Subsequent Events (Narrative) (Details) (USD $) In Millions, unless otherwise specified		3 Months Ended
	Oct. 19, 2011 GrainCorp Limited [Member]	Sep. 30, 2012 Minimum [Member]	Sep. 30, 2012 Maximum [Member]
Estimated participation in pension plan voluntary lump sum payments offer, as a percent		50.00%	75.00%
Reduction in global pension benefit obligation as a result of voluntary lump sum payments		$ 140	$ 210
Improvement in pension underfunding as a result of pension plan voluntary lump-sum payments		35	55
Non-cash charge resulting from expensing unrealized actuarial losses in AOCI that relate to liabilities that will be settled as a result of pension plan voluntary lump-sum payments, pre-tax		45	65
Ongoing annual reduction of pension expense as a result of pension plan voluntary lump-sum payments, pre-tax		$ 4	$ 5
Economic interest held by the Company	14.90%