XML 21 R28.htm IDEA: XBRL DOCUMENT v3.3.0.814
Risk Management and Hedging Activities - Balance Sheet Location (Details) - Commodity Contract [Member] - USD ($)
$ in Millions
Sep. 30, 2015
Jun. 30, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Dec. 31, 2013
Derivatives, Fair Value [Line Items]            
Derivative, Fair Value, Net $ (132)   $ (85)      
Cash collateral, net receivable, offset against derivative positions 70   28      
Derivative Assets (Liabilities), at Fair Value, Net (62)   (57)      
Other Current Assets [Member]            
Derivatives, Fair Value [Line Items]            
Derivative, Fair Value, Net 7   18      
Cash collateral, net receivable, offset against derivative positions 0   0      
Derivative Assets (Liabilities), at Fair Value, Net 7   18      
Other Assets [Member]            
Derivatives, Fair Value [Line Items]            
Derivative, Fair Value, Net 0   0      
Cash collateral, net receivable, offset against derivative positions 0   0      
Derivative Assets (Liabilities), at Fair Value, Net 0   0      
Other Current Liabilities [Member]            
Derivatives, Fair Value [Line Items]            
Derivative, Fair Value, Net (49)   (54)      
Cash collateral, net receivable, offset against derivative positions 16   14      
Derivative Assets (Liabilities), at Fair Value, Net (33)   (40)      
Other Long-term Liabilities [Member]            
Derivatives, Fair Value [Line Items]            
Derivative, Fair Value, Net (90)   (49)      
Cash collateral, net receivable, offset against derivative positions 54   14      
Derivative Assets (Liabilities), at Fair Value, Net (36)   (35)      
Not Designated as Hedging Instrument [Member]            
Derivatives, Fair Value [Line Items]            
Commodity assets [1] 11   29      
Commodity liabilities [1] (143)   (114)      
Derivative, Fair Value, Net [1] (132)   (85)      
Regulatory asset 128 $ 99 85 $ 29 $ 0 $ 55
Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]            
Derivatives, Fair Value [Line Items]            
Commodity assets [1] 9   28      
Commodity liabilities [1] (2)   (10)      
Derivative, Fair Value, Net [1] 7   18      
Not Designated as Hedging Instrument [Member] | Other Assets [Member]            
Derivatives, Fair Value [Line Items]            
Commodity assets [1] 0   0      
Commodity liabilities [1] 0   0      
Derivative, Fair Value, Net [1] 0   0      
Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]            
Derivatives, Fair Value [Line Items]            
Commodity assets [1] 2   1      
Commodity liabilities [1] (51)   (55)      
Derivative, Fair Value, Net [1] (49)   (54)      
Not Designated as Hedging Instrument [Member] | Other Long-term Liabilities [Member]            
Derivatives, Fair Value [Line Items]            
Commodity assets [1] 0   0      
Commodity liabilities [1] (90)   (49)      
Derivative, Fair Value, Net [1] $ (90)   $ (49)      
[1] PacifiCorp's commodity derivatives are generally included in rates and as of September 30, 2015 and December 31, 2014, a regulatory asset of $128 million and $85 million, respectively, was recorded related to the net derivative liability of $132 million and $85 million, respectively.