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
	Jun. 30, 2016	Jun. 30, 2015
Interest Rate Swaps
Derivative [Line Items]
Gain/(loss) included in AOCI for derivative instruments designated as cash flow hedges	$ (10)	$ 0
Commodity Contracts
Derivative [Line Items]
Gain/(loss) included in AOCI for derivative instruments designated as cash flow hedges	(3)	(3)
Foreign Currency Contracts
Derivative [Line Items]
Gain/(loss) included in AOCI for derivative instruments designated as cash flow hedges	$ (4)	$ 2