Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Net income (loss)	$ 701	$ (941)	[1]	$ (5,027)	[1]
Cumulative Translation Adjustments	(26)	(274)		(1,576)
Unrealized Gain (Loss) on Investments	(10)	0		0
Derivatives Instruments	(69)	28		(24)
Other Comprehensive Income (Loss), Net of Tax	380	(1,124)		(2,183)
Comprehensive Income (Loss)	1,081	(2,065)		(7,210)
Comprehensive Income Attributable to Noncontrolling Interest	20	18		38
Comprehensive Income (Loss) Attributable to Corteva	1,061	(2,083)		(7,248)
Pension Plan
Adjustments to other benefit plans	(186)	(718)		(715)
Other Benefit Plans
Adjustments to other benefit plans	671	(160)		132
EID [Member]
Net income (loss)	625	(1,022)	[2]	(5,027)	[2]
Cumulative Translation Adjustments	(26)	(274)		(1,576)
Unrealized Gain (Loss) on Investments	(10)	0		0
Derivatives Instruments	(69)	28		(24)
Other Comprehensive Income (Loss), Net of Tax	380	(1,124)		(2,183)
Comprehensive Income (Loss)	1,005	(2,146)		(7,210)
Comprehensive Income Attributable to Noncontrolling Interest	10	8		28
Comprehensive Income (Loss) Attributable to Corteva	995	(2,154)		(7,238)
EID [Member] | Pension Plan
Adjustments to other benefit plans	(186)	(718)		(715)
EID [Member] | Other Benefit Plans
Adjustments to other benefit plans	$ 671	$ (160)		$ 132

[1] The cash flows for the years ended December 31, 2018 and 2019 includes cash flows of EID's ECP and Specialty Products Entities.

[2] The cash flows for the year ended December 31, 2018 and 2019 includes cash flows of EID's ECP and Specialty Products Entities