Revenue Disaggregation of Revenue - Products (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Net Sales	$ 6,456	$ 6,112	$ 10,873	$ 10,604
Seed [Member]
Disaggregation of Revenue [Line Items]
Net Sales	4,537	4,331
Seed [Member] | Corn [Member]
Disaggregation of Revenue [Line Items]
Net Sales	2,961	2,683	5,030	4,770
Seed [Member] | Soybean [Member]
Disaggregation of Revenue [Line Items]
Net Sales	1,257	1,317	1,562	1,609
Seed [Member] | Other oilseeds [Member]
Disaggregation of Revenue [Line Items]
Net Sales	186	186	409	431
Seed [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net Sales	133	145	243	272
Crop Protection [Member]
Disaggregation of Revenue [Line Items]
Net Sales	1,919	1,781	3,629	3,522
Crop Protection [Member] | Herbicides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	995	946	1,855	1,832
Crop Protection [Member] | Insecticides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	436	415	772	788
Crop Protection [Member] | Fungicides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	342	250	646	545
Crop Protection [Member] | Biologicals
Disaggregation of Revenue [Line Items]
Net Sales	97	90	181	172
Crop Protection [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net Sales	$ 49	$ 80	$ 175	$ 185