Asset Impairment, Exit, and Restructuring Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs	$ 65	$ 0	$ 96	$ 31
Relocation costs [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs				16
Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs				$ 15
Corn Processing [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs	33		34
Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs	28		28
Oilseeds Processing [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs	$ 4		32
Agricultural Services [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs			$ 2