Pension Plans and Other Post Employment Benefit Plans Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	5 Months Ended	8 Months Ended	12 Months Ended
	Nov. 30, 2017	Jun. 01, 2019	Aug. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2023
Defined Benefit and Contribution Disclosures [Line Items]
Pre-tax cash requirements to cover actual net claims costs and related administrative expenses				$ 122	$ 198	$ 207
U.S. Retirement Savings Plan [Member]
Defined Benefit and Contribution Disclosures [Line Items]
Employer Matching Contribution, Percent of Match				100.00%
Employer Matching Contribution, Percent of Employees' Gross Pay				6.00%
Employer Discretionary Contribution Percent				3.00%
Defined Contribution Plan, Employer Contribution				$ 97	63	94
Employers Discretionary Contribution, Vesting Period				3 years
Corteva Other Contribution Plans [Member]
Defined Benefit and Contribution Disclosures [Line Items]
Defined Contribution Plan, Employer Contribution				$ 36	29	$ 33
Pension Plan
Defined Benefit and Contribution Disclosures [Line Items]
Defined Benefit Plan, Unfunded Status of Plan				(1,398)	(1,948)
Employer contributions				$ 60	$ 49
Expected long-term rate of return on plan assets				4.51%	5.73%	6.25%
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2021				$ 1,267
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan				1,100
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement				25	$ (1)	$ (3)
Actuarial (gain) loss			$ 110	(3,759)	(524)
Other Post Employment Benefits Plan
Defined Benefit and Contribution Disclosures [Line Items]
Defined Benefit Plan, Unfunded Status of Plan				(1,021)	(1,362)
Employer contributions				122	198
Expected Future Employer Contributions, Next Fiscal Year							$ 135
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2021				123
Defined Benefit Plan, Accumulated Benefit Obligation, Increase (Decrease) for Plan Amendment				939
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement				0	0	0
Actuarial (gain) loss				(246)	(33)
Other Pension Plan [Member]
Defined Benefit and Contribution Disclosures [Line Items]
Employer contributions				60	49	$ 62
Expected Future Employer Contributions, Next Fiscal Year							$ 50
Nonqualified Plan [Member] | Trust Agreement [Member]
Defined Benefit and Contribution Disclosures [Line Items]
Contributions to Trust	$ 571
Trust Asset Distribution		$ 39		58	43
Trust Asset				$ 304	$ 251