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Schedule II - Valuation and Qualifying Accounts (Notes) | 12 Months Ended
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Dec. 31, 2020
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,
| 2020 | 2019 | 2018
Accounts Receivable—Allowance for Doubtful Receivables |  |  |
Balance at beginning of period | $ | 174 |  | $ | 127 |  | $ | 64 |
Additions charged to expenses | 154 |  | 69 |  | 80 |
Deductions from reserves 1 | (120) |  | (22) |  | (17) |
Balance at end of period | $ | 208 |  | $ | 174 |  | $ | 127 |
Deferred Tax Assets—Valuation Allowance |  |  |
Balance at beginning of period | $ | 457 |  | $ | 669 |  | $ | 559 |
Additions charged to expenses | 56 |  | 20 |  | 451 |
Deductions from reserves 2 | (60) |  | (232) |  | (341) |
Balance at end of period | $ | 453 |  | $ | 457 |  | $ | 669 |
1. Deductions include write-offs, recoveries collected and currency translation adjustments. 2. 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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