Segment Information (Segment Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Information
Revenues	$ 18,117	$ 21,393	$ 60,307	$ 65,661
Earnings Before Income Taxes	1,033	709	2,134	1,401
Segment Total [Member]
Segment Information
Segment Operating Profit	1,073	606	2,652	1,883
Oilseeds Processing [Member]
Segment Information
Revenues	7,854	9,216	24,498	26,695
Segment Operating Profit	362	361	1,023	995
Crushing and origination [Member]
Segment Information
Revenues	4,632	5,588	14,615	15,950
Segment Operating Profit	214	242	538	583
Refining, packaging, biodiesel, and other [Member]
Segment Information
Revenues	2,253	2,666	6,955	7,799
Segment Operating Profit	96	85	328	286
Cocoa and other [Member]
Segment Information
Revenues	895	809	2,559	2,403
Segment Operating Profit	26	5	51	(23)
Asia [Member]
Segment Information
Revenues	74	153	369	543
Segment Operating Profit	26	29	106	149
Corn Processing [Member]
Segment Information
Revenues	2,896	3,393	8,797	10,084
Segment Operating Profit	363	159	906	535
Sweeteners and starches [Member]
Segment Information
Revenues	1,003	1,206	2,879	3,710
Segment Operating Profit	170	100	414	302
Bioproducts [Member]
Segment Information
Revenues	1,893	2,187	5,918	6,374
Segment Operating Profit	193	59	492	233
Agricultural Services [Member]
Segment Information
Revenues	7,284	8,751	26,771	28,781
Segment Operating Profit	315	102	671	334
Merchandising and handling [Member]
Segment Information
Revenues	6,206	7,617	23,586	25,380
Segment Operating Profit	220	4	404	104
Transportation [Member]
Segment Information
Revenues	78	68	181	163
Segment Operating Profit	35	21	95	30
Milling and other [Member]
Segment Information
Revenues	1,000	1,066	3,004	3,238
Segment Operating Profit	60	77	172	200
Other [Member]
Segment Information
Revenues	83	33	241	101
Segment Operating Profit	33	(16)	52	19
Financial [Member]
Segment Information
Revenues	83	33	241	101
Segment Operating Profit	33	(16)	52	19
Corporate Segment [Member]
Segment Information
Corporate Results	(40)	103	(518)	(482)
Gross Revenues [Member] | Oilseeds Processing [Member]
Segment Information
Revenues	8,484	10,429	26,703	29,512
Gross Revenues [Member] | Corn Processing [Member]
Segment Information
Revenues	2,928	3,437	8,879	10,210
Gross Revenues [Member] | Agricultural Services [Member]
Segment Information
Revenues	8,276	9,829	29,653	32,629
Gross Revenues [Member] | Other [Member]
Segment Information
Revenues	145	84	420	261
Intersegment Elimination [Member]
Segment Information
Revenues	1,716	2,386	5,348	6,951
Intersegment Elimination [Member] | Oilseeds Processing [Member]
Segment Information
Revenues	630	1,213	2,205	2,817
Intersegment Elimination [Member] | Corn Processing [Member]
Segment Information
Revenues	32	44	82	126
Intersegment Elimination [Member] | Agricultural Services [Member]
Segment Information
Revenues	992	1,078	2,882	3,848
Intersegment Elimination [Member] | Other [Member]
Segment Information
Revenues	$ 62	$ 51	$ 179	$ 160