Derivative Instruments (Schedule Of Cash Flow Hedges) (Details)
$ in Millions
|12 Months Ended|
Dec. 31, 2013
|General Discussion of Derivative Instruments and Hedging Activities [Abstract]|
|Reduction to oil and condensate sales||$ (9.8)|
Amount before tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).
Reference 1: http://www.xbrl.org/2003/role/presentationRef