Segment Information - Reportable Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Information
Revenues	$ 20,175	$ 21,847
Selling, general, and administrative expenses	932	951
Impairment, exit, restructuring charges, and settlement contingencies	(38)	(18)
Earnings Before Income Taxes	353	885
Depreciation expense	224	214
Amortization expense	63	66
Interest and investment income	138	123
Equity in earnings of unconsolidated affiliates	144	212
Intersegment revenue
Segment Information
Revenues	639	647
Intersegment revenue | Ag Services and Oilseeds
Segment Information
Revenues	421	426
Intersegment revenue | Carbohydrate Solutions
Segment Information
Revenues	199	208
Intersegment revenue | Nutrition
Segment Information
Revenues	19	13
Operating Segments
Segment Information
Revenues	20,063	21,738
Segment operating profit	747	1,196
Depreciation expense	212	203
Amortization expense	43	44
Interest and investment income	21	9
Equity in earnings of unconsolidated affiliates	146	217
Operating Segments | Ag Services and Oilseeds
Segment Information
Revenues	15,675	17,219
Cost of materials	14,339	15,482
Manufacturing costs	881	833
Selling, general, and administrative expenses	193	242
Other segment items	(150)	(202)
Segment operating profit	412	864
Depreciation expense	100	92
Amortization expense	3	3
Interest and investment income	21	9
Equity in earnings of unconsolidated affiliates	110	180
Operating Segments | Carbohydrate Solutions
Segment Information
Revenues	2,571	2,683
Cost of materials	1,602	1,732
Manufacturing costs	677	641
Selling, general, and administrative expenses	82	92
Other segment items	(30)	(30)
Segment operating profit	240	248
Depreciation expense	75	75
Amortization expense	1	2
Equity in earnings of unconsolidated affiliates	29	32
Operating Segments | Nutrition
Segment Information
Revenues	1,817	1,836
Cost of materials	1,139	1,164
Manufacturing costs	319	298
Selling, general, and administrative expenses	278	296
Other segment items	(14)	(6)
Segment operating profit	95	84
Depreciation expense	37	36
Amortization expense	39	39
Equity in earnings of unconsolidated affiliates	7	5
Other Business
Segment Information
Revenues	112	109
Segment operating profit	96	121
Depreciation expense	2	2
Interest and investment income	97	119
Corporate
Segment Information
Segment operating profit	(441)	(426)
Gains on sales of assets and businesses		0
Impairment, exit, restructuring charges, and settlement contingencies	(49)	(6)
Depreciation expense	10	9
Amortization expense	20	22
Interest and investment income	20	(5)
Equity in earnings of unconsolidated affiliates	$ (2)	$ (5)