Inventories, Derivative Instruments & Hedging Activities (Fair Value Of Derivatives Designated As Hedging Instruments) (Details) (Designated As Hedging Instrument [Member], USD $) In Millions, unless otherwise specified	Jun. 30, 2011
Designated As Hedging Instrument [Member]
Derivative [Line Items]
Commodity Contracts Assets	$ 1
Total fair value of derivatives assets designated as hedging instrument	1
Commodity Contracts Liabilities	1
Total fair value of derivatives liabilities designated as hedging instrument	$ 1