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Derivatives and Hedging (Tables)
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Derivative [Line Items]    
Notional Amounts Of Derivative Instruments Related To Interest Rate Risk
              
   March 31, 2014 December 31, 2013
(in millions) Duke Energy Duke Energy Ohio Duke Energy Duke Energy Ohio
Cash flow hedges(a) $ 798 $ $ 798 $
Undesignated contracts   27   27   34   27
Total notional amount $ 825 $ 27 $ 832 $ 27
              
              
(a)Duke Energy includes amounts related to non-recourse variable rate long-term debt of VIEs of $584 million at March 31, 2014, and at December 31, 2013.
              
 
Underlying Notional Amounts for Commodity Derivative Instruments Accounted for at Fair Value
  March 31, 2014
  Duke EnergyDuke Energy CarolinasProgress EnergyDuke Energy ProgressDuke Energy FloridaDuke Energy OhioDuke Energy Indiana
Electricity (gigawatt-hours)(a)  66,268  1,028  925  925   60,115  272
Natural gas (millions of decatherms)  604   352  128  224  254 
                
  December 31, 2013
  Duke EnergyDuke Energy CarolinasProgress EnergyDuke Energy ProgressDuke Energy FloridaDuke Energy OhioDuke Energy Indiana
Electricity (gigawatt-hours)(a)  71,466  1,205  925  925   69,362  203
Natural gas (millions of decatherms)  636   363  141  222  274 
                
Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets
             
  March 31, 2014 December 31, 2013
(in millions)Asset Liability Asset Liability
Derivatives Designated as Hedging Instruments           
Commodity contracts           
Current Liabilities: Other$ $ 1 $ $ 1
Interest rate contracts           
Investments and Other Assets: Other  21     27  
Current Liabilities: Other    16     18
Deferred Credits and Other Liabilities: Other    15     4
Total Derivatives Designated as Hedging Instruments  21   32   27   23
Derivatives Not Designated as Hedging Instruments           
Commodity contracts           
Current Assets: Other  27   7   201   158
Current Assets: Assets Held for Sale  9   1    
Investments and Other Assets: Other  7     215   131
Investments and Other Assets: Assets Held for Sale  312   257    
Current Liabilities: Other  22   116   13   153
Current Liabilities: Assets Held for Sale  398   463    
Deferred Credits and Other Liabilities: Other  4   92   5   166
Deferred Credits and Other Liabilities: Assets Held for Sale  3   39    
Interest rate contracts            
Current Liabilities: Other    1     1
Deferred Credits and Other Liabilities: Other    4     4
Total Derivatives Not Designated as Hedging Instruments  782   980   434   613
Total Derivatives$ 803 $ 1,012 $ 461 $ 636
             
 
Offsetting Assets and Liabilities
  March 31, 2014 
  Derivative Assets  Derivative Liabilities 
(in millions)Current(a) Non-Current(b)  Current(c) Non-Current(d) 
Gross amounts recognized$ 454 $ 338  $606 $ 399 
Gross amounts offset  (436)   (265)    (473)   (267) 
Net amount subject to master netting  18   73    133   132 
Amounts not subject to master netting    11   1   6 
Net amounts recognized on the Condensed Consolidated Balance Sheet$ 18 $ 84  $ 134 $ 138 
               
  December 31, 2013 
  Derivative Assets  Derivative Liabilities 
(in millions)Current(e) Non-Current(f)  Current(g) Non-Current(h) 
Gross amounts recognized$ 214 $ 233  $322 $ 299 
Gross amounts offset  (179)   (138)    (192)   (155) 
Net amounts subject to master netting  35   95    130   144 
Amounts not subject to master netting    14   4   11 
Net amounts recognized on the Condensed Consolidated Balance Sheet$ 35 $ 109  $ 134 $ 155 
               
Cash Flow Hedges-Location And Amount Of Pre-Tax (Losses) Recognized In Comprehensive Income
        
The following table shows the gains and losses recognized on cash flow hedges and the line items on the Condensed Consolidated Statements of Operations where such gains and losses are included when reclassified from AOCI.
        
  Three Months Ended March 31,
(in millions)2014 2013
Pretax Gains (Losses) Recorded in AOCI      
Interest rate contracts(a) $ 2 $ 13
Commodity contracts     1
Total Pretax Gains (Losses) Recorded in AOCI $ 2 $ 14
Location of Pretax Gains (Losses) Reclassified from AOCI into Earnings      
Interest rate contracts      
Interest expense $ (1) $ (1)
Total Pretax Losses Reclassified from AOCI into Earnings $ (1) $ (1)
        
(a)Reclassified to earnings as interest expense over the term of the related debt.
        
 
Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities
        
  Three Months Ended March 31,
(in millions)  2014  2013
Location of Pretax Gains and (Losses) Recognized in Earnings      
Commodity contracts      
Revenue: Regulated electric $ (4) $ 6
Revenue: Nonregulated electric, natural gas and other   (397)   (82)
Fuel used in electric generation and purchased power - regulated   7   (52)
Fuel used in electric generation and purchased power - nonregulated   138   (7)
Interest rate contracts      
Interest expense   (4)   (4)
Total Pretax Losses Recognized in Earnings $ (260) $ (139)
Location of Pretax Gains and (Losses) Recognized as Regulatory Assets or Liabilities      
Commodity contracts(a)      
Regulatory assets $ (2) $ 105
Regulatory liabilities   27   (5)
Interest rate contracts(b)      
Regulatory assets   4   13
Total Pretax Losses Recognized as Regulatory Assets or Liabilities $ 29 $ 113
        
(a)Reclassified to earnings to match recovery through the fuel clause.
(b)Reclassified to earnings as interest expense over the term of the related debt.
        
 
Schedule Of Information Regarding Derivative Instruments That Contain Credit-Risk Related Contingent Features
   March 31, 2014
(in millions) Duke Energy Progress Energy Duke Energy Progress Duke Energy Florida Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position $ 613 $ 142 $ 23 $ 119 $ 611
Fair value of collateral already posted   287   8     8   248
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered   26   135   23   112   26
                 
   December 31, 2013
(in millions) Duke Energy Progress Energy Duke Energy Progress Duke Energy Florida Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position $ 525 $ 168 $ 60 $ 108 $ 355
Fair value of collateral already posted   135   10     10   125
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered   205   158   60   98   47
                 
Schedule Of Cash Collateral Under Master Netting Arrangements
             
  March 31, 2014 December 31, 2013
(in millions)Receivables Payables Receivables Payables
Duke Energy           
Amounts offset against net derivative positions$ 39 $ $ 30 $
Amounts not offset against net derivative positions  248     122  
Progress Energy           
Amounts offset against net derivative positions  8     10  
Duke Energy Florida           
Amounts offset against net derivative positions  8     10  
Duke Energy Ohio           
Amounts offset against net derivative positions  31     19  
Amounts not offset against net derivative positions  217     115  
             
 
Progress Energy [Member]
   
Derivative [Line Items]    
Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets
             
  March 31, 2014 December 31, 2013
(in millions)Asset Liability Asset Liability
Derivatives Designated as Hedging Instruments            
Commodity contracts            
Current Liabilities: Other$ $ 1 $ $ 1
Deferred Credits and Other Liabilities: Other        4
Total Derivatives Designated as Hedging Instruments    1     5
Derivatives Not Designated as Hedging Instruments           
Commodity contracts           
Current Assets: Other  10   6   3   2
Investments and Other Assets: Other  1     2   1
Current Liabilities: Other  22   102   11   105
Deferred Credits and Other Liabilities: Other  3   81   4   91
Total Derivatives Not Designated as Hedging Instruments  36   189   20   199
Total Derivatives$ 36 $ 190 $ 20 $ 204
             
             
 
Offsetting Assets and Liabilities
  March 31, 2014 
  Derivative Assets  Derivative Liabilities 
(in millions)Current(a) Non-Current(b)  Current(c) Non-Current(d) 
Gross amounts recognized$ 32 $ 4  $108 $ 82 
Gross amounts offset  (28)   (4)    (34)   (6) 
Net amounts recognized on the Condensed Consolidated Balance Sheet$ 4 $  $ 74 $ 76 
               
  December 31, 2013 
  Derivative Assets  Derivative Liabilities 
(in millions)Current(a) Non-Current(b)  Current(c) Non-Current(d) 
Gross amounts recognized$ 15 $ 5  $107 $ 93 
Gross amounts offset  (13)   (4)    (17)   (10) 
Net amount subject to master netting  2   1    90   83 
Amounts not subject to master netting         4 
Net amounts recognized on the Condensed Consolidated Balance Sheet$ 2 $ 1  $ 90 $ 87 
               
Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities
        
The following table shows the gains and losses during the year recognized on undesignated derivatives and the line items on the Condensed Consolidated Statements of Operations and Comprehensive Income or the Condensed Consolidated Balance Sheets where the pretax gains or losses were reported.
        
  Three Months Ended March 31,
(in millions)  2014  2013
Location of Pretax Gains and (Losses) Recognized in Earnings      
Commodity contracts      
Operating revenues $ (3) $ 6
Fuel used in electric generation and purchased power   7   (52)
Interest rate contracts      
Interest expense   (4)   (4)
Total Pretax Losses Recognized in Earnings $ $ (50)
Location of Pretax Gains and (Losses) Recognized as Regulatory Assets or Liabilities      
Commodity contracts(a)      
Regulatory assets $ (2) $ 105
Interest rate contracts(b)      
Regulatory assets   4   5
Total Pretax (Losses) Gains Recognized as Regulatory Assets or Liabilities $ 2 $ 110
        
(a)Reclassified to earnings to match recovery through the fuel clause.
(b)Reclassified to earnings as interest expense over the term of the related debt.
        
 
Duke Energy Progress [Member]
   
Derivative [Line Items]    
Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets
             
  March 31, 2014 December 31, 2013
(in millions)Asset Liability Asset Liability
Derivatives Designated as Hedging Instruments           
Commodity contracts           
Current Liabilities: Other$ $ 1 $ $ 1
Total Derivatives Designated as Hedging Instruments    1     1
Derivatives Not Designated as Hedging Instruments           
Commodity contracts(a)           
Current Assets: Other  6   5    
Investments and Other Assets: Other  1     2   1
Current Liabilities: Other  7   43   2   40
Deferred Credits and Other Liabilities: Other  1   23   2   29
Total Derivatives Not Designated as Hedging Instruments  15   71   6   70
Total Derivatives$ 15 $ 72 $ 6 $ 71
             
(a)Substantially all of these contracts are recorded as regulatory assets or liabilities.
             
 
Offsetting Assets and Liabilities
  March 31, 2014 
  Derivative Assets  Derivative Liabilities 
(in millions)Current(a) Non-Current(b)  Current(c) Non-Current(d) 
Gross amounts recognized$ 13 $ 2  $ 48 $ 24 
Gross amounts offset  (11)   (2)    (11)   (2) 
Net amounts recognized on the Condensed Consolidated Balance Sheet$ 2 $  $ 37 $ 22 
               
  December 31, 2013 
  Derivative Assets  Derivative Liabilities 
(in millions)Current(a) Non-Current(b)  Current(c) Non-Current(d) 
Gross amounts recognized$ 3 $ 3  $41 $ 30 
Gross amounts offset  (3)   (3)    (3)   (3) 
Net amounts recognized on the Condensed Consolidated Balance Sheet$ $  $ 38 $ 27 
               
Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities
        
  Three Months Ended March 31,
(in millions)2014 2013
Location of Pretax Gains and (Losses) Recognized in Earnings      
Commodity contracts      
Operating revenues $ (3) $ 6
Fuel used in electric generation and purchased power   7   (17)
Interest rate contracts      
Interest expense   (3)   (3)
Total Pretax Losses Recognized in Earnings $ 1 $ (14)
Location of Pretax Gains and (Losses) Recognized as Regulatory Assets or Liabilities      
Commodity contracts(a)      
Regulatory assets $ 17 $ 36
Interest rate contracts(b)      
Regulatory assets   3   3
Total Pretax Losses Recognized as Regulatory Assets or Liabilities $ 20 $ 39
        
(a)Reclassified to earnings to match recovery through the fuel clause.
(b)Reclassified to earnings as interest expense over the term of the related debt.
        
 
Duke Energy Florida [Member]
   
Derivative [Line Items]    
Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets
             
  March 31, 2014 December 31, 2013
(in millions)Asset Liability Asset Liability
Derivatives Not Designated as Hedging Instruments           
Commodity contracts(a)           
Current Assets: Other  4   1   3   2
Current Liabilities: Other  15   58   9   64
Deferred Credits and Other Liabilities: Other  2   58   2   63
Total Derivatives$ 21 $ 117 $ 14 $ 129
             
(a)Substantially all of these contracts are recorded as regulatory assets or liabilities.
             
 
Offsetting Assets and Liabilities
  March 31, 2014 
  Derivative Assets  Derivative Liabilities 
(in millions)Current(a) Non-Current(b)  Current(c) Non-Current(d) 
Gross amounts recognized$ 19 $ 2  $59 $ 58 
Gross amounts offset  (16)   (2)    (20)   (6) 
Net amounts recognized on the Condensed Balance Sheet$ 3 $  $ 39 $ 52 
               
  December 31, 2013 
  Derivative Assets  Derivative Liabilities 
(in millions)Current(a) Non-Current(b)  Current(c) Non-Current(d) 
Gross amounts recognized$ 12 $ 2  $66 $ 63 
Gross amounts offset  (10)   (2)    (15)   (7) 
Net amounts recognized on the Condensed Balance Sheet$ 2 $  $ 51 $ 56 
               
Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities
        
  Three Months Ended March 31,
(in millions)2014 2013
Location of Pretax Gains and (Losses) Recognized in Earnings      
Commodity contracts      
Fuel used in electric generation and purchased power $ $ (35)
Interest rate contracts      
Interest expense   (1)   (1)
Total Pretax Losses Recognized in Earnings $ (1) $ (36)
Location of Pretax Gains and (Losses) Recognized as Regulatory Assets or Liabilities      
Commodity contracts(a)      
Regulatory assets $ (19) $ 69
Interest rate contracts      
Regulatory assets   1   1
Total Pretax Gains (Losses) Recognized as Regulatory Assets or Liabilities $ (18) $ 70
        
(a)Reclassified to earnings to match recovery through the fuel clause.
        
 
Duke Energy Ohio [Member]
   
Derivative [Line Items]    
Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets
             
  March 31, 2014 December 31, 2013
(in millions)Asset Liability Asset Liability
Derivatives Not Designated as Hedging Instruments           
Commodity contracts           
Current Assets: Other      186   163
Current Assets: Assets Held for Sale  7   1    
Investments and Other Assets: Other      202   130
Investments and Other Assets: Assets Held for Sale  315   256    
Current Liabilities: Other      1   36
Current Liabilities: Assets Held for Sale  407   479    
Deferred Credits and Other Liabilities: Other      2   56
Deferred Credits and Other Liabilities: Assets Held for Sale  3   37    
Interest rate contracts            
Current Liabilities: Other    1     1
Deferred Credits and Other Liabilities: Other    4     4
Total Derivatives$ 732 $ 778 $ 391 $ 390
             
 
Offsetting Assets and Liabilities
  March 31, 2014 
  Derivative Assets  Derivative Liabilities 
(in millions)Current(a) Non-Current(b)  Current(c) Non-Current(d) 
Gross amounts recognized$ 413 $ 319  $482 $ 296 
Gross amounts offset  (407)   (260)    (438)   (260) 
Net amounts recognized on the Condensed Consolidated Balance Sheet$ 6 $ 59  $ 44 $ 36 
               
  December 31, 2013 
  Derivative Assets  Derivative Liabilities 
(in millions)Current(e) Non-Current(f)  Current(g) Non-Current(h) 
Gross amounts recognized$ 186 $ 205  $199 $ 186 
Gross amounts offset  (165)   (132)    (173)   (143) 
Net amount subject to master netting  21   73    26   43 
Amounts not subject to master netting       1   4 
Net amounts recognized on the Condensed Consolidated Balance Sheet$ 21 $ 73  $ 27 $ 47 
               
Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities
        
  Three Months Ended March 31,
(in millions)2014 2013
Location of Pretax Gains and (Losses) Recognized in Earnings      
Commodity contracts      
Revenue: Nonregulated electric, natural gas and other $ (449) $ (91)
Fuel used in electric generation and purchased power - nonregulated   138   (7)
Total Pretax (Losses) Gains Recognized in Earnings $ (311) $ (98)
Location of Pretax Gains and (Losses) Recognized as Regulatory Assets or Liabilities      
Commodity contracts      
Regulatory liabilities   2  
Interest rate contracts      
Regulatory assets $ $ 1
Total Pretax Gains (Losses) Recognized as Regulatory Assets or Liabilities $ 2 $ 1