Revenues - Disaggregation of Revenues (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Revenue from Contract with Customer [Abstract]
Topic 606	$ 6,386	$ 6,341	$ 12,527	$ 12,487
Topic 815 Revenue	16,295	14,825	30,644	28,854
Revenues	22,681	21,166	43,171	41,341
Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	6,280	6,229	12,296	12,262
Topic 815 Revenue	16,295	14,825	30,644	28,854
Revenues	22,575	21,054	42,940	41,116
Other Business
Revenue from Contract with Customer [Abstract]
Topic 606	106	112	231	225
Topic 815 Revenue	0	0	0	0
Revenues	106	112	231	225
Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	2,198	2,005	4,371	4,204
Topic 815 Revenue	15,718	14,264	29,546	27,740
Revenues	17,916	16,269	33,917	31,944
Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	2,180	2,231	4,218	4,248
Topic 815 Revenue	577	561	1,098	1,114
Revenues	2,757	2,792	5,316	5,362
Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	1,902	1,993	3,707	3,810
Topic 815 Revenue	0	0	0	0
Revenues	1,902	1,993	3,707	3,810
Ag Services | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	1,113	1,024	2,275	2,272
Topic 815 Revenue	10,423	9,872	19,864	19,160
Revenues	11,536	10,896	22,139	21,432
Crushing | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	132	86	269	185
Topic 815 Revenue	2,950	2,543	5,508	5,082
Revenues	3,082	2,629	5,777	5,267
Refined Products and Other | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	953	895	1,827	1,747
Topic 815 Revenue	2,345	1,849	4,174	3,498
Revenues	3,298	2,744	6,001	5,245
Starches and Sweeteners | Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	1,503	1,539	2,912	2,923
Topic 815 Revenue	577	561	1,098	1,114
Revenues	2,080	2,100	4,010	4,037
Vantage Corn Processors | Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	677	692	1,306	1,325
Topic 815 Revenue	0	0	0	0
Revenues	677	692	1,306	1,325
Human Nutrition | Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	1,118	1,161	2,142	2,159
Topic 815 Revenue	0	0	0	0
Revenues	1,118	1,161	2,142	2,159
Animal Nutrition | Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606	784	832	1,565	1,651
Topic 815 Revenue	0	0	0	0
Revenues	$ 784	$ 832	$ 1,565	$ 1,651