Financial Instruments (Schedule of Outstanding Instruments, Economic Hedges) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Derivative [Line Items]
Document Period End Date	Jun. 30, 2017
Foreign Currency Contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	$ 558	$ 492
Minimum | Foreign Currency Contracts | Not Designated as Hedging Instrument
Derivative [Line Items]
Maturity Date	Jul. 28, 2017	Jul. 28, 2016