Segment Reporting Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022		Mar. 31, 2021		Dec. 31, 2021
Segment Reporting Information [Line Items]
Net Sales	$ 4,601		$ 4,178
Segment operating EBITDA	1,060		938
Segment Assets	38,290		38,148		$ 35,698
Seed [Member]
Segment Reporting Information [Line Items]
Net Sales	2,524		2,492
Segment operating EBITDA	569		617
Segment Assets	24,146	[1]	24,799	[1]	23,270
Crop Protection [Member]
Segment Reporting Information [Line Items]
Net Sales	2,077		1,686
Segment operating EBITDA	491		321
Segment Assets	$ 14,144	[1]	$ 13,349	[1]	$ 12,428

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