Revenue Disaggregation of Revenue - Principal Product Groups (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Net Sales	$ 2,590	$ 2,777	$ 13,519	$ 13,630
Seed [Member]
Disaggregation of Revenue [Line Items]
Net Sales	878	862	7,837	7,333
Seed [Member] | Corn [Member]
Disaggregation of Revenue [Line Items]
Net Sales	487	469	5,139	4,621
Seed [Member] | Soybean [Member]
Disaggregation of Revenue [Line Items]
Net Sales	189	205	1,713	1,685
Seed [Member] | Other oilseeds [Member]
Disaggregation of Revenue [Line Items]
Net Sales	142	124	637	647
Seed [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net Sales	60	64	348	380
Crop Protection [Member]
Disaggregation of Revenue [Line Items]
Net Sales	1,712	1,915	5,682	6,297
Crop Protection [Member] | Herbicides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	815	1,043	3,043	3,472
Crop Protection [Member] | Insecticides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	416	363	1,156	1,275
Crop Protection [Member] | Fungicides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	226	421	837	1,173
Crop Protection [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net Sales	$ 255	$ 88	$ 646	$ 377