XML 116 R38.htm IDEA: XBRL DOCUMENT v2.4.0.6
Defined Benefits (Tables)
 3 Months Ended
Mar. 31, 2013
Defined Benefits [Line Items]  
Schedule Of Net Periodic Defined Benefit Costs (Credits)

Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPL, PPL Energy Supply, LKE and LG&E for the periods ended March 31:

    Pension Benefits Other Postretirement Benefits
    U.S. U.K.      
    Three Months
    2013 2012 2013 2012 2013 2012
PPL                  
Service cost $ 31 $ 26 $ 18 $ 13 $ 4 $ 3
Interest cost   54   56   81   84   7   8
Expected return on plan assets   (74)   (66)   (118)   (111)   (6)   (6)
Amortization of:                  
  Transition obligation                  1
  Prior service cost   6   6      1      
  Actuarial (gain) loss    20   10   38   20   1   1
Net periodic defined benefit                   
 costs (credits) $37 $32 $19 $7 $6 $7
PPL Energy Supply LLC [Member]
  
Defined Benefits [Line Items]  
Schedule Of Net Periodic Defined Benefit Costs (Credits)

Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPL, PPL Energy Supply, LKE and LG&E for the periods ended March 31:

    Pension Benefits Other Postretirement Benefits
               
    Three Months
    2013 2012 2013 2012
PPL Energy Supply            
Service cost $ 2 $ 1      
Interest cost   2   2      
Expected return on plan assets   (3)   (2)      
Amortization of:            
  Actuarial (gain) loss   1   1      
Net periodic defined benefit costs (credits) $ 2 $ 2      

LKE            
Service cost $ 7 $ 6 $ 1 $ 1
Interest cost   16   17   2   2
Expected return on plan assets   (21)   (18)   (1)   (1)
Amortization of:            
  Prior service cost   1   1   1   1
  Actuarial (gain) loss    8   5      
Net periodic defined benefit costs (credits)  $ 11 $ 11 $ 3 $ 3
               
LG&E            
Service cost $ 1         
Interest cost   3 $ 4      
Expected return on plan assets   (5)   (5)      
Amortization of:            
  Prior service cost   1   1      
  Actuarial (gain) loss    3   3      
Net periodic defined benefit costs (credits)  $ 3 $ 3      
Allocation of Net Periodic Benefit Costs

For the periods ended March 31, PPL Services allocated the following net periodic defined benefit costs to PPL Energy Supply subsidiaries and PPL Electric, and LKE allocated the following net periodic defined benefit costs to LG&E and KU.

    Three Months
      2013 2012
             
PPL Energy Supply       $ 11 $ 10
PPL Electric         9   8
PPL Electric Utilities Corp [Member]
  
Defined Benefits [Line Items]  
Allocation of Net Periodic Benefit Costs

For the periods ended March 31, PPL Services allocated the following net periodic defined benefit costs to PPL Energy Supply subsidiaries and PPL Electric, and LKE allocated the following net periodic defined benefit costs to LG&E and KU.

    Three Months
      2013 2012
             
PPL Energy Supply       $ 11 $ 10
PPL Electric         9   8
LG And E And KU Energy LLC [Member]
  
Defined Benefits [Line Items]  
Schedule Of Net Periodic Defined Benefit Costs (Credits)

Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPL, PPL Energy Supply, LKE and LG&E for the periods ended March 31:

    Pension Benefits Other Postretirement Benefits
               
    Three Months
    2013 2012 2013 2012
PPL Energy Supply            
Service cost $ 2 $ 1      
Interest cost   2   2      
Expected return on plan assets   (3)   (2)      
Amortization of:            
  Actuarial (gain) loss   1   1      
Net periodic defined benefit costs (credits) $ 2 $ 2      

LKE            
Service cost $ 7 $ 6 $ 1 $ 1
Interest cost   16   17   2   2
Expected return on plan assets   (21)   (18)   (1)   (1)
Amortization of:            
  Prior service cost   1   1   1   1
  Actuarial (gain) loss    8   5      
Net periodic defined benefit costs (credits)  $ 11 $ 11 $ 3 $ 3
               
LG&E            
Service cost $ 1         
Interest cost   3 $ 4      
Expected return on plan assets   (5)   (5)      
Amortization of:            
  Prior service cost   1   1      
  Actuarial (gain) loss    3   3      
Net periodic defined benefit costs (credits)  $ 3 $ 3      
Louisville Gas And Electric Co [Member]
  
Defined Benefits [Line Items]  
Schedule Of Net Periodic Defined Benefit Costs (Credits)

Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPL, PPL Energy Supply, LKE and LG&E for the periods ended March 31:

    Pension Benefits Other Postretirement Benefits
               
    Three Months
    2013 2012 2013 2012
PPL Energy Supply            
Service cost $ 2 $ 1      
Interest cost   2   2      
Expected return on plan assets   (3)   (2)      
Amortization of:            
  Actuarial (gain) loss   1   1      
Net periodic defined benefit costs (credits) $ 2 $ 2      

LKE            
Service cost $ 7 $ 6 $ 1 $ 1
Interest cost   16   17   2   2
Expected return on plan assets   (21)   (18)   (1)   (1)
Amortization of:            
  Prior service cost   1   1   1   1
  Actuarial (gain) loss    8   5      
Net periodic defined benefit costs (credits)  $ 11 $ 11 $ 3 $ 3
               
LG&E            
Service cost $ 1         
Interest cost   3 $ 4      
Expected return on plan assets   (5)   (5)      
Amortization of:            
  Prior service cost   1   1      
  Actuarial (gain) loss    3   3      
Net periodic defined benefit costs (credits)  $ 3 $ 3      
Allocation of Net Periodic Benefit Costs

For the periods ended March 31, PPL Services allocated the following net periodic defined benefit costs to PPL Energy Supply subsidiaries and PPL Electric, and LKE allocated the following net periodic defined benefit costs to LG&E and KU.

    Three Months
      2013 2012
             
PPL Energy Supply       $ 11 $ 10
PPL Electric         9   8
Kentucky Utilities Co [Member]
  
Defined Benefits [Line Items]  
Allocation of Net Periodic Benefit Costs

For the periods ended March 31, PPL Services allocated the following net periodic defined benefit costs to PPL Energy Supply subsidiaries and PPL Electric, and LKE allocated the following net periodic defined benefit costs to LG&E and KU.

    Three Months
      2013 2012
             
PPL Energy Supply       $ 11 $ 10
PPL Electric         9   8