Segment Reporting Segment Information (Details) - USD ($) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2022		Jun. 30, 2021		Jun. 30, 2022		Jun. 30, 2021		Dec. 31, 2021
Segment Reporting Information [Line Items]
Net Sales		$ 6,252		$ 5,627		$ 10,853		$ 9,805
Segment operating EBITDA		1,749		1,493		2,809		2,431
Segment Assets		36,289		36,800		36,289		36,800		$ 35,698
Net exchange gains (losses)	[1]	(36)		(14)		(83)		(49)
Income from continuing operations before income taxes		1,327		1,302		2,025		2,093
Interest Expense		16		7		25		14
Interest income		24		18		39		39
Mark-to-market gain (loss) on certain foreign currency contracts not designated as hedges				(27)
Significant Items		155		135		177		235
Corporate Expenses		30		32		51		66
EID [Member]
Segment Reporting Information [Line Items]
Net Sales		6,252		5,627		10,853		9,805
Segment operating EBITDA		1,749		1,493		2,809		2,431
Income from continuing operations before income taxes		1,317		1,289		2,006		2,065
Interest Expense		26		20		44		42
Depreciation and Amortization		302		313		609		617
Non-operating benefits - net		(60)		(315)		(125)		(626)
Mark-to-market gain (loss) on certain foreign currency contracts not designated as hedges		(33)		23		3		22
Significant Items		155		135		177		235
Corporate Expenses		30		32		51		66
Seed [Member]
Segment Reporting Information [Line Items]
Net Sales		3,947		3,780		6,471		6,272
Segment operating EBITDA		1,240		1,123		1,809		1,740
Segment Assets		22,757	[2]	23,804	[2]	22,757	[2]	23,804	[2]	23,270
Crop Protection [Member]
Segment Reporting Information [Line Items]
Net Sales		2,305		1,847		4,382		3,533
Segment operating EBITDA		509		370		1,000		691
Segment Assets		13,532	[2]	12,996	[2]	13,532	[2]	12,996	[2]	$ 12,428
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Net exchange gains (losses)		36		14		83		49
Depreciation and Amortization		302		313		609		617
Interest income		(24)		(18)		(39)		(39)
Mark-to-market gain (loss) on certain foreign currency contracts not designated as hedges		(33)		23		3		22
Significant Items		(155)		(135)		(177)		(235)
Segment Reconciling Items [Member] | EID [Member]
Segment Reporting Information [Line Items]
Net exchange gains (losses)		36		14		83		49
Interest income		(24)		(18)		(39)		(39)
Segment Reconciling Items [Member] | Seed [Member]
Segment Reporting Information [Line Items]
Significant Items		(138)		(115)		(143)		(136)
Segment Reconciling Items [Member] | Crop Protection [Member]
Segment Reporting Information [Line Items]
Significant Items		$ (2)		$ (11)		$ (17)		$ (43)

[1] Includes net pre-tax exchange gains (losses) of $(18) million and $(33) million associated with the devaluation of the Argentine peso for the three and six months ended June 30, 2022, respectively, and $(14) million and $(37) million for the three and six months ended June 30, 2021, respectively.

[2] Segment assets at December 31, 2021 were $23,270 million and $12,428 million for Seed and Crop Protection, respectively.