Segment Information - Reportable Segment Information Intersegment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Information
Total intersegment sales	$ 22,681	$ 21,166	$ 43,171	$ 41,341
Depreciation expense	233	228	467	452
Amortization expense	60	63	119	126
Interest and investment (income) expense	116	(70)	241	68
Equity in earnings of unconsolidated affiliates	142	134	231	278
Intersegment sales
Segment Information
Total intersegment sales	695	727	1,330	1,366
Intersegment sales | Ag Services and Oilseeds
Segment Information
Total intersegment sales	488	506	910	927
Intersegment sales | Carbohydrate Solutions
Segment Information
Total intersegment sales	194	207	392	406
Intersegment sales | Nutrition
Segment Information
Total intersegment sales	13	14	28	33
Operating Segments
Segment Information
Total intersegment sales	22,575	21,054	42,940	41,116
Depreciation expense	220	217	442	428
Amortization expense	42	43	85	86
Interest and investment (income) expense	10	(79)	35	(57)
Equity in earnings of unconsolidated affiliates	141	135	229	281
Operating Segments | Ag Services and Oilseeds
Segment Information
Total intersegment sales	17,916	16,269	33,917	31,944
Depreciation expense	103	104	204	203
Amortization expense	3	3	6	6
Interest and investment (income) expense	10	9	34	31
Equity in earnings of unconsolidated affiliates	102	109	151	219
Operating Segments | Carbohydrate Solutions
Segment Information
Total intersegment sales	2,757	2,792	5,316	5,362
Depreciation expense	76	75	155	150
Amortization expense	1	1	2	2
Interest and investment (income) expense	0	0	1	0
Equity in earnings of unconsolidated affiliates	31	21	65	50
Operating Segments | Nutrition
Segment Information
Total intersegment sales	1,902	1,993	3,707	3,810
Depreciation expense	41	38	83	75
Amortization expense	38	39	77	78
Interest and investment (income) expense	0	(88)	0	(88)
Equity in earnings of unconsolidated affiliates	8	5	13	12
Other Business
Segment Information
Total intersegment sales	106	112	231	225
Depreciation expense	3	2	6	5
Interest and investment (income) expense	99	100	193	197
Corporate
Segment Information
Depreciation expense	10	9	19	19
Amortization expense	18	20	34	40
Interest and investment (income) expense	7	(91)	13	(72)
Equity in earnings of unconsolidated affiliates	$ 1	$ (1)	$ 2	$ (3)