Segment Information (Segment Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Segment Information
Sales to external customers	$ 22,541	$ 22,675	$ 44,268	$ 43,830
Intersegment sales	2,265	2,507	4,565	4,538
Net sales	22,541	22,675	44,268	43,830
Segment operating profit	317	416	692	984
Reportable segment totals [Member]
Segment Information
Segment operating profit	647	544	1,277	1,462
Oilseeds Processing
Segment Information
Sales to external customers	9,336	9,663	17,479	17,378
Intersegment sales	1,035	991	1,604	1,539
Net sales	10,371	10,654	19,083	18,917
Segment operating profit	321	331	634	873
Corn Processing [Member]
Segment Information
Sales to external customers	3,638	2,828	6,691	5,663
Intersegment sales	48	27	82	60
Net sales	3,686	2,855	6,773	5,723
Segment operating profit	223	74	376	207
Agricultural Services [Member]
Segment Information
Sales to external customers	9,530	10,147	20,030	20,718
Intersegment sales	1,129	1,448	2,770	2,858
Net sales	10,659	11,595	22,800	23,576
Segment operating profit	81	123	232	384
Other [Member]
Segment Information
Sales to external customers	37	37	68	71
Intersegment sales	53	41	109	81
Net sales	90	78	177	152
Segment operating profit	22	16	35	(2)
Intersegment Elimination [Member]
Segment Information
Net sales	(2,265)	(2,507)	(4,565)	(4,538)
Corporate [Member]
Segment Information
Segment operating profit	$ (330)	$ (128)	$ (585)	$ (478)

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Article 5

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- Definition

Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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Amount of revenue from external customers for the reportable segment. Such disclosure is presented if the amount is: (a) included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 27

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Amount of revenue from transactions with other operating segments of the same entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 131

-Paragraph 27

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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