Net sales $ 523 $ 1,340 $ 1,863 Segment operating EBITDA $ (282) $ 130 $ (152) Segment assets 1 $ 24,372 $ 12,593 $ 36,965 1. Segment assets at December 31, 2020 were $23,751 million and $13,099 million for Seed and Crop Protection, respectively. For the Nine Months Ended September 30, (In millions) Seed Crop Protection Total 2021 Net sales $ 7,010 $ 5,166 $ 12,176 Segment operating EBITDA $ 1,523 $ 897 $ 2,420 2020 Net sales $ 6,516 $ 4,494 $ 11,010 Segment operating EBITDA $ 1,255 $ 677 $ 1,932 Reconciliation to interim Consolidated Financial Statements Income (loss) from continuing operations after income taxes to segment operating EBITDA (In millions) Three Months Ended Nine Months Ended 2021 2020 2021 2020 Income (loss) from continuing operations after income taxes $ 36 $ (390) $ 1,667 $ 657 (Benefit from) provision for income taxes on continuing operations (28) (117) 434 88 Income (loss) from continuing operations before income taxes 8 (507) 2,101 745 Depreciation and amortization 309 285 926 868 Interest income (19) (11) (58) (38) Interest expense 8 11 22 35 Exchange (gains) losses - net (2) 67 47 127 Non-operating benefits - net (315) (73) (941) (237) Mark-to-market (gains) losses on certain foreign currency contracts not designated as hedges 1 (19) 3 Significant items (21) 49 214 351 Corporate expenses 40 27 106 81 Segment operating EBITDA $ (11) $ (152) $ 2,420 $ 1,932 1. Effective January 1, 2021, on a prospective basis, the company excludes net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting. For the three and nine months ended September 30, 2020, the unrealized mark-to-market (loss) gain was $(8) million and $19 million, respectively. Refer to page 57 for further discussion of the company’s Non-GAAP financial measures. Segment assets to total assets (in millions) September 30, 2021 December 31, 2020 September 30, 2020 Total segment assets $ 36,240 $ 36,850 $ 36,965 Corporate assets 4,882 5,799 4,725 Total assets $ 41,122 $ 42,649 $ 41,690 Significant Pre-tax (Charges) Benefits Not Included in Segment Operating EBITDA The three and nine months ended September 30, 2021 and 2020, respectively, included the following significant pre-tax (charges) benefits which are excluded from segment operating EBITDA: (In millions) Seed Crop Protection Corporate Total For the Three Months Ended September 30, 2021 Restructuring and Asset Related Charges - Net 1 $ (9) $ (8) $ (9) $ (26) Equity securities mark-to-market gain 47 — — 47 Total $ 38 $ (8) $ (9) $ 21 (In millions) Seed Crop Protection Corporate Total For the Three Months Ended September 30, 2020 Restructuring and Asset Related Charges - Net 1 $ (9) $ (40) $ — $ (49) Total $ (9) $ (40) $ — $ (49) (In millions) Seed Crop Protection Corporate Total For the Nine Months Ended September 30, 2021 Restructuring and Asset Related Charges - Net 1 $ (145) $ (51) $ (65) $ (261) Equity securities mark-to-market gain 47 — — 47 Total $ (98) $ (51) $ (65) $ (214) (In millions) Seed Crop Protection Corporate Total For the Nine Months Ended September 30, 2020 Restructuring and Asset Related Charges - Net 1 $ (154) $ (98) $ (46) $ (298) Loss on Divestiture 2 — (53) — (53) Total $ (154) $ (151) $ (46) $ (351) 1. Includes Board approved restructuring plans and asset related charges as well as accelerated prepaid amortization expense. See Note 5 - Restructuring and Asset Related Charges - Net, to the interim Consolidated Financial Statements for additional information. 2. Includes a loss recorded in other income - net related to the sale of the La Porte site. .

EID - Basis of Presentation (No

EID - Basis of Presentation (Notes)	9 Months Ended
	Sep. 30, 2021
EID [Member]
Entity Information [Line Items]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	BASIS OF PRESENTATION As a result of the Business Realignment and the Internal Reorganization, Corteva, Inc. owns 100% of the outstanding common stock of EID. EID is a subsidiary of Corteva, Inc. and continues to be a reporting company, subject to the requirements of the Exchange Act. The primary differences between Corteva, Inc. and EID are outlined below: • Preferred Stock - EID has preferred stock outstanding to third parties which is accounted for as a non-controlling interest at the Corteva, Inc. level. Each share of EID Preferred Stock - $4.50 Series and EID Preferred Stock - $3.50 Series issued and outstanding at the effective date of the Corteva Distribution remains issued and outstanding as to EID and was unaffected by the Corteva Distribution. • Related Party Loan - EID engaged in a series of debt redemptions during the second quarter of 2019 that were partially funded through an intercompany loan from Corteva, Inc. This was eliminated in consolidation at the Corteva, Inc. level but remains on EID's consolidated financial statements at the standalone level (including the associated interest). • Capital Structure - At September 30, 2021, Corteva, Inc.'s capital structure consists of 730,267,000 issued shares of common stock, par value $0.01 per share. The accompanying footnotes relate to EID only, and not to Corteva, Inc., and are presented to show differences between EID and Corteva, Inc. For the footnotes listed below, refer to the following Corteva, Inc. footnotes: • Note 1 - Summary of Significant Accounting Policies - refer to page 10 of the Corteva, Inc. interim Consolidated Financial Statements • Note 2 - Recent Accounting Guidance - refer to page 10 of the Corteva, Inc. interim Consolidated Financial Statements • Note 3 - Divestitures and Other Transactions - refer to page 10 of the Corteva, Inc. interim Consolidated Financial Statements • Note 4 - Revenue - refer to page 11 of the Corteva, Inc. interim Consolidated Financial Statements • Note 5 - Restructuring and Asset Related Charges - Net - refer to page 14 of the Corteva, Inc. interim Consolidated Financial Statements • Note 6 - Supplementary Information - refer to page 16 of the Corteva, Inc. interim Consolidated Financial Statements • Note 7 - Income Taxes - refer to page 18 of the Corteva, Inc. interim Consolidated Financial Statements • Note 8 - Earnings Per Share of Common Stock - Not applicable for EID • Note 9 - Accounts and Notes Receivable - Net - refer to page 20 of the Corteva, Inc. interim Consolidated Financial Statements • Note 10 - Inventories - refer to page 21 of the Corteva, Inc. interim Consolidated Financial Statements • Note 11 - Other Intangible Assets - refer to page 21 of the Corteva, Inc. interim Consolidated Financial Statements • Note 12 - Short-Term Borrowings, Long-Term Debt and Available Credit Facilities - refer to page 22 of the Corteva, Inc. interim Consolidated Financial Statements. In addition, EID has a related party loan payable to Corteva, Inc.; refer to EID Note 2 - Related Party Transactions, below • Note 13 - Commitments and Contingent Liabilities - refer to page 23 of the Corteva, Inc. interim Consolidated Financial Statements • Note 14 - Stockholders' Equity - refer to page 29 of the Corteva, Inc. interim Consolidated Financial Statements • Note 15 - Pension Plans and Other Post Employment Benefits - refer to page 32 of the Corteva, Inc. interim Consolidated Financial Statements • Note 16 - Financial Instruments - refer to page 32 of the Corteva, Inc. interim Consolidated Financial Statements • Note 17 - Fair Value Measurements - refer to page 38 of the Corteva, Inc. interim Consolidated Financial Statements • Note 18 - Segment Information - Differences exist between Corteva, Inc. and EID; refer to EID Note 3 - Segment Information, below

EID - Related Party Transaction

EID - Related Party Transactions (Notes)	9 Months Ended
	Sep. 30, 2021
EID [Member]
Related Party Transaction [Line Items]
Related Party Transactions Disclosure [Text Block]	RELATED PARTY TRANSACTIONS Transactions with Corteva In the second quarter of 2019, EID entered into a related party revolving loan from Corteva, Inc., with a maturity date in 2024. As of September 30, 2021, December 31, 2020, and September 30, 2020, the outstanding related party loan balance was $2,443 million, $3,459 million, and $3,712 million respectively (which approximates fair value), with interest rates of 1.52%, 1.62%, and 1.80%, respectively, and is reflected as long-term debt - related party in EID's interim Consolidated Balance Sheets. Additionally, EID has incurred tax deductible interest expense of $11 million and $39 million for the three and nine months ended September 30, 2021, respectively, and $19 million and $82 million for the three and nine months ended September 30, 2020, respectively, associated with the related party loan from Corteva, Inc. As of September 30, 2021, EID had payables to Corteva, Inc., of $61 million and $90 million included in accrued and other current liabilities and other noncurrent obligations, respectively, $92 million at December 31, 2020 included in both accrued and other current liabilities and other noncurrent obligations, respectively, and $110 million and $84 million at September 30, 2020, included in accrued and other current liabilities and other noncurrent obligations, respectively, in the interim Consolidated Balance Sheets related to Corteva's indemnification liabilities to Dow and DuPont per the Separation Agreements (refer to page 10 of the Corteva, Inc. interim Consolidated Financial Statements for further details of the Separation Agreements).

EID Segment FN (Notes)

EID Segment FN (Notes)	9 Months Ended
	Sep. 30, 2021
Segment Reporting Information [Line Items]
Segment Reporting Disclosure [Text Block]	SEGMENT INFORMATION Corteva’s reportable segments reflects the manner in which its chief operating decision maker ("CODM") allocates resources and assesses performance, which is at the operating segment level (seed and crop protection). For purposes of allocating resources to the segments and assessing segment performance, segment operating EBITDA is the primary measure used by Corteva’s CODM. The company defines segment operating EBITDA as earnings (i.e., income (loss) from continuing operations before income taxes) before interest, depreciation, amortization, corporate expenses, non-operating (benefits) costs - net, foreign exchange gains (losses), and net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting, excluding the impact of significant items. Effective January 1, 2021, on a prospective basis, the company excludes from segment operating EBITDA net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting. Non-operating (benefits) costs - net consists of non-operating pension and other post-employment benefit (OPEB) costs, tax indemnification adjustments and environmental remediation and legal costs associated with legacy EID businesses and sites. Tax indemnification adjustments relate to changes in indemnification balances, as a result of the application of the terms of the Tax Matters Agreement, between Corteva and Dow and/or DuPont that are recorded by the company as pre-tax income or expense. As of and for the Three Months Ended September 30, (In millions) Seed Crop Protection Total 2021 Net sales $ 738 $ 1,633 $ 2,371 Segment operating EBITDA $ (217) $ 206 $ (11) Segment assets 1 $ 23,701 $ 12,539 $ 36,240 2020 Net sales $ 523 $ 1,340 $ 1,863 Segment operating EBITDA $ (282) $ 130 $ (152) Segment assets 1 $ 24,372 $ 12,593 $ 36,965 1. Segment assets at December 31, 2020 were $23,751 million and $13,099 million for Seed and Crop Protection, respectively. For the Nine Months Ended September 30, (In millions) Seed Crop Protection Total 2021 Net sales $ 7,010 $ 5,166 $ 12,176 Segment operating EBITDA $ 1,523 $ 897 $ 2,420 2020 Net sales $ 6,516 $ 4,494 $ 11,010 Segment operating EBITDA $ 1,255 $ 677 $ 1,932 Reconciliation to interim Consolidated Financial Statements Income (loss) from continuing operations after income taxes to segment operating EBITDA (In millions) Three Months Ended Nine Months Ended 2021 2020 2021 2020 Income (loss) from continuing operations after income taxes $ 36 $ (390) $ 1,667 $ 657 (Benefit from) provision for income taxes on continuing operations (28) (117) 434 88 Income (loss) from continuing operations before income taxes 8 (507) 2,101 745 Depreciation and amortization 309 285 926 868 Interest income (19) (11) (58) (38) Interest expense 8 11 22 35 Exchange (gains) losses - net (2) 67 47 127 Non-operating benefits - net (315) (73) (941) (237) Mark-to-market (gains) losses on certain foreign currency contracts not designated as hedges 1 (19) 3 Significant items (21) 49 214 351 Corporate expenses 40 27 106 81 Segment operating EBITDA $ (11) $ (152) $ 2,420 $ 1,932 1. Effective January 1, 2021, on a prospective basis, the company excludes net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting. For the three and nine months ended September 30, 2020, the unrealized mark-to-market (loss) gain was $(8) million and $19 million, respectively. Refer to page 57 for further discussion of the company’s Non-GAAP financial measures. Segment assets to total assets (in millions) September 30, 2021 December 31, 2020 September 30, 2020 Total segment assets $ 36,240 $ 36,850 $ 36,965 Corporate assets 4,882 5,799 4,725 Total assets $ 41,122 $ 42,649 $ 41,690 Significant Pre-tax (Charges) Benefits Not Included in Segment Operating EBITDA The three and nine months ended September 30, 2021 and 2020, respectively, included the following significant pre-tax (charges) benefits which are excluded from segment operating EBITDA: (In millions) Seed Crop Protection Corporate Total For the Three Months Ended September 30, 2021 Restructuring and Asset Related Charges - Net 1 $ (9) $ (8) $ (9) $ (26) Equity securities mark-to-market gain 47 — — 47 Total $ 38 $ (8) $ (9) $ 21 (In millions) Seed Crop Protection Corporate Total For the Three Months Ended September 30, 2020 Restructuring and Asset Related Charges - Net 1 $ (9) $ (40) $ — $ (49) Total $ (9) $ (40) $ — $ (49) (In millions) Seed Crop Protection Corporate Total For the Nine Months Ended September 30, 2021 Restructuring and Asset Related Charges - Net 1 $ (145) $ (51) $ (65) $ (261) Equity securities mark-to-market gain 47 — — 47 Total $ (98) $ (51) $ (65) $ (214) (In millions) Seed Crop Protection Corporate Total For the Nine Months Ended September 30, 2020 Restructuring and Asset Related Charges - Net 1 $ (154) $ (98) $ (46) $ (298) Loss on Divestiture 2 — (53) — (53) Total $ (154) $ (151) $ (46) $ (351) 1. Includes Board approved restructuring plans and asset related charges as well as accelerated prepaid amortization expense. See Note 5 - Restructuring and Asset Related Charges - Net, to the interim Consolidated Financial Statements for additional information. 2. Includes a loss recorded in other income - net related to the sale of the La Porte site. .
EID [Member]
Segment Reporting Information [Line Items]
Segment Reporting Disclosure [Text Block]	SEGMENT INFORMATION There are no differences in reporting structure or segments between Corteva, Inc. and EID. In addition, there are no differences between Corteva, Inc. and EID segment net sales, segment operating EBITDA, segment assets, or significant items by segment; refer to page 39 of the Corteva, Inc. interim Consolidated Financial Statements for background information on the segments as well as further details regarding segment metrics. The tables below reconcile income from continuing operations after income taxes to segment operating EBITDA, as differences exist between Corteva, Inc. and EID. Reconciliation to interim Consolidated Financial Statements Income (loss) from continuing operations after income taxes to segment operating EBITDA (In millions) Three Months Ended Nine Months Ended 2021 2020 2021 2020 Income (loss) from continuing operations after income taxes $ 27 $ (404) $ 1,637 $ 595 (Benefit from) provision for income taxes on continuing operations (30) (122) 425 68 Income (loss) from continuing operations before income taxes (3) (526) 2,062 663 Depreciation and amortization 309 285 926 868 Interest income (19) (11) (58) (38) Interest expense 19 30 61 117 Exchange (gains) losses - net (2) 67 47 127 Non-operating benefits - net (315) (73) (941) (237) Mark-to-market (gains) losses on certain foreign currency contracts not designated as hedges 1 (19) 3 Significant items (21) 49 214 351 Corporate expenses 40 27 106 81 Segment operating EBITDA $ (11) $ (152) $ 2,420 $ 1,932

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation The accompanying unaudited interim Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles in the United States of America ("GAAP") for interim financial information and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair statement of the results for interim periods have been included. Results for interim periods should not be considered indicative of results for a full year. These interim Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and Notes thereto contained in the company’s Annual Report on Form 10-K for the year ended December 31, 2020, collectively referred to as the “2020 Annual Report.” The interim Consolidated Financial Statements include the accounts of the company and all of its subsidiaries in which a controlling interest is maintained. Certain reclassifications of prior year's data have been made to conform to current year's presentation. During the first quarter 2020, the company recorded an increase of $40 million to APIC relating to net assets recorded as transferred as part of the 2019 Internal Reorganizations that were retained. Since 2018, Argentina has been considered a hyper-inflationary economy under U.S. GAAP and therefore the U.S. Dollar (“USD”) is the functional currency for our related subsidiaries. Argentina contributes approximately 4 percent to our annual Sales and EBITDA. We remeasure net monetary assets and translate our financial statements utilizing the official Argentine Peso (“Peso”) to USD exchange rate. The ability to draw down Peso cash balances is limited at this time due to government restrictions and market availability of U.S. Dollars. The devaluation of the Peso relative to the USD over the last several years has resulted in the recognition of exchange losses (refer to Note 6 – Supplementary Information, to the interim Consolidated Financial Statements, and Note 9 – Supplemental Information, to the company's 2020 Annual Report). As of September 30, 2021, a further 10 percent deterioration in the official Peso to USD exchange rate would reduce the USD value of our net monetary assets and negatively impact pre-tax earnings by approximately $20 million. We will continue to assess the implications to our operations and financial reporting.

Recent Accounting Guidance Rece

Recent Accounting Guidance Recent Accounting Guidance (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Recent Accounting Guidance	Recently Adopted Accounting Guidance In December 2019, the FASB issued Accounting Standards Update ("ASU") 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which was part of the FASB’s Simplification Initiative to identify, evaluate, and improve areas of GAAP for which cost and complexity can be reduced, while maintaining or improving the usefulness of the information provided to users of the financial statements. This ASU amends ASC 740, Income Taxes, by removing certain exceptions to the general principles, and clarifying and amending current guidance. The new standard is effective for fiscal years, and periods within those fiscal years, beginning after December 15, 2020. The company adopted this guidance on January 1, 2021 and it did not have a material impact on the company’s financial position, results of operation or cash flows.

Revenue Revenue Recognition (Po

Revenue Revenue Recognition (Policies)	9 Months Ended
	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue Recognition, Sales of Goods	Products Substantially all of Corteva's revenue is derived from product sales. Product sales consist of sales of Corteva's products to farmers, distributors, and manufacturers. Corteva considers purchase orders, which in some cases are governed by master supply agreements, to be a contract with a customer. Contracts with customers are considered to be short-term when the time between order confirmation and satisfaction of the performance obligations is equal to or less than one year. However, the company has some long-term contracts which can span multiple years. Revenue from product sales is recognized when the customer obtains control of the company's product, which occurs at a point in time according to shipping terms. Payment terms are generally less than one year from invoicing. The company elected the practical expedient and does not adjust the promised amount of consideration for the effects of a significant financing component when the company expects it will be one year or less between when a customer obtains control of the company's product and when payment is due. The company has elected to recognize shipping and handling activities when control has transferred to the customer as an expense in cost of goods sold. Taxes collected from customers relating to product sales and remitted to governmental authorities are excluded from revenues. In addition, the company elected the practical expedient to expense any costs to obtain contracts as incurred, as the amortization period for these costs would have been one year or less. The transaction price includes estimates of variable consideration, such as rights of return, rebates, and discounts, that are reductions in revenue. All estimates are based on the company's historical experience, anticipated performance, and the company's best judgment at the time the estimate is made. Estimates of variable consideration included in the transaction price utilize either the expected value method or most likely amount depending on the nature of the variable consideration. These estimates are reassessed each reporting period and are included in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur upon resolution of uncertainty associated with the variable consideration. The majority of contracts have a single performance obligation satisfied at a point in time and the transaction price is stated in the contract, usually as quantity times price per unit. For contracts with multiple performance obligations, the company allocates the transaction price to each performance obligation based on the relative standalone selling price. The standalone selling price is the observable price which depicts the price as if sold to a similar customer in similar circumstances.
Revenue Recognition, Licenses of Intellectual Property	Licenses of Intellectual PropertyCorteva enters into licensing arrangements with customers under which it licenses its intellectual property. Revenue from the majority of intellectual property licenses is derived from sales-based royalties. Revenue for licensing agreements that contain sales-based royalties is recognized at the later of (i) when the subsequent sale occurs or (ii) when the performance obligation to which some or all of the royalty has been allocated is satisfied.

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Contract Balances	Contract Balances September 30, 2021 December 31, 2020 September 30, 2020 (In millions) Accounts and notes receivable - trade 1 $ 4,744 $ 3,917 $ 4,638 Contract assets - current 2 $ 24 $ 22 $ 21 Contract assets - noncurrent 3 $ 60 $ 54 $ 52 Deferred revenue - current $ 692 $ 2,662 $ 402 Deferred revenue - noncurrent 4 $ 111 $ 116 $ 106 1. Included in accounts and notes receivable - net in the interim Consolidated Balance Sheets. 2. Included in other current assets in the interim Consolidated Balance Sheets. 3. Included in other assets in the interim Consolidated Balance Sheets.
Major Product Line [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Corn $ 437 $ 303 $ 4,505 $ 4,224 Soybean 157 116 1,494 1,382 Other oilseeds 94 62 661 529 Other 50 42 350 381 Seed 738 523 7,010 6,516 Herbicides 782 583 2,737 2,315 Insecticides 416 395 1,261 1,218 Fungicides 339 261 911 714 Other 96 101 257 247 Crop Protection 1,633 1,340 5,166 4,494 Total $ 2,371 $ 1,863 $ 12,176 $ 11,010 .
Geography [Domain]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	Seed Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 North America 1 $ 168 $ 97 $ 4,482 $ 4,290 EMEA 2 153 117 1,398 1,262 Latin America 334 246 842 668 Asia Pacific 83 63 288 296 Total $ 738 $ 523 $ 7,010 $ 6,516 Crop Protection Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 North America 1 $ 422 $ 390 $ 1,693 $ 1,528 EMEA 2 237 198 1,304 1,163 Latin America 763 559 1,361 1,086 Asia Pacific 211 193 808 717 Total $ 1,633 $ 1,340 $ 5,166 $ 4,494 1. Represents U.S. & Canada. 2. Europe, Middle East, and Africa ("EMEA").

Restructuring and Asset Relat_2

Restructuring and Asset Related Charges (Tables)	9 Months Ended
	Sep. 30, 2021
Execute to Win Productivity Program [Domain]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2021 2020 2021 2020 Seed $ — $ — $ — $ 3 Crop Protection 4 30 10 85 Corporate expenses — — — 46 Total $ 4 $ 30 $ 10 $ 134 Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2021 2020 2021 2020 Severance and related benefit costs $ — $ — $ — $ 46 Asset related charges 4 30 10 88 Total restructuring and asset related charges - net $ 4 $ 30 $ 10 $ 134 (In millions) Severance and Related Benefit Costs Asset Related 1 Total Balance at December 31, 2020 $ 53 $ 3 $ 56 Charges to income from continuing operations — 10 10 Payments (24) (3) (27) Asset write-offs — (10) (10) Balance at September 30, 2021 $ 29 $ — $ 29
2021 Restructuring Actions [Domain]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2021 2021 Seed $ 4 $ 21 Crop Protection 4 41 Corporate expenses 9 65 Total $ 17 $ 127 The following table is a summary of charges incurred related to 2021 Restructuring Actions for the three and nine months ended September 30, 2021: Three Months Ended September 30, Nine Months Ended September 30, (In millions) 2021 2021 Severance and related benefit costs $ 9 $ 58 Asset related charges 7 29 Contract termination charges 1 40 Total restructuring and asset charges - net $ 17 $ 127 A reconciliation of the December 31, 2020 to the September 30, 2021 liability balances related to the 2021 Restructuring Actions is summarized below: (In millions) Severance and Related Benefit Costs Asset Related 1 Contract Termination 2 Total Balance at December 31, 2020 $ — $ — $ — $ — Charges to income from continuing operations 58 29 40 127 Payments (14) — (26) (40) Asset write-offs — (29) — (29) Balance at September 30, 2021 $ 44 $ — $ 14 $ 58 1. In addition, the company has a liability recorded for asset retirement obligations of $6 million as of September 30, 2021. 2. The liability for contract terminations includes lease obligations. The cash impact of these obligations will be substantially complete by 2022.

Supplementary Information (Tabl

Supplementary Information (Tables)	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Other Nonoperating Income (Expense)	Other Income - Net Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Interest income $ 19 $ 11 $ 58 $ 38 Equity in (losses) / earnings of affiliates - net (1) — 4 (3) Net gain (loss) on sales of businesses and other assets 1 1 1 2 (29) Net exchange gains / (losses) 2 2 (67) (47) (127) Non-operating pension and other post employment benefit credit 3 326 93 979 275 Miscellaneous income (expense) - net 4 31 (8) 17 (34) Other income - net $ 378 $ 30 $ 1,013 $ 120 1. The nine months ended September 30, 2020 includes a loss of $(53) million relating to the sale of the La Porte site, for which the company signed an agreement in 2020, and closed during the first quarter of 2021. 2. Includes net pre-tax exchange losses of $(16) million and $(53) million associated with the devaluation of the Argentine peso for the three and nine months ended September 30, 2021, respectively, and $(26) million and $(56) million for the three and nine months ended September 30, 2020, respectively. 3. Includes non-service related components of net periodic benefit credits (costs) (interest cost, expected return on plan assets, amortization of unrecognized gain (loss), amortization of prior service benefit and settlement loss). 4. Miscellaneous expense - net for the three and nine months ended September 30, 2021 and 2020 includes losses on sale of receivables, tax indemnification adjustments related to changes in indemnification balances as a result of the application of the terms of the Tax Matters Agreement between Corteva and Dow and/or DuPont, and other items. Miscellaneous expense - net for the three and nine months ended September 30, 2021 also includes a gain from remeasurement of an equity investment and for the nine months ended September 30, 2021 includes realized losses on sale of available-for-sale securities.
Foreign Currency Exchange Gain (Loss)	(In millions) Three Months Ended Nine Months Ended September 30, 2021 2020 2021 2020 Subsidiary Monetary Position Losses Pre-tax exchange losses $ (32) $ (61) $ (47) $ (300) Local tax benefits / (expenses) 3 16 (11) 44 Net after-tax impact from subsidiary exchange losses $ (29) $ (45) $ (58) $ (256) Hedging Program Gains Pre-tax exchange gains (losses) $ 34 $ (6) $ — $ 173 Tax (expenses) / benefits (8) 2 — (41) Net after-tax impact from hedging program exchange gains (losses) $ 26 $ (4) $ — $ 132 Total Exchange Losses Pre-tax exchange gains (losses) $ 2 $ (67) $ (47) $ (127) Tax (expenses) benefits (5) 18 (11) 3 Net after-tax exchange losses $ (3) $ (49) $ (58) $ (124)
Restrictions on Cash and Cash Equivalents	(In millions) September 30, 2021 December 31, 2020 September 30, 2020 Cash and cash equivalents $ 2,779 $ 3,526 $ 2,768 Restricted cash equivalents 361 347 354 Total cash, cash equivalents and restricted cash equivalents $ 3,140 $ 3,873 $ 3,122

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Net Income (Loss) for Earnings Per Share Calculations - Basic and Diluted Three Months Ended Nine Months Ended September 30, (In millions) 2021 2020 2021 2020 Income (loss) from continuing operations after income taxes $ 36 $ (390) $ 1,667 $ 657 Net income attributable to continuing operations noncontrolling interests 2 2 8 18 Income (loss) from continuing operations available to Corteva common stockholders 34 (392) 1,659 639 (Loss) income from discontinued operations available to Corteva common stockholders (4) — (59) 1 Net income (loss) available to common stockholders $ 30 $ (392) $ 1,600 $ 640
Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table Text Block]	Earnings (Loss) Per Share Calculations - Basic Three Months Ended Nine Months Ended September 30, (Dollars per share) 2021 2020 2021 2020 Earnings (loss) per share of common stock from continuing operations $ 0.05 $ (0.52) $ 2.25 $ 0.85 Loss per share of common stock from discontinued operations (0.01) — (0.08) — Earnings (loss) per share of common stock $ 0.04 $ (0.52) $ 2.17 $ 0.85
Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table Text Block]	Earnings (Loss) Per Share Calculations - Diluted Three Months Ended Nine Months Ended September 30, (Dollars per share) 2021 2020 2021 2020 Earnings (loss) per share of common stock from continuing operations $ 0.05 $ (0.52) $ 2.23 $ 0.85 Loss per share of common stock from discontinued operations (0.01) — (0.08) — Earnings (loss) per share of common stock $ 0.04 $ (0.52) $ 2.15 $ 0.85
Share Count Information	Share Count Information Three Months Ended Nine Months Ended September 30, (Shares in millions) 2021 2020 2021 2020 Weighted-average common shares - basic 733.8 749.5 738.1 749.5 Plus dilutive effect of equity compensation plans 1 5.7 — 5.9 2.5 Weighted-average common shares - diluted 739.5 749.5 744.0 752.0 Potential shares of common stock excluded from EPS calculations 2 3.0 14.6 3.1 9.7 1. Diluted earnings per share considers the impact of potentially dilutive securities except in periods in which there is a loss because the inclusion of the potential common shares would have an anti-dilutive effect. 2. These outstanding potential shares of common stock relating to stock options, restricted stock units and performance-based restricted stock units were excluded from the calculation of diluted earnings per share because the effect of including them would have been anti-dilutive.

Accounts and Notes Receivable_2

Accounts and Notes Receivable (Tables)	9 Months Ended
	Sep. 30, 2021
Accounts and Notes Receivable [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	(In millions) September 30, 2021 December 31, 2020 September 30, 2020 Accounts receivable – trade 1 $ 3,336 $ 3,754 $ 3,231 Notes receivable – trade 1,2 1,408 163 1,407 Other 3 1,074 1,009 989 Total accounts and notes receivable - net $ 5,818 $ 4,926 $ 5,627 1. Accounts receivable – trade and notes receivable - trade are net of allowances of $210 million at September 30, 2021, $208 million at December 31, 2020, and $210 million at September 30, 2020. Allowances are equal to the estimated uncollectible amounts and are based on the expected credit losses and were developed using a loss-rate method. 2. Notes receivable – trade primarily consists of receivables for deferred payment loan programs for the sale of seed products to customers. These loans have terms of one year or less and are primarily concentrated in North America. The company maintains a rigid pre-approval process for extending credit to customers in order to manage overall risk and exposure associated with credit losses. As of September 30, 2021, December 31, 2020, and September 30, 2020 there were no significant impairments related to current loan agreements. 3. Other includes receivables in relation to indemnification assets, value added tax, general sales tax and other taxes. No individual group represents more than 10 percent of total receivables. In addition, Other includes amounts due from nonconsolidated affiliates of $84 million, $106 million, and $92 million as of September 30, 2021, December 31, 2020, and September 30, 2020, respectively.
Accounts Receivable, Allowance for Credit Loss [Table Text Block]	(In millions) 2020 Balance at December 31, 2019 $ 174 Net provision for credit losses 1 54 Write-offs charged against allowance / other 1 (18) Balance at September 30, 2020 $ 210 2021 Balance at December 31, 2020 $ 208 Net provision for credit losses (7) Write-offs charged against allowance / other 9 Balance at September 30, 2021 $ 210

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2021
Inventory Disclosure [Abstract]
Schedule of Inventory, Current [Table Text Block]	(In millions) September 30, 2021 December 31, 2020 September 30, 2020 Finished products $ 1,871 $ 2,584 $ 2,074 Semi-finished products 2,028 1,813 1,878 Raw materials and supplies 518 485 422 Total inventories $ 4,417 $ 4,882 $ 4,374

Other Intangible Assets (Tables

Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Other Intangible Assets	(In millions) September 30, 2021 December 31, 2020 September 30, 2020 Gross Accumulated Net Gross Accumulated Net Gross Accumulated Net Intangible assets subject to amortization (Definite-lived): Germplasm $ 6,265 $ (507) $ 5,758 $ 6,265 $ (317) $ 5,948 $ 6,265 $ (253) $ 6,012 Customer-related 1,956 (460) 1,496 1,984 (380) 1,604 1,966 (352) 1,614 Developed technology 1,485 (641) 844 1,451 (525) 926 1,463 (499) 964 Trademarks/trade names 1 2,012 (152) 1,860 2,019 (99) 1,920 161 (86) 75 Favorable supply contracts 475 (373) 102 475 (302) 173 475 (279) 196 Other 2 407 (252) 155 405 (239) 166 405 (233) 172 Total other intangible assets with finite lives 12,600 (2,385) 10,215 12,599 (1,862) 10,737 10,735 (1,702) 9,033 Intangible assets not subject to amortization (Indefinite-lived): IPR&D 10 — 10 10 — 10 10 — 10 Trade name 1 1,871 — 1,871 Total other intangible assets 10 — 10 10 — 10 1,881 — 1,881 Total $ 12,610 $ (2,385) $ 10,225 $ 12,609 $ (1,862) $ 10,747 $ 12,616 $ (1,702) $ 10,914 1. Beginning on October 1, 2020, the company changed its indefinite life assertion of its trade name asset to definite lived with a useful life of 25 years. This change is the result of the launch of Brevant TM seed in the retail channel in the U.S. Prior to changing the useful life of the trade name asset, the company tested the asset for impairment under ASC 350- Intangibles, Goodwill and Other, concluding the asset was not impaired. 2. Primarily consists of sales and farmer networks, marketing and manufacturing alliances and noncompetition agreements.

Short-Term Borrowings, Long-T_2

Short-Term Borrowings, Long-Term Debt and Available Credit Facilities Debt (Tables)	9 Months Ended
	Sep. 30, 2021
Debt Instrument [Line Items]
Schedule of Short-term Debt [Table Text Block]	Short-term borrowings and finance lease obligations (In millions) September 30, 2021 December 31, 2020 September 30, 2020 Commercial paper $ 802 $ — $ 926 Repurchase facility 550 — 1,175 Other loans - various currencies 18 1 39 Long-term debt payable within one year 1 1 1 Finance lease obligations payable within one year 1 1 1 Total short-term borrowings and finance lease obligations $ 1,372 $ 3 $ 2,142

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Schedule of Environmental Loss Contingencies by Site [Table Text Block]	As of September 30, 2021 (In millions) Indemnification Asset Accrual balance 3 Potential exposure above amount accrued 3 Environmental Remediation Stray Liabilities Chemours related obligations - subject to indemnity 1,2 $ 156 $ 156 $ 266 Other discontinued or divested businesses obligations 1 10 77 187 Environmental remediation liabilities primarily related to DuPont - subject to indemnity from DuPont 2 38 38 64 Environmental remediation liabilities not subject to indemnity — 72 49 Indemnification liabilities related to the MOU 4 9 111 20 Total $ 213 $ 454 $ 586 1. Represents liabilities that are subject to the $200 million thresholds and sharing arrangements as discussed on page 24, under the header "Corteva Separation Agreement." 2. The company has recorded an indemnification asset related to these accruals, including $40 million related to the Superfund sites. 3. Accrual balance represents management’s best estimate of the costs of remediation and restoration, although it is reasonably possible that the potential exposure, as indicated, could range above the amounts accrued, as there are inherent uncertainties in these estimates. Accrual balances includes $67 million for remediation of Superfund sites. 4. Represents liabilities that are subject to the $150 million thresholds and sharing agreements as discussed on page 23, under the header "Chemours / Performance Chemicals."

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Schedule of Noncontrolling Interests Represented by Preferred Stock [Table Text Block]	Shares in thousands Number of Shares Authorized 23,000 $4.50 Series, callable at $120 1,673 $3.50 Series, callable at $102 700
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	(In millions) Cumulative Translation Adjustment 1 Derivative Instruments Pension Benefit Plans Other Benefit Plans Unrealized Gain (Loss) on Investments Total 2020 Balance January 1, 2020 $ (1,944) $ 2 $ (1,247) $ (81) $ — $ (3,270) Other comprehensive (loss) income before reclassifications (507) (23) (10) 2 — (538) Amounts reclassified from accumulated other comprehensive loss — 7 4 1 — 12 Net other comprehensive (loss) income (507) (16) (6) 3 — (526) Balance September 30, 2020 $ (2,451) $ (14) $ (1,253) $ (78) $ — $ (3,796) 2021 Balance January 1, 2021 $ (1,970) $ (67) $ (1,433) $ 590 $ (10) $ (2,890) Other comprehensive (loss) income before reclassifications (424) 115 (6) 1 3 (311) Amounts reclassified from accumulated other comprehensive loss — (8) 32 (475) 7 (444) Net other comprehensive (loss) income (424) 107 26 (474) 10 (755) Balance September 30, 2021 $ (2,394) $ 40 $ (1,407) $ 116 $ — $ (3,645)
Tax (Expense) Benefit of Other Comprehensive (Loss) Income	(In millions) Three Months Ended Nine Months Ended September 30, 2021 2020 2021 2020 Derivative instruments $ (12) $ 4 $ (37) $ 6 Pension benefit plans - net (3) — (8) (3) Other benefit plans - net 51 — 148 — Benefit from (provision for) income taxes related to other comprehensive (loss) income items $ 36 $ 4 $ 103 $ 3
Reclassification out of Accumulated Other Comprehensive (Loss) Income [Table Text Block]	(In millions) Three Months Ended Nine Months Ended September 30, 2021 2020 2021 2020 Derivative Instruments 1 : $ 6 $ (22) $ (9) $ 13 Tax (benefit) expense 2 (1) 3 1 (6) After-tax $ 5 $ (19) $ (8) $ 7 Amortization of pension benefit plans: Prior service benefit 3,4 $ — $ — $ (1) $ (1) Actuarial losses 3,4 14 1 41 3 Settlement loss 3,4 — — 1 3 Total before tax $ 14 $ 1 $ 41 $ 5 Tax benefit 2 (3) — (9) (1) After-tax $ 11 $ 1 $ 32 $ 4 Amortization of other benefit plans: Prior service benefit 3,4 $ (231) $ — $ (692) $ — Actuarial gains 3,4 23 1 70 1 Curtailment gain — — (1) — Total before tax $ (208) $ 1 $ (623) $ 1 Tax expense 2 51 — 148 — After-tax $ (157) $ 1 $ (475) $ 1 Unrealized Loss on Investments 4 $ — $ — $ 7 $ — Tax benefit 2 — — — — After-tax $ — $ — $ 7 $ — Total reclassifications for the period, after-tax $ (141) $ (17) $ (444) $ 12 1. Reflected in cost of goods sold in the interim Consolidated Statements of Operations. 2. Reflected in (benefit from) provision for income taxes from continuing operations in the interim Consolidated Statements of Operations. 3. These accumulated other comprehensive (loss) income components are included in the computation of net periodic benefit credit of the company's pension and other benefit plans. See Note 15 - Pension Plans and Other Post Employment Benefits, for additional information.

Pension Plans and Other Post _2

Pension Plans and Other Post Employment Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2021
Retirement Benefits [Abstract]
Schedule of Net Benefit Costs [Table Text Block]	Three Months Ended Nine Months Ended September 30, (In millions) 2021 2020 2021 2020 Defined Benefit Pension Plans: Service cost $ 7 $ 6 $ 19 $ 19 Interest cost 91 139 273 420 Expected return on plan assets (228) (250) (686) (750) Amortization of unrecognized loss 14 1 41 3 Amortization of prior service benefit — — (1) (1) Settlement loss — — 1 3 Net periodic (credit) benefit cost $ (116) $ (104) $ (353) $ (306) Other Post Employment Benefits: Service cost $ 1 $ — $ 1 $ 1 Interest cost 5 16 16 49 Amortization of unrecognized loss 23 1 70 1 Amortization of prior service benefit (231) — (692) — Curtailment gain — — (1) — Net periodic (credit) benefit cost $ (202) $ 17 $ (606) $ 51

Financial Instruments (Tables)

Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2021
Derivative [Line Items]
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]	Notional Amounts (In millions) September 30, 2021 December 31, 2020 September 30, 2020 Derivatives designated as hedging instruments: Foreign currency contracts $ 1,227 $ 1,164 $ 770 Commodity contracts $ 262 $ 383 $ 51 Derivatives not designated as hedging instruments: Foreign currency contracts $ 1,164 $ 647 $ 924 Commodity contracts $ 7 $ — $ —
Fair Value of Derivatives Instruments	September 30, 2021 (In millions) Balance Sheet Location Gross Counterparty and Cash Collateral Netting 1 Net Amounts Included in the interim Consolidated Balance Sheet Asset derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Other current assets $ 20 $ — $ 20 Derivatives not designated as hedging instruments: Foreign currency contracts Other current assets 37 (23) 14 Total asset derivatives $ 57 $ (23) $ 34 Liability derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities $ 9 $ — $ 9 Derivatives not designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities 31 (23) 8 Total liability derivatives $ 40 $ (23) $ 17 December 31, 2020 (In millions) Balance Sheet Location Gross Counterparty and Cash Collateral Netting 1 Net Amounts Included in the Consolidated Balance Sheet Asset derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Other current assets $ 15 $ — $ 15 Derivatives not designated as hedging instruments: Foreign currency contracts Other current assets 40 (40) — Total asset derivatives $ 55 $ (40) $ 15 Liability derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities $ 38 $ — $ 38 Derivatives not designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities 97 (40) 57 Total liability derivatives $ 135 $ (40) $ 95 September 30, 2020 (In millions) Balance Sheet Location Gross Counterparty and Cash Collateral Netting 1 Net Amounts Included in the interim Consolidated Balance Sheet Asset derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Other current assets $ 24 $ — $ 24 Derivatives not designated as hedging instruments: Foreign currency contracts Other current assets 101 (75) 26 Commodity contracts Other current assets 1 — 1 Total asset derivatives $ 126 $ (75) $ 51 Liability derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities $ 12 $ — $ 12 Derivatives not designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities 84 (69) 15 Commodity contracts Accrued and other current liabilities 1 — 1 Total liability derivatives $ 97 $ (69) $ 28
Effect of Derivatives	Amount of Gain (Loss) Recognized in OCI - Pre-Tax 1 Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Derivatives designated as hedging instruments: Net investment hedges: Foreign currency contracts $ 10 $ (20) $ 24 $ (16) Cash flow hedges: Foreign currency contracts 18 4 12 27 Commodity contracts (11) 14 117 (46) Total derivatives designated as hedging instruments $ 17 $ (2) $ 153 $ (35) 1. OCI is defined as other comprehensive income (loss). Amount of Gain (Loss) Recognized in Income - Pre-Tax 1 Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Derivatives designated as hedging instruments: Cash flow hedges: Foreign currency contracts 2 $ (10) $ 19 $ (11) $ 19 Commodity contracts 2 4 3 20 (32) Total derivatives designated as hedging instruments $ (6) $ 22 $ 9 $ (13) Derivatives not designated as hedging instruments: Foreign currency contracts 3 $ 34 $ (6) $ — $ 173 Foreign currency contracts 2 12 3 (16) 19 Commodity contracts 2 (1) — (18) 9 Total derivatives not designated as hedging instruments 45 (3) (34) 201 Total derivatives $ 39 $ 19 $ (25) $ 188 1. For cash flow hedges, this represents the portion of the gain (loss) reclassified from accumulated OCI into income during the period. 2. Recorded in cost of goods sold in the interim Consolidated Statements of Operations.
Schedule of Realized Gains (Losses)	Investing Results Nine Months Ended (In millions) 2021 Proceeds from sales of available-for-sale securities $ 226 Gross realized losses $ (7)
Commodity Contract [Member]
Derivative [Line Items]
After-Tax Effect of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Beginning balance $ 73 $ (16) $ (16) $ 2 Additions and revaluations of derivatives designated as cash flow hedges (10) 10 93 (34) Clearance of hedge results to earnings (4) (2) (18) 24 Ending balance $ 59 $ (8) $ 59 $ (8)
Foreign Currency Contract [Member]
Derivative [Line Items]
After-Tax Effect of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	Three Months Ended Nine Months Ended (In millions) 2021 2020 2021 2020 Beginning balance $ (21) $ 19 $ (17) $ — Additions and revaluations of derivatives designated as cash flow hedges 8 4 3 23 Clearance of hedge results to earnings 9 (17) 10 (17) Ending balance $ (4) $ 6 $ (4) $ 6

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities Measured on Recurring Basis	September 30, 2021 Significant Other Observable Inputs (In millions) Level 1 Level 2 Assets at fair value: Marketable securities $ — $ 103 Derivatives relating to: 2 Foreign currency — 57 Equity securities 3 75 — Total assets at fair value $ 75 $ 160 Liabilities at fair value: Derivatives relating to: 2 Foreign currency — 40 Total liabilities at fair value $ — $ 40 December 31, 2020 Significant Other Observable Inputs (In millions) Level 1 Level 2 Assets at fair value: Marketable securities $ — $ 43 Debt securities: U.S. treasuries 1 226 — Derivatives relating to: 2 Foreign currency — 55 Total assets at fair value $ 226 $ 98 Liabilities at fair value: Derivatives relating to: 2 Foreign currency — 135 Total liabilities at fair value $ — $ 135 September 30, 2020 Significant Other Observable Inputs (Level 2) (In millions) Assets at fair value: Marketable securities $ 152 Derivatives relating to: 2 Foreign currency 125 Commodity contracts 1 Total assets at fair value $ 278 Liabilities at fair value: Derivatives relating to: 2 Foreign currency 96 Commodity contracts 1 Total liabilities at fair value $ 97 1. The company's investments in debt securities, which are available-for-sale, are included in "marketable securities" in the interim Consolidated Balance Sheets. 2. See Note 16 - Financial Instruments for the classification of derivatives in the interim Consolidated Balance Sheets. 3. The company's equity securities are included in other assets in the interim Consolidated Balance Sheets.

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2021
Segment Reporting Information [Line Items]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	Reconciliation to interim Consolidated Financial Statements Income (loss) from continuing operations after income taxes to segment operating EBITDA (In millions) Three Months Ended Nine Months Ended 2021 2020 2021 2020 Income (loss) from continuing operations after income taxes $ 36 $ (390) $ 1,667 $ 657 (Benefit from) provision for income taxes on continuing operations (28) (117) 434 88 Income (loss) from continuing operations before income taxes 8 (507) 2,101 745 Depreciation and amortization 309 285 926 868 Interest income (19) (11) (58) (38) Interest expense 8 11 22 35 Exchange (gains) losses - net (2) 67 47 127 Non-operating benefits - net (315) (73) (941) (237) Mark-to-market (gains) losses on certain foreign currency contracts not designated as hedges 1 (19) 3 Significant items (21) 49 214 351 Corporate expenses 40 27 106 81 Segment operating EBITDA $ (11) $ (152) $ 2,420 $ 1,932 1. Effective January 1, 2021, on a prospective basis, the company excludes net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting. For the three and nine months ended September 30, 2020, the unrealized mark-to-market (loss) gain was $(8) million and $19 million, respectively. Refer to page 57 for further discussion of the company’s Non-GAAP financial measures.
Schedule of Segment Reporting Information, by Segment [Table Text Block]	As of and for the Three Months Ended September 30, (In millions) Seed Crop Protection Total 2021 Net sales $ 738 $ 1,633 $ 2,371 Segment operating EBITDA $ (217) $ 206 $ (11) Segment assets 1 $ 23,701 $ 12,539 $ 36,240 2020 Net sales $ 523 $ 1,340 $ 1,863 Segment operating EBITDA $ (282) $ 130 $ (152) Segment assets 1 $ 24,372 $ 12,593 $ 36,965 1. Segment assets at December 31, 2020 were $23,751 million and $13,099 million for Seed and Crop Protection, respectively. For the Nine Months Ended September 30, (In millions) Seed Crop Protection Total 2021 Net sales $ 7,010 $ 5,166 $ 12,176 Segment operating EBITDA $ 1,523 $ 897 $ 2,420 2020 Net sales $ 6,516 $ 4,494 $ 11,010 Segment operating EBITDA $ 1,255 $ 677 $ 1,932
Reconciliation of Assets from Segment to Consolidated [Table Text Block]	Segment assets to total assets (in millions) September 30, 2021 December 31, 2020 September 30, 2020 Total segment assets $ 36,240 $ 36,850 $ 36,965 Corporate assets 4,882 5,799 4,725 Total assets $ 41,122 $ 42,649 $ 41,690
Schedule of Additional Segment Details [Table Text Block]	(In millions) Seed Crop Protection Corporate Total For the Three Months Ended September 30, 2021 Restructuring and Asset Related Charges - Net 1 $ (9) $ (8) $ (9) $ (26) Equity securities mark-to-market gain 47 — — 47 Total $ 38 $ (8) $ (9) $ 21 (In millions) Seed Crop Protection Corporate Total For the Three Months Ended September 30, 2020 Restructuring and Asset Related Charges - Net 1 $ (9) $ (40) $ — $ (49) Total $ (9) $ (40) $ — $ (49) (In millions) Seed Crop Protection Corporate Total For the Nine Months Ended September 30, 2021 Restructuring and Asset Related Charges - Net 1 $ (145) $ (51) $ (65) $ (261) Equity securities mark-to-market gain 47 — — 47 Total $ (98) $ (51) $ (65) $ (214) (In millions) Seed Crop Protection Corporate Total For the Nine Months Ended September 30, 2020 Restructuring and Asset Related Charges - Net 1 $ (154) $ (98) $ (46) $ (298) Loss on Divestiture 2 — (53) — (53) Total $ (154) $ (151) $ (46) $ (351) 1. Includes Board approved restructuring plans and asset related charges as well as accelerated prepaid amortization expense. See Note 5 - Restructuring and Asset Related Charges - Net, to the interim Consolidated Financial Statements for additional information. 2. Includes a loss recorded in other income - net related to the sale of the La Porte site.

EID Segment FN (Tables)

EID Segment FN (Tables)	9 Months Ended
	Sep. 30, 2021
Segment Reporting Information [Line Items]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	Reconciliation to interim Consolidated Financial Statements Income (loss) from continuing operations after income taxes to segment operating EBITDA (In millions) Three Months Ended Nine Months Ended 2021 2020 2021 2020 Income (loss) from continuing operations after income taxes $ 36 $ (390) $ 1,667 $ 657 (Benefit from) provision for income taxes on continuing operations (28) (117) 434 88 Income (loss) from continuing operations before income taxes 8 (507) 2,101 745 Depreciation and amortization 309 285 926 868 Interest income (19) (11) (58) (38) Interest expense 8 11 22 35 Exchange (gains) losses - net (2) 67 47 127 Non-operating benefits - net (315) (73) (941) (237) Mark-to-market (gains) losses on certain foreign currency contracts not designated as hedges 1 (19) 3 Significant items (21) 49 214 351 Corporate expenses 40 27 106 81 Segment operating EBITDA $ (11) $ (152) $ 2,420 $ 1,932 1. Effective January 1, 2021, on a prospective basis, the company excludes net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting. For the three and nine months ended September 30, 2020, the unrealized mark-to-market (loss) gain was $(8) million and $19 million, respectively. Refer to page 57 for further discussion of the company’s Non-GAAP financial measures.
Reconciliation of Assets from Segment to Consolidated [Table Text Block]	Segment assets to total assets (in millions) September 30, 2021 December 31, 2020 September 30, 2020 Total segment assets $ 36,240 $ 36,850 $ 36,965 Corporate assets 4,882 5,799 4,725 Total assets $ 41,122 $ 42,649 $ 41,690
EID [Member]
Segment Reporting Information [Line Items]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	Income (loss) from continuing operations after income taxes to segment operating EBITDA (In millions) Three Months Ended Nine Months Ended 2021 2020 2021 2020 Income (loss) from continuing operations after income taxes $ 27 $ (404) $ 1,637 $ 595 (Benefit from) provision for income taxes on continuing operations (30) (122) 425 68 Income (loss) from continuing operations before income taxes (3) (526) 2,062 663 Depreciation and amortization 309 285 926 868 Interest income (19) (11) (58) (38) Interest expense 19 30 61 117 Exchange (gains) losses - net (2) 67 47 127 Non-operating benefits - net (315) (73) (941) (237) Mark-to-market (gains) losses on certain foreign currency contracts not designated as hedges 1 (19) 3 Significant items (21) 49 214 351 Corporate expenses 40 27 106 81 Segment operating EBITDA $ (11) $ (152) $ 2,420 $ 1,932

Summary of Significant Accoun_3

Summary of Significant Accounting Policies Summary of Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2021	Mar. 31, 2020
Foreign Exchange Impact on Income (Loss) from Continuing Operations	$ 20
Percentage deterioration of the official Peso to USD exchange rate	10.00%
Percentage annual sales and EBITDA	4.00%
Internal Reorganization [Member]
Reclassification of Divisional Equity to APIC		$ 40

Divestitures and Other Transa_2

Divestitures and Other Transactions Separation Agreements (Details) $ in Millions	Sep. 30, 2021USD ($)
Accounts and Notes Receivable [Member] | DuPont de Nemours [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Indemnification Assets	$ 25
Other Assets [Member] | DuPont de Nemours [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Indemnification Assets	70
Accrued and Other Current Liabilities [Member] | Dow [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Indemnified Liabilities	54
Other noncurrent obligations | DuPont de Nemours [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Indemnified Liabilities	76
Other noncurrent obligations | Dow [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Indemnified Liabilities	$ 14

Divestitures and Other Transa_3

Divestitures and Other Transactions Other Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations after income taxes	$ (4)	$ 0	$ (59)	$ 1

Revenue Narrative (Details)

Revenue Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 122	$ 115	$ 114
Minimum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	6 years

Revenue Contract Balances (Deta

Revenue Contract Balances (Details) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Accounts and notes receivable - trade	[1]	$ 4,744	$ 4,638	$ 3,917
Contract assets - current	[2]	24	21	22
Contract assets - noncurrent	[3]	60	52	54
Deferred Revenue		692	402	2,662
Deferred revenue recognized during the period		2,454	2,195
Accrued and Other Current Liabilities [Member]
Disaggregation of Revenue [Line Items]
Deferred Revenue		692	402	2,662
Other noncurrent obligations
Disaggregation of Revenue [Line Items]
Deferred Revenue	[4]	$ 111	$ 106	$ 116
[1]	Included in accounts and notes receivable - net in the interim Consolidated Balance Sheets.
[2]	Included in other current assets in the interim Consolidated Balance Sheets.
[3]	Included in other assets in the interim Consolidated Balance Sheets.
[4]	Included in other noncurrent obligations in the interim Consolidated Balance Sheets.

Revenue Disaggregation of Reven

Revenue Disaggregation of Revenue - Principal Product Groups (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Net Sales	$ 2,371	$ 1,863	$ 12,176	$ 11,010
Seed [Member]
Disaggregation of Revenue [Line Items]
Net Sales	738	523	7,010	6,516
Seed [Member] | Corn [Member]
Disaggregation of Revenue [Line Items]
Net Sales	437	303	4,505	4,224
Seed [Member] | Soybean [Member]
Disaggregation of Revenue [Line Items]
Net Sales	157	116	1,494	1,382
Seed [Member] | Other oilseeds [Member]
Disaggregation of Revenue [Line Items]
Net Sales	94	62	661	529
Seed [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net Sales	50	42	350	381
Crop Protection [Member]
Disaggregation of Revenue [Line Items]
Net Sales	1,633	1,340	5,166	4,494
Crop Protection [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net Sales	96	101	257	247
Crop Protection [Member] | Herbicides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	782	583	2,737	2,315
Crop Protection [Member] | Insecticides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	416	395	1,261	1,218
Crop Protection [Member] | Fungicides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	$ 339	$ 261	$ 911	$ 714

Revenue Disaggregation of Rev_2

Revenue Disaggregation of Revenue - Geography (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Net Sales		$ 2,371	$ 1,863	$ 12,176	$ 11,010
Seed [Member]
Disaggregation of Revenue [Line Items]
Net Sales		738	523	7,010	6,516
Seed [Member] | North America
Disaggregation of Revenue [Line Items]
Net Sales	[1]	168	97	4,482	4,290
Seed [Member] | EMEA
Disaggregation of Revenue [Line Items]
Net Sales	[2]	153	117	1,398	1,262
Seed [Member] | Latin America
Disaggregation of Revenue [Line Items]
Net Sales		334	246	842	668
Seed [Member] | Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales		83	63	288	296
Crop Protection [Member]
Disaggregation of Revenue [Line Items]
Net Sales		1,633	1,340	5,166	4,494
Crop Protection [Member] | North America
Disaggregation of Revenue [Line Items]
Net Sales	[1]	422	390	1,693	1,528
Crop Protection [Member] | EMEA
Disaggregation of Revenue [Line Items]
Net Sales	[2]	237	198	1,304	1,163
Crop Protection [Member] | Latin America
Disaggregation of Revenue [Line Items]
Net Sales		763	559	1,361	1,086
Crop Protection [Member] | Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales		$ 211	$ 193	$ 808	$ 717
[1]	Represents U.S. & Canada.
[2]	Europe, Middle East, and Africa ("EMEA").

Restructuring and Asset Relat_3

Restructuring and Asset Related Charges - 2021 Restructuring Activities (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021		Sep. 30, 2020	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset related charges, net		$ 26	$ 49	$ 261		$ 298
2021 Restructuring Actions [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		150		150
Asset Retirement Obligation		6		6
Payments for Restructuring				(40)
Asset write-offs and adjustments				(29)
Restructuring Reserve		58		58			$ 0
Restructuring and Asset related charges, net		17		127
Severance and Related Benefit Costs | 2021 Restructuring Actions [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		65		65
Payments for Restructuring				(14)
Asset write-offs and adjustments				0
Restructuring Reserve		44		44			0
Restructuring and Asset related charges, net		9		58
Asset Related Charges [Member] | 2021 Restructuring Actions [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		35		35
Payments for Restructuring	[1]			0
Asset write-offs and adjustments	[1]			(29)
Restructuring Reserve	[1]	0		0			0
Restructuring and Asset related charges, net		7		29	[1]
Asset Retirement Obligation Costs [Member] | 2021 Restructuring Actions [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		10		10
Contract Termination | 2021 Restructuring Actions [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		40		40
Restructuring and Asset related charges, net		1		40
Costs Associated with Exit and Disposal Activities | 2021 Restructuring Actions [Domain]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	[2]			(26)
Asset write-offs and adjustments	[2]			0
Restructuring Reserve	[2]	14		14			$ 0
Restructuring and Asset related charges, net	[2]			40
Seed [Member] | 2021 Restructuring Actions [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset related charges, net		4		21
Crop Protection [Member] | 2021 Restructuring Actions [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset related charges, net		4		41
Corporate Segment | 2021 Restructuring Actions [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset related charges, net		$ 9		$ 65
[1]	In addition, the company has a liability recorded for asset retirement obligations of $6 million as of September 30, 2021.
[2]	The liability for contract terminations includes lease obligations. The cash impact of these obligations will be substantially complete by 2022

Restructuring and Asset Relat_4

Restructuring and Asset Related Charges Execute to Win Productivity Program (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		15 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Mar. 31, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset related charges, net	$ 26	$ 49	$ 261	$ 298
Execute to Win Productivity Program [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance			56
Payments for Restructuring			(27)
Asset write-offs and adjustments			(10)
Asset Retirement Obligation	18		18
Restructuring Reserve, Ending Balance	29		29
Restructuring and Asset related charges, net	4	30	10	134
Restructuring and Asset Related Charges - Net					$ 186
Severance and Related Benefit Costs | Execute to Win Productivity Program [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance			53
Payments for Restructuring			(24)
Asset write-offs and adjustments			0
Restructuring Reserve, Ending Balance	29		29
Restructuring and Asset related charges, net	0	0	0	46
Restructuring and Asset Related Charges - Net					63
Asset Related Charges [Member] | Execute to Win Productivity Program [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance			3
Payments for Restructuring			(3)
Asset write-offs and adjustments			(10)
Restructuring Reserve, Ending Balance	0		0
Restructuring and Asset related charges, net	4	30	10	88
Restructuring and Asset Related Charges - Net					$ 123
Seed [Member] | Execute to Win Productivity Program [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset related charges, net	0	0	0	3
Crop Protection [Member] | Execute to Win Productivity Program [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset related charges, net	4	30	10	85
Corporate | Execute to Win Productivity Program [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset related charges, net	$ 0	$ 0	$ 0	$ 46

Restructuring and Asset Relat_5

Restructuring and Asset Related Charges Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Other Asset Related [Member]
Restructuring Cost and Reserve [Line Items]
Accelerated Prepaid Royalty Amortization Expense	$ 5	$ 124

Related Party Transactions Dow

Related Party Transactions Dow Intercompany Transactions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Corteva [Member] | EID [Member]
Related Party Transaction [Line Items]
Interest Expense, Related Party	$ 11	$ 19	$ 39	$ 82

Supplementary Information Other

Supplementary Information Other Income (Expense) - Net (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Equity in (losses) / earnings of affiliates - net		$ (1)	$ 0	$ 4	$ (3)
Net gain (loss) on sales of businesses and other assets	[1]	1	1	2	(29)
Net exchange gains (losses)	[2]	2	(67)	(47)	(127)
Non-operating pension and other post employment benefit credit	[3]	326	93	979	275
Miscellaneous expenses - net	[4]	31	(8)	17	(34)
Other income - net		378	30	1,013	120
Interest income		19	11	58	38
Hedging Program [Member]
Net exchange gains (losses)		34	(6)	0	173
Hedging Program [Member] | Argentine Peso Devaluation [Member]
Net exchange gains (losses)		(16)	(26)	(53)	(56)
Subsidiary Monetary Position
Net exchange gains (losses)		(32)	(61)	(47)	(300)
Segment Reconciling Items [Member]
Net exchange gains (losses)		(2)	67	47	127
Non-operating pension and other post employment benefit credit		(315)	(73)	(941)	(237)
Gain (Loss) on Disposition of Assets	[5]				(53)
Interest income		$ (19)	$ (11)	$ (58)	(38)
Segment Reconciling Items [Member] | Crop Protection [Member]
Gain (Loss) on Disposition of Assets					(53)
Sale of JV [Member] | Segment Reconciling Items [Member] | Crop Protection [Member]
Gain (Loss) on Disposition of Assets	[5]				$ (53)
[1]	The nine months ended September 30, 2020 includes a loss of $(53) million relating to the sale of the La Porte site, for which the company signed an agreement in 2020, and closed during the first quarter of 2021.
[2]	Includes net pre-tax exchange losses of $(16) million and $(53) million associated with the devaluation of the Argentine peso for the three and nine months ended September 30, 2021, respectively, and $(26) million and $(56) million for the three and nine months ended September 30, 2020, respectively.
[3]	Includes non-service related components of net periodic benefit credits (costs) (interest cost, expected return on plan assets, amortization of unrecognized gain (loss), amortization of prior service benefit and settlement loss).
[4]	Miscellaneous expense - net for the three and nine months ended September 30, 2021 and 2020 includes losses on sale of receivables, tax indemnification adjustments related to changes in indemnification balances as a result of the application of the terms of the Tax Matters Agreement between Corteva and Dow and/or DuPont, and other items. Miscellaneous expense - net for the three and nine months ended September 30, 2021 also includes a gain from remeasurement of an equity investment and for the nine months ended September 30, 2021 includes realized losses on sale of available-for-sale securities.
[5]	Includes a loss recorded in other income - net related to the sale of the La Porte site.

Supplementary Information Forei

Supplementary Information Foreign Currency Exchange Gain (Loss) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (losses) gains - net	[1]	$ 2	$ (67)	$ (47)	$ (127)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit		(5)	18	(11)	3
Foreign Currency Transaction (Loss) Gain After Tax		(3)	(49)	(58)	(124)
Subsidiary Monetary Position
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (losses) gains - net		(32)	(61)	(47)	(300)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit		3	16	(11)	44
Foreign Currency Transaction (Loss) Gain After Tax		(29)	(45)	(58)	(256)
Hedging Program [Member]
Foreign Currency Exchange Gain (Loss) [Line Items]
Pre-tax exchange (losses) gains - net		34	(6)	0	173
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit		(8)	2	0	(41)
Foreign Currency Transaction (Loss) Gain After Tax		$ 26	$ (4)	$ 0	$ 132
[1]	Includes net pre-tax exchange losses of $(16) million and $(53) million associated with the devaluation of the Argentine peso for the three and nine months ended September 30, 2021, respectively, and $(26) million and $(56) million for the three and nine months ended September 30, 2020, respectively.

Supplementary Information Recon

Supplementary Information Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Sep. 30, 2021		Dec. 31, 2020	Sep. 30, 2020		Dec. 31, 2019
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 2,779		$ 3,526	$ 2,768
Cash, Cash Equivalents and Restricted Cash, Total Company	3,140	[1]	3,873	3,122	[1]	$ 2,173
Other Current Assets [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash	$ 361		$ 347	$ 354
[1]	See page 17 for reconciliation of cash and cash equivalents and restricted cash equivalents presented in interim Consolidated Balance Sheets to total cash, cash equivalents and restricted cash equivalents presented in the interim Consolidated Statements of Cash Flows.

Income Taxes Income Tax Narrati

Income Taxes Income Tax Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Net tax benefits associated with changes in accruals	$ 32	$ 58
Tax Benefit associated with U.S. Research and Development Tax Credits	$ 22	$ 22
Tax benefit related to an elective change in accounting method for the impact of the Act's foreign tax provisions			$ 51
Tax benefit related to the impact of recent tax law enactment in foreign jurisdictions			$ 14

Earnings Per Share Net Income f

Earnings Per Share Net Income for Earnings Per Share Calculations - Basic and Diluted (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Income (loss) from continuing operations after income taxes	$ 36	$ (390)	$ 1,667	$ 657
Net income (loss) Attributable to Noncontrolling Interest, Continuing Operations	2	2	8	18
Net income (loss) from Continuing Operations Available to Common Shareholders	34	(392)	1,659	639
Income (loss) from discontinued operations after income taxes	(4)	0	(59)	1
Net income (loss) Available to Common Stockholders	$ 30	$ (392)	$ 1,600	$ 640

Earnings Per Share Earnings Per

Earnings Per Share Earnings Per Share Calculations - Basic (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Basic earnings (loss) per share of common stock from continuing operations	$ 0.05	$ (0.52)	$ 2.25	$ 0.85
Basic earnings (loss) per share of common stock from discontinued operations	$ (0.01)	$ 0	$ (0.08)	$ 0
Basic earnings (loss) per share of common stock	$ 0.04	$ (0.52)	$ 2.17	$ 0.85

Earnings Per Share Earnings P_2

Earnings Per Share Earnings Per Share Calculations - Diluted (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Diluted earnings (loss) per share of common stock from continuing operations	$ 0.05	$ (0.52)	$ 2.23	$ 0.85
Diluted earnings (loss) per share of common stock from discontinued operations	$ (0.01)	$ 0	$ (0.08)	$ 0
Diluted earnings (loss) per share of common stock	$ 0.04	$ (0.52)	$ 2.15	$ 0.85

Earnings Per Share Share Count

Earnings Per Share Share Count Information (Details) - shares		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Earnings Per Share [Line Items]
Weighted Average Common Shares - basic		733,800,000	749,500,000	738,100,000	749,500,000
Dilutive effect of equity compensation plans	[1]	5,700,000	0	5,900,000	2,500,000
Weighted Average Common Shares - diluted		739,500,000	749,500,000	744,000,000	752,000,000
Potential shares of common stock excluded from EPS calculations	[2]	3,000,000	14,600,000	3,100,000	9,700,000
Common Stock, Shares Authorized		1,666,667,000	1,666,667,000	1,666,667,000	1,666,667,000	1,666,667,000
[1]	Diluted earnings per share considers the impact of potentially dilutive securities except in periods in which there is a loss because the inclusion of the potential common shares would have an anti-dilutive effect.
[2]	These outstanding potential shares of common stock relating to stock options, restricted stock units and performance-based restricted stock units were excluded from the calculation of diluted earnings per share because the effect of including them would have been anti-dilutive.

Accounts and Notes Receivable_3

Accounts and Notes Receivable (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable - trade	[1]	$ 3,336	$ 3,231	$ 3,336	$ 3,231	$ 3,754
Notes receivable - trade	[1],[2]	1,408	1,407	1,408	1,407	163
Other	[3]	1,074	989	1,074	989	1,009
Accounts and notes receivable - net		5,818	5,627	5,818	5,627	4,926
Accounts Receivable, Allowance for Credit Loss, Current		210	210	210	210	208	$ 174
Due from Affiliates		84	92	84	92	106
Factoring Agreement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade Receivables Sold		70	44	257	221
Trade receivables sold the remain outstanding with an element of recourse		173	178	173	178	$ 157
Loss on Sale of Accounts Receivable		$ 11	$ 11	$ 54	$ 49
[1]	Accounts receivable – trade and notes receivable - trade are net of allowances of $210 million at September 30, 2021, $208 million at December 31, 2020, and $210 million at September 30, 2020. Allowances are equal to the estimated uncollectible amounts and are based on the expected credit losses and were developed using a loss-rate method.
[2]	Notes receivable – trade primarily consists of receivables for deferred payment loan programs for the sale of seed products to customers. These loans have terms of one year or less and are primarily concentrated in North America. The company maintains a rigid pre-approval process for extending credit to customers in order to manage overall risk and exposure associated with credit losses. As of September 30, 2021, December 31, 2020, and September 30, 2020 there were no significant impairments related to current loan agreements.
[3]	Other includes receivables in relation to indemnification assets, value added tax, general sales tax and other taxes. No individual group represents more than 10 percent of total receivables. In addition, Other includes amounts due from nonconsolidated affiliates of $84 million, $106 million, and $92 million as of September 30, 2021, December 31, 2020, and September 30, 2020, respectively.

Accounts and Notes Receivable A

Accounts and Notes Receivable Allowance Rollforward (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Receivables [Abstract]
Accounts Receivable, Allowance for Credit Loss, Beginning Balance	$ 208	$ 174
Net provision for credit losses1	(7)	54	[1]
Write-offs charged against allowance / other1		(18)
Other deductions against allowance	9
Accounts Receivable, Allowance for Credit Loss, Ending Balance	$ 210	$ 210
[1]	Prior year classifications in the changes in the allowance for doubtful receivables have been revised. Revisions did not impact the amount of the provision or the allowance for doubtful receivables recorded in the interim Consolidated Statements of Operations or the interim Consolidated Balance Sheets.

Inventories Schedule of Invento

Inventories Schedule of Inventory (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Inventory [Line Items]
Finished Products	$ 1,871	$ 2,584	$ 2,074
Semi-finished Products	2,028	1,813	1,878
Raw Materials and Supplies	518	485	422
Total inventories	$ 4,417	$ 4,882	$ 4,374

Property, Plant and Equipment S

Property, Plant and Equipment Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 8,270	$ 8,253	$ 7,985
Accumulated Depreciation	$ (3,960)	$ (3,857)	$ (3,712)

Other Intangible Assets Other I

Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2020	Sep. 30, 2021	Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		$ 10,735	$ 12,600	$ 12,599
Finite-Lived Intangible Assets, Accumulated Amortization		(1,702)	(2,385)	(1,862)
Finite-Lived Intangible Assets, Net		9,033	10,215	10,737
Indefinite-lived Intangible Assets (Excluding Goodwill)		1,881	10	10
Intangible Assets, Gross (Excluding Goodwill)		12,616	12,610	12,609
Total other intangible assets		10,914	10,225	10,747
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		54
Impairment of Intangible Assets Indefinite lived Excluding Goodwill After Tax		41
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	[1]	1,871
In Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)		10	10	10
Germplasm [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		6,265	6,265	6,265
Finite-Lived Intangible Assets, Accumulated Amortization		(253)	(507)	(317)
Finite-Lived Intangible Assets, Net		6,012	5,758	5,948
Customer-Related Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		1,966	1,956	1,984
Finite-Lived Intangible Assets, Accumulated Amortization		(352)	(460)	(380)
Finite-Lived Intangible Assets, Net		1,614	1,496	1,604
Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		1,463	1,485	1,451
Finite-Lived Intangible Assets, Accumulated Amortization		(499)	(641)	(525)
Finite-Lived Intangible Assets, Net		964	844	926
Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[1]	161	2,012	2,019
Finite-Lived Intangible Assets, Accumulated Amortization	[1]	(86)	(152)	(99)
Finite-Lived Intangible Assets, Net	[1]	75	1,860	1,920
Favorable Supply Contract [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		475	475	475
Finite-Lived Intangible Assets, Accumulated Amortization		(279)	(373)	(302)
Finite-Lived Intangible Assets, Net		196	102	173
Other Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	[2]	405	407	405
Finite-Lived Intangible Assets, Accumulated Amortization	[2]	(233)	(252)	(239)
Finite-Lived Intangible Assets, Net	[2]	$ 172	$ 155	$ 166
[1]	Beginning on October 1, 2020, the company changed its indefinite life assertion of its trade name asset to definite lived with a useful life of 25 years. This change is the result of the launch of Brevant TM seed in the retail channel in the U.S. Prior to changing the useful life of the trade name asset, the company tested the asset for impairment under ASC 350- Intangibles, Goodwill and Other, concluding the asset was not impaired.
[2]	Primarily consists of sales and farmer networks, marketing and manufacturing alliances and noncompetition agreements.

Other Intangible Assets Future

Other Intangible Assets Future Amortization Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 180	$ 162	$ 543	$ 501
Continuing Operations [Member]
Finite-Lived Intangible Assets [Line Items]
Pre-tax amortization expense, remainder of 2021	178		178
Pre-tax amortization expense, 2022	700		700
Pre-tax amortization expense, 2023	620		620
Pre-tax amortization expense, 2024	606		606
Pre-tax amortization expense, 2025	569		569
Pre-tax amortization expense, 2026	$ 558		$ 558

Short-Term Borrowings, Long-T_3

Short-Term Borrowings, Long-Term Debt and Available Credit Facilities Short-term borrowings and finance lease obligations (Details) - USD ($) $ in Millions	Sep. 30, 2021	Feb. 09, 2021	Dec. 31, 2020	Sep. 30, 2020
Short-term Debt [Line Items]
Long-term Debt Payable within one year	$ 1		$ 1	$ 1
Finance Lease, Liability, Current	1		1	1
Short-term borrowings and finance lease obligations	1,372		3	2,142
Commercial Paper [Member]
Short-term Debt [Line Items]
Short-term borrowings	802		0	926
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Short-term borrowings		$ 1,000
Other loans - various currencies [Member]
Short-term Debt [Line Items]
Short-term borrowings	18		1	39
Repurchase Agreements [Member] | Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Short-term borrowings	$ 550		$ 0	$ 1,175

Short-Term Borrowings, Long-T_4

Short-Term Borrowings, Long-Term Debt and Available Credit Facilities Long-term Debt (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	May 31, 2020
Debt Instrument [Line Items]
Long-term Debt Payable within one year	$ 1	$ 1	$ 1
Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				1.70%
Long-term Debt, Gross				$ 500
Senior Notes Due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				2.30%
Long-term Debt, Gross				$ 500
Fair Value, Inputs, Level 2 [Member]
Debt Instrument [Line Items]
Long-term Debt, Fair Value	$ 1,134	$ 1,168	$ 1,164

Short-Term Borrowings, Long-T_5

Short-Term Borrowings, Long-Term Debt and Available Credit Facilities Repurchase Facility and Revolving Credit Facilities (Details) $ in Millions	9 Months Ended		36 Months Ended	60 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Nov. 13, 2021	Nov. 13, 2023	Feb. 09, 2021USD ($)	Dec. 31, 2020USD ($)	Jun. 30, 2020USD ($)	Nov. 13, 2018USD ($)
Line of Credit Facility [Line Items]
Proceeds from debt	$ 419	$ 2,434
Repayments of Long-term Debt	1	879
Revolving Credit Facilities due 2024 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								$ 3,000
Revolving Credit Facilities due 2022 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								$ 3,000
Long-term Line of Credit							$ 500
Line of Credit Facility, Remaining Borrowing Capacity	3,000
Securities Sold under Agreements to Repurchase [Member]
Line of Credit Facility [Line Items]
Short-term borrowings					$ 1,000
Percentage of outstanding amounts borrowed utilized as collateral					105.00%
Interest rate in addition to LIBOR					0.85%
Securities Sold under Agreements to Repurchase [Member] | Repurchase Agreements [Member]
Line of Credit Facility [Line Items]
Short-term borrowings	550	$ 1,175				$ 0
Revolving Credit Facilities due 2022 [Member]
Line of Credit Facility [Line Items]
Ratio of Indebtedness to Net Capital								0.60
Accounts and Notes Receivable [Member] | Securities Sold under Agreements to Repurchase [Member] | Repurchase Agreements [Member]
Line of Credit Facility [Line Items]
Pledged Financial Instruments, Not Separately Reported, Loans Receivable Pledged as Collateral	$ 578
Forecast [Member] | Revolving Credit Facilities due 2024 [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Term				5 years
Forecast [Member] | Revolving Credit Facilities due 2022 [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Term			3 years

Commitments and Contingent Li_3

Commitments and Contingent Liabilities Guarantee Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Guarantor Obligations [Line Items]
Guarantee Obligations	$ 107	$ 94	$ 96
Factoring Agreement [Member]
Guarantor Obligations [Line Items]
Guarantee Obligations	22	17	20
Agreements with lenders to provide financing for select customers [Member]
Guarantor Obligations [Line Items]
Accounts Receivable, after Allowance for Credit Loss	$ 615	$ 16	$ 637

Commitments and Contingent Li_4

Commitments and Contingent Liabilities Chemours (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)	Jun. 30, 2018USD ($)	Sep. 30, 2021USD ($)	Mar. 31, 2029USD ($)	Dec. 31, 2028USD ($)	Mar. 31, 2023USD ($)	Dec. 31, 2017lawsuits
Settlement Agreement
Loss Contingencies [Line Items]
Income (loss) from discontinued operations before income taxes	$ 11
Performance Chemicals
Loss Contingencies [Line Items]
Income (loss) from discontinued operations before income taxes	8		$ 45
PFAS [Member]
Loss Contingencies [Line Items]
Escrow Account Balance					$ 700
PFAS [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Cost Sharing Arrangement Term			20 years
Qualified Spend and Escrow Account Contribution Threshold	4,000		$ 4,000
Corteva and DuPont stray liability threshold for PFAS	300		300
PFOA Matters: Multi-District Litigation [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party		$ 670.7
Lawsuits alleging personal injury filed | lawsuits							3,550
DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Amount credited to each company's threshold	$ 150		$ 150
Chemours [Member] | PFAS [Member]
Loss Contingencies [Line Items]
Annual Escrow Deposit						$ 100
Annual Escrow Deposit, remainder of period				$ 50
Chemours [Member] | PFAS [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Total Escrow Deposit Amount				500
Corteva [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage	29.00%		29.00%
Corteva [Member] | PFAS [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage for PFAS	50.00%		50.00%
Corteva [Member] | DuPont de Nemours [Member] | PFAS [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage for PFAS	50.00%		50.00%
Annual Escrow Deposit						$ 100
Annual Escrow Deposit, remainder of period				50
Escrow Account Deposit Percentage	50.00%		50.00%
Corteva [Member] | DuPont de Nemours [Member] | PFAS [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Qualified Spend and Escrow Account Contribution Threshold	$ 2,000		$ 2,000
Total Escrow Deposit Amount				$ 500
DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage	71.00%		71.00%
DuPont de Nemours [Member] | PFAS [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage for PFAS	50.00%		50.00%
DuPont de Nemours [Member] | DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Corteva and DuPont stray liability threshold for PFAS	$ 200		$ 200

Commitments and Contingent Li_5

Commitments and Contingent Liabilities DuPont (Details)	Sep. 30, 2021USD ($)
PFAS [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Corteva and DuPont stray liability threshold for PFAS	$ 1
PFAS [Member] | Minimum [Member] | Once $300 million threshold is met [Member]
Loss Contingencies [Line Items]
De minimis threshold	1,000,000
PFAS [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Corteva and DuPont stray liability threshold for PFAS	300,000,000
DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Amount credited to each company's threshold	$ 150,000,000
Corteva [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage	29.00%
Corteva [Member] | PFAS [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage for PFAS	50.00%
Corteva [Member] | DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Stray liability threshold	$ 200,000,000
Corteva [Member] | DuPont de Nemours [Member] | PFAS [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage for PFAS	50.00%
DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage	71.00%
DuPont de Nemours [Member] | PFAS [Member]
Loss Contingencies [Line Items]
Stray liability sharing percentage for PFAS	50.00%
DuPont de Nemours [Member] | DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Stray liability threshold	$ 200,000,000
Corteva and DuPont stray liability threshold for PFAS	$ 200,000,000

Commitments and Contingent Li_6

Commitments and Contingent Liabilities PFOA / Leach Settlement (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2018USD ($)	Sep. 30, 2021USD ($)lawsuits	Dec. 31, 2004USD ($)	Dec. 31, 2017lawsuits	Jan. 01, 2012
MDL Settlement [Domain]
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party		$ 83,000,000
DuPont de Nemours and Corteva Contribution to MDL Settlement
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party		27,000,000
Payments for Legal Settlements		27,000,000
PFAS [Member] | Chemours [Member]
Loss Contingencies [Line Items]
Chemours Contribution to MDL Settlement		0.50
PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Binding Settlement Agreement Class Size			80,000
Loss Contingency, Number Of Water Districts Receiving Water Treatment					6
Litigation Settlement, Liability For Medical Monitoring Program, Threshold			$ 235,000,000
Litigation Settlement, Medical Monitoring Program, Escrow Account, Disbursements To Date		2,000,000
Escrow Balance		$ 1,000,000
PFOA Matters: Drinking Water Actions [Member] | WEST VIRGINIA AND OHIO [Domain] | Settled Litigation
Loss Contingencies [Line Items]
Loss Contingency, Claims Settled, Number | lawsuits		95,000,000
PFOA Matters: Drinking Water Actions [Member] | WEST VIRGINIA AND OHIO [Domain] | Compensatory damages [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party		$ 40,000,000
PFOA Matters: Drinking Water Actions [Member] | WEST VIRGINIA AND OHIO [Domain] | Loss of consortium [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party		$ 10,000,000
PFOA Matters: Multi-District Litigation [Member]
Loss Contingencies [Line Items]
Disease Categories for MDL		6
Lawsuits alleging personal injury filed | lawsuits				3,550
Litigation Settlement, Amount Awarded to Other Party	$ 670,700,000

Commitments and Contingent Li_7

Commitments and Contingent Liabilities Other PFOA Matters / Fayetteville (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021USD ($)lawsuits
Firefighting Foam [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number | lawsuits	1,760
Personal injury cases [Member] | Firefighting Foam [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	1,600
Municipal water districts | Firefighting Foam [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	96
Chemours Contribution to MDL Settlement
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party	$ 29
NEW YORK | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	50
NEW JERSEY | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number | lawsuits	2
NEW JERSEY | Natural Resources Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	4
OHIO | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number | lawsuits	3
NORTH CAROLINA | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Number of Property Owners	100
Loss Contingency, Number of Additional Plaintiffs	100
DELAWARE | Natural Resources Damages [Member] | Corteva [Member] | DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Threshold for payments to fund the NRST Trust	$ 50
Supplemental payment threshold	$ 25
Period for supplemental payment	8 years
Corteva and DuPont Share of NRST Trust Payment	$ 12.5
DELAWARE | Natural Resources Damages [Member] | Chemours [Member]
Loss Contingencies [Line Items]
Chemours share of payment to NRST Trust	$ 25
Chemours share of payment to NRST Trust, percentage	50.00%
NETHERLANDS | PFOA Matters: Drinking Water Actions [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number | lawsuits	4
Alabama Water Utility [Member] | Natural Resources Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	1

Commitments and Contingent Li_8

Commitments and Contingent Liabilities Environmental (Details) $ in Millions	Sep. 30, 2021USD ($)
Loss Contingencies [Line Items]
Indemnification Asset	$ 213
Accrual for Environmental Loss Contingencies	454	[1]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	586	[1]
Chemours related obligation subject to indemnification [Member]
Loss Contingencies [Line Items]
Indemnification Asset	156	[2],[3]
Accrual for Environmental Loss Contingencies	156	[1],[2],[3]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	266	[1],[2],[3]
Discontinued Operations [Member]
Loss Contingencies [Line Items]
Indemnification Asset	10	[2]
Other discontinued or divested business obligations [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	77	[1],[2]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	187	[1],[2]
Environmental remediation liabilities primarily related to DuPont - subject to indemnity from DuPont [Member]
Loss Contingencies [Line Items]
Indemnification Asset	38	[3]
Accrual for Environmental Loss Contingencies	38	[1],[3]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	64	[1],[3]
Not subject to indemnification [Member]
Loss Contingencies [Line Items]
Indemnification Asset	0
Accrual for Environmental Loss Contingencies	72	[1]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	49	[1]
Indemnification liabilities related to the MOU
Loss Contingencies [Line Items]
Indemnification Asset	9	[4]
Accrual for Environmental Loss Contingencies	111	[1],[4]
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual	20	[1],[2],[4]
DuPont de Nemours [Member] | DuPont de Nemours [Member]
Loss Contingencies [Line Items]
Stray liability threshold	200
Superfund Sites [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies	67
Superfund Sites [Member] | Chemours [Member] | Indemnification Agreement [Member]
Loss Contingencies [Line Items]
Indemnification Asset	$ 40
[1]	Accrual balance represents management’s best estimate of the costs of remediation and restoration, although it is reasonably possible that the potential exposure, as indicated, could range above the amounts accrued, as there are inherent uncertainties in these estimates. Accrual balances includes $67 million for remediation of Superfund sites. 4. Represents liabilities that are subject to the $150 million thresholds and sharing agreements as discussed on page 23, under the header "Chemours / Performance Chemicals."
[2]	Represents liabilities that are subject to the $200 million thresholds and sharing arrangements as discussed on page 24, under the header "Corteva Separation Agreement."
[3]	The company has recorded an indemnification asset related to these accruals, including $40 million related to the Superfund sites.
[4]	Represents liabilities that are subject to the $150 million thresholds and sharing agreements as discussed on page 23, under the header "Chemours / Performance Chemicals."

Stockholders' Equity Common Sto

Stockholders' Equity Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Aug. 05, 2021	Jul. 30, 2021	Dec. 31, 2020	Jun. 26, 2019
Class of Stock [Line Items]
Common Stock, Par Value	$ 0.01	$ 0.01	$ 0.01	$ 0.01		$ 0.01	$ 0.01
Repurchase of Common Stock			$ 750	$ 83
2019 Share Buyback Plan
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Shares	3,408	1,160	15,378	3,025
Stock Repurchase Program, Authorized Amount								$ 1,000
Repurchase of Common Stock	$ 150	$ 33	$ 700	$ 83
2021 Stock Repurchase Program
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Shares	1,167
Stock Repurchase Program, Authorized Amount					$ 1,500
Repurchase of Common Stock	$ 50
Corteva [Member]
Class of Stock [Line Items]
Common Stock, Par Value	$ 0.01		$ 0.01		$ 0.01

Stockholders' Equity Noncontrol

Stockholders' Equity Noncontrolling interests (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Noncontrolling Interest [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		46.50%
Payments for acquisition of subsidiary's interest from the non-controlling Interests	$ 0	$ (60)

Stockholders' Equity Preferred

Stockholders' Equity Preferred Stock (Details) - EID [Member] - USD ($)	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
$4.50 Series Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	23,000,000	23,000,000	23,000,000
Preferred Stock, Shares Issued	1,673,000	1,673,000	1,673,000
Preferred Stock, Redemption Amount	$ 120	$ 120	$ 120
$3.50 Series Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	23,000,000	23,000,000	23,000,000
Preferred Stock, Shares Issued	700,000	700,000	700,000
Preferred Stock, Redemption Amount	$ 102	$ 102	$ 102
Corteva [Member]
Class of Stock [Line Items]
Ownership interest in an entity	100.00%

Stockholders' Equity Other Comp

Stockholders' Equity Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		3 Months Ended								9 Months Ended
		Sep. 30, 2021		Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020		Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		$ 25,625		$ 24,778	$ 25,063	$ 24,801		$ 24,079	$ 24,555	$ 25,063	$ 24,555
Amounts Reclassified from Accumulated Other Comprehensive Loss		(141)				(17)				(444)	12
Other comprehensive (loss) income		(400)		122	(477)	49		88	(663)	(755)	(526)
Ending Balance		24,979		25,625	24,778	24,346		24,801	24,079	24,979	24,346
Accumulated Other Comprehensive Income (Loss), Net of Tax		(3,645)				(3,796)				(3,645)	(3,796)	$ (2,890)
Pension Plan
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive (Loss) Income, before Reclassifications, Net of Tax										(6)	(10)
Amounts Reclassified from Accumulated Other Comprehensive Loss										32	4
Other comprehensive (loss) income										26	(6)
Accumulated Other Comprehensive Income (Loss), Net of Tax		(1,407)				(1,253)				(1,407)	(1,253)	(1,433)	$ (1,247)
Other Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive (Loss) Income, before Reclassifications, Net of Tax										1	2
Amounts Reclassified from Accumulated Other Comprehensive Loss										(475)	1
Other comprehensive (loss) income										(474)	3
Accumulated Other Comprehensive Income (Loss), Net of Tax		116				(78)				116	(78)	590	(81)
Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive (Loss) Income, before Reclassifications, Net of Tax	[1]									(424)	(507)
Amounts Reclassified from Accumulated Other Comprehensive Loss										0	0
Other comprehensive (loss) income										(424)	(507)
Accumulated Other Comprehensive Income (Loss), Net of Tax		(2,394)				(2,451)				(2,394)	(2,451)	(1,970)	(1,944)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive (Loss) Income, before Reclassifications, Net of Tax										115	(23)
Amounts Reclassified from Accumulated Other Comprehensive Loss		5				(19)				(8)	7
Other comprehensive (loss) income										107	(16)
Accumulated Other Comprehensive Income (Loss), Net of Tax		40				(14)				40	(14)	(67)	2
Unrealized Gain (loss) on Investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance					(10)				0	(10)	0
Other Comprehensive (Loss) Income, before Reclassifications, Net of Tax										3	0
Amounts Reclassified from Accumulated Other Comprehensive Loss		0	[2]			0	[2]			7	0
Other comprehensive (loss) income										10	0
Ending Balance		0				0				0	0
Total
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(3,245)		(3,367)	(2,890)	(3,845)		(3,933)	(3,270)	(2,890)	(3,270)
Other Comprehensive (Loss) Income, before Reclassifications, Net of Tax										(311)	(538)
Amounts Reclassified from Accumulated Other Comprehensive Loss										(444)	12
Other comprehensive (loss) income		(400)		122	(477)	49		88	(663)	(755)	(526)
Ending Balance		(3,645)		$ (3,245)	$ (3,367)	(3,796)		$ (3,845)	$ (3,933)	(3,645)	(3,796)
Accumulated Other Comprehensive Income (Loss), Net of Tax		$ (3,645)				$ (3,796)				$ (3,645)	$ (3,796)	$ (2,890)	$ (3,270)
[1]	The cumulative translation adjustment loss for the nine months ended September 30, 2021 was primarily driven by strengthening of the USD against the European Euro ("EUR"), Swiss Franc ("CHF") and Brazilian Real ("BRL"). The cumulative translation adjustment loss for the nine months ended September 30, 2020 was primarily driven by strengthening of the USD against the Brazilian Real ("BRL") and the South African Rand ("ZAR") against the USD.
[2]	Reflected in other income - net in the interim Consolidated Statements of Operations.

Stockholders' Equity Tax Benefi

Stockholders' Equity Tax Benefit (Expense) on Net Activity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Tax Benefit (Expense)	$ 36	$ 4	$ 103	$ 3
Pension Plan
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Tax Benefit (Expense)	(3)	0	(8)	(3)
Other Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Tax Benefit (Expense)	51	0	148	0
Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Tax Benefit (Expense)	$ (12)	$ 4	$ (37)	$ 6

Stockholders' Equity Reclassifi

Stockholders' Equity Reclassifications out of AOCI (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2021		Sep. 30, 2020		Sep. 30, 2021	Sep. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from Accumulated Other Comprehensive Loss	$ (141)		$ (17)		$ (444)	$ 12
Other Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of Prior Service Benefit	(231)	[1],[2]	0	[1],[2]	(692)	0
Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from Accumulated Other Comprehensive Loss					32	4
Other Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from Accumulated Other Comprehensive Loss					(475)	1
Derivative Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	6	[3]	(22)	[3]	(9)	13
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax	(1)	[4]	3	[4]	1	(6)
Amounts Reclassified from Accumulated Other Comprehensive Loss	5		(19)		(8)	7
Actuarial (Gains) Losses | Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	14	[1],[2]	1	[1],[2]	41	3
Actuarial (Gains) Losses | Other Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	23	[1],[2]	1	[1],[2]	70	1
Settlement Loss | Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	0	[1],[2]	0	[1],[2]	1	3
Accumulated Defined Benefit Plans Adjustment Attributable to Parent | Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	14		1		41	5
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax	(3)	[4]	0	[4]	(9)	(1)
Amounts Reclassified from Accumulated Other Comprehensive Loss	11		1		32	4
Accumulated Defined Benefit Plans Adjustment Attributable to Parent | Other Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	(208)		1		(623)	1
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax	51	[4]	0	[4]	148	0
Amounts Reclassified from Accumulated Other Comprehensive Loss	(157)		1		(475)	1
Unrealized loss on investments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax	0	[4]	0	[4]	0	0
Amounts Reclassified from Accumulated Other Comprehensive Loss	0	[1]	0	[1]	7	0
Prior Service Benefit | Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	0		0		(1)	(1)
Accumulated Defined Benefit Plans Adjustment, Curtailment Gain (Loss) | Other Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	$ 0		$ 0		$ (1)	$ 0
[1]	Reflected in other income - net in the interim Consolidated Statements of Operations.
[2]	These accumulated other comprehensive (loss) income components are included in the computation of net periodic benefit credit of the company's pension and other benefit plans. See Note 15 - Pension Plans and Other Post Employment Benefits, for additional information.
[3]	Reflected in cost of goods sold in the interim Consolidated Statements of Operations.
[4]	Reflected in (benefit from) provision for income taxes from continuing operations in the interim Consolidated Statements of Operations.

Pension Plans and Other Post _3

Pension Plans and Other Post Employment Benefit Plans Components of net periodic benefit cost (credit) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	$ 7	$ 6	$ 19	$ 19
Interest Cost	91	139	273	420
Expected return on plan assets	(228)	(250)	(686)	(750)
Amortization of unrecognized loss (gain)	14	1	41	3
Amortization of Prior Service Benefit	0	0	(1)	(1)
Settlement/Curtailment Loss (Gain)	0	0	1	3
Defined Benefit Plan, Net Periodic Benefit (Credit) Cost	(116)	(104)	(353)	(306)
Other Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	1	0	1	1
Interest Cost	5	16	16	49
Amortization of unrecognized loss (gain)	23	1	70	1
Amortization of Prior Service Benefit	(231)	0	(692)	0
Defined Benefit Plan, Net Periodic Benefit (Credit) Cost	(202)	17	(606)	51
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment	$ 0	$ 0	$ (1)	$ 0

Financial Instruments Financial

Financial Instruments Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Cash Equivalents [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities	$ 2,108	$ 2,511	$ 1,986
Available - for- sale securities		226
Marketable Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities	$ 103	$ 43	$ 152

Financial Instruments Notional

Financial Instruments Notional Amounts (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 1,227	$ 1,164	$ 770
Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	262	383	51
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	1,164	647	924
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 7	$ 0	$ 0

Financial Instruments Cash Flow

Financial Instruments Cash Flow Hedges Included in AOCI (Details) € in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2021EUR (€)	Dec. 31, 2020USD ($)
Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Remaining Maturity			2 years
Beginning Balance	$ 73	$ (16)	$ (16)	$ 2
Additions and revaluations of derivatives designated as cash flow hedges	(10)	10	93	(34)
Clearance of hedge results to earnings	(4)	(2)	(18)	24
Ending Balance	59	(8)	59	(8)
After-tax net gain (loss) to be reclassified from AOCL into earnings over the next twelve months			(50)
Derivative, Notional Amount	262	51	$ 262	51		$ 383
Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Remaining Maturity			2 years
Beginning Balance	(21)	19	$ (17)	0
Additions and revaluations of derivatives designated as cash flow hedges	8	4	3	23
Clearance of hedge results to earnings	9	(17)	10	(17)
Ending Balance	(4)	6	(4)	6
After-tax net gain (loss) to be reclassified from AOCL into earnings over the next twelve months			11
Derivative, Notional Amount	$ 1,227	$ 770	$ 1,227	$ 770		$ 1,164
Net Investment Hedging [Member] | Foreign Currency Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount | €					€ 450

Financial Instruments Fair Valu

Financial Instruments Fair Value of Derivatives (Details) - USD ($) $ in Millions		Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Asset, Gross		$ 57	$ 55	$ 126
Derivative Asset, Counterparty and Cash Collateral Netting	[1]	(23)	(40)	(75)
Derivative Asset, Net		34	15	51
Derivative Liability, Gross		40	135	97
Derivative Liability, Counterparty and Cash Collateral Netting	[1]	(23)	(40)	(69)
Derivative Liability, Net		17	95	28
Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Other Current Assets [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Asset, Gross		20	15	24
Derivative Asset, Counterparty and Cash Collateral Netting	[1]	0	0	0
Derivative Asset, Net		20	15	24
Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Accrued and Other Current Liabilities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liability, Gross		9	38	12
Derivative Liability, Counterparty and Cash Collateral Netting	[1]	0	0
Derivative Liability, Net		9	38	12
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Other Current Assets [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Asset, Gross		37	40	101
Derivative Asset, Counterparty and Cash Collateral Netting	[1]	(23)	(40)	(75)
Derivative Asset, Net		14	0	26
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Accrued and Other Current Liabilities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liability, Gross		31	97	84
Derivative Liability, Counterparty and Cash Collateral Netting	[1]	(23)	(40)	(69)
Derivative Liability, Net		$ 8	$ 57	15
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] | Other Current Assets [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Asset, Gross				1
Derivative Asset, Net				1
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] | Accrued and Other Current Liabilities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Liability, Gross				1
Derivative Liability, Net				$ 1
[1]	Counterparty and cash collateral amounts represent the estimated net settlement amount when applying netting and set-off rights included in master netting arrangements between the company and its counterparties and the payable or receivable for cash collateral held or placed with the same counterparty.

Financial Instruments Effect of

Financial Instruments Effect of Derivative Instruments (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax	[1]	$ 39	$ 19	$ (25)	$ 188
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized in OCI- Pre Tax	[2]	17	(2)	153	(35)
Amount of gain (loss) recognized in Income - Pre-tax	[1]	(6)	22	9	(13)
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Foreign Currency Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized in OCI- Pre Tax	[2]	10	(20)	24	(16)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Currency Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized in OCI- Pre Tax	[2]	18	4	12	27
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Currency Contract [Member] | Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in Income - Pre-tax	[1],[3]	(10)	19	(11)	19
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (loss) gain recognized in OCI- Pre Tax	[2]	(11)	14	117	(46)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Commodity Contract [Member] | Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in Income - Pre-tax	[1],[3]	4	3	20	(32)
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in income - pre-tax	[1]	45	(3)	(34)	201
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in income - pre-tax	[1],[3]	12	3	(16)	19
Not Designated as Hedging Instrument [Member] | Foreign Currency Contract [Member] | Other Income - net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in income - pre-tax	[1],[4]	34	(6)	0	173
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] | Cost of Goods Sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in income - pre-tax	[1],[3]	$ (1)	$ 0	$ (18)	$ 9
[1]	For cash flow hedges, this represents the portion of the gain (loss) reclassified from accumulated OCI into income during the period.
[2]	OCI is defined as other comprehensive income (loss).
[3]	Recorded in cost of goods sold in the interim Consolidated Statements of Operations.
[4]	Gain recognized in other income (expense) - net was partially offset by the related gain on the foreign currency-denominated monetary assets and liabilities of the company's operations. See Note 6 - Supplementary Information, for additional information.

Financial Instruments- AFS Inve

Financial Instruments- AFS Investing Results (Details) - Available-for-sale Securities $ in Millions	9 Months Ended
	Sep. 30, 2021USD ($)
Debt Securities, Available-for-sale [Line Items]
Proceeds from sales of available-for-sale securities	$ 226
Gross realized losses	$ (7)

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Millions		Sep. 30, 2021		Dec. 31, 2020		Sep. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset		$ 57		$ 55		$ 126
Derivative Liability		40		135		97
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Equity Securities,	[1]	75
Assets at Fair Value		75		226
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 | US Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Debt Securities, Available-for-sale	[2]			226
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Assets at Fair Value		160		98		278
Liabilities at Fair Value		40		135		97
Marketable Securities		103		43		152
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Foreign Currency Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset		57	[3]	55	[3]	125
Derivative Liability		$ 40	[3]	$ 135	[3]	96
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commodity Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset	[3]					1
Derivative Liability	[3]					$ 1
[1]	The company's equity securities are included in other assets in the interim Consolidated Balance Sheets.
[2]	The company's investments in debt securities, which are available-for-sale, are included in "marketable securities" in the interim Consolidated Balance Sheets
[3]	See Note 16 - Financial Instruments for the classification of derivatives in the interim Consolidated Balance Sheets.3. The company's equity securities are included in other assets in the interim Consolidated Balance Sheets.

Segment Reporting Segment Infor

Segment Reporting Segment Information (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2021		Sep. 30, 2020		Sep. 30, 2021		Sep. 30, 2020		Dec. 31, 2020
Segment Reporting Information [Line Items]
Net Sales	$ 2,371		$ 1,863		$ 12,176		$ 11,010
Segment operating EBITDA	(11)		(152)		2,420		1,932
Segment Assets	36,240		36,965		36,240		36,965		$ 36,850
Seed [Member]
Segment Reporting Information [Line Items]
Net Sales	738		523		7,010		6,516
Segment operating EBITDA	(217)		(282)		1,523		1,255
Segment Assets	23,701	[1]	24,372	[1]	23,701	[1]	24,372	[1]	23,751
Crop Protection [Member]
Segment Reporting Information [Line Items]
Net Sales	1,633		1,340		5,166		4,494
Segment operating EBITDA	206		130		897		677
Segment Assets	$ 12,539	[1]	$ 12,593	[1]	$ 12,539	[1]	$ 12,593	[1]	$ 13,099
[1]	Segment assets at December 31, 2020 were $23,751 million and $13,099 million for Seed and Crop Protection, respectively.

Segment Reporting Segment Recon

Segment Reporting Segment Reconciliation (Details) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2021		Sep. 30, 2020	Sep. 30, 2021		Sep. 30, 2020
Segment Reporting Information [Line Items]
Income (loss) from continuing operations after income taxes		$ 36		$ (390)	$ 1,667		$ 657
(Benefit from) provision for income taxes on continuing operations		(28)		(117)	434		88
Income from continuing operations before income taxes		8		(507)	2,101		745
Interest income		19		11	58		38
Interest Expense		8		11	22		35
Exchange (gains) losses - net	[1]	2		(67)	(47)		(127)
Mark-to-market gain (loss) on certain foreign currency contracts not designated as hedges				27
Significant Items		(21)		49	214		351
Corporate Expenses		40		27	106		81
Segment operating EBITDA		(11)		(152)	2,420		1,932
Non-operating pension and other post employment benefit credit	[2]	326		93	979		275
EID [Member]
Segment Reporting Information [Line Items]
(Benefit from) provision for income taxes on continuing operations		(30)		(122)	425		68
Income from continuing operations before income taxes		(3)		(526)	2,062		663
Depreciation and Amortization		309		285	926		868
Interest Expense		19		30	61		117
Mark-to-market gain (loss) on certain foreign currency contracts not designated as hedges		19	[3]	(8)	(3)	[3]	19
Significant Items		(21)		49	214		351
Corporate Expenses		40		27	106		81
Segment operating EBITDA		(11)		(152)	2,420		1,932
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Depreciation and Amortization		309		285	926		868
Interest income		(19)		(11)	(58)		(38)
Exchange (gains) losses - net		(2)		67	47		127
Mark-to-market gain (loss) on certain foreign currency contracts not designated as hedges	[4]	19			(3)
Significant Items		21		(49)	(214)		(351)
Non-operating pension and other post employment benefit credit		(315)		(73)	(941)		(237)
Segment Reconciling Items [Member] | EID [Member]
Segment Reporting Information [Line Items]
Interest income		(19)		(11)	(58)		(38)
Exchange (gains) losses - net		$ (2)		$ 67	$ 47		$ 127
[1]	Includes net pre-tax exchange losses of $(16) million and $(53) million associated with the devaluation of the Argentine peso for the three and nine months ended September 30, 2021, respectively, and $(26) million and $(56) million for the three and nine months ended September 30, 2020, respectively.
[2]	Includes non-service related components of net periodic benefit credits (costs) (interest cost, expected return on plan assets, amortization of unrecognized gain (loss), amortization of prior service benefit and settlement loss).
[3]	Effective January 1, 2021, on a prospective basis, the company excludes net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting. For the three and six months ended September 30, 2020, the unrealized mark-to-market (loss) gain was $(8) million and $19 million, respectively.
[4]	Effective January 1, 2021, on a prospective basis, the company excludes net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting. For the three and nine months ended September 30, 2020, the unrealized mark-to-market (loss) gain was $(8) million and $19 million, respectively. Refer to page 57 for further discussion of the company’s Non-GAAP financial measures.

Segment Reporting Segment Asset

Segment Reporting Segment Asset Reconciliation (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Segment Reporting [Abstract]
Segment Assets	$ 36,240	$ 36,850	$ 36,965
Corporate Assets	4,882	5,799	4,725
Total Assets	$ 41,122	$ 42,649	$ 41,690

Segment Reporting Significant I

Segment Reporting Significant Items (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Restructuring and Asset related charges, net		$ 26	$ 49	$ 261	$ 298
Significant Items		(21)	49	214	351
Net exchange gains (losses)	[1]	2	(67)	(47)	(127)
Hedging Program [Member]
Segment Reporting Information [Line Items]
Net exchange gains (losses)		34	(6)	0	173
Argentine Peso Devaluation [Member] | Hedging Program [Member]
Segment Reporting Information [Line Items]
Net exchange gains (losses)		(16)	(26)	(53)	(56)
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Restructuring and Asset related charges, net	[2]	(26)	(49)	(261)	(298)
Equity securities mark-to-market gain		47		47
Loss on Divestiture	[3]				(53)
Significant Items		21	(49)	(214)	(351)
Net exchange gains (losses)		(2)	67	47	127
Segment Reconciling Items [Member] | Seed [Member]
Segment Reporting Information [Line Items]
Restructuring and Asset related charges, net	[2]	(9)	(9)	(145)	(154)
Equity securities mark-to-market gain		47		47
Significant Items		38	(9)	(98)	(154)
Segment Reconciling Items [Member] | Crop Protection [Member]
Segment Reporting Information [Line Items]
Restructuring and Asset related charges, net	[2]	(8)	(40)	(51)	(98)
Equity securities mark-to-market gain		0		0
Loss on Divestiture					(53)
Significant Items		(8)	(40)	(51)	(151)
Segment Reconciling Items [Member] | Crop Protection [Member] | Sale of JV [Member]
Segment Reporting Information [Line Items]
Loss on Divestiture	[3]				(53)
Segment Reconciling Items [Member] | Corporate
Segment Reporting Information [Line Items]
Restructuring and Asset related charges, net	[2]	(9)	0	(65)	(46)
Equity securities mark-to-market gain		0		0
Significant Items		$ (9)	$ 0	$ (65)	$ (46)
[1]	Includes net pre-tax exchange losses of $(16) million and $(53) million associated with the devaluation of the Argentine peso for the three and nine months ended September 30, 2021, respectively, and $(26) million and $(56) million for the three and nine months ended September 30, 2020, respectively.
[2]	Includes Board approved restructuring plans and asset related charges as well as accelerated prepaid amortization expense. See Note 5 - Restructuring and Asset Related Charges - Net, to the interim Consolidated Financial Statements for additional information.
[3]	Includes a loss recorded in other income - net related to the sale of the La Porte site.

EID - Basis of Presentation Nar

EID - Basis of Presentation Narrative (Details) - $ / shares	9 Months Ended
	Sep. 30, 2021	Aug. 05, 2021	Jul. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
EID [Member]
Common Stock, Shares, Outstanding	200			200	200
Common Stock, Par Value	$ 0.30		$ 0.30	$ 0.30	$ 0.30
Common Stock, Shares, Outstanding	730,267,000			743,458,000	747,492,000
Common Stock, Par Value	$ 0.01		$ 0.01	$ 0.01	$ 0.01
Corteva [Member] | EID [Member]
Ownership interest in an entity	100.00%
Corteva [Member]
Common Stock, Par Value	$ 0.01	$ 0.01

EID - Related Party Transacti_2

EID - Related Party Transactions (Details) - EID [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Long Term Debt - Related Party	$ 2,443	$ 3,712	$ 2,443	$ 3,712	$ 3,459
Corteva [Member]
Related Party Transaction [Line Items]
Debt, Weighted Average Interest Rate	1.52%	1.80%	1.52%	1.80%	1.62%
Interest Expense, Related Party	$ 11	$ 19	$ 39	$ 82
Corteva [Member] | Accrued and Other Current Liabilities [Member]
Related Party Transaction [Line Items]
CTVA Related Party Liability	61	110	61	110	$ 92
Corteva [Member] | Other noncurrent obligations
Related Party Transaction [Line Items]
CTVA Related Party Liability	$ 90	$ 84	$ 90	$ 84	$ 92

EID Segment FN Segment reconcil

EID Segment FN Segment reconciliation (Details) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2021		Sep. 30, 2020	Sep. 30, 2021		Sep. 30, 2020
Segment Reporting Information [Line Items]
(Benefit from) provision for income taxes on continuing operations		$ (28)		$ (117)	$ 434		$ 88
Income from continuing operations before income taxes		8		(507)	2,101		745
Interest income		19		11	58		38
Interest Expense		8		11	22		35
Exchange (gains) losses - net	[1]	2		(67)	(47)		(127)
Significant Items		(21)		49	214		351
Corporate Expenses		40		27	106		81
Segment operating EBITDA		(11)		(152)	2,420		1,932
Mark-to-market gain (loss) on certain foreign currency contracts not designated as hedges				27
EID [Member]
Segment Reporting Information [Line Items]
Income from Continuing Operations After Taxes		27		(404)	1,637		595
(Benefit from) provision for income taxes on continuing operations		(30)		(122)	425		68
Income from continuing operations before income taxes		(3)		(526)	2,062		663
Depreciation and Amortization		309		285	926		868
Interest Expense		19		30	61		117
Non-operating benefits - net		(315)		(73)	(941)		(237)
Significant Items		(21)		49	214		351
Corporate Expenses		40		27	106		81
Segment operating EBITDA		(11)		(152)	2,420		1,932
Mark-to-market gain (loss) on certain foreign currency contracts not designated as hedges		19	[2]	(8)	(3)	[2]	19
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Depreciation and Amortization		309		285	926		868
Interest income		(19)		(11)	(58)		(38)
Exchange (gains) losses - net		(2)		67	47		127
Significant Items		21		(49)	(214)		(351)
Mark-to-market gain (loss) on certain foreign currency contracts not designated as hedges	[3]	19			(3)
Segment Reconciling Items [Member] | EID [Member]
Segment Reporting Information [Line Items]
Interest income		(19)		(11)	(58)		(38)
Exchange (gains) losses - net		(2)		67	47		127
Hedging Program [Member]
Segment Reporting Information [Line Items]
Exchange (gains) losses - net		34		(6)	0		173
Hedging Program [Member] | Argentine Peso Devaluation [Member]
Segment Reporting Information [Line Items]
Exchange (gains) losses - net		(16)		(26)	(53)		(56)
Corporate | Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Significant Items		(9)		0	(65)		(46)
Crop Protection [Member]
Segment Reporting Information [Line Items]
Segment operating EBITDA		206		130	897		677
Crop Protection [Member] | Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Significant Items		$ (8)		$ (40)	$ (51)		$ (151)
[1]	Includes net pre-tax exchange losses of $(16) million and $(53) million associated with the devaluation of the Argentine peso for the three and nine months ended September 30, 2021, respectively, and $(26) million and $(56) million for the three and nine months ended September 30, 2020, respectively.
[2]	Effective January 1, 2021, on a prospective basis, the company excludes net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting. For the three and six months ended September 30, 2020, the unrealized mark-to-market (loss) gain was $(8) million and $19 million, respectively.
[3]	Effective January 1, 2021, on a prospective basis, the company excludes net unrealized gain or loss from mark-to-market activity for certain foreign currency derivative instruments that do not qualify for hedge accounting. For the three and nine months ended September 30, 2020, the unrealized mark-to-market (loss) gain was $(8) million and $19 million, respectively. Refer to page 57 for further discussion of the company’s Non-GAAP financial measures.

EID Segment FN Segment Asset Re

EID Segment FN Segment Asset Reconciliation (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
EID [Member]
Segment Reporting Information [Line Items]
Total Assets	$ 41,122	$ 42,649	$ 41,690
Segment Assets	36,240	36,850	36,965
Corporate Assets	4,882	5,799	4,725
Total Assets	$ 41,122	$ 42,649	$ 41,690