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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% |  |

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- Definition Estimated participation rates in pension plan voluntary lump-sum payments offer to be paid to certain former employees from plan assets. + References No definition available. + Details
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- Definition For pension plans, the amount of Increase or Decrease in the accumulated benefit obligation related to the effects of a settlement or curtailment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (r) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph r -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 15 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7577095&loc=d3e8001-114927 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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