Asset Impairment, Exit, and Restructuring Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Asset Impairment Charges And Exit Costs [Line Items]
Asset impairment, exit, and restructuring costs	$ 12	$ 31	$ 25	$ 31
Corn Processing [Member]
Asset Impairment Charges And Exit Costs [Line Items]
Asset Impairment Charges	5		5
Ag, Corn, Oilseeds, and Corporate [Member]
Asset Impairment Charges And Exit Costs [Line Items]
Asset impairment, exit, and restructuring costs	$ 7		9
Corporate Segment [Member]
Asset Impairment Charges And Exit Costs [Line Items]
Asset Impairment Charges			$ 11
Oilseeds Processing [Member]
Asset Impairment Charges And Exit Costs [Line Items]
Asset Impairment Charges		28		28
Corn Processing and Agricultural Services [Member]
Asset Impairment Charges And Exit Costs [Line Items]
Asset Impairment Charges		$ 3		$ 3