Income Taxes Income Tax Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Tax benefit related to the impact of recent tax law enactment in foreign jurisdictions		$ 14		$ 14
Tax benefit related to an elective change in accounting method for the impact of the Act's foreign tax provisions		$ 51		$ 51
Net tax benefits associated with changes in accruals	$ 18		$ 25

Tax benefit related to return to accrual adjustment associated with elective change in accounting method for 2019 tax year impact of The Act's foreign tax provisions.

No definition available.

Name:	dd_TaxbenefitrelatedtoanelectivechangeinaccountingmethodfortheimpactoftheActsforeigntaxprovisions
Namespace Prefix:	dd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration