Financial Instruments (Schedule of Fair Value Gain Loss Derivative Instrument) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Interest Rate Swap | Fair Value Hedging
Derivative [Line Items]
Derivative, Notional Amount	$ 1,438	$ 1,138
Derivative, Fair Value, Net	0	(11)
Interest Rate Swap | Cash Flow Hedging
Derivative [Line Items]
Derivative, Notional Amount	300	250
Derivative, Fair Value, Net	9	20
Foreign Exchange Contract | Cash Flow Hedging
Derivative [Line Items]
Derivative, Notional Amount	643	643
Derivative, Fair Value, Net	0	3
Commodity Contract | Cash Flow Hedging
Derivative [Line Items]
Derivative, Notional Amount	24	24
Derivative, Fair Value, Net	$ 1	$ 0