Asset Impairment and Exit Costs (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Mar. 31, 2012	Mar. 31, 2012
Employee-related costs	$ 71	$ 71
Facility exit and other related costs	14	366
Total asset impairment, exit and restructuring costs	85	437
Corn Processing [Member]
Facility exit and other related costs	$ 14