Segment Information (Segment Information) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Information
Revenues	$ 21,695	$ 24,683	$ 70,957	$ 75,617
Earnings Before Income Taxes	1,031	1,230	3,560	4,020
Ag Services and Oilseeds [Member]
Segment Information
Revenues	16,479	19,141	54,902	58,823
Ag Services [Member]
Segment Information
Revenues	10,198	12,537	35,259	38,717
Crushing [Member]
Segment Information
Revenues	3,352	3,220	10,515	9,804
Refined Products and Other [Member]
Segment Information
Revenues	2,929	3,384	9,128	10,302
Carbohydrate Solutions [Member]
Segment Information
Revenues	3,325	3,581	10,243	10,698
Starches and sweeteners [Member]
Segment Information
Revenues	2,448	2,680	7,660	7,697
VCP [Member]
Segment Information
Revenues	877	901	2,583	3,001
Nutrition [Member]
Segment Information
Revenues	1,784	1,864	5,490	5,791
Human Nutrition [Member]
Segment Information
Revenues	900	906	2,802	2,884
Animal Nutrition [Member]
Segment Information
Revenues	884	958	2,688	2,907
Other [Member]
Segment Information
Revenues	107	97	322	305
Operating Segments [Member]
Segment Information
Earnings Before Income Taxes	1,421	1,559	4,665	4,938
Operating Segments [Member] | Ag Services and Oilseeds [Member]
Segment Information
Revenues	17,643	20,238	58,421	61,838
Earnings Before Income Taxes	848	1,075	3,112	3,202
Operating Segments [Member] | Carbohydrate Solutions [Member]
Segment Information
Revenues	3,484	4,070	11,579	12,750
Earnings Before Income Taxes	460	309	1,036	1,099
Operating Segments [Member] | Nutrition [Member]
Segment Information
Revenues	1,851	1,900	5,721	5,921
Earnings Before Income Taxes	138	177	468	605
Operating Segments [Member] | Other [Member]
Segment Information
Revenues	107	97	322	305
Earnings Before Income Taxes	46	18	229	78
Intersegment Elimination [Member]
Segment Information
Revenues	(1,390)	(1,622)	(5,086)	(5,197)
Intersegment Elimination [Member] | Ag Services and Oilseeds [Member]
Segment Information
Revenues	(1,164)	(1,097)	(3,519)	(3,015)
Intersegment Elimination [Member] | Carbohydrate Solutions [Member]
Segment Information
Revenues	(159)	(489)	(1,336)	(2,052)
Intersegment Elimination [Member] | Nutrition [Member]
Segment Information
Revenues	(67)	(36)	(231)	(130)
Corporate, Non-Segment [Member]
Segment Information
Earnings Before Income Taxes	(390)	(329)	(1,105)	(918)
Other (Income) Expense - Net [Member] | Segment Reconciling Items [Member]
Segment Information
Earnings Before Income Taxes	(2)	29	10	30
Asset impairment, restructuring, and settlement [Member] | Segment Reconciling Items [Member]
Segment Information
Earnings Before Income Taxes	$ (69)	$ (49)	$ (190)	$ (76)