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Financial Instruments (Schedule of gain/(loss) included in AOCI for derivative instruments designated as cash flow hedges) (Details) - Cash Flow Hedging - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2015 | Jun. 30, 2014
Interest Rate Swaps |  |
Derivative [Line Items] |  |
Gain/(loss) included in AOCI for derivative instruments designated as cash flow hedges | $ 0 | $ 9
Commodity Contracts |  |
Derivative [Line Items] |  |
Gain/(loss) included in AOCI for derivative instruments designated as cash flow hedges | (3) | 1
Foreign Currency Contracts |  |
Derivative [Line Items] |  |
Gain/(loss) included in AOCI for derivative instruments designated as cash flow hedges | $ 2 | $ (1)

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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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