XML 47 R39.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Derivative Instruments and Hedging Activities (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Feb. 15, 2011
Dec. 31, 2010
Derivative Instruments and Hedging Activities [Abstract]            
Net liability position of settled interest rate swap         $ 40,000,000  
AOCL amount, net of tax, to be reclassified to interest expense over the life of the debt         26,000,000  
Derivatives, Fair Value [Line Items]            
Derivative Asset, Fair Value 5,000,000   5,000,000     62,000,000
Derivative Liability, Fair Value 180,000,000   180,000,000     138,000,000
Derivative Instruments, Gain (Loss) [Line Items]            
Unrealized (Gain) Loss on Commodity Derivative Instruments     160,000,000 (210,000,000)    
Total (Gain) Loss on Commodity Derivative Instruments (143,000,000) (96,000,000) 143,000,000 (242,000,000)    
Amount of Deferred Losses Related to Interest Rate Derivative Instruments to be Amortized to Interest Expense Over the Life of the Related Debt Issuance 27,000,000   27,000,000      
Amount of Deferred Losses Related to Interest Rate Derivative Instruments Currently Being Reclassified Into Earnings 2,000,000   2,000,000      
Crude Oil Commodity Contract [Member] | Two Way Collar 1 [Member]
           
Derivative [Line Items]            
Period     2011      
Index     NYMEX WTI      
Volume Per Day 13,000   13,000      
Weighted Average Fixed Price $ 0   $ 0      
Weighted Average Short Put Price $ 0   $ 0      
Weighted Average Floor Price $ 80.15   $ 80.15      
Weighted Average Ceiling Price $ 94.63   $ 94.63      
Crude Oil Commodity Contract [Member] | Three Way Collars 1 [Member]
           
Derivative [Line Items]            
Period     2011      
Index     NYMEX WTI      
Volume Per Day 12,000   12,000      
Weighted Average Fixed Price $ 0   $ 0      
Weighted Average Short Put Price $ 58.33   $ 58.33      
Weighted Average Floor Price $ 78.33   $ 78.33      
Weighted Average Ceiling Price $ 100.71   $ 100.71      
Crude Oil Commodity Contract [Member] | Basis Swaps 1 [Member]
           
Derivative [Line Items]            
Period     2011      
Index     NYMEX WTI [1]      
Volume Per Day 5,000   5,000      
Weighted Average Fixed Price $ 85.52   $ 85.52      
Weighted Average Short Put Price $ 0   $ 0      
Weighted Average Floor Price $ 0   $ 0      
Weighted Average Ceiling Price $ 0   $ 0      
Crude Oil Commodity Contract [Member] | Basis Swaps 2 [Member]
           
Derivative [Line Items]            
Period     2012      
Index     NYMEX WTI      
Volume Per Day 5,000   5,000      
Weighted Average Fixed Price $ 91.84   $ 91.84      
Weighted Average Short Put Price $ 0   $ 0      
Weighted Average Floor Price $ 0   $ 0      
Weighted Average Ceiling Price $ 0   $ 0      
Crude Oil Commodity Contract [Member] | Three Way Collars 2 [Member]
           
Derivative [Line Items]            
Period     2012      
Index     NYMEX WTI      
Volume Per Day 23,000   23,000      
Weighted Average Fixed Price $ 0   $ 0      
Weighted Average Short Put Price $ 61.09   $ 61.09      
Weighted Average Floor Price $ 83.04   $ 83.04      
Weighted Average Ceiling Price $ 101.66   $ 101.66      
Crude Oil Commodity Contract [Member] | Basis Swaps 3 [Member]
           
Derivative [Line Items]            
Period     2012      
Index     Dated Brent      
Volume Per Day 8,000   8,000      
Weighted Average Fixed Price $ 89.06   $ 89.06      
Weighted Average Short Put Price $ 0   $ 0      
Weighted Average Floor Price $ 0   $ 0      
Weighted Average Ceiling Price $ 0   $ 0      
Crude Oil Commodity Contract [Member] | Three Way Collars 3 [Member]
           
Derivative [Line Items]            
Period     2012      
Index     Dated Brent      
Volume Per Day 3,000   3,000      
Weighted Average Fixed Price $ 0   $ 0      
Weighted Average Short Put Price $ 70.00   $ 70.00      
Weighted Average Floor Price $ 95.83   $ 95.83      
Weighted Average Ceiling Price $ 105.00   $ 105.00      
Crude Oil Commodity Contract [Member] | Basis Swaps 4 [Member]
           
Derivative [Line Items]            
Period     2013      
Index     Dated Brent      
Volume Per Day 3,000   3,000      
Weighted Average Fixed Price $ 98.03   $ 98.03      
Weighted Average Short Put Price $ 0   $ 0      
Weighted Average Floor Price $ 0   $ 0      
Weighted Average Ceiling Price $ 0   $ 0      
Crude Oil Commodity Contract [Member] | Three Way Collars 4 [Member]
           
Derivative [Line Items]            
Period     2013      
Index     NYMEX WTI      
Volume Per Day 5,000   5,000      
Weighted Average Fixed Price $ 0   $ 0      
Weighted Average Short Put Price $ 65.00   $ 65.00      
Weighted Average Floor Price $ 85.00   $ 85.00      
Weighted Average Ceiling Price $ 113.63   $ 113.63      
Crude Oil Commodity Contract [Member] | Three Way Collars 5 [Member]
           
Derivative [Line Items]            
Period     2013      
Index     Dated Brent      
Volume Per Day 12,000   12,000      
Weighted Average Fixed Price $ 0   $ 0      
Weighted Average Short Put Price $ 75.83   $ 75.83      
Weighted Average Floor Price $ 97.50   $ 97.50      
Weighted Average Ceiling Price $ 125.93   $ 125.93      
Derivative Instruments in Cash Flow Hedging Relationships [Member] | Crude Oil Commodity Contract [Member]
           
Derivative Instruments, Gain (Loss) [Line Items]            
Amount of (Gain) Loss on Derivative Instruments Recognized in Other Comprehensive (Income) Loss 0 0 0 0    
Amount of (Gain) Loss on Derivative Instruments Reclassified from Accumulated Other Comprehensive Loss 0 4,000,000 0 9,000,000    
Natural Gas Commodity Contract [Member] | Two Way Collar 1 [Member]
           
Derivative [Line Items]            
Period     2011      
Index     NYMEX HH      
Volume Per Day 140,000   140,000      
Weighted Average Fixed Price $ 0   $ 0      
Weighted Average Short Put Price $ 0   $ 0      
Weighted Average Floor Price $ 5.95   $ 5.95      
Weighted Average Ceiling Price $ 6.82   $ 6.82      
Natural Gas Commodity Contract [Member] | Three Way Collars 1 [Member]
           
Derivative [Line Items]            
Period     2011      
Index     NYMEX HH      
Volume Per Day 50,000   50,000      
Weighted Average Fixed Price $ 0   $ 0      
Weighted Average Short Put Price $ 4.00   $ 4.00      
Weighted Average Floor Price $ 5.00   $ 5.00      
Weighted Average Ceiling Price $ 6.70   $ 6.70      
Natural Gas Commodity Contract [Member] | Basis Swaps 1 [Member]
           
Derivative [Line Items]            
Period     2011      
Index     NYMEX HH [2]      
Volume Per Day 25,000   25,000      
Weighted Average Fixed Price $ 6.41   $ 6.41      
Weighted Average Short Put Price $ 0   $ 0      
Weighted Average Floor Price $ 0   $ 0      
Weighted Average Ceiling Price $ 0   $ 0      
Natural Gas Commodity Contract [Member] | Basis Swaps 2 [Member]
           
Derivative [Line Items]            
Period     2012      
Index     NYMEX HH      
Volume Per Day 30,000   30,000      
Weighted Average Fixed Price $ 5.10   $ 5.10      
Weighted Average Short Put Price $ 0   $ 0      
Weighted Average Floor Price $ 0   $ 0      
Weighted Average Ceiling Price $ 0   $ 0      
Natural Gas Commodity Contract [Member] | Three Way Collars 2 [Member]
           
Derivative [Line Items]            
Period     2012      
Index     NYMEX HH      
Volume Per Day 110,000   110,000      
Weighted Average Fixed Price $ 0   $ 0      
Weighted Average Short Put Price $ 4.44   $ 4.44      
Weighted Average Floor Price $ 5.25   $ 5.25      
Weighted Average Ceiling Price $ 6.66   $ 6.66      
Natural Gas Commodity Contract [Member] | Basis Swaps 3 [Member]
           
Derivative [Line Items]            
Period     2013      
Index     NYMEX HH      
Volume Per Day 30,000   30,000      
Weighted Average Fixed Price $ 5.25   $ 5.25      
Weighted Average Short Put Price $ 0   $ 0      
Weighted Average Floor Price $ 0   $ 0      
Weighted Average Ceiling Price $ 0   $ 0      
Natural Gas Commodity Contract [Member] | Three Way Collars 3 [Member]
           
Derivative [Line Items]            
Period     2013      
Index     NYMEX HH      
Volume Per Day 50,000   50,000      
Weighted Average Fixed Price $ 0   $ 0      
Weighted Average Short Put Price $ 4.00   $ 4.00      
Weighted Average Floor Price $ 5.25   $ 5.25      
Weighted Average Ceiling Price $ 5.59   $ 5.59      
Natural Gas Commodity Contract [Member] | Basis Swaps 4 [Member]
           
Derivative [Line Items]            
Period     2011      
Index     IFERC CIG [3]      
Index Less Differential     NYMEX HH      
Volume Per Day 140,000   140,000      
Weighted Average Differential (0.70)   (0.70)      
Natural Gas Commodity Contract [Member] | Basis Swaps 5 [Member]
           
Derivative [Line Items]            
Period     2012      
Index     IFERC CIG      
Index Less Differential     NYMEX HH      
Volume Per Day 150,000   150,000      
Weighted Average Differential (0.52)   (0.52)      
Derivative Instruments in Cash Flow Hedging Relationships [Member] | Natural Gas Commodity Contract [Member]
           
Derivative Instruments, Gain (Loss) [Line Items]            
Amount of (Gain) Loss on Derivative Instruments Recognized in Other Comprehensive (Income) Loss 0 0 0 0    
Amount of (Gain) Loss on Derivative Instruments Reclassified from Accumulated Other Comprehensive Loss 0 0 0 1,000,000    
Derivative Instruments Not Designated as Hedging Instruments [Member] | Commodity derivative instruments [Member] | Interest Expense [Member]
           
Derivative Instruments, Gain (Loss) [Line Items]            
Realized Mark-to-Market Gain (1,000,000) (33,000,000) (17,000,000) (32,000,000)    
Unrealized (Gain) Loss on Commodity Derivative Instruments (142,000,000) (63,000,000) 160,000,000 (210,000,000)    
Total (Gain) Loss on Commodity Derivative Instruments (143,000,000) (96,000,000) 143,000,000 (242,000,000)    
Commodity derivative instruments [Member] | Current Assets [Member]
           
Derivatives, Fair Value [Line Items]            
Derivative Asset Not Designated as Hedging Instrument, Fair Value 5,000,000   5,000,000     62,000,000
Derivative Liability Designated as Hedging Instrument, Fair Value 0   0      
Commodity derivative instruments [Member] | Noncurrent Assets [Member]
           
Derivatives, Fair Value [Line Items]            
Derivative Asset Not Designated as Hedging Instrument, Fair Value 0   0     0
Derivative Liability Not Designated as Hedging Instrument, Fair Value           51,000,000
Commodity derivative instruments [Member] | Current Liabilities [Member]
           
Derivatives, Fair Value [Line Items]            
Derivative Liability Not Designated as Hedging Instrument, Fair Value 61,000,000   61,000,000     24,000,000
Commodity derivative instruments [Member] | Noncurrent Liabilities [Member]
           
Derivatives, Fair Value [Line Items]            
Derivative Liability Not Designated as Hedging Instrument, Fair Value 119,000,000   119,000,000      
Derivative Instruments in Cash Flow Hedging Relationships [Member] | Interest rate derivative instruments [Member]
           
Derivative Instruments, Gain (Loss) [Line Items]            
Amount of (Gain) Loss on Derivative Instruments Recognized in Other Comprehensive (Income) Loss 0 83,000,000 (23,000,000) 94,000,000    
Amount of (Gain) Loss on Derivative Instruments Reclassified from Accumulated Other Comprehensive Loss 0 0 1,000,000 0    
Interest rate derivative instruments [Member] | Current Assets [Member]
           
Derivatives, Fair Value [Line Items]            
Derivative Asset Designated as Hedging Instrument, Fair Value 0   0     0
Interest rate derivative instruments [Member] | Current Liabilities [Member]
           
Derivatives, Fair Value [Line Items]            
Derivative Liability Designated as Hedging Instrument, Fair Value           63,000,000
Derivative Instruments in Cash Flow Hedging Relationships [Member]
           
Derivative Instruments, Gain (Loss) [Line Items]            
Amount of (Gain) Loss on Derivative Instruments Recognized in Other Comprehensive (Income) Loss 0 83,000,000 (23,000,000) 94,000,000    
Amount of (Gain) Loss on Derivative Instruments Reclassified from Accumulated Other Comprehensive Loss $ 0 $ 4,000,000 $ 0 $ 10,000,000    
[1] West Texas Intermediate
[2] Henry Hub
[3] Colorado Interstate Gas - Northern System