Revenues Revenues (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 85,249	$ 64,355	$ 64,656
Contract with Customer, Liability, Current	581	626
Contract with Customer, Liability, Revenue Recognized	626	604
Ag Services and Oilseeds [Member]
Disaggregation of Revenue [Line Items]
Revenues	67,047	49,716	48,741
Ag Services [Member]
Disaggregation of Revenue [Line Items]
Revenues		32,726	31,705
Crushing [Member]
Disaggregation of Revenue [Line Items]
Revenues		9,593	9,479
Refined Products and Other [Member]
Disaggregation of Revenue [Line Items]
Revenues		7,397	7,557
Carbohydrate Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	11,110	8,472	9,886
Starches and sweeteners [Member]
Disaggregation of Revenue [Line Items]
Revenues		6,387	6,854
Vantage Corn Processors
Disaggregation of Revenue [Line Items]
Revenues		2,085	3,032
Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues	6,712	5,800	5,677
Human Nutrition
Disaggregation of Revenue [Line Items]
Revenues		2,812	2,745
Animal Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues		2,988	2,932
Other Segments [Member]
Disaggregation of Revenue [Line Items]
Revenues	380	367	352
Non MTM Products and Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	22,793	19,101	22,389
Non MTM Products and Services [Member] | Ag Services and Oilseeds [Member]
Disaggregation of Revenue [Line Items]
Revenues	6,336	6,093	8,174
Non MTM Products and Services [Member] | Ag Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,437	3,531	5,208
Non MTM Products and Services [Member] | Crushing [Member]
Disaggregation of Revenue [Line Items]
Revenues	441	467	736
Non MTM Products and Services [Member] | Refined Products and Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,458	2,095	2,230
Non MTM Products and Services [Member] | Carbohydrate Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	9,365	6,841	8,186
Non MTM Products and Services [Member] | Starches and sweeteners [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,866	4,756	5,154
Non MTM Products and Services [Member] | Vantage Corn Processors
Disaggregation of Revenue [Line Items]
Revenues	3,499	2,085	3,032
Non MTM Products and Services [Member] | Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues	6,712	5,800	5,677
Non MTM Products and Services [Member] | Human Nutrition
Disaggregation of Revenue [Line Items]
Revenues	3,189	2,812	2,745
Non MTM Products and Services [Member] | Animal Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,523	2,988	2,932
Non MTM Products and Services [Member] | Other Segments [Member]
Disaggregation of Revenue [Line Items]
Revenues	380	367	352
Non MTM Products and Services [Member] | Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenues	22,187	18,678	21,874
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Ag Services and Oilseeds [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,730	5,670	7,659
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Ag Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,831	3,108	4,693
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Crushing [Member]
Disaggregation of Revenue [Line Items]
Revenues	441	467	736
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Refined Products and Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,458	2,095	2,230
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Carbohydrate Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	9,365	6,841	8,186
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Starches and sweeteners [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,866	4,756	5,154
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Vantage Corn Processors
Disaggregation of Revenue [Line Items]
Revenues	3,499	2,085	3,032
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues	6,712	5,800	5,677
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Human Nutrition
Disaggregation of Revenue [Line Items]
Revenues	3,189	2,812	2,745
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Animal Nutrition [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,523	2,988	2,932
Non MTM Products and Services [Member] | Transferred at Point in Time [Member] | Other Segments [Member]
Disaggregation of Revenue [Line Items]
Revenues	380	367	352
Non MTM Products and Services [Member] | Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenues	606	423	515
Non MTM Products and Services [Member] | Transferred over Time [Member] | Ag Services and Oilseeds [Member]
Disaggregation of Revenue [Line Items]
Revenues	606	423	515
Non MTM Products and Services [Member] | Transferred over Time [Member] | Ag Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	606	423	515
Mark-to-Market Products [Member]
Disaggregation of Revenue [Line Items]
Revenues	62,456	45,254	42,267
Mark-to-Market Products [Member] | Ag Services and Oilseeds [Member]
Disaggregation of Revenue [Line Items]
Revenues	60,711	43,623	40,567
Mark-to-Market Products [Member] | Ag Services [Member]
Disaggregation of Revenue [Line Items]
Revenues	41,580	29,195	26,497
Mark-to-Market Products [Member] | Crushing [Member]
Disaggregation of Revenue [Line Items]
Revenues	10,927	9,126	8,743
Mark-to-Market Products [Member] | Refined Products and Other [Member]
Disaggregation of Revenue [Line Items]
Revenues	8,204	5,302	5,327
Mark-to-Market Products [Member] | Carbohydrate Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,745	1,631	1,700
Mark-to-Market Products [Member] | Starches and sweeteners [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 1,745	$ 1,631	$ 1,700