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Schedule II - Valuation and Qualifying Accounts (Notes) | 12 Months Ended
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Dec. 31, 2021
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 (EID and Corteva, Inc.) (Dollars in millions)
| For the Year Ended December 31,
| 2021 | 2020 | 2019
Accounts Receivable—Allowance for Doubtful Receivables |  |  |
Balance at beginning of period | $ | 208 |  | $ | 174 |  | $ | 127 |
Additions charged to expenses 1 | 6 |  | 52 |  | 69 |
Deductions from reserves 1,2 | (4) |  | (18) |  | (22) |
Balance at end of period | $ | 210 |  | $ | 208 |  | $ | 174 |
Deferred Tax Assets—Valuation Allowance |  |  |
Balance at beginning of period | $ | 453 |  | $ | 457 |  | $ | 669 |
Additions charged to expenses | 97 |  | 56 |  | 20 |
Deductions from reserves 3 | (184) |  | (60) |  | (232) |
Balance at end of period | $ | 366 |  | $ | 453 |  | $ | 457 |
1. Classifications in the changes in the allowance for doubtful receivables for the period ended December 31, 2020 have been adjusted from their previous presentation. Adjustments did not impact the amount of the provision or the allowance for doubtful receivables recorded in the Consolidated Statements of Operations or the Consolidated Balance Sheets. 2. Deductions include write-offs, recoveries collected and currency translation adjustments. 3. Deductions include currency translation adjustments.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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