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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, 2022
Dec. 31, 2021
Dec. 31, 2020
Pension Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service Cost $ 20 $ 25 $ 26
Interest Cost 505 364 559
Expected return on plan assets (720) (915) (1,000)
Amortization of unrecognized loss (gain) 3 55 4
Amortization of prior service benefit (3) (2) (1)
Curtailment gain 0 0 0
Settlement loss (25) 1 3
Net periodic benefit cost (credit) (170) (472) (409)
Net loss (gain) 274 1,284 (247)
Amortization of unrecognized (loss) gain 3 55 4
Prior service cost (benefit) 0 15 3
Amortization of prior service benefit (3) (2) (1)
Settlement loss 25 1 3
Effect of foreign exchange rates 2 3 (2)
Total (benefit) loss recognized in other comprehensive loss, attributable to Corteva 301 1,356 (240)
Total recognized in net periodic benefit cost and other comprehensive (income) loss 471 1,828 169
Other Post Employment Benefits Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service Cost 1 1 2
Interest Cost 26 21 66
Expected return on plan assets 0 0 0
Amortization of unrecognized loss (gain) 2 81 1
Amortization of prior service benefit (1) (922) 0
Curtailment gain 0 (1) 0
Settlement loss 0 0 0
Net periodic benefit cost (credit) 28 (820) 69
Net loss (gain) 246 33 (59)
Amortization of unrecognized (loss) gain 2 81 1
Prior service cost (benefit) 0 0 939
Amortization of prior service benefit (1) (922) 0
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax 0 (1) 0
Settlement loss 0 0 0
Effect of foreign exchange rates 0 0 1
Total (benefit) loss recognized in other comprehensive loss, attributable to Corteva 247 (809) 882
Total recognized in net periodic benefit cost and other comprehensive (income) loss $ 219 $ 11 $ 813