Risks and Uncertainties Narrative (Details) gal in Billions	12 Months Ended
Oct. 31, 2016 gal
Concentration Risk [Line Items]
Sales Revenue, Goods, Net, Percentage	1.00%
UNITED STATES
Concentration Risk [Line Items]
Expected ethanol production capacity	15.2
Minimum [Member]
Concentration Risk [Line Items]
Sales Revenue, Goods, Net, Percentage	75.00%
Minimum [Member] \| Corn Contracts [Member]
Concentration Risk [Line Items]
Percent of Cost of Goods Sold	65.00%
Maximum [Member]
Concentration Risk [Line Items]
Sales Revenue, Goods, Net, Percentage	90.00%
Percent of Cost of Goods Sold	85.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611

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