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Financial Instruments (Schedule of gain/(loss) recognized in earnings for interest rate contracts designated as fair value hedges) (Details) - Interest Expense, Net - Fair Value Hedging - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2013
Interest Rate Swaps |  |  |  |
Derivative [Line Items] |  |  |  |
Gain/(loss) on derivative | [1],[2] | $ 14 | $ 23 | $ 28
Fixed Rate Debt |  |  |  |
Derivative [Line Items] |  |  |  |
Gain/(loss) on derivative | [2] | $ (14) | $ (23) | $ (28)
[1] | Excludes $22 million fair value adjustment to the previously terminated interest rate swaps as a result of the December 2014 debt extinguishment as disclosed in Note 7.
[2] | Included in interest expense, net in the consolidated statements of earnings.

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