Earnings Per Share Net Income for Earnings Per Share Calculations - Basic and Diluted (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations After Taxes	$ 1,204	$ 863	$ 941
Net Income attributable to continuing operations - Noncontrolling Interest	11	12	12
Income (loss) from continuing operations attributable to Corteva common stockholders	1,193	851	929
(Loss) income from discontinued operations attributable to Corteva common stockholders	(99)	56	(194)
Net (Loss) Income attributable to common stockholders	$ 1,094	$ 907	$ 735