Fair Value Measurements And Financial Instruments (Derivative Financial Instruments Designated As Hedging Instruments Recorded At Fair Value) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Jun. 30, 2011
Derivative [Line Items]
Cash flow hedge derivative instrument assets, at fair value	$ 2	$ 5
Cash flow hedge derivative instrument liabilities, at fair value	1	1
Interest Rate Contracts [Member] | Accrued Liabilities [Member]
Derivative [Line Items]
Interest rate cash flow hedge liability, at fair value		1
Interest Rate Contracts [Member] | Other Current Assets [Member]
Derivative [Line Items]
Interest rate cash flow hedge asset, at fair value		1
Foreign Exchange Contracts [Member] | Other Current Assets [Member]
Derivative [Line Items]
Foreign currency cash flow hedge asset, at fair value	1
Commodity Purchase Contracts [Member] | Accrued Liabilities [Member]
Derivative [Line Items]
Price risk cash flow hedge liability, at fair value	1
Commodity Purchase Contracts [Member] | Other Current Assets [Member]
Derivative [Line Items]
Price risk cash flow hedge asset, at fair value	$ 1	$ 4