Revenues - Disaggregation of Revenues (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	$ 24,956	$ 24,373	$ 25,691
Topic 815 Revenue	55,313	61,157	68,244
Revenues	80,269	85,530	93,935
Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	24,507	23,942	25,267
Topic 815 Revenue	55,313	61,157	68,244
Revenues	79,820	85,099	93,511
Other Business
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	449	431	424
Topic 815 Revenue	0	0	0
Revenues	449	431	424
Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	8,492	7,611	7,636
Topic 815 Revenue	53,079	58,905	65,790
Revenues	61,571	66,516	73,426
Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	8,503	8,982	10,420
Topic 815 Revenue	2,234	2,252	2,454
Revenues	10,737	11,234	12,874
Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	7,512	7,349	7,211
Topic 815 Revenue	0	0	0
Revenues	7,512	7,349	7,211
Point in Time
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	24,181	23,450	24,930
Point in Time | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	23,732	23,019	24,506
Point in Time | Other Business
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	449	431	424
Point in Time | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	7,717	6,688	6,875
Point in Time | Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	8,503	8,982	10,420
Point in Time | Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	7,512	7,349	7,211
Over Time
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	775	923	761
Over Time | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	775	923	761
Over Time | Other Business
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	0	0	0
Over Time | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	775	923	761
Over Time | Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	0	0	0
Over Time | Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	0	0	0
Ag Services | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	4,572	4,702	4,871
Topic 815 Revenue	35,791	39,381	42,549
Revenues	40,363	44,083	47,420
Ag Services | Point in Time | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	3,797	3,779	4,110
Ag Services | Over Time | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	775	923	761
Crushing | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	375	462	470
Topic 815 Revenue	9,978	11,374	13,550
Revenues	10,353	11,836	14,020
Crushing | Point in Time | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	375	462	470
Crushing | Over Time | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	0	0	0
Refined Products and Other | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	3,545	2,447	2,295
Topic 815 Revenue	7,310	8,150	9,691
Revenues	10,855	10,597	11,986
Refined Products and Other | Point in Time | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	3,545	2,447	2,295
Refined Products and Other | Over Time | Ag Services and Oilseeds | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	0	0	0
Starches and Sweeteners | Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	5,748	6,335	7,431
Topic 815 Revenue	2,234	2,252	2,454
Revenues	7,982	8,587	9,885
Starches and Sweeteners | Point in Time | Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	5,748	6,335	7,431
Starches and Sweeteners | Over Time | Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	0	0	0
Vantage Corn Processors | Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	2,755	2,647	2,989
Topic 815 Revenue	0	0	0
Revenues	2,755	2,647	2,989
Vantage Corn Processors | Point in Time | Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	2,755	2,647	2,989
Vantage Corn Processors | Over Time | Carbohydrate Solutions | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	0	0	0
Human Nutrition | Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	4,187	3,944	3,634
Topic 815 Revenue	0	0	0
Revenues	4,187	3,944	3,634
Human Nutrition | Point in Time | Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	4,187	3,944	3,634
Human Nutrition | Over Time | Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	0	0	0
Animal Nutrition | Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	3,325	3,405	3,577
Topic 815 Revenue	0	0	0
Revenues	3,325	3,405	3,577
Animal Nutrition | Point in Time | Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	3,325	3,405	3,577
Animal Nutrition | Over Time | Nutrition | Operating Segments
Revenue from Contract with Customer [Abstract]
Topic 606 Revenue	$ 0	$ 0	$ 0