v2.4.0.8
Derivative Financial Instruments (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended 9 Months Ended 12 Months Ended 3 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Sep. 30, 2014
Fair Value Hedging [Member]
bbl
Sep. 30, 2014
Fair Value Hedging [Member]
NYMEX Commodity Contracts [Member]
bbl
Sep. 30, 2014
Fair Value Hedging [Member]
NYMEX Commodity Contracts [Member]
Other Noncurrent Assets [Member]
Sep. 30, 2014
Fair Value Hedging [Member]
NYMEX Commodity Contracts [Member]
Other Current Assets [Member]
Sep. 30, 2014
Future Debt Issue [Member]
Cash Flow Hedging [Member]
Interest Rate Contract [Member]
Dec. 31, 2012
Future Debt Issue [Member]
Cash Flow Hedging [Member]
Interest Rate Contract [Member]
Mar. 31, 2014
Notes Due 2043 [Member]
Cash Flow Hedging [Member]
Interest Rate Contract [Member]
Derivative [Line Items]                        
Derivative, Notional Amount                   $ 200,000,000   $ 200,000,000
Derivative, Fair Value, Net                   1,800,000    
Debt Instrument, Face Amount 3,000,000,000.0   3,000,000,000.0   2,700,000,000.0             250,000,000
Debt Instrument, Interest Rate, Stated Percentage                       5.15%
Net loss on cash flow hedges(1) (1,830,000) [1] (36,000) [1] (5,443,000) [1] (4,596,000) [1]             11,000,000 (3,600,000)
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net                   200,000    
Energy commodity derivatives deposits 133,000   133,000   14,782,000              
Derivative, Nonmonetary Notional Amount           700,000 700,000          
Increase (Decrease) in Fair Value of Price Risk Fair Value Hedging Instruments             (11,000,000) (11,200,000) 200,000      
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months     $ (200,000)                  
[1] See Note 9–Derivative Financial Instruments for details of the amount of gain/loss recognized in accumulated other comprehensive loss ("AOCL") on derivatives and the amount of gain/loss reclassified from AOCL into income.