Segment Information - Reportable Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Information
Revenues	$ 21,166	$ 22,248	$ 41,341	$ 44,095
Selling, general, and administrative expenses	911	907	1,843	1,858
Impairment, exit, restructuring charges, and settlement contingencies	(137)	(7)	(175)	(25)
Gain on contract termination			69
Earnings Before Income Taxes	279	596	632	1,481
Depreciation expense	228	218	452	432
Amortization expense	63	68	126	134
Interest and investment income (expense)	(70)	140	68	263
Equity in earnings of unconsolidated affiliates	134	152	278	364
Intersegment sales
Segment Information
Revenues	727	675	1,366	1,323
Intersegment sales | Ag Services and Oilseeds
Segment Information
Revenues	506	432	927	858
Intersegment sales | Carbohydrate Solutions
Segment Information
Revenues	207	225	406	434
Intersegment sales | Nutrition
Segment Information
Revenues	14	18	33	31
Operating Segments
Segment Information
Revenues	21,054	22,135	41,116	43,873
Segment operating profit	830	925	1,577	2,121
Depreciation expense	217	208	428	410
Amortization expense	43	46	86	90
Interest and investment income (expense)	(79)	13	(57)	21
Equity in earnings of unconsolidated affiliates	135	154	281	371
Operating Segments | Ag Services and Oilseeds
Segment Information
Revenues	16,269	17,333	31,944	34,552
Cost of materials	14,940	15,942	29,280	31,423
Manufacturing costs	867	843	1,747	1,676
Selling, general, and administrative expenses	223	219	415	461
Other segment items	(140)	(130)	(289)	(331)
Segment operating profit	379	459	791	1,323
Depreciation expense	104	95	203	186
Amortization expense	3	4	6	7
Interest and investment income (expense)	9	13	31	21
Equity in earnings of unconsolidated affiliates	109	117	219	298
Operating Segments | Carbohydrate Solutions
Segment Information
Revenues	2,792	2,894	5,362	5,577
Cost of materials	1,745	1,862	3,347	3,594
Manufacturing costs	647	639	1,325	1,280
Selling, general, and administrative expenses	83	78	165	170
Other segment items	(20)	(42)	(51)	(72)
Segment operating profit	337	357	576	605
Depreciation expense	75	75	150	151
Amortization expense	1	1	2	3
Equity in earnings of unconsolidated affiliates	21	31	50	62
Operating Segments | Nutrition
Segment Information
Revenues	1,993	1,908	3,810	3,744
Cost of materials	1,214	1,196	2,354	2,360
Manufacturing costs	326	312	645	610
Selling, general, and administrative expenses	284	293	562	590
Other segment items	55	(2)	39	(9)
Segment operating profit	114	109	210	193
Depreciation expense	38	38	75	73
Amortization expense	39	41	78	80
Interest and investment income (expense)	(88)	0	(88)	0
Equity in earnings of unconsolidated affiliates	5	6	12	11
Other Business
Segment Information
Revenues	112	113	225	222
Segment operating profit	94	96	190	217
Depreciation expense	2	2	5	5
Interest and investment income (expense)	100	122	197	242
Corporate
Segment Information
Segment operating profit	(498)	(418)	(939)	(844)
Gains on sales of assets and businesses	8		8
Impairment, exit, restructuring charges, and settlement contingencies	(224)	(7)	(273)	(13)
Gain on contract termination	69
Depreciation expense	9	8	19	17
Amortization expense	20	22	40	44
Interest and investment income (expense)	(91)	5	(72)	0
Equity in earnings of unconsolidated affiliates	$ (1)	$ (2)	$ (3)	$ (7)