Segment Information (Segment Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Segment Information
Revenues	$ 17,506	$ 20,696
Earnings Before Income Taxes	690	366
Assets	41,715		44,027
Segment Total [Member]
Segment Information
Earnings Before Income Taxes	855	691
Agricultural Services [Member]
Segment Information
Revenues	8,045	9,711
Earnings Before Income Taxes	194	142
Assets	8,279		10,250
Merchandising and handling [Member]
Segment Information
Revenues	7,027	8,752
Transportation [Member]
Segment Information
Revenues	54	45
Milling and other [Member]
Segment Information
Revenues	964	914
Corn Processing [Member]
Segment Information
Revenues	2,466	2,984
Earnings Before Income Taxes	113	186
Assets	6,188		6,384
Sweeteners and starches [Member]
Segment Information
Revenues	875	938
Bioproducts [Member]
Segment Information
Revenues	1,591	2,046
Oilseeds Processing [Member]
Segment Information
Revenues	6,293	7,655
Earnings Before Income Taxes	469	297
Assets	13,033		12,712
Crushing and origination [Member]
Segment Information
Revenues	3,775	4,546
Refining, packaging, biodiesel, and other [Member]
Segment Information
Revenues	1,684	2,116
Cocoa and other [Member]
Segment Information
Revenues	757	827
Asia [Member]
Segment Information
Revenues	77	166
Wild Flavors and Specialty Ingredients [Member]
Segment Information
Revenues	606	257
Earnings Before Income Taxes	68	58
Assets	3,137		3,468
Other [Member]
Segment Information
Revenues	96	89
Earnings Before Income Taxes	11	8
Assets	7,706		7,910
Financial [Member]
Segment Information
Revenues	96	89
Corporate Segment [Member]
Segment Information
Earnings Before Income Taxes	(165)	(325)
Assets	3,372		3,303
Gross Revenues [Member] | Agricultural Services [Member]
Segment Information
Revenues	9,078	10,815
Gross Revenues [Member] | Corn Processing [Member]
Segment Information
Revenues	2,488	2,996
Gross Revenues [Member] | Oilseeds Processing [Member]
Segment Information
Revenues	6,896	8,252
Gross Revenues [Member] | Wild Flavors and Specialty Ingredients [Member]
Segment Information
Revenues	607	259
Gross Revenues [Member] | Other [Member]
Segment Information
Revenues	159	146
Intersegment Elimination [Member]
Segment Information
Revenues	1,722	1,772
Intersegment Elimination [Member] | Agricultural Services [Member]
Segment Information
Revenues	1,033	1,104
Intersegment Elimination [Member] | Corn Processing [Member]
Segment Information
Revenues	22	12
Intersegment Elimination [Member] | Oilseeds Processing [Member]
Segment Information
Revenues	603	597
Intersegment Elimination [Member] | Wild Flavors and Specialty Ingredients [Member]
Segment Information
Revenues	1	2
Intersegment Elimination [Member] | Other [Member]
Segment Information
Revenues	$ 63	$ 57