Derivatives and Hedging Activities (Gains And Losses Recognized In Consolidated Statement Of Operations On Qualifying and Non-Qualifying Financial Instruments Other) (Details) (Restructuring And Other Charges [Member], Interest Rate Swap [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Restructuring And Other Charges [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 7