Pension Plans and Other Post Employment Benefit Plans Components of net periodic benefit cost (credit) and amounts recognized in other comprehensive loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	$ 18	$ 20	$ 25
Interest Cost	690	505	364
Expected return on plan assets	(605)	(720)	(915)
Amortization of unrecognized loss (gain)	0	3	55
Amortization of prior service benefit	(3)	(3)	(2)
Curtailment gain	0	0	0
Settlement loss	0	25	1
Net periodic benefit cost (credit)	100	(170)	(472)
Net loss (gain)	(255)	274	1,284
Amortization of unrecognized (loss) gain	0	3	55
Prior service cost (benefit)	0	0	15
Amortization of prior service benefit	(3)	(3)	(2)
Settlement loss	0	25	1
Effect of foreign exchange rates	8	2	3
Total (benefit) loss recognized in other comprehensive loss, attributable to Corteva	(250)	301	1,356
Total recognized in net periodic benefit cost and other comprehensive (income) loss	(350)	471	1,828
Other Post Employment Benefits Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	1	1	1
Interest Cost	49	26	21
Expected return on plan assets	0	0	0
Amortization of unrecognized loss (gain)	(10)	2	81
Amortization of prior service benefit	(2)	(1)	(922)
Curtailment gain	0	0	(1)
Settlement loss	0	0	0
Net periodic benefit cost (credit)	38	28	(820)
Net loss (gain)	49	246	33
Amortization of unrecognized (loss) gain	(10)	2	81
Prior service cost (benefit)	0	0	0
Amortization of prior service benefit	(2)	(1)	(922)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax	0	0	(1)
Settlement loss	0	0	0
Effect of foreign exchange rates	1	0	0
Total (benefit) loss recognized in other comprehensive loss, attributable to Corteva	38	247	(809)
Total recognized in net periodic benefit cost and other comprehensive (income) loss	$ 0	$ 219	$ 11