Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Jun. 30, 2011
Sales to external customers	$ 23,306	$ 20,930	$ 45,208	$ 37,729
Intersegment sales	1,529	1,502	3,030	2,515
Net Sales	23,306	20,930	45,208	37,729
Interest expense	96	115	209	232
Interest income	22	41	62	65
Equity in earnings of unconsolidated affiliates	127	138	251	263
Operating Profit	121	998	781	1,460
Investments in and advances to affiliates	3,211		3,211		3,240
Identifiable assets	41,516		41,516		42,193
Reportable Segment Totals [Member]
Operating Profit	309	1,362	1,008	2,127
Oilseeds Processing [Member]
Sales to external customers	7,513	5,848	15,839	11,939
Intersegment sales	339	408	721	794
Net Sales	7,852	6,256	16,560	12,733
Operating Profit	253	325	474	633
Corn Processing [Member]
Sales to external customers	3,158	2,449	6,451	4,604
Intersegment sales	38	45	113	76
Net Sales	3,196	2,494	6,564	4,680
Operating Profit	(133)	399	46	740
Agricultural Services [Member]
Sales to external customers	11,034	11,165	19,700	18,091
Intersegment sales	1,111	1,011	2,117	1,571
Net Sales	12,145	12,176	21,817	19,662
Operating Profit	158	426	402	558
Other [Member]
Sales to external customers	1,601	1,468	3,218	3,095
Intersegment sales	41	38	79	74
Net Sales	1,642	1,506	3,297	3,169
Operating Profit	31	212	86	196
Intersegment Elimination [Member]
Net Sales	(1,529)	(1,502)	(3,030)	(2,515)
Corporate [Member]
Operating Profit	$ (188)	$ (364)	$ (227)	$ (667)