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Schedule II - Valuation and Qualifying Accounts (Notes)
 12 Months Ended
Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Schedule II—Valuation and Qualifying Accounts (Corteva, Inc. and EIDP)
(Dollars in millions)
For the Year Ended December 31,
202220212020
Accounts Receivable—Allowance for Doubtful Receivables 
Balance at beginning of period$210 $208 $174 
Additions charged to expenses3 6 52 
Deductions from reserves1
(19)(4)(18)
Balance at end of period$194 $210 $208 
Deferred Tax Assets—Valuation Allowance  
Balance at beginning of period$366 $453 $457 
Additions charged to expenses87 97 56 
Deductions from reserves2
(111)(184)(60)
Balance at end of period$342 $366 $453 
1.    Deductions include write-offs, recoveries collected and currency translation adjustments.
2.     Deductions include currency translation adjustments.