Supplementary Information Other Income (Expense) - Net (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest income		$ 9	$ 17	$ 27	$ 33
Equity in losses of affiliates - net		(2)	(5)	(3)	(5)
Net gain (loss) on sales of businesses and other assets	[1]	16	2	(30)	(11)
Net exchange gains (losses)		1	(32)	(60)	(59)
Non-operating pension and other post employment benefit credit	[2]	91	46	182	97
Miscellaneous expenses - net	[3]	(26)	(28)	(26)	(24)
Other income - net		89	0	90	31
Segment Reconciling Items [Member]
Interest income		(9)	(17)	(27)	(33)	[4]
Net exchange gains (losses)		$ (1)	$ 32	60	59	[4]
Gain (Loss) on Disposition of Assets	[5]				(24)
Segment Reconciling Items [Member] | Crop Protection [Member]
Gain (Loss) on Disposition of Assets	[6]			$ (53)
Sale of JV [Member] | Segment Reconciling Items [Member] | Seed [Member]
Gain (Loss) on Disposition of Assets	[5],[7]				$ (24)

[1] The six months ended June 30, 2020 includes a loss of $(53) million relating to the expected sale of the La Porte site, for which the company signed an agreement in 2020. The six months ended June 30, 2019 includes a loss of $(24) million relating to DAS’s sale of a joint venture related to synergy actions.

[2] Includes non-service related components of net periodic benefit credits (costs) (interest cost, expected return on plan assets, amortization of unrecognized (gain) loss, amortization of prior service benefit and settlement (loss) gain).

[3] Miscellaneous expenses - net, includes losses related to loss on sale of receivables, bank charges and other items.

[4] Period is presented on a pro forma basis, prepared in accordance with Article 11 of Regulation S-X.

[5] Includes a loss recorded in other income - net related to DAS’s sale of a joint venture related to synergy actions.

[6] Integration and separation costs include costs incurred to prepare for and close the Merger, post-Merger integration expenses, and costs incurred to prepare for the Business Separations.

[7] Includes a loss on early extinguishment of debt related to the difference between the redemption price and the par value of the Make Whole Notes and Term Loan Facility, partially offset by the write-off of unamortized step-up related to the fair value step-up of EID's debt.