Revenue Disaggregation of Revenue - Principal Product Groups (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Net Sales	$ 2,777	$ 2,371	$ 13,630	$ 12,176
Seed [Member]
Disaggregation of Revenue [Line Items]
Net Sales	862	738	7,333	7,010
Seed [Member] | Corn [Member]
Disaggregation of Revenue [Line Items]
Net Sales	469	437	4,621	4,505
Seed [Member] | Soybean [Member]
Disaggregation of Revenue [Line Items]
Net Sales	205	157	1,685	1,494
Seed [Member] | Other oilseeds [Member]
Disaggregation of Revenue [Line Items]
Net Sales	124	94	647	661
Seed [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net Sales	64	50	380	350
Crop Protection [Member]
Disaggregation of Revenue [Line Items]
Net Sales	1,915	1,633	6,297	5,166
Crop Protection [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Net Sales	88	96	377	257
Crop Protection [Member] | Herbicides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	1,043	782	3,472	2,737
Crop Protection [Member] | Insecticides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	363	416	1,275	1,261
Crop Protection [Member] | Fungicides [Member]
Disaggregation of Revenue [Line Items]
Net Sales	$ 421	$ 339	$ 1,173	$ 911