Segment Information (Segment Information) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Information
Revenues	$ 17,186	$ 21,494	$ 34,692	$ 42,190
Earnings Before Income Taxes	526	735	1,216	1,101
Assets	40,568		40,568		$ 43,997
Segment Total [Member]
Segment Information
Earnings Before Income Taxes	808	888	1,663	1,579
Agricultural Services [Member]
Segment Information
Revenues	7,005	9,230	15,050	18,941
Earnings Before Income Taxes	152	184	346	326
Assets	9,362		9,362		10,250
Merchandising and handling [Member]
Segment Information
Revenues	6,074	8,241	13,101	16,993
Transportation [Member]
Segment Information
Revenues	57	58	111	103
Milling and other [Member]
Segment Information
Revenues	874	931	1,838	1,845
Corn Processing [Member]
Segment Information
Revenues	2,579	3,219	5,045	6,203
Earnings Before Income Taxes	204	338	317	524
Assets	6,188		6,188		6,384
Sweeteners and starches [Member]
Segment Information
Revenues	956	954	1,831	1,892
Bioproducts [Member]
Segment Information
Revenues	1,623	2,265	3,214	4,311
Oilseeds Processing [Member]
Segment Information
Revenues	6,822	8,680	13,115	16,335
Earnings Before Income Taxes	344	280	813	577
Assets	13,017		13,017		12,712
Crushing and origination [Member]
Segment Information
Revenues	4,217	5,437	7,992	9,983
Refining, packaging, biodiesel, and other [Member]
Segment Information
Revenues	1,782	2,276	3,466	4,392
Cocoa and other [Member]
Segment Information
Revenues	751	837	1,508	1,664
Asia [Member]
Segment Information
Revenues	72	130	149	296
Wild Flavors and Specialty Ingredients [Member]
Segment Information
Revenues	682	296	1,288	553
Earnings Before Income Taxes	104	75	172	133
Assets	3,213		3,213		3,468
Other [Member]
Segment Information
Revenues	98	69	194	158
Earnings Before Income Taxes	4	11	15	19
Assets	6,729		6,729		7,910
Financial [Member]
Segment Information
Revenues	98	69	194	158
Corporate Segment [Member]
Segment Information
Earnings Before Income Taxes	(282)	(153)	(447)	(478)
Assets	2,059		2,059		$ 3,273
Operating Segments [Member] | Agricultural Services [Member]
Segment Information
Revenues	7,833	10,022	16,911	20,837
Operating Segments [Member] | Corn Processing [Member]
Segment Information
Revenues	2,592	3,243	5,080	6,239
Operating Segments [Member] | Oilseeds Processing [Member]
Segment Information
Revenues	8,239	9,662	15,135	17,914
Operating Segments [Member] | Wild Flavors and Specialty Ingredients [Member]
Segment Information
Revenues	687	298	1,294	557
Operating Segments [Member] | Other [Member]
Segment Information
Revenues	158	129	317	275
Intersegment Elimination [Member]
Segment Information
Revenues	(2,323)	(1,860)	(4,045)	(3,632)
Intersegment Elimination [Member] | Agricultural Services [Member]
Segment Information
Revenues	(828)	(792)	(1,861)	(1,896)
Intersegment Elimination [Member] | Corn Processing [Member]
Segment Information
Revenues	(13)	(24)	(35)	(36)
Intersegment Elimination [Member] | Oilseeds Processing [Member]
Segment Information
Revenues	(1,417)	(982)	(2,020)	(1,579)
Intersegment Elimination [Member] | Wild Flavors and Specialty Ingredients [Member]
Segment Information
Revenues	(5)	(2)	(6)	(4)
Intersegment Elimination [Member] | Other [Member]
Segment Information
Revenues	$ (60)	$ (60)	$ (123)	$ (117)