Asset Impairment and Exit Costs (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Mar. 31, 2012	Mar. 31, 2012
Facility exit and other related costs	$ 14	$ 366
Number of postions to be eliminated		1,200
Reduction in annual pre-tax expenses due to orginizational restructure		150
Pension remeasurement		34
Corporate Segment [Member]
Facility exit and other related costs	3
Corn Processing [Member]
Facility exit and other related costs	14
Recovery of prior quarter facility exit and other related costs	$ 3