EID Segment FN Segment Reconciliation (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations After Taxes		$ 1,822	$ 756	$ (270)
Provision for (benefit from) income taxes on continuing operations		524	(81)	(46)
Income (loss) from Continuing Operations before Income Taxes		2,346	675	(316)
Depreciation and Amortization				1,599
Interest income		77	56	59
Interest Expense		30	45	136
Net exchange losses	[1]	(54)	(174)	(99)
Significant items		236	388	991
Pro forma adjustments				298
Corporate Expenses		138	125	119
Segment Operating EBITDA	[2]	2,714	2,212	2,106
EID [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations After Taxes		1,784	680	(351)
Provision for (benefit from) income taxes on continuing operations		512	(105)	(71)
Income (loss) from Continuing Operations before Income Taxes		2,296	575	(422)
Depreciation and Amortization		1,243	1,177	1,000
Interest Expense		80	145	242
Non-operating benefits - net		(1,256)	(316)	(129)
Significant items		236	388	991
Pro forma adjustments				298
Corporate Expenses		138	125	119
Segment Operating EBITDA	[3]	2,714	2,212	2,106
Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest income		(77)	(56)	(59)
Net exchange losses	[4]	54	174	66
Significant items		(236)		(991)	[5]
Segment Reconciling Items [Member] | EID [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Interest income		(77)	(56)	(59)
Net exchange losses	[6]	54	174	66
Hedging Program [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net exchange losses		18	89	(58)
Hedging Program [Member] | Argentine peso devaluation [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net exchange losses		(67)	(82)	(51)
Hedging Program [Member] | Argentine peso devaluation [Member] | EID [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net exchange losses			(33)
Hedging Program [Member] | Argentine peso devaluation [Member] | Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net exchange losses			(33)
Hedging Program [Member] | Tax Reform Foreign Currency Exchange Impact [Member] | Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net exchange losses	[5]			(33)
Corporate, Non-Segment [Member] | Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Significant items		(78)		(664)	[5]
Corporate, Non-Segment [Member] | Hedging Program [Member] | Tax Reform Foreign Currency Exchange Impact [Member] | Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net exchange losses	[5]			(33)
Crop Protection [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Depreciation and Amortization		377	379	372
Segment Operating EBITDA		1,202	$ 1,004	1,066
Crop Protection [Member] | Segment Reconciling Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Significant items		$ (60)		$ (23)	[5]

[1] Includes net pre-tax exchange gains (losses) of $(67) million, $(82) million and $(51) million associated with the devaluation of the Argentine peso for the years ended December 31, 2021, 2020 and 2019, respectively.

[2] The year ended December 31, 2019 is presented on a pro forma basis, prepared in accordance with Article 11 of Regulation S-X that was in effect prior to recent amendments.

[3] The year ended December 31, 2019 is presented on a pro forma basis, prepared in accordance with Article 11 of Regulation S-X that was in effect prior to recent amendments.

[4] Excludes a $(33) million foreign exchange loss for the year ended December 31, 2019 associated with the devaluation of the Argentine peso. See Note 9 - Supplementary Information, to the Consolidated Financial Statements, for additional information.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. There were no unrealized mark-to-market (gains) losses for the years ended December 31, 2020 and 2019.

[5] The year ended December 31, 2019 is presented on a pro forma basis, prepared in accordance with Article 11 of Regulation S-X that was in effect prior to recent amendments.

[6] Excludes a $(33) million foreign exchange loss for the year ended December 31, 2019 associated with the devaluation of the Argentine peso. See Note 9 - Supplementary Information, of the Corteva, Inc. Consolidated Financial Statements for additional information.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. There were no unrealized mark-to-market (gains) losses for the years ended December 31, 2020 and 2019.