Asset Impairment, Exit, and Restructuring Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs	$ 31	$ 31	$ 31	$ 31
Relocation costs [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs		16		16
Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs		$ 15		$ 15
Oilseeds Processing [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs	28		28
Corn Processing and Ag Services [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment, exit, and restructuring costs	$ 3		$ 3