Segment Information (Segment Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Information
Revenues	$ (21,494)	$ (22,541)	$ (42,190)	$ (44,268)
Segment operating profit	735	317	1,101	692
Reportable segment totals [Member]
Segment Information
Segment operating profit	888	647	1,579	1,277
Oilseeds Processing [Member]
Segment Information
Revenues	(8,841)	(9,336)	(18,219)	(17,479)
Segment operating profit	327	321	661	634
Corn Processing [Member]
Segment Information
Revenues	(3,071)	(3,638)	(5,951)	(6,691)
Segment operating profit	347	223	543	376
Agricultural Services [Member]
Segment Information
Revenues	(9,513)	(9,530)	(21,377)	(20,030)
Segment operating profit	203	81	356	232
Other Segments [Member]
Segment Information
Revenues	(69)	(37)	(275)	(68)
Segment operating profit	11	22	19	35
Corporate Segment [Member]
Segment Information
Segment operating profit	(153)	(330)	(478)	(585)
Gross Revenues [Member] | Oilseeds Processing [Member]
Segment Information
Revenues	(9,821)	(10,371)	(16,644)	(19,083)
Gross Revenues [Member] | Corn Processing [Member]
Segment Information
Revenues	(3,102)	(3,686)	(5,901)	(6,773)
Gross Revenues [Member] | Agricultural Services [Member]
Segment Information
Revenues	(10,302)	(10,659)	(19,487)	(22,800)
Gross Revenues [Member] | Other Segments [Member]
Segment Information
Revenues	(129)	(90)	(158)	(177)
Intersegment Elimination [Member]
Segment Information
Revenues	1,860	2,265	3,632	4,565
Intersegment Elimination [Member] | Oilseeds Processing [Member]
Segment Information
Revenues	(980)	(1,035)	(1,575)	(1,604)
Intersegment Elimination [Member] | Corn Processing [Member]
Segment Information
Revenues	(31)	(48)	(50)	(82)
Intersegment Elimination [Member] | Agricultural Services [Member]
Segment Information
Revenues	(789)	(1,129)	(1,890)	(2,770)
Intersegment Elimination [Member] | Other Segments [Member]
Segment Information
Revenues	$ (60)	$ (53)	$ (117)	$ (109)