Asset Impairment, Exit, and Restructuring Costs (Asset Impairment Charges And Exit Costs) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended				12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2014		Dec. 31, 2013		Jun. 30, 2012
Restructuring, Settlement and Impairment Provisions [Abstract]
Relocation and restructuring costs	$ 0		$ 0		$ 64	[1]	$ 0		$ 71	[1]
Equity Method Investment, Other than Temporary Impairment	146	[2]	0		0		0		0
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	0		13	[3]	6	[3]	166	[3]	25	[3]
Goodwill, Impairment Loss	0		0		0		9	[4]	0
Other Asset Impairment Charges	0		339	[5]	35	[5]	84	[5]	353	[5]
Restructuring, Settlement and Impairment Provisions	$ 146		$ 352		$ 105		$ 259		$ 449

[1] Relocation and restructuring costs recognized in the year ended December 31, 2014 consisted of costs associated with the relocation of the Company’s global headquarters to Chicago, Illinois, of $16 million and restructuring charges related to the Wild Flavors acquisition and Toepfer integration following the acquisition of the minority interest and other restructuring charges of $48 million. In the year ended June 30, 2012, these costs primarily consisted of $37 million of one-time termination benefits provided to employees who have been involuntarily terminated and $34 million for pension and postretirement remeasurement charges triggered by an amendment of the Company's U.S. plans due to the voluntary early retirement program.

[2] As part of the Company’s ongoing portfolio management, the Company decided to divest its interests in Gruma S.A.B. de C.V. and related joint ventures (“Gruma”). As a result, the Company’s equity method investments in Gruma were evaluated for impairment. In the quarter ended September 30, 2012, the Company recorded a $146 million pre-tax asset impairment charge ($0.16 per share after tax) on its investments in Gruma by comparing the carrying value, including $123 million of cumulative unrealized foreign currency translation losses, to estimated fair value. Fair value was estimated based on negotiations which resulted in the Company entering into a non-binding letter of intent to sell its interests in Gruma to a third party on October 16, 2012. The Company sold its interest in Gruma in December 2012.

[3] Asset impairment charge - equity securities for the fiscal year ended December 31, 2014, the six months ended December 31, 2011 and the year ended June 30, 2012 consisted of other-than-temporary investment writedowns of available for sale securities in Corporate. Asset impairment charge - equity securities for the fiscal year ended December 31, 2013 consisted of other-than-temporary impairment charges of $155 million on the Company's GrainCorp investment in the Agricultural Services segment and $11 million on one other available for sale security in Corporate.

[4] The Company recognized a goodwill impairment charge related to its Brazilian sugar milling business in the Corn Processing segment for the fiscal year ended December 31, 2013.

[5] Asset impairments for the fiscal year ended December 31, 2014 consisted of property, plant, and equipment asset impairments of $3 million in the Oilseeds Processing segment, $15 million in the Corn Processing segment, and $17 million in the Agricultural Services segment. Asset impairments for the fiscal year ended December 31, 2013 consisted of property, plant, and equipment asset impairments of $4 million in the Oilseeds Processing segment, $62 million in the Corn Processing segment, $3 million in the Agricultural Services segment, and $15 million in Corporate. Asset impairments for the six months ended December 31, 2011 consisted of asset impairment charges and other costs related to the exit of the Clinton, IA, bioplastics facility in the Corn Processing segment. Asset impairment charges for the fiscal year ended June 30, 2012 consisted of asset impairment charges and other costs of $349 million related to the exit of the Clinton, IA, bioplastics and Walhalla, ND, ethanol facilities in the Corn Processing segment and other facility exit-related costs of $4 million in Corporate.