Segment Information (Segment Information) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Segment Information
Revenues	$ 15,629	$ 17,186	$ 30,013	$ 34,692
Earnings Before Income Taxes	407	526	713	1,216
Agricultural Services [Member]
Segment Information
Revenues	6,387	7,005	12,867	15,050
Earnings Before Income Taxes	97	152	172	346
Merchandising and handling [Member]
Segment Information
Revenues	5,506	6,074	11,185	13,101
Transportation [Member]
Segment Information
Revenues	56	57	111	111
Milling and other [Member]
Segment Information
Revenues	825	874	1,571	1,838
Corn Processing [Member]
Segment Information
Revenues	2,352	2,579	4,559	5,045
Earnings Before Income Taxes	219	204	350	317
Sweeteners and starches [Member]
Segment Information
Revenues	1,037	956	2,004	1,831
Bioproducts [Member]
Segment Information
Revenues	1,315	1,623	2,555	3,214
Oilseeds Processing [Member]
Segment Information
Revenues	6,099	6,822	11,096	13,115
Earnings Before Income Taxes	234	344	494	813
Crushing and origination [Member]
Segment Information
Revenues	4,033	4,217	7,139	7,992
Refining, packaging, biodiesel, and other [Member]
Segment Information
Revenues	2,041	2,533	3,810	4,974
Asia [Member]
Segment Information
Revenues	25	72	147	149
Wild Flavors and Specialty Ingredients [Member]
Segment Information
Revenues	680	682	1,272	1,288
Earnings Before Income Taxes	106	104	176	172
Other [Member]
Segment Information
Revenues	111	98	219	194
Earnings Before Income Taxes	24	4	61	15
Aggregate Segment [Member]
Segment Information
Earnings Before Income Taxes	680	808	1,253	1,663
Corporate Segment [Member]
Segment Information
Earnings Before Income Taxes	(273)	(282)	(540)	(447)
Operating Segments [Member] | Agricultural Services [Member]
Segment Information
Revenues	7,001	7,833	13,864	16,911
Operating Segments [Member] | Corn Processing [Member]
Segment Information
Revenues	2,364	2,592	4,584	5,080
Operating Segments [Member] | Oilseeds Processing [Member]
Segment Information
Revenues	7,316	8,239	13,408	15,135
Operating Segments [Member] | Wild Flavors and Specialty Ingredients [Member]
Segment Information
Revenues	686	687	1,282	1,294
Operating Segments [Member] | Other [Member]
Segment Information
Revenues	155	158	313	317
Intersegment Elimination [Member]
Segment Information
Revenues	(1,893)	(2,323)	(3,438)	(4,045)
Intersegment Elimination [Member] | Agricultural Services [Member]
Segment Information
Revenues	(614)	(828)	(997)	(1,861)
Intersegment Elimination [Member] | Corn Processing [Member]
Segment Information
Revenues	(12)	(13)	(25)	(35)
Intersegment Elimination [Member] | Oilseeds Processing [Member]
Segment Information
Revenues	(1,217)	(1,417)	(2,312)	(2,020)
Intersegment Elimination [Member] | Wild Flavors and Specialty Ingredients [Member]
Segment Information
Revenues	(6)	(5)	(10)	(6)
Intersegment Elimination [Member] | Other [Member]
Segment Information
Revenues	$ (44)	$ (60)	$ (94)	$ (123)